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 Wed Jan 17 23:36:12 2018, johannes, Configuration, General, AS port laser injection 
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 Wed Apr 18 22:46:23 2018, johannes, Configuration, General, AS port laser injection
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Thu Apr 19 01:04:00 2018, gautam, Configuration, General, AS port laser injection
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Thu Apr 19 20:41:09 2018, Koji, Configuration, General, Aux Laser LD dying? (AS port laser injection)
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Tue Apr 24 08:36:47 2018, johannes, Configuration, General, Aux Laser LD dying? (AS port laser injection)
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Thu May 3 10:40:43 2018, johannes, Configuration, General, AS port laser injection
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Thu May 3 12:10:12 2018, gautam, Configuration, General, AS port laser injection
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Wed May 23 00:45:18 2018, johannes, Configuration, General, AS port laser injection
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Message ID: 13555
Entry time: Wed Jan 17 23:36:12 2018
Reply to this: 13764
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| Author: |
johannes |
| Type: |
Configuration |
| Category: |
General |
| Subject: |
AS port laser injection |
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Status of the AS-port auxiliary laser injection
- Auxiliary laser with AOM setup exists, first order diffracted beam is coupled into fiber that leads to the AS table.
- There is a post-PMC picked-off beam available that is currently just dumped (see picture). I want to use it for a beat note with the auxiliary laser pre-AOM so we can phaselock the lasers and then fast-switch the phaselocked light on and off.
- I was going to use the ET3010 PD for the beat note unless someone else has plans for it.
- I obtained a fixed triple-aspheric-lens collimator which is supposed to have a very small M^2 value for the collimation on the AS table. I still have the PSL-lab beam profiler and will measure its output mode.
- Second attached picture shows the space on the AS table that we have for mode-matching into the IFO. Need to figure out the desired mode and how to merge the beams best.
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