1. Optical Levers Layout and Cabling Yuta Michimura, Yuya Kuwahara Ando Group Department of Physics, University of Tokyo November 19, 2015

2. Draw rough layout and cabling for optical levers (oplevs) for mirrors Oplevs for optical tables are not considered yet “AS rack” is currently not on the list from DGS/AEL group References: - JGW-D1402411 (oplev QPD) - JGW-D1302087 (oplev QPD interface with whitening) - JGW-D1100425 (electronics racks layout) - JGW-D1402831 (what’s inside electronics racks)JGW-D1402411JGW-D1302087JGW-D1100425JGW-D1402831 Scope and Disclaimer 2

3. IFI KAGRA Layout 3 MCF IMM MCE PRM PR3 PR2 BS SR2 SR3 OMM IYC IYA EYA EYC EYT IXC IXAEXA EXC EXT IMC REFL REFL IMC TRANS IMMT2T IMMT1T POY POX POP POS TRY TRX AS IO MC MMT PRM LSCASC1ASC2 AUX PR2BSSR2 IX1 PCX1 IY1 PCY1 EY2 EY3 EY4 EX2EX3EX4 PSL Server room AS? table chamber rack

4. IFI List of Oplevs 4 MCF IMM MCE PRM PR3 PR2 BS SR2 SR3 OMM IYC IYA EYA EYC EYT IXC IXAEXA EXC EXT IMC REFL REFL IMC TRANS IMMT2T IMMT1T POY POX POP POS TRY TRX AS IO MC MMT PRM LSCASC1ASC2 AUX PR2BSSR2 IX1 PCX1 IY1 PCY1 EY2 EY3 EY4 EX2EX3EX4 PSL Server room AS? MCe Blue is for iKAGRA and bKAGRA Green is for bKAGRA only MCi MCo IMMT2 IFI (?) STM1 (?) STM2 (?) IMMT1 PRM PR3PR2 BS ITMY ETMY ITMX ETMX SR2 SR3 SRM OMC (?) TMSY (?) TMSX (?)

5. IFI Where Do Signals Go 5 MCF IMM MCE PRM PR3 PR2 BS SR2 SR3 OMM IYC IYA EYA EYC EYT IXC IXAEXA EXC EXT IMC REFL REFL IMC TRANS IMMT2T IMMT1T POY POX POP POS TRY TRX AS IO MC MMT PRM LSCASC1ASC2 AUX PR2BSSR2 IX1 PCX1 IY1 PCY1 EY2 EY3 EY4 EX2EX3EX4 PSL Server room AS? Oplev signals should go to the rack which has respective mirror suspension circuits. DC power for SLD should also be supplied from the same rack.

6. SLD (Super Luminescent Diode) SUPERLUM SLD-MS-261-MP1-FC/APC-PMF power ~1 mW, wavelength 680 nm needs +15 ~ +24 VDC (+18V will be supplied from the racks; needs conversion connector) Light Source 6

7. schematic: JGW-D1402411JGW-D1402411 4 DC outputs from quadrants (Dsub 15pin) needs +/- 15 VDC (Dsub 15pin) (supplied from whitening filter interface) Oplev QPD 7 photo by Yaguchi

8. schematic: JGW-D1302087 (Universal whitening filter with DC power) for 2 QPDsJGW-D1302087 receives Dsub 15pin from QPD, supplies +/- 15 VDC for QPD, apply whitening filters for 4 DC outputs before they go to AA filters whitening filters will be switched with BO/BI (Dsub 37pin) needs +/- 18 VDC Oplev QPD Interface with Whitening 8 Front Panel Rear Panel

9. Cabling 9 BNC SMA DC power 9f Dsub (pin, gender) Other cable Coaxial cable ribbon cable DC power cable B N SMB, SMC ～ needs AC power C N Oplev QPD Interface (D1302087) ±18V to AA 15m37f 9f37f to BI DC Power Supplies rack Oplev QPD (D1302087) 15f ±15V, DC1,2,3,4 from BO pylon SLD conversion ±18V +18V mirror 9f37f 15m37f AA: anti-aliasing filter BO: binary output module BI: binary input module In1 From BO In2From BO Out1To BIOut2To BI