Differences between revisions 41 and 42
⇤ ← Revision 41 as of 2014-11-14 13:57:53 →
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Editor: YutaMichimura
Comment:
← Revision 42 as of 2014-11-14 15:15:57 → ⇥
Size: 7699
Editor: YutaMichimura
Comment:
Deletions are marked like this. Additions are marked like this.
Line 60: Line 60:
|| Diff. Freq. Generator || ?? || make f3-f1 for ISC racks ||
Line 65: Line 64:
|| Diff. Freq. Generator || ?? || make f3-f2 for ISC racks ||
Line 68: Line 66:
|| Diff. Freq. Generator || ?? || make f3-f1 for ISC racks ||
|| Diff. Freq. Generator || ?? || make f3-f2 for ISC racks ||
Line 88: Line 88:
|| Delay Line Phase Shifter || 1U || for CM board LO(CARM) || || Delay Line Phase Shifter || 1U || for CM board LO(CARM)||
Line 96: Line 96:
Line 98: Line 97:
|| Quad IQ Demodulator ASC || 1U || for REFL_A QPD(f2)||
|| Quad IQ Demodulator ASC || 1U || for REFL_B QPD(f2)||
|| Quad IQ Demodulator ASC || 1U || for POP_A QPD(f2)||
|| Quad IQ Demodulator ASC || 1U || for POP_B QPD(f2)||
Line 100: Line 102:
|| Delay Line Phase Shifter || 1U || for CM board LO(ALSX)||
|| Common Mode Servo Board || 1U || for ALSX servo||
|| Delay Line Phase Shifter || 1U || for CM board LO(ALSY)||
|| Common Mode Servo Board || 1U || for ALSY servo||
|| PLL Servo Board || ? || || || ||
|| PLL Servo Board || ? || || || ||
Line 105: Line 113:
|||||||| ||||||PD/QPD||

Analog Electronics for Interferometer Control

Electronics

Name

Height

Schematics

Power

Description

RF PD in air

-

JGW-D1201280

+-18V

has DC, RF HI, RF LOW outputs

BB PD in air

-

broadband (for 2*f1, 2*f2 and nonresonant SB ?)

RF QPD in air

-

should have 4 RF outputs, 4 DC outputs

DC PD in air

-

should have DC output

DC QPD in air

-

should have 4 DC outputs

RF PD for green in air

-

BB can be OK

DC PD for green in air

-

DC QPD for green in air

-

TTFSS

-

JGW-D1301823

from Interface

TTFSS Interface

-

JGW-D1301831

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

PMC Servo Board

-

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

may need interface board

RF Oscillator Source

?

Agilent

AC

for the time being

Frequency Doubler

1U

for sideband power monitor

Difference Frequency Generator

for nonresonant sidebands

Phase Frequency Discriminator

1U

for ALS

RF Distribution Amplifier

1U

+-17V,+-24V

split into 8

Delay Line Phase Shifter

1U

+15V?

1 input, 1 output?

Quad IQ Demodulator LSC

1U

JGW-D1402413

+-18V

4 LOs for 4 demodulation channels

Quad IQ Demodulator ASC

1U

JGW-D1402413

+-18V

1 LO for 4 demodulation channels

Common Mode Servo Board

1U

+-17V,+-24V

2 inputs, slow and fast outputs

PD Interface Board

1U

+-18V

for ribbon cables from RF PDs. 8 inputs?

QPD Interface Board

1U

+-18V?

for ribbon cables from RF QPDs. 8 inputs?

ISS Board

?

PLL Servo Board

?

OMC Servo Board

?

Photodetector list

For each rack

IO rack

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, IMC TRANS, IMMT1, and IMMT2 tables.

