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ID	Date	Author	Type	Category	Subject	Text
2229	Tue Nov 10 19:19:57 2009	Alberto	Update	ABSL	Rotated polarizer on the PSL table, along the MC input pick off beam	Aligning the beam for the PLL of the AbsL Experiement I rotated the polarizer along the path of the MC Input pick off beam (=
2230	Tue Nov 10 19:21:53 2009	Alberto	Update	ABSL	PLL Alignment	I've been trying to lock the PLL for the AbsL Experiment but I can't see the beat (between the auxiliary NPRO and the PSL).
2238	Wed Nov 11 15:04:52 2009	Alberto	Update	ABSL	Working on the AP table	I've opened the AP table and I'm working on it.
2239	Wed Nov 11 16:18:57 2009	Alberto	Update	ABSL	Working on the AP table
2240	Wed Nov 11 17:10:51 2009	Jenne	Update	ABSL	Working on the AP table
2241	Wed Nov 11 17:33:54 2009	Koji	Update	ABSL	Working on the AP table	Yes it did. For long time, the crystal temperature C1:PSL-126MOPA_LTMP was 43~46deg. Now
2250	Thu Nov 12 10:45:36 2009	Alberto	Update	ABSL	Working on the AP table	I've opened the AP table and I'm working on it. Also auxiliary NPRO turned on and
2252	Thu Nov 12 11:34:38 2009	Alberto	Update	ABSL	Working on the AP table
2254	Thu Nov 12 12:51:45 2009	Alberto	Update	ABSL	Working on the AP table
2257	Thu Nov 12 16:53:59 2009	Alberto	Update	ABSL	Working on the AP table
2261	Thu Nov 12 18:10:27 2009	Alberto	Update	ABSL	PLL Locked	I locked the PLL and made some first measuremtns of the spectrum of the error signal. I'll post them later.
2321	Tue Nov 24 14:33:22 2009	Alberto	Update	ABSL	working on the AP table	I'm working on the AP table. I also opened the auxiliary NPRO shutter. The auxiliary beam is on its path on the AP table and PSL
2324	Tue Nov 24 19:16:02 2009	Alberto	Update	ABSL	working on the AP table
2326	Wed Nov 25 08:43:08 2009	Alberto	Update	ABSL	Working on the AP table	I'm working on the AP table. I also opened the auxiliary NPRO shutter. The auxiliary beam is on its path on the AP table and PSL
2328	Wed Nov 25 10:20:47 2009	Alberto	Update	ABSL	AbsL PLL not able to lock	Last night something happened on the beat between the PSL beam and the auxiliary NPRO beam, that spoiled the quality of the
2329	Wed Nov 25 11:02:54 2009	Alberto	Update	ABSL	AbsL PLL not able to lock
2334	Wed Nov 25 15:42:27 2009	Alberto	Update	ABSL	Working on the AP table
2337	Wed Nov 25 20:14:58 2009	Alberto	Update	ABSL	AbsL PLL not able to lock: problem fixed
2338	Wed Nov 25 20:24:49 2009	Alberto	Update	ABSL	PLL Open Loop Gain Measured	I measured the open loop gain of the PLL in the AbsL experiment. I repeated the measurement twice:
2339	Wed Nov 25 20:28:17 2009	Alberto	Update	ABSL	Stopped working on the AbsL	I closed the shutter of the NPRO for the night.
2342	Fri Nov 27 02:25:26 2009	rana	Update	ABSL	PLL Open Loop Gain Measured
2420	Tue Dec 15 21:39:34 2009	Alberto	Update	ABSL	brief summary of this afternoon's measurements	I took measurements of the open loop gain of the AbsL PLL with the old Universal PDH Box. I Also measured the
2421	Wed Dec 16 11:21:20 2009	Alberto	Update	ABSL	Universal PDH Box Servo Filters	Yesterday I measured the shape of the servo filter of both the old and the new Universal PDH boxes. Here they
2422	Wed Dec 16 11:46:25 2009	Alberto	Update	ABSL	Absl PLL Open Loop Gain	Yesterday I measured the Open Loop Gain of the PLL in the absolute length experiment. The servo I used was that of the old Universal
2423	Wed Dec 16 11:55:47 2009	rana	Update	ABSL	Universal PDH Box Servo Filters	To me, they both look stable. I guess that the phase has to go to -180
2460	Mon Dec 28 15:34:14 2009	Alberto	Update	ABSL	Working on the AP table	I opened the auxiliary laser's shutter. I'm currently working on the AP table.
