Optical & Vacuum Equipment Layouts
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20 Nov 2008 G0810007-v2 1
Optical & Vacuum EquipmentLayouts
Dennis CoyneMike SmithLuke Williams20 Nov 2008Adv. LIGO Team Meeting, Caltech, Pasadena, CA
20 Nov 2008 G0810007-v2 2
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
20 Nov 2008 G0810007-v2 3
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
20 Nov 2008 G0810007-v2 4
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
20 Nov 2008 G0810007-v2 5
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)
20 Nov 2008 G0810007-v2 6
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
20 Nov 2008 G0810007-v2 8
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.
20 Nov 2008 G0810007-v2 9
Input Optics Section
HAM1(ISC Readout Chamber)
HAM2 HAM3
Vacuum Septum Plate
New Larger DiameterInput Manifold
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