| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
5491
|
Tue Sep 20 23:01:37 2011 |
Keiko | Update | IOO | AM modulation mistery | Keiko, Suresh
AM modulations are still there ... the |
|
|
5502
|
Wed Sep 21 16:44:18 2011 |
Keiko | Update | IOO | AM modulation mistery | AM
modulation depths are found to be 50 times smaller |
|
|
5520
|
Thu Sep 22 17:29:42 2011 |
Keiko | Update | IOO | AM modulation mistery | AM
modulation will add offset on SRCL signal
as well as PRCL signal. About 2% of the signal |
|
|
5538
|
Sat Sep 24 09:55:42 2011 |
Keiko | Update | IOO | AM modulation mistery | From the night day before yesterday (Sep
22nd, Thursday night. Sorry for my late update),
there |
|
|
6018
|
Sat Nov 26 19:07:40 2011 |
kiwamu | Summary | Green Locking | AM trnasfer function of the Y end laser with doublin crystal |
|
|
|
15206
|
Tue Feb 11 16:39:00 2020 |
shruti | Update | ALS | AM/PM | The results of the AM/PM measurements:
Attachment 1: Traces
of 9 AM TFs overlaid on top of each other, |
|
|
11163
|
Tue Mar 24 05:05:09 2015 |
ericq | Update | LSC | AO Path engaged | [J, Q]
Terse tonight, more verbose tomorrow.
We have succesfully achieved multiple |
|
|
11167
|
Tue Mar 24 18:22:11 2015 |
ericq | Update | LSC | AO Path engaged | For increased flatness of the AO response,
and thus less gain peaking in the CARM loop,
I reccomend turning down the MC servo VCO |
|
|
11168
|
Tue Mar 24 18:47:10 2015 |
ericq | Update | LSC | AO Path engaged | Jenne has more detailed notes about how
things went down last night, but I figure
I should write about how we got the |
|
|
10855
|
Mon Jan 5 23:36:47 2015 |
ericq | Update | IOO | AO cable reconnected |
|
|
|
15903
|
Thu Mar 11 14:03:02 2021 |
gautam | Update | LSC | AO path | There is some evidence of weird saturation
but the gain balancing (0.8dB) and orthogonality
(~89 deg) for the daughter board on the REFL11 |
|
|
15208
|
Wed Feb 12 12:13:37 2020 |
gautam | Update | LSC | AO path attempts | Summary:
The
PRFPMI can be controlled by a mix of ALS |
|
|
9912
|
Tue May 6 02:48:50 2014 |
Jenne | Update | LSC | AO path engaged with AS55 as error signal for Yarm locking | [Rana, Jenne]
This evening, we were able to
lock the Yarm through the common mode board, |
|
|
10521
|
Fri Sep 19 13:12:07 2014 |
Jenne | Update | LSC | AO path glitches |
|
|
|
10516
|
Thu Sep 18 02:42:28 2014 |
Jenne | Update | LSC | AO path partly engaged | Tonight was a night of trying to engage
the AO path. The idea was to sit at
arm powers of a few on sqrtInvTrans for CARM |
|
|
10520
|
Fri Sep 19 04:05:05 2014 |
ericq | Update | LSC | AO path partly engaged | More AO efforts. No huge news.
Came at AO from each side. For each
sign, I lost lock just a few dB from the |
|
|
15210
|
Thu Feb 13 02:07:26 2020 |
gautam | Update | LSC | AO path transfer function measurement | Summary:
I measured the transfer function
of the AO path, and think that there are |
|
|
1401
|
Fri Mar 13 20:23:37 2009 |
Yoichi | Update | LSC | AO path transfer function with X-arm locked | I measured the AO path transfer function while
the X-arm is locked with the POX PDH signal.
