Analog Electronics for Interferometer Control

Upcoming Request for AEL

Quantities (without spare) for chassis (not boards) we have to additionally make by the specified time are shown. Request from IOO+MIF(+IMC suspension?).

Name

by 2016.10
(for IMC WFS)

by 2017.2
(for green PLL, ISS)

by 2017.5
(for PRMI initial alignment)

by 2017.7
(for PRMI LSC/ASC)

by full bKAGRA

Produced

High Power Coil Driver

3? (only for IMC included)

?

Quad IQ Demodulator LSC

7

5

Quad IQ Demodulator ASC

+2

+4

22

0

RF Distribution Amplifier

+1

+2

10

1(handmade)

Common Mode Servo Board

+1

4

0

Frequency Doubler

+1

2

0

ISS Board

+1?

1

0

Phase Frequency Discreminator

+1?

1

0

VCO with PLL

+2?

2

0

Low noise VCOs

/LowNoiseVCOs

Electronics

Red rows: To be designed (or selected). Yellow rows: Not yet purchased, short of stock, or in production. Green rows: Ready for bKAGRA Phase 1. White rows: Ready for bKAGRA. Pink rows: taken cared by ToyamaU

Last update: Sept 11, 2017 (Added electronics for RF AM, updated status)

Name

Height

Schematics

Power

Description

Needed
(bKAGRA Phase 1)

Needed
(bKAGRA)

Produced

Status

for PSL

RF Oscillator Source

2U

JGW-T1706762, Agilent N5181B

AC

for the time being (for auxiliary modulations like fPMC, fIMC, fALS, we should use cheaper fixed oscillator)

5

7

6

Stored in ICRR, Hongo, and Toyama

RF PD

-

JGW-D1201280

+-18V

has RF HI, RF LOW outputs(BNC), and DC output(Dsub 9pin, which includes +-18V)

6

18

3+20+20

3 handmaking done; 40 arrived with diodes(20 for MIF, 20 without resonances); List

DC PD

-

Thorlabs PDA100A

+-12V

has DC output(BNC), needs power cable PDA-C-72

7

9

6+5

At Kamioka Branch

TTFSS

-

JGW-D1301823

from Interface

1

1

1

At the site

TTFSS Interface

-

JGW-D1301831

+-17V,+-24V,+-200V

1

1

1

At the site

AOM Driver

-

Crystal Technology 1110AF-AEFO-1.5

+28V

1

1

1

At the site, for reference cavity

PZT Driver

-

?

AC

for periscope PZTs, 2ch

1

1

1

At the site??

PMC Servo Board

-

(JGW-D1301823)

from Interface

1

1

1

At the site (basically copy of TTFSS)

PMC Servo Board Interface

-

(JGW-D1301831)

+-17V,+-24V,+-200V

1

1

1

At the site (basically copy of TTFSS Interface)

for IMC LSC

Quad IQ Demodulator LSC

1U

JGW-D1402412

+-18V

4 LOs for 4 demodulation channels

1

7

5

At Kamioka Branch, additional requested to AEL (JGW-T1605487)

Dual IQ Demodulator

1U

(LIGO-E1100044)

+-18V

2 LOs for 2 demodulation channels, fast verison

3

3

use QuadIQ for now

Common Mode Servo Board

2U

JGW-D1503705

+-17V,+-24V

2 inputs, slow and fast outputs

2

4

5

At Kamioka Branch List

RF PD Interface Board

1U

JGW-D1503818

+-18V

for ribbon cables from 4 RF PDs, with whitening filter

3

6

10

At Kamioka Branch

for IMC ASC, better PSL

RF QPD

-

JGW-D1403812,JGW-D1403813

+-18V

should have 4 RF outputs, 4 DC outputs

8

14

5+15

5 for IMC, 15 for IFO at Kamioka Branch; List

RF QPD Interface Board

1U

JGW-D1503814

+- 18V

for ribbon cables from 4 RF QPDs, without whitening filter

3

4

5

At Kamioka Branch

DC QPD

-

JGW-D1402411

+-15V

has 4 DC outputs(Dsub 15pin, which includes +-15V) use oplev QPD for the time being

10

12

40

(including ones for oplevs, ones for green)

