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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