Pre-Installation Manual Vitara Modelocked Ti:Sapphire … · Preface i - v Preface This manual...

Pre-Installation ManualVitara Modelocked Ti:Sapphire Laser

5100 Patrick Henry DriveSanta Clara, CA 95054 USA

Vitara Pre-Installation Manual

This document is copyrighted with all rights reserved. Under copyrightlaws, this document may not be copied in whole or in part, or reproducedin any other media, without the express written permission of Coherent,Inc. (Coherent). Permitted copies must carry the same proprietary andcopyright notices as were affixed to the original. This exception does notallow copies—whether or not sold—to be made for others; however, all thematerial purchased may be sold, given, or loaned to another person.Under the law, “copying” includes translation into another language.

Coherent, the Coherent Logo, and the Vitara are registered trademarks ofCoherent, Inc. All other trademarks or registered trademarks are theproperty of their respective owners.

Patents referenced in this manual are active when the manual is printed(see last page for date). You are advised to check to see if the patents arestill active http://portal.uspto.gov/external/portal/pair.

Every effort has been made to ensure that the data given in this documentis accurate. The information, figures, tables, specifications, part numbers,and schematics contained herein are subject to change without notice.Coherent makes no warranty or representation, either expressed orimplied, with respect to this document. In no event will Coherent be liablefor any direct, indirect, special, incidental, or consequential damagesresulting from any defects in its documentation.

Technical Support

In the U.S.:

Should you experience any difficulties with your laser or need anytechnical information, please visit our Web site www.Coherent.com.Should you need further assistance, please contact Coherent TechnicalSupport via e-mail [email protected] or telephone,1-800-367-7890 (1-408-764-4557 outside the U.S.). Please be ready toprovide model and laser head serial number of your laser system as wellas the description of the problem and any corrective steps attempted to thesupport engineer responding to your request.

Telephone coverage is available Monday through Friday (except U.S.holidays and company shutdowns). Inquiries received outside normaloffice hours will be documented by our automatic answering system andwill be promptly returned the next business day.

Outside the U.S.:

If you are located outside the U.S., please visit www.Coherent.com fortechnical assistance, or phone our local Service Representative. ServiceRepresentative phone numbers and addresses can be found on theCoherent web site.

Coherent provides telephone and web-based technical assistance as aservice to its customers and assumes no liability thereby for any injury ordamage that may occur contemporaneous with such services. Under nocircumstances do these support services affect the terms of any warrantyagreement between Coherent and the buyer. Operation of any Coherentlaser with any of its interlocks defeated is always at the operator's own risk.

i - ii

http://www.Coherent.com






http://portal.uspto.gov/external/portal/pair

Table of Contents

TABLE OF CONTENTS

Preface ....................................................................................................................................vU.S. Export Control Laws Compliance ..................................................................................vSymbols Used in this Document and on the System ............................................................ vi

Section One: Safety......................................................................................................... 1-1Hazards ............................................................................................................................... 1-1

Optical Safety ............................................................................................................ 1-1Recommended Precautions and Guidelines...................................................... 1-2

Electrical Safety ......................................................................................................... 1-3Recommended Precautions and Guidelines...................................................... 1-3

Integrated Pump Lasers ...................................................................................................... 1-4Maximum Accessible Radiation Level............................................................................... 1-4Safety Features and Compliance with Government Requirements .................................... 1-4

Laser Classification.................................................................................................... 1-5Protective Housing..................................................................................................... 1-5Safety Interlocks ........................................................................................................ 1-5Remote Interlock Connector ...................................................................................... 1-5Key Control................................................................................................................ 1-5Laser Radiation Emission Indicators ......................................................................... 1-6Operating Controls..................................................................................................... 1-6Display Screen ........................................................................................................... 1-6Manual Reset Mechanism.......................................................................................... 1-6Location of Safety Labels .......................................................................................... 1-7

Electromagnetic Compatibility ........................................................................................... 1-7Waste Electrical and Electronic Equipment (WEEE, 2002) ............................................... 1-7Sources of Additional Information ................................................................................... 1-13

Laser Safety Standards............................................................................................. 1-13Equipment ................................................................................................................ 1-13