DC QPD Interface Board

1U

JGW-D1302087

+-18V

for ribbon cables from 2 DC QPDs, with whitening filter

5

8

20

At Kamioka Branch (including ones for oplevs)

Quad IQ Demodulator ASC

1U

JGW-D1402412

+-18V

1 LO for 4 demodulation channels

8

22

0

Requested to AEL (JGW-T1605488)

RF Distribution Amplifier

1U

JGW-D1504460

+-24V

split into 8

4

10

1

Requested to AEL (JGW-T1605490)

Delay Line Phase Shifter

1U

(LIGO-D0900128)

+15V?

for 2 channels

3

3

DC PD Interface Board

-

(LIGO-D1002932)

+-12V

for 4 DC PDs, without whitening filter, on output tables

5

6

for DRFPMI

Frequency Doubler

1U

(LIGO-D1002178)

+-17V,+-24V

for sideband power monitor

1

2

Requested to AEL (JGW-T1605492)

Difference Frequency Generator

1U?

for nonresonant sidebands, 2 channels

0

1

for ALS

RF PD for green

-

(LIGO-D1002969)

use IR circuit but change PD?

2?

2

BB PD for IR

-

(LIGO-D1002969)

for ALS PLL (we use IR beat for KAGRA, while aLIGO uses green beat)

2?

2

BB PD Interface Board

1U?

(LIGO-D1102079)

same for RF PD Interface?

1?

1

DC PD for green

-

Thorlabs PDA100A

+-12V

has DC output, needs power cable PDA-C-72

2?

2

DC QPD for green

-

JGW-D1402411

+-15V

has 4 DC outputs(Dsub 15pin, which includes +-15V) use oplev QPD for the time being

4?

4

40

(including ones for oplevs, ones for IR)

Phase Frequency Discriminator

1U

(LIGO-D1002476)

+-17V,+-24V

for ALS, 2 channels

2?

1

Made by ToyamaU?

VCO with PLL

2U

(LIGO-D0900605,LIGO-D1300812)

+-17V,+-24V

for PLL VCO, we will use E8663D

2?

2

Made by ToyamaU?

for better sensitivity

DC PD in vacuum

-

(LIGO-D1101059)

for ISS and OMCTVAC

0

3

DC QPD in vacuum

-

(LIGO-T0900423); also see this for the explanation of the 5th diode.

bare QPD without amplifier

0

10

DC QPD in vacuum for green

-

(LIGO-T0900423)

bare QPD without amplifier

0

4

DC PD Amplifier

?

+-18V

for DC PD in vacuum

0

2

DC QPD Amplifier

1U

(LIGO-D1002481)

+-18V

for ribbon cables from 2 DC QPDs in vacuum

0

7

ISS Board

?

(LIGO-D1001985, LIGO-D1300439)

1?

1

Made by ToyamaU?

OMC Servo Board

?

0

1

RF Oscillator Source(Wenzel OCXO)

2U

(LIGO-D080702)

0

7

EOM/AOM Driver

?

(LIGO-E1400445)

for RF AM stabilization, modulation amplitude adjustment

0

3

TO DO

Common Mode Servo list

Photodetector list

Cable list

System diagram

For each rack

PSL

See JGW-D1402984 for cabling.

Name

Height

Description

to ADC

from DAC

bKAGRAp1?

RF Oscillator Source

2U

for fPMC sideband

yes

(RF splitter)

-

split fPMC into 2 for PSL EOM, PMCR LO

yes

PMC Servo Board

-

for PMC servo, receives PMCR, needs fPMC LO

yes

PMC Servo Board Interface

-

for PMC Servo Board

yes

TTFSS

-

for Refcav servo, receives REFCAVR, needs fIMC LO from IO rack

yes

TTFSS Interface

-

for TTFSS

??

??

yes

DC PD Interface Board

-

for PMCT, REFCAVT, RFAMR, RFAMT

yes

PZT Driver

-

for periscope PZTs

BNCx2

yes

Output Tables

Interface boxes for Thorlabs DC PDs are located at the respective output tables.

Name

Height

Description

Location

to ADC

from DAC

bKAGRAp1?

