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40m Log |
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Mon Apr 30 21:05:32 2012, Jenne, Update, SUS, ETMY oplev power supply dead
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Mon Apr 30 21:24:43 2012, Koji, Update, SUS, ETMY oplev power supply dead
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Mon Apr 30 22:41:34 2012, Jenne, Update, SUS, ETMY oplev power supply dead
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Fri May 18 11:19:17 2012, steve, Update, SUS, ETMY oplev laser is dead
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Tue May 22 08:03:01 2012, steve, Update, SUS, ETMY oplev gets new laser
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Tue May 29 15:55:22 2012, steve, Update, SUS, ETMY oplev spot size reduced 
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Tue May 29 21:34:08 2012, Jenne, Update, SUS, ETMY oplev spot size reduced
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Wed Jun 6 14:36:58 2012, steve, Update, SUS, ETMY oplev work finished
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Mon Oct 1 17:03:01 2012, steve, Update, SUS, ETMY oplev relayed
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Message ID: 6656
Entry time: Tue May 22 08:03:01 2012
In reply to: 6649
Reply to this: 6706
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Author: |
steve |
Type: |
Update |
Category: |
SUS |
Subject: |
ETMY oplev gets new laser |
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Quote: |
The typical sign of a dying gas laser is that it glows for a few minutes only. The power supplies are fine.
Two new JDS - Uniphase 1103P lasers ( NT64-104 ) arriving on Monday, May 21
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Yesterday I swapped in new He/Ne laser with output power 3.5 mW The return spot on qpd is large ~6mm in diameter and 20,500 counts
The spot size reduction require similar layout as ETMX oplev. |