July 2324 2020 The STS as reference source Stéphane LagardeDenis Mourard Coalignment Procedure How to coalign and cophase SPICAVIS with CHARA CHARA Reference Source not usable Necessary use of the STS ID: 1039747
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1. SPICA-VIS Design Review, July 23-24, 2020The STS as reference sourceStéphane Lagarde/Denis MourardCo-alignment ProcedureHow to co-align and co-phase SPICA_VIS with CHARA?CHARA Reference Source not usable → Necessary use of the STS SPICA_VISSpectrographSPICA_VISBefore Fiber UnitsSPICA_VISFeeding OpticsVISIBLE TABLECHARA Reference SourcesIR TABLE 2CLIMB CLASSIC…IR TABLE 1MIRC, SPICA-FT…METROLOGYTABLEVISIBLE TABLEIRVISBEAM COMBINATION LABORATORYSTS Sources DirectionCHARA Reference Source DirectionSTS
2. SPICA-VIS Design Review, July 23-24, 2020The SPICA adjustment modulesStéphane Lagarde/Denis MourardCo-alignment ProcedureANGULAR ADJUSTEMENT MODULES SFO-IMG (Image Adjustment)SFO-FOP (Feeding Optics)ADC (Atmospheric Dispersion Compensator)CHARA VISIBLE TABLEPDC (Polarization Delay Compensator)BFO-RFL BFO-BSP BCS-FOMBCS-BCCBCS-PISBCS-BCD BAS-COLSHUBAS-FOCBAS-TTT (Tip/Tilt Tracker)BAS-PUP (Pupil Adjustment)SFU-SDL (SPICA Delay Lines)Specification: Accuracy < 10as
3. SPICA-VIS Design Review, July 23-24, 2020The SPICA adjustment modulesStéphane Lagarde/Denis MourardCo-alignment ProcedureLATERAL ADJUSTEMENT MODULES SFO-IMG (Image Adjustment)SFO-FOP (Feeding Optics)ADC (Atmospheric Dispersion Compensator)CHARA VISIBLE TABLEPDC (Polarization Delay Compensator)BFO-RFL BFO-BSP BCS-FOMBCS-BCCBCS-PISBCS-BCD BAS-COLSHUBAS-FOCBAS-TTT (Tip/Tilt Tracker)BAS-PUP (Pupil Adjustment)SFU-SDL (SPICA Delay Lines)Specification: Accuracy < 1mm
4. SPICA-VIS Design Review, July 23-24, 2020The SPICA adjustment modulesStéphane Lagarde/Denis MourardCo-alignment ProcedureOPD ADJUSTEMENT MODULES SFO-IMG (Image Adjustment)SFO-FOP (Feeding Optics)ADC (Atmospheric Dispersion Compensator)CHARA VISIBLE TABLEPDC (Polarization Delay Compensator)BFO-RFL BFO-BSP BCS-FOMBCS-BCCBCS-PISBCS-BCD BAS-COLSHUBAS-FOCBAS-TTT (Tip/Tilt Tracker)BAS-PUP (Pupil Adjustment)SFU-SDL (SPICA Delay Lines)Specification: Accuracy < 7µm
5. SPICA-VIS Design Review, July 23-24, 2020Stéphane Lagarde/Denis MourardCo-alignment ProcedureTHE SPICA BEAM CONTROL SYSTEM PDC (Polarization Delay Compensator)BFO-RFL BFO-BSP BCS-FOMBCS-BCCBCS-PISBCS-BCD BAS-COLSHUBAS-FOCBAS-TTT (Tip/Tilt Tracker)BAS-PUP (Pupil Adjustment)SFU-SDL (SPICA Delay Lines)SFO-IMG (Image Adjustment)SFO-FOP (Feeding Optics)ADC (Atmospheric Dispersion Compensator)CHARA VISIBLE TABLEThe SPICA adjustment modulesBCS(Beam Control System)Specification: SamplingImage: 3pixels per l/DPupil: 40pixels
6. SPICA-VIS Design Review, July 23-24, 2020The co-alignment procedureStéphane Lagarde/Denis MourardCo-alignment ProcedureFind the reference axis of SPICABFO-BSPBFO-RFLBCS-FOMBCS-BCCBCS-PISBCS-BCDCHARA (STS_VIS)FBISFUSPICA AXISSFO-FOPSFO-IMGBAS-PUPBAS-TTT1b) Determination of the image and pupil reference positionsa) Back Illumination of the fiber
7. SPICA-VIS Design Review, July 23-24, 2020The co-alignment procedureStéphane Lagarde/Denis MourardCo-alignment ProcedureCo-align SPICA and CHARABFO-BSPBFO-RFLBCS-FOMBCS-BCCBCS-PISBCS-BCDCHARA (STS_VIS)FBISFUSPICA AXISSFO-FOPSFO-IMGBAS-PUPBAS-TTTCHARA AXIS2a) Illumination of SPICA by the STS sourceb) Comparison between image and pupil positions and the referencesc) Adjustment of the beam the angular and lateral
8. BFO-BSPCHARA (STS)SFUSFO-FOPSFO-IMGBAS-PUPBAS-TTTb) Determination of the OPD difference between SPICA and IR instrumentsa) Co-phasing between STS and IR instrumentsDISCAOSDTIR INSTRUMENTS:MIRC OU SPICA_FTDICHROICS VIS/IRc) Adjustment of the SPICA internal Delay LinesSFU-SDL
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