Section Two: Description and Specifications.................................................. 2-1Introduction......................................................................................................................... 2-1Vitara Laser Head ............................................................................................................... 2-2Verdi G-series Laser Head .................................................................................................. 2-2Vitara Controller ................................................................................................................. 2-2Specifications...................................................................................................................... 2-3

Section Three: Pre-Installation ............................................................................... 3-1Receiving and Inspection.................................................................................................... 3-1Utility and Environmental Requirements ........................................................................... 3-2System Dimensions and Weight ......................................................................................... 3-3External Interlock ............................................................................................................... 3-7Pre-Installation Checklist.................................................................................................... 3-8

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LIST OF FIGURES

1-1. Waste Electrical and Electronic Equipment Label........................................................... 1-71-2. Safety Label Locations on Front Bezel of Vitara............................................................. 1-81-3. Safety Label Location on Top Cover of Vitara ................................................................ 1-81-4. Safety Label Locations on Back Bezel of Vitara ............................................................. 1-91-5. Safety Label Locations on Power Supply........................................................................ 1-91-6. Safety Label Locations on the Vitara Controller ........................................................... 1-101-7. Safety Label Descriptions .............................................................................................. 1-102-1. Vitara Laser System ......................................................................................................... 2-12-2. Verdi G-Series Laser Head Optical Schematic. ............................................................... 2-33-1. Vitara Laser Head Dimensions (Top View) ..................................................................... 3-33-2. Vitara Laser Head Dimensions (Side View) .................................................................... 3-43-3. Vitara Laser Head Dimensions (Front View)................................................................... 3-43-4. Verdi-G Power Supply Dimensions ................................................................................. 3-53-5. Vitara Controller Dimensions .......................................................................................... 3-63-6. “Sub-D” Interlock Connector Pin Diagram. Pins 3,4,5,8, and 9 are

for factory use only. Do not connect these pins. ........................................................ 3-73-7. External Interlock Circuit ................................................................................................ 3-7

LIST OF TABLES

3-1. Utility Requirements........................................................................................................ 3-23-2. Environmental Requirements .......................................................................................... 3-23-3. Water Chiller Specifications ............................................................................................ 3-23-4. System Dimensions and Weight ...................................................................................... 3-33-5. Pre-installation Checklist ................................................................................................. 3-8

i - iv

Preface

Preface This manual contains pre-installation information for the Vitaralaser system. It is intended to help you prepare for your upcominginstallation visit and assure its success.

Read this Operator’s Manual carefully before operating thesystem for the first time. Special attention should be given to thematerial in Section One: Laser Safety.

Use of controls or adjustments or performance of proceduresother than those specified in this Operator’s Manual may resultin hazardous radiation exposure.

Use of the system in a manner other than that described hereinmay impair the protection provided by the system.

U.S. Export Control Laws Compliance

It is the policy of Coherent to comply strictly with U.S. exportcontrol laws.

Export and re-export of lasers manufactured by Coherent are subjectto U.S. Export Administration Regulations, which are administeredby the Commerce Department. In addition, shipments of certaincomponents are regulated by the State Department under the Inter-national Traffic in Arms Regulations.

The applicable restrictions vary depending on the specific productinvolved and its destination. In some cases, U.S. law requires thatU.S. Government approval be obtained prior to resale, export orre-export of certain articles. When there is uncertainty about theobligations imposed by U.S. law, clarification should be obtainedfrom Coherent or an appropriate U.S. Government agency.

i - v


Symbols Used in this Document and on the System

This symbol alerts the operator to the presence of importantoperating and maintenance instructions.

This symbol alerts the operator to the danger of exposure tohazardous visible and invisible laser radiation.

i - vi

Safety

SECTION ONE: SAFETY

This user information is in compliance with section 1040.10 ofthe CDRH Performance Standards for Laser Products from theHealth and Safety Act of 1968.

Use of controls or adjustments or performance of proceduresother than those specified herein may result in hazardousradiation exposure.

This laser safety section must be thoroughly reviewed prior to oper-ation of the Vitara laser system. Safety instructions presentedthroughout this manual must be followed carefully.

