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| 40m Log |
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 Sat Apr 6 02:07:40 2019, Anjali, Update, Frequency noise measurement, Frequency noise measurement of 1 micron source
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 Wed Apr 10 00:33:09 2019, Anjali, Update, Frequency noise measurement, Frequency noise measurement of 1 micron source 
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Wed Apr 10 16:58:54 2019, rana, Update, IOO, fiber MZ for NPRO freq noise measurements
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Wed Apr 10 22:59:22 2019, gautam, Update, IOO, Spooled fiber
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Thu Apr 11 09:05:06 2019, Anjali, Update, IOO, Spooled fiber
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Fri Apr 12 01:22:27 2019, Anjali, Update, Frequency noise measurement, Frequency noise measurement of 1 micron source
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Mon Apr 15 22:39:10 2019, gautam, Update, Frequency noise measurement, Alternate setup with PSL pickoff
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Wed Apr 17 00:43:38 2019, gautam, Update, Frequency noise measurement, MZ interferometer ---> DAQ
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Thu Apr 25 03:32:25 2019, Anjali, Update, Frequency noise measurement, MZ interferometer ---> DAQ
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Thu Apr 25 10:25:19 2019, gautam, Update, Frequency noise measurement, Homodyne v Heterodyne
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Thu Apr 25 15:47:54 2019, Anjali, Update, Frequency noise measurement, Homodyne v Heterodyne
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Message ID: 14534
Entry time: Thu Apr 11 09:05:06 2019
In reply to: 14531
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| Author: |
Anjali |
| Type: |
Update |
| Category: |
IOO |
| Subject: |
Spooled fiber |
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- Attchment #1,2,3 and 4 shows the results with frequency modulation of 32 Hz, 140 Hz , 300 Hz and without frequency modulation. I am trying to understand these results better.
- A lot of fringing is there even when no modulation is applied. We hope to improve this by spooling the fiber and then encasing it in a box.
- As mentioned by Gautam, we have got a 50 m spooled fiber. Attachment #5 shows the photo of the same
| Quote: |
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Steve had showed me some stock of long fibers a while back - they are from Oz Optics, and are 50m long, and are already spooled - so barring objections, we will try the MZ setup with the spooled fiber and see if there is any improvement in the fringing rate of the MZ. Then we can evaluate what additional stabilization of the fiber length is required. Anjali will upload a photo of the spooled fiber.
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