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 Thu Jun 20 17:23:40 2013, Chloe, DailyProgress, ECDL, Noise Calculations 
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 Fri Jun 21 16:47:30 2013, Chloe, DailyProgress, ECDL, Noise Calculations
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Mon Jun 24 11:14:04 2013, Chloe, DailyProgress, ECDL, Noise Calculations
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Mon Jun 24 17:48:30 2013, Chloe, DailyProgress, ECDL, Noise Calculations
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Tue Jun 25 14:14:17 2013, rana, DailyProgress, ECDL, Noise Calculations
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Tue Jun 25 17:51:34 2013, Chloe, DailyProgress, ECDL, Noise Calculations
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Wed Jun 26 17:13:21 2013, Chloe, DailyProgress, ECDL, Noise Calculations
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Fri Jun 28 14:52:11 2013, tara, Notes, ECDL, laser noise requirement for locking to a refcav
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Sun Jun 30 22:58:45 2013, Chloe, DailyProgress, ECDL, Noise Calculations
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Message ID: 1206
Entry time: Mon Jun 24 11:14:04 2013
In reply to: 1202
Reply to this: 1207
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| Author: |
Chloe |
| Type: |
DailyProgress |
| Category: |
ECDL |
| Subject: |
Noise Calculations |
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| Quote: |
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Today, I wrote up my noise calculations in a nicer way so that I have it on hand in the future. They are attached here. I found a mistake from the last elog entry, so it turns out that we are looking at a linewidth of about 440 kHz (or a PSD noise of 191 Hz/rtHz). This still meets the requirements of the experiment, and can be adjusted as necessary, since I can still increase the length of the cavity to decrease the noise.
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There was another mistake in my calculations (sorry!) so we are actually looking at a possible linewidth of about 5.3 kHz (or noise level of 0.03 Hz/rtHz). This is very low, so we are looking at using a current driver from Thorlabs since we have room in our noise budget, and this would make the assembly much easier since the parts fit together. Waiting for a response from Thorlabs about their noise levels for current drivers.
Attached are the corrected calculations. |
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