DC PD Interface Board

-

for IMCT, (3ch left)

IMC TRANS table -> IO rack

Dsubx1(no whitening)

yes

DC PD Interface Board

-

for IMMT1T, (3ch left)

IMMT1T pylon -> MMT rack

Dsubx1(no whitening)

yes

DC PD Interface Board

-

for TRX, TRX_GR, (2ch left)

TRX table -> EX4 rack

Dsubx1(no whitening)

yes

DC PD Interface Board

-

for TRY, TRY_GR, (2ch left)

TRY table -> EY4 rack

Dsubx1(no whitening)

yes

DC PD Interface Board

-

for OMCT, (3ch left)

AS table -> AS rack?

Dsubx1(no whitening)

IO racks

Located between PSL and MCF chamber. Generates RF for fIMC, f1, f2, f3, 2*f1, 2*f2, f3-f1, f3-f2, fALSX, and fALSY. Has servo circuits for FRC, IMC, and ISS. Takes care of PD/QPDs on PSL, IMC REFL, and IMC TRANS tables. Also takes care of equivalent PD/QPDs in vacuum.

Name

Height

Description

to ADC

from DAC

bKAGRAp1?

PD/QPD

Dual IQ Demodulator

1U

for IMCR(fIMC), RFAMDLINE(fIMC)

Dsubx1(no whitening)

yes

RF PD Interface Board

1U

for PMCR, REFCAVR, IMCR, (1ch left)

Dsubx1(no whitening)

yes

RF QPD Interface Board

1U

for IMCR_A/B, (2ch left)

Dsubx2(no whitening)

yes

DC QPD Interface Board

1U

for IP_A/B

Dsubx2(whitened)

yes

DC QPD Interface Board

1U

for IMCT_A/B

Dsubx2(whitened)

yes

DC QPD Amplifier

1U

for IMCTVAC_A/B

Dsubx2(whitening)

fIMC

RF Oscillator Source

2U

for fIMC sideband (also for Refcav)

yes

RF Distribution Amplifier

1U

for fIMC. to PSL EOM, to Delay Line for Refcav, to Delay Line for IMC LSC, to IQ Demod ASC x 2, (3ch left)

yes (by 2016.10)

Delay Line Phase Shifter

1U

for TTFSS LO(Refcav lock), IMCR LO(IMC LSC)

yes

Common Mode Servo Board

2U

for IMC servo

Dsubx3(no whitening)

Dsubx1

yes

Quad IQ Demodulator ASC

1U

for IMCR_A QPD(fIMC)

Dsubx2(whitening)

yes (by 2016.10)

Quad IQ Demodulator ASC

1U

for IMCR_B QPD(fIMC)

Dsubx2(whitening)

yes (by 2016.10)

f1

RF Oscillator Source

2U

for f1 sideband

yes

RF Distribution Amplifier

1U

for f1. to PSL EOM, to PSL EOAM, to MMT rack, to LSC racks, to Frequency Doubler, to Diff. Freq. Generator, (2ch left)

yes

Frequency Doubler

1U

f1 to 2*f1 for ISC racks

yes (by 2017.7)

f2

RF Oscillator Source

2U

for f2 sideband

RF Distribution Amplifier

1U

for f2. to PSL EOM, to MMT rack to LSC racks, to Frequency Doubler, to Diff. Freq. Generator, (3ch left)

Frequency Doubler

1U

f1 to 2*f1 for ISC racks

f3

RF Oscillator Source

2U

for f3 to splitter

(RF splitter)

-

split f3 into 2 for Diff. Freq. Generator

Diff. Freq. Generator

1U?

make f3-f1 for ISC racks, make f3-f2 for ISC racks

fALSX,fALSY

RF Oscillator Source

2U

for fALSX sideband for ISC racks

(by 2017.2)

RF Oscillator Source

2U

for fALSY sideband for ISC racks

(by 2017.2)

Others

ISS Board

??

??

??

(by 2017.2)

MMT rack

Located near PRM chamber. Takes care of PD/QPDs on IMMT1 and IMMT2 tables. Also takes care of equivalent PD/QPDs in vacuum.

Name

Height

Description

to ADC

from DAC

iKAGRA?

