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Size: 2333
Comment:
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← Revision 29 as of 2018-11-22 09:41:33 ⇥
Size: 2022
Comment:
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| Deletions are marked like this. | Additions are marked like this. |
| Line 27: | Line 27: |
| * Module wall will be black coated. | |
| Line 32: | Line 31: |
| * Rx PD done. | |
| Line 34: | Line 32: |
| * AOM response measurement * Done. To be checked periodically. |
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| Line 37: | Line 33: |
| * Done. * OFS board gain seems strange. |
* OFS board gain seems strange. Saturation around 13 dB. |
| Line 40: | Line 35: |
| * WSK measurement * Code for WSK measurement analysis * X-end done, but it may affected by stray light. |
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| Line 65: | Line 57: |
| * Cable arrangement | |
| Line 74: | Line 65: |
| * Initial laser power just after turned on seems too small ? |
Detailed task list of PCal is listed here.
X-end PCal
Urgent
- Excitation port noise
2nd-urgent
- Stray light
- Tx PDs detect light even if the AOM input is almost 0.
- Put dumpers
~11/3 first test to inject PCal laser to the X-end test mass
- Rx module alignment
- QPD alignment
- OL/CL TF measurement
- OFS board gain seems strange. Saturation around 13 dB.
- Strange bump in AA/AI (~6 kHz)
~X-arm commissioning line injection
- BPM test
- Preparation for X-arm commissioning calibration line injection
- Guardian
~O3
- RPN measurement
- Laser noise measurement
- Harmonics noise measurement
- VGA noise measurement
- Excitation noise measurement
- DGS part seems not noisy, but cause large noise when connected to the OFS.
- Peak stability test
- Shot noise
- Offset input noise
- Noise model
- Unstable D-sub connection at Tx module
- Some connectors are dead.
- OFS upgrade
- Operation tool preparation
Bonus work
- AOM current
- Sometimes over 0.5 V ?
- Take care about grounding
Pre-categorization
Y-end PCal
- Periscope re-installation
Laser power calibration setting in Toyama Univ.
~Y-arm commissioning
- Prepare cross calibration setup and calibrate an integrating sphere