Hazards Hazards associated with lasers generally fall into the following cate-gories:

• Exposure to laser radiation that may damage the eyes or skin

• Electrical hazards generated in the laser power supply or asso-ciated circuits

• Chemical hazards resulting from contact of the laser beamwith volatile or flammable substances, or released as a resultof laser material processing

The above list is not intended to be exhaustive. Anyone operatingthe laser must consider the interaction of the laser system with itsspecific working environment to identify any potential hazards.

Optical Safety Laser light, because of its special qualities, poses safety hazards notassociated with light from conventional sources. The safe use oflasers requires all operators, and everyone near the laser system, tobe aware of the dangers involved. Users must be familiar with theinstrument and the properties of coherent, intense beams of light.

The safety precautions listed below are to be read and observed byanyone working with or near the laser. At all times, ensure that allpersonnel who operate, maintain or service the laser are protected

1 - 1


from accidental or unnecessary exposure to laser radiationexceeding the accessible emission limits listed in ‘PerformanceStandards for Laser Products,’ United States Code of FederalRegulations, 21CFR1040 10(d).

Direct eye contact with the output beam from the laser will causeserious damage and possible blindness.

The greatest concern when using a laser is eye safety. In addition tothe main beam, there are often smaller beams present at variousangles near the laser system. These beams are formed by specularreflections of the main beam at polished surfaces such as lenses orbeamsplitters. While weaker than the main beam, such beams maystill carry sufficient intensity to cause eye damage.

Laser beams are powerful enough to burn skin, clothing or painteven at some distance. They can ignite volatile substances such asalcohol, gasoline, ether and other solvents, and can damagelight-sensitive elements in video cameras, photomultipliers andphotodiodes. The user is advised to follow the precautions below.

Recommended Precautions and Guidelines

1. Observe all safety precautions in the pre-installation andOperator’s Manuals.

2. All personnel should wear laser safety glasses rated to protectagainst the specific wavelengths being generated. Protectiveeye wear vendors are listed in the Laser Focus World, Lasersand Optronics, and Photonics Spectra buyer’s guides. Consultthe ANSI, ACGIH, or OSHA standards listed at the end of thissection for guidance.

3. Avoid wearing watches, jewelry, or other objects that mayreflect or scatter the laser beam.

4. Stay aware of the laser beam path, particularly when externaloptics are used to steer the beam.

5. Provide enclosures for beam paths whenever possible.

6. Use appropriate energy-absorbing targets for beam blocking.

7. Block the beam before applying tools such as Allen wrenchesor ball drivers to external optics.

8. Limit access to the laser to qualified users who are familiarwith laser safety practices. When not in use, lasers should beshut down completely and/or made off-limits to unauthorizedpersonnel by removing the power supply key.

1 - 2

Safety

9. Use the laser in an enclosed room. Laser light may remaincollimated over long distances and therefore presents a poten-tial hazard if not confined. It is good practice to operate thelaser in a room with controlled access.

10. Post warning signs in the area of the laser beam that the laseris in use.

11. Exercise extreme caution when using solvents in the area ofthe laser.

12. Never look directly into the laser light source or at scatteredlaser light from any reflective surface. Never sight down thebeam.

13. Set up the laser so that the beam height is either well below orwell above eye level.

14. Avoid direct exposure to the laser light. Laser beams can easilycause flesh burns or ignite clothing.

15. Advise all those working with or near the laser of these precau-tions.

Laser safety glasses protect the user from eye damage byblocking light at the laser wavelengths. However, this alsoprevents the operator from seeing the beam. Use extremecaution even while wearing safety glasses.

Electrical Safety

Normal operation of the Vitara should not require access to thepower supply circuitry. Removing the power supply cover willexpose the user to potentially lethal electrical hazards. Contactan authorized service representative before attempting tocorrect any problem with the power supply.

Recommended Precautions and Guidelines

The following precautions must be observed by anyone workingwith potentially hazardous electrical circuitry:

1. Disconnect main power lines before working on any electricalequipment when it is not necessary for the equipment to beoperating.

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2. Do not short or ground the power supply output. Protectionagainst possible hazards requires proper connection of theground terminal on the power cable, and an adequate externalground. Check these connections at the time of installation,and periodically thereafter.

3. Never work on electrical equipment unless there is anotherperson nearby who is familiar with the operation and hazardsof the equipment, and who is competent to administer assis-tance.

4. When possible, keep one hand away from the equipment toreduce the danger of current flowing through the body if a livecircuit is accidentally touched.

