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Entry  Sat Feb 12 08:08:05 2011, Suresh, Update, Electronics, REFL11 Photodiode replaced C30642_datasheet-1.pdf40mUpgradeREFL11schematic.pdfP2120572.JPGP2120565.JPGP2120571.JPG
    Reply  Sat Feb 12 23:22:21 2011, rana, Update, Electronics, REFL11 Photodiode replaced 
       Reply  Sun Feb 13 16:20:53 2011, Suresh, Update, Electronics, REFL11 Photodiode replaced 
    Reply  Sun Feb 13 02:33:37 2011, Koji, Update, Electronics, REFL11 Photodiode replaced 
Message ID: 4277     Entry time: Sun Feb 13 02:33:37 2011     In reply to: 4275
Author: Koji 
Type: Update 
Category: Electronics 
Subject: REFL11 Photodiode replaced 

Suresh is saying 375mW and 0.375mW. Let's wait for his update of the actual power.

Also he is not using EPICS, there may be the factor of two missing for now.

Quote:

I also checked to see if we have a DC output from the new PD.  With 375mW of 1064nm light incident we have 15mV of output.  Which matches well with the typical Reponsivity of 0.8V/A reported in the datasheet and our REFL11 ckt .  The schematic of the ckt is also attached here for easy reference.  The various factors are

V_dc = 0.375 mW x 0.8 V/A x 10 Ohm x 5 = 15mV

 

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