KAGRA ISC Electrical Components Layout May 17, 2019 KAGRA ISC Electrical Components Layout Yuta Michimura Ando Group Department of Physics, University of Tokyo

Scope and Disclaimer Draw rough layout of electrical components (RF distribution, PD/QPDs, servo boards) for KAGRA ISC Cameras and picomotors are not included Components for ISS, ALS, and OMC are very uncertain “AS rack” is currently not on the rack list Underlined ones are used also for iKAGRA References: - JGW-D1402908 (IMC servo topology) - JGW-D1402984 (Cabling around PSL+IMC) - JGW-D1100425 (electronics racks layout) - JGW-D1402831 (what’s inside electronics racks) - JGW-T1402982 (list of ISC detection ports) - Wiki/OutputTables (list of output tables)

KAGRA Layout EYT TRY table EYC chamber EYA IMC TRANS MCE IYA IYC PSL rack MCE IYA IYC PCY1 PSL IY1 IMMT2T TRX MC IX1 PCX1 MCF PRM PR2 IFI IMM PR3 BS IXC EXC IXA EXA EXT IO IMMT1T IMC REFL REFL MMT PRM POY LSC ASC1 ASC2 AUX POP SR2 POS EX2 EX3 EX4 PR2 BS SR2 SR3 POX AS? OMM AS Server room

List of EOMs, PDs, QPDs Underline: also for iKAGRA [ ]: may be omitted EOM (fPMC) EOM (fIMC, f2) EOM (f1, f3) PMCR (fPMC, DC) PMCT (DC) REFCAVR (fIMC, DC) REFCAVT (DC) IP A (DC) IP B (DC) EYT TRYVAC A (DC) TRYVAC B (DC) TRYVAC GR A (DC) TRYVAC GR B (DC) TRY IMCT (DC) [IMCT A (DC)] [IMCT B (DC)] TRY (DC) TRY GR (DC) [TRY A (DC)] [TRY B (DC)] [TRY GR A (DC)] [TRY GR B (DC)] EY2 EYC EY3 POPVAC (f1, f2, DC) POPVAC A (f1, f2, DC) POPVAC B (f1, f2, DC) EY4 IMCTVAC A (DC) IMCTVAC B (DC) EYA IMC TRANS TRX (DC) TRX GR (DC) [TRX A (DC)] [TRX B (DC)] [TRX GR A (DC)] [TRX GR B (DC)] REFLVAC (f1, f2, DC) REFLVAC A (f1, f2, DC) REFLVAC B (f1, f2, DC) IMMT2TVAC (DC) IMMT2TVAC A (DC) IMMT2TVAC B (DC) MCE IMMT2T (f1, f2, DC) [IMMT2T A (DC)] [IMMT2T B (DC)] IYA TRXVAC A (DC) TRXVAC B (DC) TRXVAC GR A (DC) TRXVAC GR B (DC) IYC PCY1 IMMT1TVAC (DC) PSL IY1 IMMT2T [POYVAC (f1, f2, DC)] TRX MC IX1 PCX1 MCF PRM PR2 IFI IMM PR3 BS IXC EXC IXA EXA EXT IO IMMT1T IMC REFL REFL MMT PRM POY LSC ASC1 ASC2 AUX POP SR2 POS EX2 EX3 EX4 EOM (fALSY) SPOS (2*f1, 2*f2, DC) POS GR (fALSY, DC) PLLY (BB, DC) PR2 BS SR2 [IMMT1T (DC)] IMCR (fIMC, DC) IMCR A (fIMC, DC) IMCR B (fIMC, DC) SR3 POY (f1, f2, DC) POX POX (f1, f2, DC) [POXVAC (f1, f2, DC)] EOM (fALSX) POP (f1, f2, DC) SPOP (2*f1, 2*f2, DC) POP GR (fALSX, DC) PLLX (BB, DC) [POP A (f1, f2, DC)] [POP B (f1, f2, DC)] ASVAC (f1, DC) OMCTVAC (DC) ASVAC A (f1, DC) ASVAC B (f1, DC) OMCTVAC A (DC) OMCTVAC B (DC) AS? AS (f1, DC) OMCT (DC) AS A (f1, DC) AS B (f1, DC) [OMCT A (DC)] [OMCT B (DC)] REFL (f1, f2, DC) REFL NRSB (f3-f1, f2-f1, DC) REFL A (f1, f2, DC) REFL B (f1, f2, DC) OMM AS Server room