5. Always use approved, insulated tools.

6. Special measurement techniques are required for this system.A technician who has a complete understanding of the systemoperation and associated electronics must select ground refer-ences.

Integrated Pump Lasers

Some versions of the Vitara system incorporate a CoherentVerdi-GTM laser as a subcomponent. The beam from this laser ishazardous. Refer to the Verdi-G Operator’s Manual for additionalsafety information.

Maximum Accessible Radiation Level

The Vitara and its component lasers produce visible and invisibleradiation over a wavelength range of 500 to 1100 nm, with amaximum of 10 Watts continuous wave power, and 25 nJ maximumenergy per < 200 fs pulse [CFR 1040.10 (h)(2)/ EN 60825-1/IEC 60825-1, Clause 6].

Safety Features and Compliance with Government Requirements

The following features are incorporated into the instrument toconform to several government requirements. The applicable UnitedStates Government requirements are contained in 21 CFR,Subchapter J, part 1040 administered by the Center for Devices andRadiological Health (CDRH). The European Community require-ments for product safety are specified in the Low Voltage Directive(LVD) (published in 73/23/EEC and amended in 93/68/EEC). TheLow Voltage Directive requires that lasers comply with the standardEN 61010-1/IEC 61010-1 “Safety Requirements For ElectricalEquipment For Measurement, Control and Laboratory Use” andEN 60825-1/IEC 60825-1 “Safety of Laser Products”. Complianceof this laser with the LVD requirements is certified by the CE mark.

1 - 4

Safety

Laser Classification

Governmental standards and requirements specify that the lasermust be classified according to the output power or energy and thelaser wavelength. The Vitara is classified as Class IV based on 21CFR, Subchapter J, part 1040, section 1040.10 (d). According to theEuropean Community standards, Vitara lasers are classified asClass 4 based on EN 60825-1/IEC 60825-1, clause 9. In thismanual, the classification will be referred to as Class 4.

Protective Housing The laser head is enclosed in a protective housing that preventshuman access to radiation in excess of the limits of Class I radiationas specified in the 21CFR, Part 1040 Section 1040.10 (f)(1) andTable 1-A/EN 60825-1/IEC 60825-1 clause 4.2 except for theoutput beam, which is Class 4.

Safety Interlocks The system incorporates multiple safety interlocks which activatewhen the cavity cover of the laser head or power supply is removed.An interlock fault initiation will terminate all lasing by activating ashutter mechanism as well as removing power from the infrareddiodes in the power supply. While installed, the interlock defeats aredirectly visible by anyone near the laser. It is not possible to replacethe cavity cover while the interlocks are installed. Note that theexternal laser cover is not interlocked and may be removed orre-installed at anytime.

The laser interlocks should be defeated only for the purpose of main-tenance and service by trained personnel. Extreme caution mustalways be observed when operating the laser with its coversremoved [CFR 1040.10 (f)(2)/ EN 60825-1/IEC 60825-1,Clause 4.3].

Remote Interlock Connector

The Vitara laser system is equipped with an external interlockconnector on the rear panel of the power supply. The terminals ofthis connector must be electrically joined for the laser to operate[CFR 1040.10 (f)(3)/ EN 60825-1/IEC 60825-1, Clause 4.4].

Key Control Operation of the Vitara requires that the power supply key switch bein the ON position. The key is removable and the system cannot beoperated when the key is removed [CFR 1040.10 (f)(4)/EN 60825-1/IEC 60825-1, Clause 4.5].

1 - 5


Laser Radiation Emission Indicators

The LASER ON indicators on both the power supply and the laserhead illuminate a few seconds after power is applied to the pumppower supply. The indicators are visible without exposing the oper-ator to laser emission. Amber or white light are used which arevisible while wearing the proper type of safety glasses [CFR1040.10(f)(5)/EN 60825-1/IEC 60825-1, clause 4.6].

Operating Controls

The laser controls are positioned so that the operator is not exposedto laser emission while manipulating the controls [CFR1040.10(f)(7)/EN 60825-1/IEC 60825-1, clause 4.8].

Display Screen The display screen on the front panel of the pump laser power supplymay be viewed without exposing the operator to laser emission[CFR 1040.10(f)(8)/EN 60825-1/IEC 60825-1, clause 4.9].