2461	Mon Dec 28 18:35:27 2009	Alberto	Update	ABSL	Working on the AP table
2493	Sat Jan 9 15:02:01 2010	Alberto	Update	ABSL	PRC scanning	I scanned the PRC in the frequency range of 30-60 MHz, untill the PLL lost lock. But everything is working fine. The
2502	Mon Jan 11 11:06:53 2010	Alberto	Update	ABSL	Measurement running
2504	Mon Jan 11 16:59:14 2010	Alberto	Update	ABSL	Interferometer Busy	I'm currently running a measurement on the PRC. Please don't interfere with the IFO
2505	Mon Jan 11 19:36:13 2010	Alberto	Update	ABSL	Measurement running	Leaving for dinner. Back in ~1hr. I left a measurement running. Please don't interfere with it till I'm back. Thanks.
2506	Mon Jan 11 21:49:17 2010	Jenne	Update	ABSL	Measurement running
2508	Tue Jan 12 09:37:05 2010	Alberto	Update	ABSL	IFO available	I finished measuring the AbsL for this morning. The IFO is again available. Please don't mess up with the
2513	Wed Jan 13 12:03:00 2010	Alberto	Update	ABSL	Measurement now running. Please be careful	At the moment I'm running a measurement on the PRC and I'm planning to leave it going for the time we'll be at the 40m meeting.
2521	Mon Jan 18 18:34:01 2010	Alberto	Update	ABSL	Measurement in progress	I started a long measurement of the PRC's transmissivity. I'm leaving the lab and I'm going to be back at about 8 tonight. Please
2522	Mon Jan 18 20:58:40 2010	Alberto	Update	ABSL	Measurement in progress
2531	Tue Jan 19 12:54:39 2010	Alberto	Update	ABSL	Measurement in progress	A measurement will be running for the next hour. Please be careful.
2532	Tue Jan 19 16:21:18 2010	Alberto	Update	ABSL	Watchdogs not working and then fixed	This afternoon the watchdogs stopped working: they didn't trip when the suspension positions crossed the threshold values.
2534	Wed Jan 20 20:11:56 2010	Alberto	Update	ABSL	Some preliminary results from measuring PRC's transmissivity for an amplitude modulated beam	Here I'm posting a plot showing a set of measurements that I made in the past few days to determine the absolute length
2536	Thu Jan 21 10:31:13 2010	Koji	Update	ABSL	Some preliminary results from measuring PRC's transmissivity for an amplitude modulated beam	Nice and interesting plot.
2541	Fri Jan 22 02:54:06 2010	Alberto	Update	ABSL	Overnight measurement	I'm leaving a measurement running overnight. It should be done in about one hour. Tomorrow morning, If you need to
2543	Fri Jan 22 14:40:49 2010	Alberto	Update	ABSL	Overnight measurement
2545	Mon Jan 25 16:30:37 2010	Alberto	Update	ABSL	166 MHz sideband turned off	I turned off the modulation at 166MHZ becasue I don't need it if I'm only locking the PRC.
2546	Mon Jan 25 16:46:33 2010	Alberto	Update	ABSL	166 MHz sideband turned off
2547	Tue Jan 26 03:28:56 2010	rana	Update	ABSL	166 MHz sideband turned off	You can turn the 166 off if you want. MZ is unhappy after its turned
2550	Wed Jan 27 11:02:30 2010	Alberto	Update	ABSL	PRC Cavity Length	I fitted the data from scanning the PRC by changing the beat frequency of the auxiliary laser beam with the PSL beam. The
2553	Fri Jan 29 12:06:58 2010	Alberto	Update	ABSL	Measurement running today at lunch time	I just started a measuremtn that will be running for the next hour or so. Please be careful with the interferometer.
2554	Fri Jan 29 13:14:49 2010	Alberto	Update	ABSL	Measurement running today at lunch time
2576	Mon Feb 8 14:13:03 2010	Alberto	Update	ABSL	PLL Characterization	Lately I've been trying to improve the PLL for the AbsL experiment so that it could handle larger frequency steps and thus speed
2577	Mon Feb 8 14:56:17 2010	Alberto	Update	ABSL	Suddenly a much better alignment of PRC	I just aligned PRM and locked PRC and I noticed that SPOB is much higehr than it used to be. It's now about 1800, vs 1200

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