|
Size: 5754
Comment:
|
Size: 5996
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 77: | Line 77: |
| || PD Interface Board || 1Ux?? || how many?? for REFL, REFL_NRSB, POP, SPOP, SPOS, POX, POY, POP_GR, POS_GR|| || QPD Interface Board || 1Ux?? || how many?? for IP_A/B, IMCR_A/B, IMCT_A/B, IMMT2T_A/B|| |
|| 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|| |
| Line 81: | Line 81: |
| Located close to EXC chamber. | Located close to EXC chamber. Takes care of PD/QPDs on TRX table. || Name || Height || Description || |||||||| || PD Interface Board || 1Ux?? || how many?? for TRX, TRX_GR|| || QPD Interface Board || 1Ux?? || how many?? for TRX_A/B, TRX_GR_A/B|| |
Analog Electronics for Interferometer Control
Electronics
Name |
Height |
Schematics |
Power |
Description |
RF PD in air |
- |
+-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 |
- |
from Interface |
|
|
TTFSS Interface |
- |
+-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 |
+-18V |
4 LOs for 4 demodulation channels |
|
Quad IQ Demodulator ASC |
1U |
+-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 |
? |
|
|
|
References: awiki/RfDesign, awiki/LSC_Photodetectors
Photodetector list
List of the Interferometer Detection Ports JGW-T1402982
For each rack
KAGRA ISC Electrical Components Layout JGW-D1402986
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 |
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 REFL x 3, (3ch left) |
Delay Line Phase Shifter |
1U |
for TTFSS LO (Refcav lock) |
Delay Line Phase Shifter |
1U |
for CM board LO (IMC LSC) |
Quad IQ Demodulator LSC |
1U |
for IMCR PD (fIMC), (3ch left). |
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) |
RF Oscillator Source |
? |
for f1 sideband |
RF Distribution Amplifier |
1U |
for f1. to PSL EOM, to LSC racks, to Frequency Doubler, to Differential Frequency Generator, (4ch left) |
Frequency Doubler |
1U |
f1 to 2*f1 for ISC racks |
Diff. Freq. Generator |
?? |
make f3-f1 for ISC racks |
RF Oscillator Source |
? |
for f2 sideband |
RF Distribution Amplifier |
1U |
for f2. to PSL EOM, to LSC racks, to Frequency Doubler, to Differential Frequency Generator, (4ch left) |
Frequency Doubler |
1U |
f1 to 2*f1 for ISC racks |
Diff. Freq. Generator |
?? |
make f3-f2 for ISC racks |
RF Oscillator Source |
? |
for fALSX sideband for ISC racks |
RF Oscillator Source |
? |
for fALSY sideband for ISC racks |
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 |
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 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 |
EX4 rack
Located close to EXC chamber. Takes care of PD/QPDs on TRX table.
Name |
Height |
Description |
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)