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 Wed Nov 11 15:04:52 2009, Alberto, Update, ABSL, Working on the AP table
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 Wed Nov 11 16:18:57 2009, Alberto, Update, ABSL, Working on the AP table
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Wed Nov 11 17:10:51 2009, Jenne, Update, ABSL, Working on the AP table
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Wed Nov 11 17:33:54 2009, Koji, Update, ABSL, Working on the AP table
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Thu Nov 12 11:34:38 2009, Alberto, Update, ABSL, Working on the AP table
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Thu Nov 12 16:53:59 2009, Alberto, Update, ABSL, Working on the AP table
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Message ID: 2252
Entry time: Thu Nov 12 11:34:38 2009
In reply to: 2241
Reply to this: 2257
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| Author: |
Alberto |
| Type: |
Update |
| Category: |
ABSL |
| Subject: |
Working on the AP table |
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| Quote: |
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Yes it did.
For long time, the crystal temperature C1:PSL-126MOPA_LTMP was 43~46deg. Now it is 34deg. Try ~10deg lower temperature.
| Quote: |
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I wonder if the all the tinkering on the PSL laser done recently to revive the power have changed the PSL NPRO temperature and so its frequency. That could also explain why the beat doesn't show up at the same temperature of the NPRO as I used to operate it. Although I scanned the NPRO temperature +/- 2 deg and didn't see the beat.
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Beat found at 30MHz with auxiliary NPRO temperature of 37.19 degrees, vs. ~48 deg as it used to be.
The beat is small (-70dBm). PLL alignment has to be improved. |