20 Nov 2008 G0810007-v2 1

Optical & Vacuum EquipmentLayouts

Dennis CoyneMike SmithLuke Williams20 Nov 2008Adv. LIGO Team Meeting, Caltech, Pasadena, CA

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Methodology ZEMAX and SolidWorks are key tools SolidWorks models are stored in the Adv. LIGO

Project PDMWorks vault Import/export : manual or automated

SOLIDWORKSOPTOMECHANICAL

ENVELOPELAYOUT

ZEMAXOPTICALLAYOUT

OPTICALLAYOUT

CONSTRAINTS& REQUIREMENTS

SOLIDWORKSOPTOMECHANICAL

DETAILLAYOUT

SUBSYSTEMASSEMBLIES

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Known

All cavity lengths All COC and IO cavity optic positions

For each individual interferometer, H1, H2, L1 All COC and IO wedge angles, orientations and

tolerances Beam dump & baffle locations

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References/Sources Zemax models SolidWorks Assemblies in the PDM Works vault:

D08xxxx_aligo_io_aos_nonfolded_layout.SLDASM D08xxxx_aligo_io_aos_folded_layout.SLDASM

References (available from the Systems wiki): Optical Layout for Advanced LIGO, T010076-02

Defines constraints, payload element properties and rationale Will be revised for the Systems FDR (before Apr-2009)

Optic Coordinates and Cavity Lengths (for Stable Recycling Cavities), T080078-05 The definitive source – has tables with parameters & images of table layouts

Recycling Cavity Mirror Normal Vectors for H1, H2, and L1 (for Stable Recycling Cavities), T080258-00

BS, CP, and ITM Wedge Angle Tolerance, T080277-02 COC Polishing Specifications Spreadsheet

To be a Table in the COC Final Design Report, E080494 The most convenient reference for COC & RC optic parameters

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Unknown or TBD

Optical lever beam layouts TCS CO2 beam paths are preliminary TCS Hartmann paths are preliminary ISC Table layouts are preliminary (HAM1/7 & HAM6/12)

… and not yet integrated into the overall layout PSL/IO Table layouts are preliminary?

… and not yet integrated into the overall layout (not necessary?) H2

Layout in HAM8 is preliminary & tight – may require a move of the chamber

Independent check of Zemax The PDMWorks vault is a mess!

Needs a lot of clean up for rational layout completion Need a systematic and practical approach for layout at the full

interferometer scale and at the local chamber detail scale Revised Payload Mass Properties (E040136-00)

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Vacuum Equipment (VE)Rearrangement for LHO

NEW INPUT/OUTPUT MANIFOLD TUBES(4 PLACES)

MOVE THE MID STATION H2 BSC CHAMBERS TO THE END STATIONS

(2 PLACES)

POSSIBLY LONGER H2 INPUTMANIFOLD TUBE TO RELEIVEHAM8 PAYLOAD CONJESTION

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Zemax layout examples (from T080078-05)

HAM1 HAM3

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Vertex Layout ITMy (BSC1) and BS (BSC2) chambers not shown

HAM3

HAM4

BSC3

ITMy

BS

N.B.: Outriggers for the BS will be skewed from positions shown to fit to optics table.

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Input Optics Section

HAM1(ISC Readout Chamber)

HAM2 HAM3

Vacuum Septum Plate

New Larger DiameterInput Manifold

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PR3

PRM

MC1

MC2

FI

HAM2

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HAM3

MC2

PR2

FROM BS

TOPR3

N.B.: Baffles are not shown.

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H1/H2 End Station

New Vacuum Spools

BSC-ISI Seismic Assembly, Stage-0 “ring”

Support Tubes

Arm Cavity BaffleEnvelope

ITMx, H2Envelope

ETM TransmissionTelescope Envelope