40m QIL Cryo_Lab CTN SUS_Lab TCS_Lab OMC_Lab CRIME_Lab FEA ENG_Labs OptContFac Mariner WBEEShop
  PSL  Not logged in ELOG logo
Message ID: 1325     Entry time: Thu Sep 5 08:05:35 2013
Author: Evan 
Type: DailyProgress 
Category: ISS 
Subject: South EOAM calibration for 0.78 mW of output power 

I used the black voltage calibrator to give the south EOAM a DC voltage, and then used the ThorLabs power meter to read off the DC power level before the PBS that used for picking off the RFPD path.

I find the volts-to-watts conversion is (5.93±0.12)×10−6 W/V. This will, of course, change if we change the input power level into the EOAM. I guess if there's a more lasting message here, it's that we've got the orientation of the QWP after the EOAM in a pretty good place, since there's no visible nonlinearity in the attached plot.

Attachment 1: eoam_cal.pdf  88 kB  | Hide | Hide all
eoam_cal.pdf
Attachment 2: code.zip  730 Bytes
ELOG V3.1.3-