Future of Spectroscopy and Imaging System

We provide high-performance tunable diode lasers,

which open up new era of spectroscopy and imaging.

Advanced Tunable Diode Laser

Spectra Quest Lab, Inc.

Spectra Quest Lab was founded in 2013,

Chiba-University Inohana Innovation Plaza,

based on the heritage of JST Sentan Project

“High Power and Widely Tunable Diode laser”.

Our products are based on “patented design

of laser cavity” and “high-power gain chips”,

which were specially developed for tunable

diode laser by OPTOENERGY, Inc.

Inohana-Innovation-Plaza, Chiba, JAPAN

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0

Inte

nsity [

dB

m]

110010801060104010201000980960

Wavelength [nm]

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0In

tensity [

dB

m]

110010801060104010201000980960

Wavelength [nm]

Mirror

Lens

Grating

Laser Diode

Pivot Point

)sin(sin d

OutputMirror

Lens

Grating

Laser Diode

Pivot Point

)sin(sin d

Output

Littman Configuration

Pivot Point

Grating

Half Mirror

Laser Diode

Lens

ASE-Free

Output

Pivot Point

Grating

Half Mirror

Laser Diode

Lens

ASE-Free

Output

Transposed Littman Configuration

Amplified Spontaneous Emission ASE-Free Output

Flared Taper Amplifier Angled Narrow Taper Amplifier

W=~100mm

High-Power & Wide-Band SOA Chip

800

700

600

500

400

300

200

100

0

Ou

tpu

t P

ow

er [

mW

]

11001090108010701060105010401030102010101000990

Wavelength [nm]

Free Space Output

PM-Fiber Coupled Output

I = 2.0 AI = 2A

PM Fiber Output

Free Space Output

Wavelength [nm]

W=~10mm

❏ High Spectral Purity： 80dB@ 0.01nm

❏ High Output Power： 100 mW (Free Space)

50 mW ( PM Fiber )

❏ Wide Band Tuning ： > 100 nm

980～1090nm, 920～1000nm

❏ Mode-Hop-Free Tuning： > 50 nm

❏ Narrow Linewidth : < 100 kHz (10ms)

❏ High Res. Digital Control： 0.1 pm

❏ High Speed Tuning ： 30 nm / s

❏ Built-in Data Acquisition： 16bit- 2ch.

1 mm Band, ASE-Free Tunable Diode Laser

1 mm Band, ASE-Free Tunable Diode Laser

❏ High Spectral Purity： 80dB@ 0.01nm

❏ High Output Power： 100 mW (Free Space)

50 mW ( PM Fiber )

❏ Wide Band Tuning ： > 100 nm

980～1090nm, 920～1000nm

❏ Mode-Hop-Free Tuning： > 50 nm

❏ Narrow Linewidth : < 100 kHz (10ms)

❏ High Res. Digital Control： 0.1 pm

❏ High Speed Tuning ： 30 nm / s

❏ Built-in Data Acquisition： 16bit- 2ch.

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Spe

ctra

l In

tens

ity

[dB

m]

10801060104010201000980

Wavelength [nm]

AQ6317: Res.=0.01nm

160

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0

Out

put

Pow

er [

mW

]

10801060104010201000980960

Wavelength [nm]

λ-Master 1040Air Space Output

Fiber Output without D.C.

with Dispersion Compensation

Wavelength Stabilized Diode LaserCompact & low-cost tunable diode laser with PZT & Manual Tuning.ASE-Free and Mode-Hop-Free Operation are realized at any wavelength.

❐ ASE-Free Output： Free Space : 100 mW,

Fiber Output : 50 mW

❐ Manual Tuning Range： 980 ～ 1080 nm,

920 ～ 990 nm

❐ Mode Hop Free Tuning by PZT： 0.5 nm

❐ Laser Linewidth： < 100 kHz (10 μs）

❐ Build-in Isolator and Fiber Port（Optional）

❐ Frequency Lock by Invar Etalon（Optional）

Wavelength Stabilized Diode LaserCompact & low-cost tunable diode laser with PZT & Manual Tuning.ASE-Free and Mode-Hop-Free Operation are realized at any wavelength.

