Reports until 13:22, Wednesday 19 February 2014
H1 ISC
keita.kawabe@LIGO.ORG - posted 13:22, Wednesday 19 February 2014 (10179)
ISCTEX: HWP just upstream of PDH and WFS was removed (Jax, Keita)

Reference: https://alog.ligo-wa.caltech.edu/aLOG/index.php?callRep=10152

We removed the HWP that should not be there.

13.5mW total coming to 80:20 splitter for PDH and WFS.

HWP in question is just upstream of this 80:20.

There is a 50:50 splitter for splitting 20% into 10% each for WFSA and WFSB.

(total 13.5mW) Before removing HWP After removing HWP
80:20 PDH path 11.9mW 12.2
80:20 WFS path 1.83 1.57
50:50 WFSA path 0.85 0.84
50:50 WFSB path 0.92 0.71