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Modulation frequencies are listed in [[MIFIOOInterfaces]]. See [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2986|JGW-D1402986|]] for updated list. |
== In-vac design considerations == [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10661 | Information from LIGO and VIRGO about in-vac PDs]] [[https://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=10545 | PD feedthrough for ISS ]] |
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== List for iKAGRA == PMC: fPMC sideband / FRC: fIMC sideband / IMC: fIMC sideband, with ASC / FPMI: f1 sideband, without ASC / no ISS |
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See table below. All the PDs are in air. | == Types == ||Name ||Schematics ||Description || ||RF PD ([[KAGRA/Subgroups/MIF/AEL/Photodetectors/RFPDList|List]]) ||[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=1280|JGW-D1201280]] ||For IR. Same schematic for both in-air and in-vac, but in different kind of box. || ||DC PD ||[[http://www.thorlabs.co.jp/thorproduct.cfm?partnumber=PDA100A|Thorlabs PDA100A]] ||For IR, in-air. || ||RF QPD ([[KAGRA/Subgroups/MIF/AEL/Photodetectors/RFQPDList|List]]) ||[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2631|JGW-D1402631]] ||For IR. Same schematic for both in-air and in-vac, but in different kind of box. || ||DC QPD ([[KAGRA/Subgroups/AOS/DCQPDList|List]], [[KAGRA/Subgroups/AOS/DCQPDDriverList|Driver List]]) ||[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2411|JGW-D1402411]] ||For IR, in-air (same as oplev QPD for now). || ||RF PD for green ||([[https://dcc.ligo.org/LIGO-D1002969/public|LIGO-D1002969]]) ||For green, in-air (could be BB). || ||DC PD for green ||[[http://www.thorlabs.co.jp/thorproduct.cfm?partnumber=PDA100A|Thorlabs PDA100A]] ||For green, in-air (same for IR for now). || ||DC QPD for green ||[[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/private/DocDB/ShowDocument?docid=2411|JGW-D1402411]] ||For green, in-air (same for IR for now). || ||DC PD in vacuum ||([[https://dcc.ligo.org/LIGO-D1101059|LIGO-D1101059]]) ||For IR, in-vac. || ||DC QPD in vacuum ||([[https://dcc.ligo.org/LIGO-T0900423/public|LIGO-T0900423]]) ||For IR, in-vac, bare QPD without amplifier. || ||DC QPD in vacuum for green ||([[https://dcc.ligo.org/LIGO-T0900423/public|LIGO-T0900423]]) ||For green, in-vac, bare QPD without amplifier. || |
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== List for bKAGRA == PMC: fPMC sideband / FRC: fIMC sideband / IMC: fIMC sideband, with ASC / DRFPMI: f1,f2,f3 sidebands, with ASC / ALS: fALSX,fALSY sidebands, without ASC / with ISS |
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|| Name || Type || Frequency|| Ser. Num. || Location || Desctription ||iKAGRA? || ||||||||||||||In air PDs|| || PMCR || RF PD || fPMC,DC || || PSL table || PMC reflection ||yes|| || PMCT || DC PD || DC || || PSL table || PMC transmission ||yes|| || REFCAVR|| RF PD || fIMC,DC || || PSL table || FRC reflection ||yes|| || REFCAVT|| DC PD || DC || || PSL table || FRC transmission ||yes|| || IP_A || DC QPD || DC || || PSL table || input pointing to IMC ||yes|| || IP_B || DC QPD || DC || || PSL table || input pointing to IMC ||yes|| || IMCR || RF PD || fIMC,DC || || IMC REFL table || IMC reflection ||yes|| || IMCR_A || RF QPD || fIMC,DC || || IMC REFL table || IMC reflection WFS ||yes|| || IMCR_B || RF QPD || fIMC,DC || || IMC REFL table || IMC reflection WFS ||yes|| || IMCT || DC PD || DC || || IMC TRANS table || IMC transmission ||yes|| || IMCT_A || DC QPD || DC || || IMC TRANS table || IMC transmission pointing ||yes|| || IMCT_B || DC QPD || DC || || IMC TRANS table || IMC transmission pointing ||yes|| || REFL || RF PD || f1,f2,DC || || REFL