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Tue Sep 18 20:32:42 2012, Manasa, Configuration, PSL, AOM installation
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Wed Sep 19 11:39:37 2012, Manasa, Configuration, PSL, AOM installation
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Wed Sep 19 15:41:27 2012, Manasa, Configuration, PSL, AOM installation
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Wed Sep 19 23:17:25 2012, rana, Configuration, PSL, AOM installation
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Thu Sep 20 01:29:04 2012, Manasa, Configuration, PSL, AOM installation
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Fri Sep 21 12:12:56 2012, Manasa, Configuration, PSL, AOM installation
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Tue Oct 2 16:15:22 2012, Manasa, Configuration, PSL, AOM installation
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Wed Oct 3 16:52:16 2012, Manasa, Configuration, PSL, AOM installation
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Wed Oct 3 23:36:54 2012, Koji, Configuration, PSL, AOM installation
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Thu Oct 4 17:54:59 2012, Manasa, Configuration, PSL, AOM installation
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Thu Oct 4 18:48:04 2012, janosch, Configuration, PSL, AOM installation
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Thu Oct 4 20:57:43 2012, Manasa, Configuration, PSL, AOM installation
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Thu Oct 4 22:16:28 2012, Koji, Configuration, PSL, AOM installation
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Fri Oct 5 18:08:17 2012, Manasa, Configuration, PSL, AOM installation
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Message ID: 7409
Entry time: Wed Sep 19 11:39:37 2012
In reply to: 7403
Reply to this: 7411
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Author: |
Manasa |
Type: |
Configuration |
Category: |
PSL |
Subject: |
AOM installation |
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Quote: |
{Jan, Manasa}
We tried towards calibrating the RF driver of the AOM. We decided to use the normal power supply for both the driver control voltage and the ALC voltage. But we could not figure out the type of the ALC port to find a compatible mating connector...it did not match with SMA, SMB or SMP. Finally I wrote to the company and got to know it is a filtered feed through. Now that we know how to control the ALC voltage, we will try looking at the signal for varying ALC voltage and see how that goes.
But when we tried to see the 2W RF signal through the RF scope, with ALC open, we found that the RF signal was distorted and did not measure 80MHz. It was lame that we did not get a snapshot 
P.S. The AOM has been left disconnected from the RF driver.
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{Jan, Manasa}
We started again to calibrate the RF driver. We connected the ALC to the power supply and observed the output RF power on the scope. The RF power did change with ALC voltage, but the RF signal still seems not to be operating at 80MHz
There is some kind of additional disturbance to the waveform at 80MHz (the frequency of just the waveform with tall peaks or small peaks alone). We made sure we get a snapshot this time!! I am not sure if it will be safe to feed this RF signal to the AOM as such

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