❐ ASE-Free Output： Free Space : 100 mW,

Fiber Output : 50 mW

❐ Manual Tuning Range： 980 ～ 1080 nm,

920 ～ 990 nm

❐ Mode Hop Free Tuning by PZT： 0.5 nm

❐ Laser Linewidth： < 100 kHz (10 μs）

❐ Build-in Isolator and Fiber Port（Optional）

❐ Frequency Lock by Invar Etalon（Optional）

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10

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Air

Ou

tpu

t (d

Bm

)

1072.41072.01071.61071.21070.8

Wavelength (nm)

Res: 0.02 nm, AQ6370C - YOKOGAWA

PZT Voltage

0 V

75 V

150 V

❏ Wide Gain Band：980～1085nm,

920～1010nm

❏ High Power：1 W (Free Space)

600 mW ( Fiber Output)

❏ Polarization Ratio： >100 / 1

❏ Excellent Beam Quality：M2～ 1.1

❏ Fiber Coupling：>50% over Gain Band

❏ APC Control： against Time & λ-Sweep

❏ External Modulation： 0 ～ 20 kHz

1 W-100 nm High-Power & Wide-Band SOA

Combined with λ-Master Series

❏ Wide Gain Band：980～1085nm,

920～1010nm

❏ High Power：1 W (Free Space)

600 mW ( Fiber Output)

❏ Polarization Ratio： >100 / 1

❏ Excellent Beam Quality：M2～ 1.1

❏ Fiber Coupling：>50% over Gain Band

❏ APC Control： against Time & λ-Sweep

❏ External Modulation： 0 ～ 20 kHz

1 W-100 nm High-Power & Wide-Band SOA

Combined with λ-Master Series

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Int

ensi

ty [

a.u.

]

10801060104010201000

Wavelength [nm]

Output Spectra of λ Amp for 25C-2.5A seeded by λ Master I

1010nm 1020nm 1030nm 1040nm 1050nm 1060nm 1070nm 1080nm

10um RA2

800

600

400

200

0

Ou

tpu

t P

ow

er [

mW

]

110010801060104010201000

Wavelength [nm]

Free Space Output

PM-Fiber Output

without Auto Focus

❏ 1ns Fourier Limit Pulse： SW: 250MHz

50ps Pulse Sharper : Option

❏ Pulse on demand：up to 250MHz

Int./Ext. Trigger

Build-in Delay Unit : 10ns with 10ps res.

❏ High Peak Power：Max. 1.5 W (Fiber Out)

PM Fiber-In, PM Fiber Out

❏ High Polarization Ratio： >30dB

❏ Wide Gain Band：980～1085nm,

920～1010nm

❏ Very High Extinction Ratio： >70dB@1MHz

Suitable for Fiber Amp Seeding

1 ns-Pulse Semiconductor Optical Amplifier Combined with λ-Master or λ-Lock

❏ 1ns Fourier Limit Pulse： SW: 250MHz

50ps Pulse Sharper : Option

❏ Pulse on demand：up to 250MHz

Int./Ext. Trigger

Build-in Delay Unit : 10ns with 10ps res.