Name

Height

Description

PD/QPD

Quad IQ Demodulator LSC

1U

for IMCR(fIMC), IMMT2T(f1), IMMT2T(f2), (1ch left)

PD Interface Board

1Ux??

how many?? for PMCR, PMCT, REFCAVR, REFCAVT, IMCR, IMCT, IMMT1T, IMMT2T

QPD Interface Board

1Ux??

how many?? for IP_A/B, IMCR_A/B, IMCT_A/B, IMMT2T_A/B

fIMC

RF Oscillator Source

?

for fIMC sideband (also for Refcav)

RF Distribution Amplifier

1U

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

Delay Line Phase Shifter

1U

for TTFSS LO(Refcav lock)

Delay Line Phase Shifter

1U

for CM board LO(IMC LSC)

Common Mode Servo Board

1U

for IMC servo

Quad IQ Demodulator ASC

1U

for IMCR_A QPD(fIMC)

Quad IQ Demodulator ASC

1U

for IMCR_B QPD(fIMC)

f1

RF Oscillator Source

?

for f1 sideband

RF Distribution Amplifier

1U

for f1. to PSL EOM, to LSC racks, to Frequency Doubler, to Diff. Freq. Generator, to IQ Demod x 1, (3ch left)

Frequency Doubler

1U

f1 to 2*f1 for ISC racks

f2

RF Oscillator Source

?

for f2 sideband

RF Distribution Amplifier

1U

for f2. to PSL EOM, to LSC racks, to Frequency Doubler, to Diff. Freq. Generator, to IQ Demod x 1, (3ch left)

Frequency Doubler

1U

f1 to 2*f1 for ISC racks

f3

RF Oscillator Source

?

for f3 (split into 2 and send them to Diff. Freq. Generators)

Diff. Freq. Generator

??

make f3-f1 for ISC racks

Diff. Freq. Generator

??

make f3-f2 for ISC racks

fALSX,fALSY

RF Oscillator Source

?

for fALSX sideband for ISC racks

RF Oscillator Source

?

for fALSY sideband for ISC racks

Others

ISS Board

??

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.

Name

Height

Description

PD/QPD

Quad IQ Demodulator LSC

1U

for REFL(f1), REFL(f2), REFL_NRSB(f3-f1), REFL_NRSB(f3-f2)

Quad IQ Demodulator LSC

1U

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

Quad IQ Demodulator LSC

1U

for SPOS(2*f1), SPOS(2*f2), POP_GR(fALSY), POS_GR(fALSX)

Quad IQ Demodulator LSC

1U

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

Quad IQ Demodulator LSC

1U

for AS(f1), (3ch left)

PD Interface Board

1Ux??

how many?? for REFL, REFL_NRSB, POP, SPOP, SPOS, POX, POY, AS, OMCT, POP_GR, POS_GR

QPD Interface Board

1Ux??

how many?? for REFL_A/B, POP_A/B, AS_A/B, OMCT_A/B

f1

Delay Line Phase Shifter

1U

for CM board LO(CARM)

Common Mode Servo Board

1U

for CARM servo

Quad IQ Demodulator ASC

1U

for REFL_A QPD(f1)

Quad IQ Demodulator ASC

1U

for REFL_B QPD(f1)

Quad IQ Demodulator ASC

1U

for POP_A QPD(f1)

Quad IQ Demodulator ASC

1U

for POP_B QPD(f1)

Quad IQ Demodulator ASC

1U

for AS_A QPD(f1)

Quad IQ Demodulator ASC

1U

for AS_B QPD(f1)

f2

Quad IQ Demodulator ASC

1U

for REFL_A QPD(f2)

Quad IQ Demodulator ASC

1U

for REFL_B QPD(f2)

Quad IQ Demodulator ASC

1U

for POP_A QPD(f2)

Quad IQ Demodulator ASC

1U

for POP_B QPD(f2)

fALSX,fALSY

Delay Line Phase Shifter

1U

for CM board LO(ALSX)

Common Mode Servo Board

1U

for ALSX servo

Delay Line Phase Shifter

1U

for CM board LO(ALSY)

Common Mode Servo Board

1U

for ALSY servo

PLL Servo Board

?

PLL Servo Board

?

EX4 rack

Located close to EXC chamber. Takes care of PD/QPDs on TRX table.

Name

Height

Description

PD/QPD

PD Interface Board

1Ux??

how many?? for TRX, TRX_GR

QPD Interface Board

1Ux??

how many?? for TRX_A/B, TRX_GR_A/B

EY4 rack

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

Plan (as of 2012-08)

  • Test fabrication of RF PD (by the end of September ?, test in October)
  • Compile other analog circuit designs from LIGO into KAGRA spec. (by the end of October)
  • Design frequency stabilization related circuits with NAOJ group (by the end of FY2012)

RFPD

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