Manual Reset Mechanism

Following an interlock fault or unexpected loss of electrical power,laser operation is resumed keying the power supply off and then on.[CFR 1040.10(f)(10)/EN 60825-1/IEC 60825-1, clause 4.11].

Use of controls or adjustments or performance of proceduresother than those specified in the manual may result in hazardousradiation exposure.

Use of the system in a manner other than that described hereinmay impair the protection provided by the system.

1 - 6

Safety

Location of Safety Labels

Refer to Figure 1-2 through Figure 1-5 for the location of all safetylabels. These include warning labels indicating removable or trans-portable protective housings, apertures through which laser radia-tion is emitted, and labels of certification and identification [CFR1040.10(g), CFR 1040.2, and CFR 1010.3/EN 60825-1/IEC 60825-1, Clause 5].

Electromagnetic Compatibility

The European requirements for Electromagnetic Compliance(EMC) are specified in the EMC Directive (published in89/336/EEC).

Conformance to the EMC requirements is achieved through compli-ance with the harmonized standards EN55011 (1991) for emissionand ENC50082-1 (1992) for immunity.

The laser meets the emission requirements for Class B, group 1 asspecified in EN55011 (1991).

Compliance of this laser with the EMC requirements is certified bythe CE mark.

Waste Electrical and Electronic Equipment (WEEE, 2002)

The European Waste Electrical and Electronic Equipment (WEEE)Directive (2002/96/EC) is represented by a crossed-out garbagecontainer label (see Figure 1-1). The purpose of this directive is tominimize the disposal of WEEE as unsorted municipal waste and tofacilitate its separate collection.

Figure 1-1. Waste Electrical and Electronic Equipment Label

1 - 7


Figure 1-2. Safety Label Locations on Front Bezel of Vitara

Figure 1-3. Safety Label Location on Top Cover of Vitara

AVOID EXPOSUREVISIBLE AND INVISIBLE LASER RADIATION

IS EMITTED FROM THIS APERTURE

1

VISIBLE AND/OR INVISIBLELASER RADIATION WHEN

OPEN AND INTERLOCKDEFEATED!

AVOID EYE OR SKINEXPOSURE TO DIRECT

OR SCATTERED RADIATION.CLASS IV LASER PRODUCT

808-5275





808-5275

LASER ON

2

3

1 - 8

Safety

Figure 1-4. Safety Label Locations on Back Bezel of Vitara

Figure 1-5. Safety Label Locations on Power Supply

THIS PRODUCT COMPLIES WITHCDRH PERFORMANCE STANDARDS,

21 CFR SUBCHAPTER J EXCEPTFOR DEVIATIONS PURSUANT TO

LASER NOTICE NO. 50,DATED JULY 26, 2001.

M/N

S/N

MFD

5100 PATRICK HENRY DRSANTA CLARA, CA 95054

INVISIBLE AND VISIBLE LASERRADIATION. AVOID EYE OR

SKIN EXPOSURE TO DIRECTOR SCATTERED RADIATION.CLASS 4 LASER PRODUCTPER IEC/EN 60825-1 (2007)

MODE-LOCKED LASER500-100nm, < 25nJ PER

< 200fs PULSE, < 4W CW

< 25W CW AT 532nm





808-5275





808-5275

4

5

7

9

2

10

8

6

9

7 1110

1 - 9


Figure 1-6. Safety Label Locations on the Vitara Controller

1. Avoid Exposure to Laser Beam Emitted from Aperture

2. Exposure to Laser Radiation When Interlock Defeated

LASER

EMISSION

3. Laser Emission (Silk Screen) for System Emission LED

Figure 1-7. Safety Label Descriptions




M/N

S/N

MFD


100-240 ~50/60 Hz

0.5A, 250V1.0A, 125V

9

4

10

7

12

AVOID EXPOSUREVISIBLE AND INVISIBLE LASER RADIATION

IS EMITTED FROM THIS APERTURE





808-5275

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Safety

4. Serial Number Identification (Laser Head & Vitara Controller)

5. System Power, Bandwidth and Pulse Width Identification (Laser Head)

6. WEEE (Waste Electrical and Electronic Equipment) Silk Screen or Sticker

7. Caution Mark





M/N

S/N

MFD


INVISIBLE AND VISIBLE LASERRADIATION. AVOID EYE OR

SKIN EXPOSURE TO DIRECTOR SCATTERED RADIATION.CLASS 4 LASER PRODUCTPER IEC/EN 60825-1 (2007)