❏ High Peak Power：Max. 1.5 W (Fiber Out)

PM Fiber-In, PM Fiber Out

❏ High Polarization Ratio： >30dB

❏ Wide Gain Band：980～1085nm,

920～1010nm

❏ Very High Extinction Ratio： >70dB@1MHz

Suitable for Fiber Amp Seeding

1 ns-Pulse Semiconductor Optical Amplifier Combined with λ-Master or λ-Lock

0.25

0.20

0.15

0.10

0.05

0.00

Vo

ltag

e (

V)

201612840

time (nsec)

1 nsec - 120 MHz

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0

Ou

tpu

t (d

B)

10801060104010201000

Wavelength (nm)

❏ Wide Tuning Range : 455～ 550nm

24 Elements PPMgSLT Device

Automatic Selection of Device

❏ Mode Hop Free Tuning Range : 4nm

Synchronized Scan of T and λ

User Friendly Computer Control

❏ SHG Power : ~ 5mW

❏ High Spectral Purity： >80dB

❏ Narrow Linewidth： <200kHz (10ms)

❏ High Res. Digital Control： 0.1pm

Second Harmonic Conversion Unit

When used with λ-Master and λ-Amp

24 Elements PPMgSLT Device

SHG Unit

❏ Wide Tuning Range : 455～ 550nm

24 Periods PPMgSLT Device

Automatic Selection of Device

❏ Mode Hop Free Tuning Range : 4nm

Synchronized Scan of T and λ

User Friendly Computer Control

❏ SHG Power : ~ 5mW

❏ High Spectral Purity： >80dB

❏ Narrow Linewidth： <200kHz (10ms)

❏ High Res. Digital Control： 0.1pm

Second Harmonic Conversion Unit

When used with λ-Master and λ-Amp

540

530

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510

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Wav

ele

ngt

h (

nm

)

12011010090807060504030

Temperature (degC)

1.0

0.8

0.6

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0.0

Tra

nsm

issio

n

528.5528.0527.5527.0526.5526.0525.5525.0

Wavelength (nm)

Phase Matching of Devices

Absorption lines of iodine gas

Tunable Coherent Terahertz Light Source

❐ High-Power by UTC-PD

• Max. 1 μW

❐ Wide Band Freq. Tuning

• 0.3 ~ 4.5 THz

❐ Rapid, High Res. Tuning

• Max 4 THz/sec Sweep

• Digital Res. : 3 MHz

❐ High Spectral Purity

• Dynamic Range: > 50dB

❐ Narrow Linewidth

• 100 kHz (10 μsec )

❐ Zero Freq. Calibration

❐ Freq. Calib. by Etalon

This system utilizes UTC-PD (NTT-EL)as a Terahertz mixer.λ-Master 1040 and λ-Lock 1040 areused as mixing light sources.

Tunable Coherent Terahertz Light Source

❐ High-Power by UTC-PD

• Max. 1 μW

❐ Wide Band Freq. Tuning

• 0.3 ~ 4.5 THz

❐ Rapid, High Res. Tuning

• Max 4 THz/sec Sweep

• Digital Res. : 3 MHz

❐ High Spectral Purity

• Dynamic Range: > 50dB

❐ Narrow Linewidth

• 100 kHz (10 μsec )

❐ Zero Freq. Calibration

❐ Freq. Calib. by Etalon

10-6

10-5

10-4

10-3

10-2

10-1

100

Det

ecte

d P

ow

er (m

W)

5.04.03.02.01.00.0

Frequency (THz)

10-6

10-5

10-4

10-3

10-2

Det

ecte

d P

ow

er (m

W)

1.161.141.121.101.08

Frequency (THz)

Frequency Dependence of Emitted Terahertz Power

Expanded Chart of Water-Vapor Lines

Tunable Pico-Second Pulse Synthesizer

-Master 1040980 ~ 1090nm

RF Oscillator10GHz

GVD PulseCompressor

CW 40mW 10mW Pav =1W 3ps -1GHz, ~100W peak

LN Phase Modulator

LN Amplitude Modulator

-Amp 1040980 ~1090nm

Present status

Now we are developing tunable pico-second laser by pulse carving technology, based on our semiconductorbased laser technologies.

Thank you for your attention !

We are challenging toward the innovation of spectroscopy.

If you have any possible co-operative item with us,

please contact us through our website.

http://spectraquestlab.com

info@spectraquestlab.com