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Entry  Thu Oct 3 12:08:47 2019, gautam, Update, General, Make the Jenne-laser setup fiber-coupled PDFR_tabletop.pdfIMG_8014.JPG
    Reply  Thu Oct 3 14:32:37 2019, rana, Update, General, Make the Jenne-laser setup fiber-coupled 
       Reply  Thu Oct 3 14:54:33 2019, Koji, Update, General, Make the Jenne-laser setup fiber-coupled 
          Reply  Thu Oct 3 21:05:04 2019, aaron, Update, General, Make the Jenne-laser setup fiber-coupled PD_response.pdf
             Reply  Thu Oct 3 23:15:39 2019, Koji, Update, General, Make the Jenne-laser setup fiber-coupled 
             Reply  Fri Oct 4 00:30:31 2019, gautam, Update, General, Make the Jenne-laser setup fiber-coupled 
                Reply  Fri Oct 4 14:25:59 2019, aaron, Update, General, Make the Jenne-laser setup fiber-coupled PD_norm.pdfPD_AB.pdfJenneAM_fiberPD_cals.pdf
Message ID: 14937     Entry time: Fri Oct 4 00:30:31 2019     In reply to: 14934     Reply to this: 14940
Author: gautam 
Type: Update 
Category: General 
Subject: Make the Jenne-laser setup fiber-coupled 

I think the metric of interest here is the consistency of the AC transimpedance of the proposed new "Reference PD" (= fiber coupled NF1611) vs the old reference (free space NF1611), since everything will be calibrated against that.

Quote:

Something still looks very wrong -- the PD is supposed to be flat out to 1GHz, and physical units pending, need food.

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