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Thu Dec 1 20:20:15 2016, gautam, Update, IMC, IMC loss measurement plan
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Fri Dec 2 16:40:29 2016, gautam, Update, IMC, 24V fuse pulled out
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Mon Dec 5 01:58:16 2016, gautam, Update, IMC, IMC ringdowns 
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Mon Dec 5 15:55:25 2016, gautam, Update, IMC, IMC ringdowns 7x
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Mon Dec 5 19:29:52 2016, gautam, Update, IMC, IMC ringdowns
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Tue Dec 6 00:43:41 2016, gautam, Update, IMC, more IMC ringdowns
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Wed Dec 7 11:52:48 2016, ericq, Update, IMC, Partial IMC ringdowns 
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Thu Dec 8 19:01:21 2016, rana, Update, IMC, Partial IMC ringdowns
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Sun Dec 2 17:26:58 2018, gautam, Update, IMC, IMC ringdown fitting   
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Fri Dec 7 12:51:06 2018, gautam, Update, IMC, IMC ringdown fitting  
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Message ID: 12660
Entry time: Fri Dec 2 16:40:29 2016
In reply to: 12655
Reply to this: 12663
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Author: |
gautam |
Type: |
Update |
Category: |
IMC |
Subject: |
24V fuse pulled out |
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I've pulled out the 24V fuse block which supplies power to the AOM RF driver. The way things are set up on the PSL table, this same voltage source powers the RF amplifiers which amplify the green beatnote signals before sending them to the LSC rack. So I turned off the green beat PDs before pulling out the fuse. I then disconnected the input to the RF driver (it was plugged into a DS345 function generator on the PSL table) and terminated it with a 50 ohm terminator. I want to figure out a smart way of triggering the AOM drive and recording a ringdown on the scope, after which I will re-connect the RF driver to the DS345. The RF driver, as well as the green beat amplifiers and green beat PDs, remain unpowered for now... |