PD/QPD

Quad IQ Demodulator LSC

1U

for IMMT2T(f1), IMMT2T(f2), (2ch left)

Dsubx1(whitening)

RF PD Interface Board

1U

for IMMT2T, (3ch left)

Dsubx1(no whitening)

yes

DC PD Amplifier

1U

for IMMT1TVAC, IMMT2TVAC, (2ch left)

Dsubx1(whitening)

DC QPD Interface Board

1U

for IMMT2T_A/B

Dsubx2(whitened)

yes

DC QPD Amplifier

1U

for IMMT2TVAC_A/B

Dsubx2(whitening)

ISC racks

Stands for LSC, ASC1, ASC2 and AUX racks located between PR3 and PR2 chambers. Has servo circuits for CARM, ALSX, and ALSY. Takes care of PD/QPDs on REFL, POP, POS, POX, POY, and AS tables. Also takes care of equivalent PD/QPDs in vacuum.

Name

Height

Description

to ADC

from DAC

bKAGRAp1?

PD/QPD

Dual IQ Demodulator

1U

for REFL(f1), REFL(f2)

Dsubx1(no whitening)

yes

Dual IQ Demodulator

1U

for POP_GR(fALSY), POS_GR(fALSX)

Dsubx1(no whitening)

(by 2017.2)

Quad IQ Demodulator LSC

1U

for REFLNRSB(f3-f1), REFLNRSB(f3-f2), AS(f1), ASVAC(f1)

Dsubx2(whitening)

Quad IQ Demodulator LSC

1U

for POP(f1), POP(f2), SPOP(2*f1), SPOP(2*f2)

Dsubx2(whitening)

yes

Quad IQ Demodulator LSC

1U

for SPOS(2*f1), SPOS(2*f2), (2ch left)

Dsubx2(whitening)

Quad IQ Demodulator LSC

1U

for POX(f1), POX(f2), POY(f1), POY(f2)

Dsubx2(whitening)

Quad IQ Demodulator LSC

1U

for REFLVAC(f1), REFLVAC(f2), POPVAC(f1), POPVAC(f2)

Dsubx2(whitening)

Quad IQ Demodulator LSC

1U

for POXVAC(f1), POXVAC(f2), POYVAC(f1), POYVAC(f2)

Dsubx2(whitening)

RF PD Interface Board

1U

for REFL, REFLNRSB, AS, SPOS

Dsubx1(no whitening)

yes

RF PD Interface Board

1U

for POX, POY, POP, SPOP

Dsubx1(no whitening)

RF PD Interface Board

1U

for POP_GR, POS_GR, POXVAC, POYVAC

Dsubx1(no whitening)

RF PD Interface Board

1U

for REFLVAC, POPVAC, ASVAC, (1ch left)

Dsubx1(no whitening)

BB PD Interface Board

1U

for PLLX, PLLY, (2ch left?)

Dsubx1(no whitening)

RF QPD Interface Board

1U

for REFL_A/B, POP_A/B

Dsubx4(no whitening)

yes

RF QPD Interface Board

1U

for AS_A/B, ASVAC_A/B

Dsubx4(no whitening)

yes

RF QPD Interface Board

1U

for REFLVAC_A/B, POPVAC_A/B

Dsubx4(no whitening)

f1

RF Distribution Amplifier

1U

for f1. to Delay Line for CARM, POP LO, POX LO, POY LO, AS LO, REFLVAC LO, ASVAC LO, to RF Dist.

yes (by 2017.7)

RF Distribution Amplifier

1U

for f1. to POPVAC LO, POXVAC LO, POYVAC LO, IQ Demod ASC x 3, to RF Dist.

RF Distribution Amplifier

1U

for f1. IQ Demod ASC x 7, to RF Dist.

yes (by 2017.7)

RF Distribution Amplifier

1U

for f1. IQ Demod ASC x 2, (6ch left)

Delay Line Phase Shifter

1U

for REFL LO(f1, CARM), REFL LO(f2, CARM)

yes

Common Mode Servo Board

2U

for CARM servo

Dsubx3(no whitening)

Dsubx1

yes

Quad IQ Demodulator ASC

1U

for REFL_A QPD(f1)

Dsubx2(whitening)

yes (by 2017.7)

Quad IQ Demodulator ASC

1U

for REFL_B QPD(f1)

Dsubx2(whitening)

yes (by 2017.7)