Where Do Signals Go EYT TRY EYC DC DC EYA IMC TRANS MCE IYA fIMC, DC f1, f2, DC IYC PCY1 PSL IY1 IMMT2T TRX MC IX1 PCX1 MCF PRM PR2 IFI IMM PR3 BS IXC EXC IXA EXA EXT IO IMMT1T IMC REFL REFL MMT PRM POY LSC ASC1 ASC2 AUX POP SR2 POS EX2 EX3 EX4 DC DC PR2 BS SR2 f1, f2, DC f1, f2, 2*f1, 2*f2, fALSX, BB, DC fIMC, DC SR3 2*f1, 2*f2, fALSY, BB, DC f1, f2, f3-f1, f3-f2, DC POX fPMC, DC AS? OMM AS f1, f2, DC f1, DC Server room

RF Generation and Distribution EYT TRY EY2 EYC EY3 EY4 EYA IMC TRANS MCE IYA fPMC IYC PCY1 PSL IY1 IMMT2T TRX MC IX1 PCX1 MCF PRM PR2 IFI IMM PR3 BS IXC EXC IXA EXA EXT IO IMMT1T IMC REFL REFL MMT PRM POY LSC ASC1 ASC2 AUX POP SR2 POS EX2 EX3 EX4 PR2 BS SR2 fIMC f1 → 2*f1 f2 → 2*f2 f3 → f3-f1 → f3-f2 fALSX fALSY SR3 POX AS? OMM AS Server room

List of Servo Boards EYT TRY EYC EYA IMC TRANS MCE IYA IYC PSL IMMT2T PCY1 PSL IY1 IMMT2T TRX MC IX1 PCX1 MCF PRM PR2 IFI IMM PR3 BS IXC EXC IXA EXA EXT IO IMMT1T IMC REFL REFL MMT PRM POY LSC ASC1 ASC2 AUX POP SR2 POS EX2 EX3 EX4 PR2 BS SR2 Common Mode Servo (for IMC) ISS SR3 Common Mode Servo (for CARM) Common Mode Servo (for ALSX) Common Mode Servo (for ALSY) Phase Frequency Discriminator (for ALSX) Phase Frequency Discriminator (for ALSY) PLL Servo ? (for ALSX) PLL Servo ? (for ALSY) POX TTFSS PMC Servo OMC Servo ? AS? OMM AS Server room

List of PZTs PZTs in-air PZTs in-vac EYT TRY EYC EYA IMC TRANS MCE IYA IYC PCY1 PSL IY1 IMMT2T TRX MC IX1 PCX1 MCF PRM PR2 IFI IMM PR3 BS IXC EXC IXA EXA EXT IO IMMT1T IMC REFL REFL MMT PRM POY LSC ASC1 ASC2 AUX POP SR2 POS EX2 EX3 EX4 PR2 BS SR2 SR3 POX Laser PMC Periscope x4 AS? OMM AS OMC Server room

List of Picomotors picomotors in-air picomotors in-vac EYT TRY steering to TRY x4 TRYVAC QPD x4 TRYVAC GR QPD x4 [TRY QPD x4] [TRY GR QPD x4] EY2 EYC [IMCT QPD x4] EY3 steering to POP x4 POPVAC QPD x4 EY4 steering to IMC x4 IP QPD x4 MCe sus x2 IMCTVAC QPD x4 EYA IMC TRANS MCE steering to IFI x4 IMMT2TVAC PD x2 IMMT2TVAC QPD x4 IYA [TRX QPD x4] [TRX GR QPD x4] [IMMT2T QPD x4] MCi sus x2 MCe sus x2 IYC PCY1 steering to TRX x4 TRYVAC QPD x4 TRYVAC GR QPD x4 IMMT2TVAC PD x2 PSL IY1 IMMT2T TRX MC IX1 PCX1 MCF PRM PR2 IFI IMM PR3 BS IXC EXC IXA EXA EXT IO IMMT1T IMC REFL REFL MMT PRM POY LSC ASC1 ASC2 AUX POP SR2 POS EX2 EX3 EX4 steering Ygreen x4 PR2 BS SR2 IMCR QPD x4 SR3 POX steering Xgreen x4 [POP QPD x4] AS? REFL QPD x4 OMM AS AS QPD x4 [OMCT QPD x4] steering to AS x4 ASVAC QPD x4 OMCTVAC QPD x4 Server room