|
Size: 2851
Comment:
|
Size: 3107
Comment:
|
| Deletions are marked like this. | Additions are marked like this. |
| Line 29: | Line 29: |
| * Ref: [[https://awiki.ligo-wa.caltech.edu/aLIGO/RfDesign|awiki/RfDesign]] | * Ref: [[https://awiki.ligo-wa.caltech.edu/aLIGO/RfDesign|awiki/RfDesign]], [[https://awiki.ligo-wa.caltech.edu/aLIGO/LSC_Photodetectors|awiki/LSC_Photodetectors]] == Photodetector list == * Ref: List of the Interferometer Detection Ports [[http://gwdoc.icrr.u-tokyo.ac.jp/cgi-bin/DocDB/ShowDocument?docid=2982|JGW-T1402982]] |
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 might 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 |
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? |
ISS Board |
? |
|
|
|
PLL Servo Board |
? |
|
|
|
OMC Servo Board |
? |
|
|
|
Photodetector list
Ref: List of the Interferometer Detection Ports JGW-T1402982
For each rack
KAGRA ISC Electrical Components Layout JGW-D1402986
IO rack
Name |
Height |
Description |
RF Oscillator Source |
? |
for f_IMC sideband (also for RC) |
RF Oscillator Source |
? |
for f_1 sideband |
RF Oscillator Source |
? |
for f_2 sideband |
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)