Quad IQ Demodulator ASC

1U

for POP_A QPD(f1)

Dsubx2(whitening)

yes (by 2017.7)

Quad IQ Demodulator ASC

1U

for POP_B QPD(f1)

Dsubx2(whitening)

yes (by 2017.7)

Quad IQ Demodulator ASC

1U

for AS_A QPD(f1)

Dsubx2(whitening)

yes (by 2017.7)

Quad IQ Demodulator ASC

1U

for AS_B QPD(f1)

Dsubx2(whitening)

yes (by 2017.7)

Quad IQ Demodulator ASC

1U

for REFLVAC_A QPD(f1)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for REFLVAC_B QPD(f1)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for POPVAC_A QPD(f1)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for POPVAC_B QPD(f1)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for ASVAC_A QPD(f1)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for ASVAC_B QPD(f1)

Dsubx2(whitening)

f2

RF Distribution Amplifier

1U

for f2. to Delay Line for CARM, POP LO, POX LO, POY LO, REFLVAC LO, POPVAC LO, POXVAC LO, RF Dist.

RF Distribution Amplifier

1U

for f2. to POYVAC LO, RF Dist., (6ch left)

RF Distribution Amplifier

1U

for f2. IQ Demod ASC x 8

Quad IQ Demodulator ASC

1U

for REFL_A QPD(f2)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for REFL_B QPD(f2)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for POP_A QPD(f2)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for POP_B QPD(f2)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for REFLVAC_A QPD(f2)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for REFLVAC_B QPD(f2)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for POPVAC_A QPD(f2)

Dsubx2(whitening)

Quad IQ Demodulator ASC

1U

for POPVAC_B QPD(f2)

Dsubx2(whitening)

2*f1,2*f2

(RF splitter)

-

split 2*f1 into 2 for SPOP LO, SPOS LO

(RF splitter)

-

split 2*f2 into 2 for SPOP LO, SPOS LO

f3-f1,f3-f2

fALSX,fALSY

(RF splitter)

-

split fALSX into 2 for POP EOM, Delay Line for ALSX

(by 2017.2)

Delay Line Phase Shifter

1U

for POP_GR LO(ALSX), POS_GR LO(ALSY)

(by 2017.2)

Common Mode Servo Board

2U

for ALSX servo

Dsubx3(no whitening)

Dsubx1

(RF splitter)

-

split fALSY into 2 for POS EOM, Delay Line for ALSY

Common Mode Servo Board

2U

for ALSY servo

Dsubx3(no whitening)

Dsubx1

Phase Frequency Discriminator

1U

for ALSX, ALSY

??

??

(by 2017.2)

VCO with PLL

2U

for ALSX

??

??

(by 2017.2)

VCO with PLL

2U

for ALSY

??

??

(by 2017.2)

EX4 rack

Located close to EXC chamber. Takes care of PD/QPDs on TRX table. Also takes care of equivalent PD/QPDs in vacuum.

Name

Height

Description

to ADC

from DAC

bKAGRAp1?

PD/QPD

DC QPD Interface Board

1U

for TRX_A/B

Dsubx2(whitened)

yes

DC QPD Interface Board

1U

for TRX_GR_A/B

Dsubx2(whitened)

yes

DC QPD Amplifier

1U

for TRXVAC_A/B

Dsubx2(whitening)

DC QPD Amplifier

1U

for TRXVAC_GR_A/B

Dsubx2(whitening)

EY4 rack

Located close to EYC chamber. Components should be the same as those in EX4.

AS rack

Should be located close to OMM chamber. Takes care of PD/QPDs for OMC servo.

Name

Height

Description

to ADC

from DAC

bKAGRAp1?

PD/QPD

DC PD Amplifier

-

for OMCTVAC, (3ch left)

Dsubx1(whitening)

DC QPD Interface Board

1U

for OMCT_A/B

Dsubx2(whitened)

DC QPD Amplifier

1U

for OMCTVAC_A/B

Dsubx2(whitening)

Others

OMC Servo board

??

for OMC lock

??

??


Plan (as of 2012-08)

RFPD

KAGRA/Subgroups/MIF/AEL (last edited 2024-05-15 13:09:12 by satoru.takano)