MODE-LOCKED LASER500-100nm, < 25nJ PER

< 200fs PULSE, < 4W CW

< 25W CW AT 532nm

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8. Serial Number Identification (Power Supply)

9. China RoHs

10. CE Certification (silk screen or sticker)

11. Voltage Rating Verdi G-Series Power Supply (Silk Screen)

12. Voltage Rating (Vitara controller)


��

��

100-240 ~50/60 Hz

0.5A, 250V1.0A, 125V

1 - 12

Safety

Sources of Additional Information

The following are sources for additional information on laser safetystandards and safety equipment and training.

Laser Safety Standards

Equipment

Safe Use of Lasers (Z136.1)American National StandardsInstitute (ANSI)1430 BroadwayNew York, NY 10018Tel: (212) 354-3300

Occupational Safety and HealthAdministration (OSHA)U.S. Department of Labor200 Constitution Avenue N.W.Washington, DC 20210

A Guide for Control of Laser HazardsAmerican Conference of Governmentaland Industrial Hygienists (ACGIH)6500 Glenway Avenue, Bldg. D-7Cincinnati, OH 45211Tel: (513) 661-7881

Laser Safety GuideLaser Institute of America12424 Research Parkway, Suite 130Orlando, FL 32826Tel: (407) 380-1553

Laser Focus Buyer’s GuideLaser Focus WorldOne Technology Park DriveP.O. Box 989Westford, MA 01886-9938Tel: (508) 692-0700

Photonics Spectra Buyer’s GuidePhotonics SpectraBerkshire CommonPittsfield, MA 01202-4949Tel: (413) 499-0514

Lasers and Optronics Buyer’s GuideLasers and Optronics301 Gibraltar Dr.P.O. Box 650Morris Plains, NJ 07950-0650Tel: (210) 292-5100

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1 - 14

Description and Specifications

SECTION TWO: DESCRIPTION AND SPECIFICATIONS

Introduction The Vitara is a Titanium:Sapphire laser oscillator system capable ofproducing modelocked pulses with bandwidths exceeding 125 nm.Excellent power stability is achieved by integrating the provenCoherent Verdi G-series™ pump laser, PowerTrack™ beam steeringtechnology, and a compact cavity design into a single laser head.Bandwidth and center wavelength are conveniently adjustedthrough the proprietary control software provided with the system.

The primary components are the laser head, power supply and Vitaracontroller as shown in Figure 1-1. Also included is a stand-aloneclosed-loop water chiller to provide thermal stability for the entiresystem.

Figure 2-1. Vitara Laser System

2 - 1


Vitara Laser Head

A key feature of the Vitara laser system is the incorporation of theVerdi G-series pump laser into one box with the oscillator cavity.Advantages of this design include a smaller overall footprint, verylow optical noise and increased thermal and mechanical stability.

Optimal alignment of the pump beam into the oscillator cavity ismaintained by the PowerTrack beam steering system. A feedbackloop controls the orientation of the first pump steering optic whilemonitoring the Vitara output power level. PowerTrack greatlyreduces system warm-up time to less than one minute and providesexcellent long term stability and hands-free operation.

The oscillator itself employs Kerr lens modelocking in combinationwith an intracavity prism pair to generate low-noise, large-band-width, and high-peak power ultrafast pulses. The prisms are adjust-able along with a slit assembly to provide tunability of the band-width and center wavelength. Precise control of the spatial modeprofile allows stable operation at bandwidths in excess of 125 nmwhile maintaining high-quality mode. The cavity also features auto-mated modelocking initiation by means of a solenoid-drivenmovable mirror mount.