table || DRFPMI reflection ||yes|| || REFLNRSB|| RF PD || f1,f2,DC || || REFL table || DRFPMI reflection, for nonresonant SB || || || REFL_A || RF QPD || f1,f2,DC || || REFL table || DRFPMI reflection ||yes|| || REFL_B || RF QPD || f1,f2,DC || || REFL table || DRFPMI reflection ||yes|| || IMMT1T || DC PD || DC || || pylon close to IMM chamber || IMMT1 transmission, power monitor ||yes|| || IMMT2T || RF PD || f1,f2,DC || || IMMT2 table || IMMT2 transmission, power/RFAM monitor || || || IMMT2T_A || DC QPD || DC || || IMMT2 table || IMMT2 transmission, input pointing to DRFPMI ||yes|| || IMMT2T_B || DC QPD || DC || || IMMT2 table || IMMT2 transmission, input pointing to DRFPMI ||yes|| || POP || RF PD || f1,f2,DC || || POP table || PRC pick-off || || || POP_A || RF QPD || f1,f2,DC || || POP table || PRC pick-off || || || POP_B || RF QPD || f1,f2,DC || || POP table || PRC pick-off || || || SPOP || RF PD || 2*f1,2*f2,DC || || POP table || PRC pick-off, sideband build-up monitor || || || POP_GR || RF PD for green || fALSY,DC || || POP table || ALSY reflection || || || SPOS || RF PD || 2*f1,2*f2,DC || || POS table || SRC pick-off, sideband build-up monitor || || || POS_GR || RF PD for green || fALSX,DC || || POS table || ALSX reflection || || || POX || RF PD || f1,f2,DC || || POX table || X arm reflection || || || POY || RF PD || f1,f2,DC || || POY table || Y arm reflection || || || TRX || DC PD || DC || || TRX table || ETMX transmission ||yes|| || TRX_A || DC QPD || DC || || TRX table || ETMX transmission pointing ||yes|| || TRX_B || DC QPD || DC || || TRX table || ETMX transmission pointing ||yes|| || TRX_GR || DC PD for green || DC || || TRX table || ALSX transmission || || || TRX_GR_A || DC QPD for green || DC || || TRX table || ALSX transmission pointing || || || TRX_GR_B || DC QPD for green || DC || || TRX table || ALSX transmission pointing || || || TRY || DC PD || DC || || TRY table || ETMY transmission ||yes|| || TRY_A || DC QPD || DC || || TRY table || ETMY transmission pointing ||yes|| || TRY_B || DC QPD || DC || || TRY table || ETMY transmission pointing ||yes|| || TRY_GR || DC PD for green || DC || || TRY table || ALSY transmission || || || TRY_GR_A || DC QPD for green || DC || || TRY table || ALSY transmission pointing || || || TRY_GR_B || DC QPD for green || DC || || TRY table || ALSY transmission pointing || || || AS || RF PD || f1,DC || || AS table || DRFPMI anti-symmetric ||yes|| || AS_A || RF QPD || f1,DC || || AS table || DRFPMI anti-symmetric || || || AS_B || RF QPD || f1,DC || || AS table || DRFPMI anti-symmetric || || || OMCT || DC PD || DC || || AS table || DRFPMI DC readout || || || OMCT_A || DC QPD || DC || || AS table || OMC alignment || || || OMCT_B || DC QPD || DC || || AS table || OMC alignment || || ||||||||||||||In vac PDs|| || IMCTVAC_A || DC QPD in vacuum || DC || || MCE chamber || IMC transmission pointing || || || IMCTVAC_B || DC QPD in vacuum || DC || || MCE chamber || IMC transmission pointing || || || IMMT1TVAC || DC PD in vacuum || DC || || IMM chamber || IMMT1 transmission, for ISS || || || IMMT2TVAC || DC PD in vacuum || DC || || IFI chamber || IMMT2 transmission, for ISS || || || IMMT2TVAC_A || DC QPD in vacuum || DC || || IFI chamber || IMMT2 transmission, input pointing to DRFPMI || || || IMMT2TVAC_B || DC QPD in vacuum || DC || || IFI chamber || IMMT2 transmission, input pointing to DRFPMI || || || REFL || RF PD || f1,f2,DC || || IFI chamber || DRFPMI reflection || || || REFL_A || RF QPD || f1,f2,DC || || IFI chamber || DRFPMI reflection || || || REFL_B || RF QPD || f1,f2,DC || || IFI chamber || DRFPMI reflection || || || POPVAC || RF PD || f1,f2,DC || || PR2 chamber || PRC pick-off || || || POPVAC_A || RF QPD || f1,f2,DC || || PR2 chamber || PRC pick-off || || || POPVAC_B || RF QPD || f1,f2,DC || || PR2 chamber || PRC pick-off || || || POXVAC || RF PD || f1,f2,DC || || SR3 chamber || X arm reflection || || || POYVAC || RF PD || f1,f2,DC || || SR3 chamber || Y arm reflection || || || TRXVAC_A || DC QPD in vacuum || DC || || EXT chamber || ETMX transmission pointing || || || TRXVAC_B || DC QPD in vacuum || DC || || EXT chamber || ETMX transmission pointing || || || TRYVAC_A || DC QPD in vacuum || DC || || EYT chamber || ETMY transmission pointing || || || TRYVAC_B || DC QPD in vacuum || DC || || EYT chamber || ETMY transmission pointing || || || ASVAC || RF PD || f1,DC || || OMM chamber || DRFPMI anti-symmetric || || || ASVAC_A || RF QPD in vacuum || f1,DC || || OMM chamber || DRFPMI anti-symmetric || || || ASVAC_B || RF QPD in vacuum || f1,DC || || OMM chamber || DRFPMI anti-symmetric || || || OMCTVAC || DC PD in vacuum || DC || || OMM chamber || DRFPMI DC readout || || || OMCTVAC_A || DC QPD in vacuum || DC || || OMM chamber || OMC alignment || || || OMCTVAC_B || DC QPD in vacuum || DC || || OMM chamber || OMC alignment || || |
== List == See [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2986|JGW-D1402986]] for location of photodetectors. See [[https://docs.google.com/spreadsheets/d/1EcuZOQP8yrD3s7no9PPGSxSD0V3NGAFvx799IeWH-1U/|this Google spreadsheet]] for list of photodetectors. * Modulation frequencies are listed in [[MIFIOOInterfaces]]. * iKAGRA configuration (PMC: fPMC sideband / FRC: fIMC sideband / IMC: fIMC sideband, with ASC / 3-km MI: f1 sideband, without ASC / no ISS) * bKAGRA configuration (PMC: fPMC sideband / FRC: fIMC sideband / IMC: fIMC sideband, with ASC / DRFPMI: f1,f2,f3 sidebands, with ASC / ALS: fALSX,fALSY sidebands, without ASC / with ISS) |
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Photodetectors
In-vac design considerations
Information from LIGO and VIRGO about in-vac PDs PD feedthrough for ISS
Types
Name |
Schematics |
Description |
RF PD (List) |
For IR. Same schematic for both in-air and in-vac, but in different kind of box. |
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DC PD |
For IR, in-air. |
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RF QPD (List) |
For IR. Same schematic for both in-air and in-vac, but in different kind of box. |
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DC QPD (List, Driver List) |
For IR, in-air (same as oplev QPD for now). |
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RF PD for green |
For green, in-air (could be BB). |
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DC PD for green |
For green, in-air (same for IR for now). |
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DC QPD for green |
For green, in-air (same for IR for now). |
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DC PD in vacuum |
For IR, in-vac. |
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DC QPD in vacuum |
For IR, in-vac, bare QPD without amplifier. |
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DC QPD in vacuum for green |
For green, in-vac, bare QPD without amplifier. |
List
See JGW-D1402986 for location of photodetectors. See this Google spreadsheet for list of photodetectors.
Modulation frequencies are listed in MIFIOOInterfaces.
- iKAGRA configuration (PMC: fPMC sideband / FRC: fIMC sideband / IMC: fIMC sideband, with ASC / 3-km MI: f1 sideband, without ASC / no ISS)
- bKAGRA configuration (PMC: fPMC sideband / FRC: fIMC sideband / IMC: fIMC sideband, with ASC / DRFPMI: f1,f2,f3 sidebands, with ASC / ALS: fALSX,fALSY sidebands, without ASC / with ISS)
For aLIGO, PD/QPDs below are in vacuum (see LIGO-T1000264).
- RF PDs for REFL, POP, AS
- RF QPDs for REFL, AS
- DC QPDs for MC2TRANS, POP, TRX, TRY, OMC (they don't have in air versions)