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 Mon Jul 7 16:39:09 2014, manasa, Update, PSL, PMC ringdown setup 
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 Mon Jul 7 23:19:55 2014, rana, Update, PSL, PMC ringdown setup
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Wed Jul 9 16:33:05 2014, manasa, Update, PSL, PMC ringdown setup
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Message ID: 10164
Entry time: Wed Jul 9 16:33:05 2014
In reply to: 10149
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| Author: |
manasa |
| Type: |
Update |
| Category: |
PSL |
| Subject: |
PMC ringdown setup |
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| Quote: |
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| Quote: |
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I moved stuff on the PSL table to accommodate the PMC ringdown setup.
I used the beam that leaks from the steering mirror at the PMC transmission that was dumped to a razor blade dump. I installed a Y1 to steer the beam to the ringdown PD. Power in the beam 75mW.
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I am guessing that 75 mW will burn / destroy any Thorlabs PD. I hope that mW is supposed to be uW.
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It was ~7.5mW and measured ~2V at the PD output (given its range 0-5V ) on the oscilloscope . So PD is safe ! |