Verdi G-series Laser Head

Based on optically pumped semiconductor laser (OPSL) technology,the Verdi G-series is a robust multiwatt-level continuous-wave, lownoise and high performance pump laser. The compact cavity designemploys intracavity second harmonic generation to produce green(532 nm) visible light output, key for ultrafast Ti:Sapphire pumping(refer to Figure 2-2). OPSL technology offers many advantagesinherited from its monolithic semiconductor chip used to producelaser light. Unprecedented flexibility in terms of variable outputpower with no effect on beam quality or beam pointing andextremely low noise are characteristics of OPSL lasers. In addition,the short upper-state lifetime of the OPS chip removes the “greennoise” problem as seen in diode pumped solid-state (DPSS) lasers.Verdi G-Series lasers are available as single or multi-transversemode.

Constructed within a cleanroom environment, the resonator opticsare installed using Coherent’s exclusive PermAlign™ manufac-turing process, resulting in a permanently aligned resonator struc-ture that is extremely stable.

Vitara Controller The Vitara controller includes the necessary electronics to controlseveral laser head sub-systems and serves as the interface betweenthe laser head and control computer.

2 - 2

Description and Specifications

The Vitara controller manages all onboard controls and diagnosticsfeatures of the laser such as PowerTrack, systems to control band-width and center wavelength and to monitor and initiate mode-locking.

Specifications The Customer Data Sheet shipped with each Vitara provides adetailed description of system performance. Specifications for allother laser parameters can be found at www.coherent.com.

Figure 2-2. Verdi G-Series Laser Head Optical Schematic.

Hea

tsin

k

Pump Diode

Pump DeliveryOptics

OPS Chip

LBO

Optical Cavity

OutputBeam

OutputCoupler

2 - 3


2 - 4

Pre-Installation

SECTION THREE: PRE-INSTALLATION

Receiving and Inspection

Inspect shipping containers for signs of rough handling or damage.Indicate any such signs on the bill of lading. Report any damageimmediately to the shipping carrier and to the Coherent OrderAdministration Department (800-438-6323) or authorized represen-tative.

Retain shipping containers. The containers will be required ifthe system is returned to the factory for service. The containersmay also be needed to support a shipping damage claim.

The following items are included with a standard Vitara lasersystem:

1. Laser head

2. Pump Laser power supply

3. Vitara controller

4. Laptop computer and software

5. System accessory package

6. Water chiller (Thermotek Model T-255P or equivalent)

7. Vitara ship kit

8. Operator’s manual

Initial installation must be performed by an authorizedCoherent personnel. Do not remove the system from its shippingcontainers.

The Vitara is a sealed cavity, hands-free laser system. Coherentprohibits users from breaking or removing the warranty seals.Doing so will void the warranty as stated in the warranty sectionof this manual.

3 - 1


Utility and Environmental Requirements

The following tables provide pertinent information concerning theinstallation of the Vitara.

Table 3-1. Utility Requirements

PARAMETER REQUIREMENT MAX. POWER CONSUMPTION

Verdi G-Series Power Supply 100 to 240 VAC 750 VA

Vitara Controller 90 to 250 VAC 110 VA

Water Chiller 90 to 250 VAC 825 VA

Line Frequency 47 to 63 Hz -

Note: All specifications and requirements are subject to change without notice.

Table 3-2. Environmental Requirements

PARAMETER REQUIREMENT

Ambient Temperature 15 to 30 °C (59 to 86 °F)

Relative Humidity 5 to 95% non-condensing

Altitude Sea level to 3000 m (10,000 ft)

Table 3-3. Water Chiller Specifications

PARAMETER REQUIREMENT

Flow Rate1.0 to 1.5 liters/minute (0.2 to 0.4gallons/minute)

Maximum Pressure 200 kPa (30 psi)

Operating Water Temperature 20 oC (69 °F)

3 - 2

Pre-Installation

System Dimensions and Weight

Table 3-4. System Dimensions and Weight

LASER HEADPUMP POWER

SUPPLY

VITARA CONTROLLER

CHILLER

Length 61 cm (24 in) 36.1 cm (14.2 in) 36.3 cm (14.3 in) 27.7 cm (10.9 in)

Width 42.8 cm (16.8 in) 22.9 cm (9.0 in) 23.4 cm (9.2 in) 20.3 cm (8.0 in)

Height 16.3 cm (6.4 in) 16.0 cm (6.3 in) 13.7 cm (5.4 in) 38.6 cm (15.2 in)

Weight 63 kg (140 lbs) 6 kg (13.2 lbs) 3.4 kg (7.5 lbs) 8.8 kg (19.4 lbs)

