| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
446
|
Thu Apr 24 23:50:10 2008 |
rana | Update | General | Syringes in George the Freezer | There are some packets of syringes in the
freezer which are labeled as belonging to
an S. Waldman.
|
|
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478
|
Thu May 15 10:40:21 2008 |
steve | HowTo | General | Lisa Goggin, PhD | Lisa Goggin successfully defended her thesis
on May, 13 2008
|
|
|
483
|
Fri May 16 17:27:55 2008 |
Andrey | Omnistructure | General | Toilets are broken, do not use them !!! |
[COLOR=red][SIZE=4] Both toilets in 40-meter
were constantly flushing, the leaking water |
|
|
494
|
Fri May 23 21:21:52 2008 |
Caryn | Summary | General | filtering mode cleaner with wiener filter | I tried filtering some saved MC_L data (from
Mon May19 4:30pm) with multiple MISO filters
of different orders, with various sampling |
10x |
|
546
|
Thu Jun 19 20:22:03 2008 |
rana | Update | General | FE Computer Status | I called Rolf (@LLO) who called Alex (@MIT)
who suggested that we power cycle every crate
|
|
|
551
|
Sun Jun 22 21:38:49 2008 |
rob | HowTo | General | IFO CONFIGURE |
Now that we're getting back into locking,
it's nice to have a stable alignment of the |
|
|
555
|
Mon Jun 23 21:51:19 2008 |
Alberto | Update | General | Arm Cavity Length Measurement | We measured the arm cavity lengths sweeping
the ETM mirror position and looking at the
reflected demodulated output. We excited |
|
|
556
|
Tue Jun 24 10:24:43 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Cavity Swing Measurement (2) | At the entry 555, Alberto reported the results
of the cavity length measurement using cavity
sweeping.
|
|
|
561
|
Wed Jun 25 00:35:40 2008 |
Koji | Summary | General | Optical Layout on the AP table | I have visited the AP table in order to investigate
where we are going to put the optical setup
for the abs. length meas.
|
|
|
567
|
Wed Jun 25 13:38:22 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Placement of the 700mW NPRO on the AP table | This morning I have put the 700mW NPRO on
the AP table for the abs length measurement.
|
|
|
570
|
Thu Jun 26 01:08:22 2008 |
rana | Configuration | General | Alarm Handler Revived | I have revived the Alarm Handler by turning
it on on op540m and adjusting the levels
of
|
|
|
574
|
Thu Jun 26 14:06:00 2008 |
Masha | Update | General | 500mW INNOLIGHT NPRO info | Below is the placement of 500mW INNOLIGHT
NPRO mephisto laser. It is set up on the
Symmetric Port table. [IMG]elog:574/1[/IMG] |
|
|
590
|
Sun Jun 29 02:33:28 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Optical setup (I) | I have constructed the beam injection optics
for the abs length measurement.
|
|
|
599
|
Mon Jun 30 05:33:38 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Optical setup (II) | o The position of the iris was adjusted so
as not to disturub the beam for OMCR CCD.
|
|
|
613
|
Tue Jul 1 12:51:34 2008 |
John | Summary | General | IFO alignment | Rana, Rob, Yoichi, John
The recent computer problems and MZ work |
|
|
619
|
Tue Jul 1 21:54:05 2008 |
Koji | Update | General | Re: Abs. Length Meas. setup | I tried to look for the beating in the signal
from the PD but I couldn't find. I had the
temperature of the laser initially set to |
|
|
621
|
Wed Jul 2 06:46:05 2008 |
Alberto | Configuration | General | NPRO on to warm up | This morning I turned on the NPRO on the AP
table so that it can warm up for a few hours
before I start using it today.
|
|
|
624
|
Wed Jul 2 15:14:42 2008 |
steve | Update | General | added beam traps | I placed baked razor beam trap after INJ_SM1
and flipper in the injection path on the
AP table
|
|
|
627
|
Wed Jul 2 19:15:52 2008 |
Alberto | Update | General | Status of the alignment of the NPRO beam for the Absolute Length Measurement | Today I've tried to bring the frequency of
the NPRO laser close enough to that of the
IFO beam so that the beat between the two |
|
|
628
|
Thu Jul 3 11:53:30 2008 |
Koji | Update | General | Status of the alignment of the NPRO beam for the Absolute Length Measurement | The method itself looked fine.
Use of the one arm configuration will make |
|
|
633
|
Thu Jul 3 16:57:23 2008 |
John | Summary | General | FSS_RMTEMP | The FSS room temp alarm has been beeping a
lot recently. I altered the FSS_RMTEMP alarm
levels using the
|
|
|
634
|
Thu Jul 3 18:48:09 2008 |
Alberto | Update | General | Beats of the two lasers in the absolute length measurement observed | I adjusted the alignment of the flipper mirror
as suggested by Koji making the two beam
spots match. I also aligned all the IFO mirrors |
|
|
635
|
Thu Jul 3 22:54:45 2008 |
Koji | Update | General | Beats of the two lasers in the absolute length measurement observed | Great! Conguraturation! I wish if I could
see it! It's nice if you can put the photo
or anything of the RF spectrum analyzer.
|
|
|
637
|
Mon Jul 7 11:22:02 2008 |
Alberto | Update | General | Beats of the two lasers in the absolute length measurement observed | I didn't post a screenshot from the RF SA
because I had troubles with the interface
with the computer (unfortunately the network |
|
|
638
|
Mon Jul 7 13:06:38 2008 |
Koji | Update | General | Beats of the two lasers in the absolute length measurement observed | One may need an RF filter after the mixer.
I expect the SR560 does work for this purpose.