Figure 3-1. Vitara Laser Head Dimensions (Top View)

427.516.83

609.624.00

3 - 3


Figure 3-2. Vitara Laser Head Dimensions (Side View)

Figure 3-3. Vitara Laser Head Dimensions (Front View)

162.46.39

120.654.75

255.610.06

168.76.64

3 - 4

Pre-Installation

Figure 3-4. Verdi-G Power Supply Dimensions

3 - 5


Figure 3-5. Vitara Controller Dimensions

9.20

5.36 5.00

14.30

3 - 6

Pre-Installation

External Interlock

An interlock connector is located on the pump laser power supplyrear panel. If the interlock is open, laser emission will terminate, andthe SYSTEM FAULT LED (red) will illuminate. The system shipswith an interlock defeat which is installed to close the interlock loop.

Alternatively, if you want to incorporate an external safety interlockcircuit into the laser system, follow the instructions given below.Figure 3-6 displays the pin diagram for the interlock connector. Theinterlock defeat shorts pins 1 and 2 as well as pins 6 and 7.

Install the external switch between pins 1 and 2 of the connector,and install a short between pins 6 and 7. Figure 3-7 shows a wiringdiagram for the switch. The switch must have its contacts closedwhen it is safe to operate the laser and open when it is not safe. Theswitch is shown in the open position, which is the condition wherethe laser will not operate.

Figure 3-6. “Sub-D” Interlock Connector Pin Diagram. Pins 3,4,5,8, and 9 are for factory use only. Do not connect these pins.

16

7

8

9

2

3

4

5

EnableINTLK

Figure 3-7. External Interlock Circuit

1 2S1P1-1

P1-2

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Do not make any electrical contact with pins 3,4,5,8 or 9. Theseare for factory use only. Improper use of these pins can causepermanent failure of the system.

Pre-Installation Checklist

In order to perform a smooth integration of the your new lasersystem into your facility, it is necessary to prepare in advance. Apre-installation checklist outlining the general requirements isprovided below.

Table 3-5. Pre-installation Checklist

ACTIVITY AND EQUIPMENT

GENERAL REQUIREMENTS REFERENCE(S)

Laser Environment

[ ] Temperature and humidity in specification.

[ ] Laser area layout planned according to system dimensions.

See “Utility and Envi-ronmental Require-ments” on page 3-2.

Receive and Inspect

[ ] Area is clean and large enough to uncrate the laser and chiller.See “Receiving and Inspection” on page 3-1

UtilityRequirements

[ ] Utility outlets (115V/20A, typical) available nearby installation area.

[ ] (x1) 100 to 240VAC outlet available for Vitara Power Supply.

[ ] (x1) 90 to 250VAC outlet available for Vitara controller.

[ ] (x1) 90 to 250VAC outlet available for water chiller.

[ ] (x1) 90 to 250VAC outlet available for laptop computer.

[ ] (x1) 90 to 250VAC outlet available for Synchro-lock AP (if purchased with system).

[ ] (x4) extra outlets available for instrumentation (e.g., power meter, oscilloscope, ...).

See “Utility and Envi-ronmental require-ments” on page 3-2

System Chiller [ ] Distilled water available on-site (~2 liters).

Laser Safety

[ ] Laser Safety Officer (LSO) identified (recommended).

[ ] Laser Safety Training completed.

[ ] Laser controlled area established.

[ ] Personal protective equipment (Laser safety eyewear) available.

[ ] External interlock system in place (optional)

See the “Laser Safety” section and ‘External interlock” on page 3-7

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Pre-Installation

Cleaning Material

[ ] Fresh spectroscopic / spectrophotometric-grade or electronic grade methanol and acetone available.

[ ] Hemostat[ ] Lens Tissues[ ] Powderless latex or nitrile gloves

Laser Equipment

[ ] Power meter and head (e.g., Coherent FieldMate with LM10, LM2 heads).

[ ] Intensity calibrated spectrometer (e.g., StellarNet Blue-wave NIR2-14).

[ ] A beamsplitter to send part of the beam to the spectrometer.

Table 3-5. Pre-installation Checklist

ACTIVITY AND EQUIPMENT

GENERAL REQUIREMENTS REFERENCE(S)

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