If it does not, a passive LPF can be used.
|
|
|
643
|
Mon Jul 7 19:15:38 2008 |
Alberto | Update | General | Optics alignement on the ABS length experiment | Today I started setting up the PLL instruments
to lock the frequency of the NPRO beam to
the IFO beam. with no need of a new alignment |
|
|
650
|
Tue Jul 8 21:58:22 2008 |
alberto | Update | General | Secondaty beam aligned to the IFO beam again | Yesterday the alignment of the secondary beam
to the IFO was completely lost and today
I had to realign all the optics before I |
|
|
653
|
Wed Jul 9 17:58:19 2008 |
John | Summary | General | Illuminator alarms | This morning some time was wasted on alignment
due to the illuminators.
|
|
|
656
|
Thu Jul 10 19:12:07 2008 |
Alberto | Update | General | abs cavity length measurement experiment | Yesterday morning, when I started, I found
the IFO beam on a different position and
the beam spot at the AS port looked very |
|
|
664
|
Sun Jul 13 22:39:16 2008 |
John | Summary | General | Edited medm screens | I've edited the FSS and PMC screens so that
red boxes are shown around the appropriate
slider if a gain or offset is not within |
|
|
668
|
Mon Jul 14 19:15:43 2008 |
Alberto | Update | General | abs cavity length measurement experiment | Lately I've been dealing with the alignment
of the interferometer to have a good beam
spot at the AS port. Today the alignment |
|
|
669
|
Mon Jul 14 21:34:10 2008 |
Alberto | Update | General | abs cavity length measurement experiment | [quote]Lately I've been dealing with the alignment
of the interferometer to have a good beam
spot at the AS port. Today the alignment |
|
|
674
|
Tue Jul 15 12:23:22 2008 |
Jenne | Update | General | MC2 Watchdog tripped | Alberto, Jenne
Mode Cleaner was unlocked. We checked, and |
|
|
683
|
Wed Jul 16 16:59:07 2008 |
Alberto | Update | General | Aligment | I think the two beams are aligned again -
they both pass the Faraday, they match at
the irises and all along the optical path |
|
|
687
|
Thu Jul 17 00:59:18 2008 |
Jenne | Summary | General | Funny signal coming out of VCO | While working on calibrating the MC_F signal,
Rana and I noticed a funny signal coming
out of the VCO. We expect the output to |
|
|
706
|
Mon Jul 21 11:54:00 2008 |
Jenne | Update | General | MC Servo Board | I pulled the MC Servo Board again, to check
the components that are on the board, and
compare them with the schematics. The filters |
|
|
727
|
Wed Jul 23 21:48:30 2008 |
rob | Configuration | General | restore IFO when you're done with it |
[SIZE=3][B]when you are done with the IFO,
please click "Restore last auto-alignment"[/B][/SIZE] |
|
|
738
|
Fri Jul 25 10:48:13 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Realignment / beating / PLL trial | Alberto and Koji
o We worked for the abs length measurement |
|
|
748
|
Mon Jul 28 15:54:04 2008 |
Koji | Update | General | Abs. Len. Meas. ~ More on the beat / the PLL setup | Alberto and Koji,
Last Friday evening, Koji found that the |
|
|
774
|
Thu Jul 31 10:24:32 2008 |
Koji | Update | General | IFO status | Last night I used the Y-arm for the abs length
measurement. The Yarm was aligned by the
script.
|
|
|
776
|
Thu Jul 31 11:19:30 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Resonance search trial | Last night, I tried to find the resonance
of Yarm by sweeping the frequency of the
injection beam.
|
|
|
782
|
Sat Aug 2 12:53:43 2008 |
Koji | Update | General | Abs. Len. Meas. ~ New PLL at the PSL table | [B]Report of the work last night:[/B]
The new heterodyne interferometer on the
PSL table was built.
|
|
|
783
|
Sat Aug 2 13:07:23 2008 |
Koji | Configuration | General | The AP table cleaned | During the construction of the independent
PLL I cleaned up some of the unused optics
from the AP table. Essentially this should |
|
|
787
|
Mon Aug 4 00:37:58 2008 |
Koji | Update | General | Abs. Len. Meas. ~ RF PD at the Y end / Manual frequency scan | [B]Work log on August 2nd[/B]
o Just remind you:
|
|
|
788
|
Mon Aug 4 00:56:07 2008 |
Koji | HowTo | General | Abs. Len. Meas. ~ Auto freq scanner with GPIB | [B]Work log on August 3rd - Part1[/B]
o Yesterday I was too much tired of changing |
|
|
789
|
Mon Aug 4 05:23:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Measurement for Y-arm completed | Finally, I have completed the abs length and
g-factor measurements for Y-arm.
[COLOR=green][B]>>>GO FOR THE VENT<<<[/B][/COLOR]
|
|
|
793
|
Mon Aug 4 21:48:24 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Scan for TEM00/01/10 | [B]Work log on August 3rd - Part2[/B]
o I tried to measure the frequency of the |
|
|
794
|
Mon Aug 4 22:31:10 2008 |
Koji | Update | General | Abs. Len. Meas. ~ Simple Test for TEM01/10 split | [B]Work log on August 3rd - Part3[/B]
[B]Question:[/B]
|
|
|
795
|
Tue Aug 5 00:05:57 2008 |
Koji | Update | General | Abs. Len. Meas. ~ IFR2023A calibration | [B]Work log on August 4th[/B]
o IFR2023A (Marconi) was calibrated by the |
|
|
796
|
Tue Aug 5 02:39:55 2008 |
Koji | Configuration | General | Abs. Len. Meas. ~ Optical Layout on the AP / PSL table 2008-Aug-05 | Here are the PDF and the PNG of the AP and
PSL table layouts.
After this photo, the squeezing setup at |
|