The POX-I signal was already connected to |
|
|
10219
|
Wed Jul 16 19:38:37 2014 |
manasa | Summary | PSL | AOM alignment issues and removed from beam path | AOM removed
from the beampath and PMC relocked. |
|
|
10168
|
Wed Jul 9 21:05:31 2014 |
manasa | Update | General | AOM and PSL Ringdown | After the fits, here are the numbers!
|
|
|
10171
|
Thu Jul 10 00:38:20 2014 |
manasa | Update | General | AOM and PSL Ringdown |
|
|
|
9328
|
Fri Nov 1 18:59:41 2013 |
Evan | Configuration | ISS | AOM cabling | [Rana, Nic, Evan]
We did some work today on getting
the AOM back up and running so that we can |
|
|
15087
|
Mon Dec 9 19:19:04 2019 |
Yehonathan | Update | PSL | AOM first order beam alignment | {Yehonathan, Rana}
In order to setup a ringdown measurement
with perfect extinction we need to align |
|
|
15089
|
Tue Dec 10 01:24:17 2019 |
Yehonathan | Update | PSL | AOM first order beam alignment |
|
|
|
15090
|
Tue Dec 10 13:26:46 2019 |
Yehonathan | Update | PSL | AOM first order beam alignment | nvm the PZT can scan over many GHz.
|
|
|
15131
|
Fri Jan 17 21:56:22 2020 |
Yehonathan | Update | PSL | AOM first order beam alignment | Today I noticed that the beam reflected
from the PMC into the RFPD has a ghost (attachment)
due to reflection from the back of the high |
|
|
11343
|
Tue Jun 2 21:22:07 2015 |
rana, koji | Configuration | IOO | AOM inserted in beam and aligned | We
spent an hour today to put the AOM back in |
|
|
7403
|
Tue Sep 18 20:32:42 2012 |
Manasa | Configuration | PSL | AOM installation | {Jan, Manasa}
We tried towards calibrating the
RF driver of the AOM. We decided to use the |
|
|
7409
|
Wed Sep 19 11:39:37 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
7411
|
Wed Sep 19 15:41:27 2012 |
Manasa | Configuration | PSL | AOM installation |
AOM driver has been removed
from the PSL table for testing. However the |
|
|
7414
|
Wed Sep 19 23:17:25 2012 |
rana | Configuration | PSL | AOM installation | Mannasa and Unni and I looked at the
RF driver for the AOM. It was fine.
With the ALC input left unconnected, |
|
|
7416
|
Thu Sep 20 01:29:04 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
7425
|
Fri Sep 21 12:12:56 2012 |
Manasa | Configuration | PSL | AOM installation | {Jan, Manasa}
We installed the AOM driver back
on the PSL table this morning. To calibrate |
|
|
7464
|
Tue Oct 2 16:15:22 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
7471
|
Wed Oct 3 16:52:16 2012 |
Manasa | Configuration | PSL | AOM installation | {Jan, Manasa}
We set start to check the performance
of the AOM on the PSL table. The AOM driver |
|
|
7474
|
Wed Oct 3 23:36:54 2012 |
Koji | Configuration | PSL | AOM installation | After the AOM work the beam wasn't well
aligned to the PMC. The PMC REFL CCD shows
large misalignment in yaw. |
|
|
7479
|
Thu Oct 4 17:54:59 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
7480
|
Thu Oct 4 18:48:04 2012 |
janosch | Configuration | PSL | AOM installation |
|
|
|
7481
|
Thu Oct 4 20:57:43 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
7482
|
Thu Oct 4 22:16:28 2012 |
Koji | Configuration | PSL | AOM installation | Do
more investigation to understand what is
causing the power reduction. |
|
|
7494
|
Fri Oct 5 18:08:17 2012 |
Manasa | Configuration | PSL | AOM installation |
|
|
|
12196
|
Fri Jun 17 22:36:11 2016 |
Johannes | Update | PSL | AOM installation | Subham and I have placed the AOM back into
the setup right in front of the PMC.
Steps undertaken: |
|
|
12198
|
Mon Jun 20 08:26:56 2016 |
Steve | Update | PSL | AOM pictures | Good job Johannes and Subham.
|
|
|
15053
|
Wed Nov 27 16:10:29 2019 |
gautam | Update | LSC | AOM reconnected | i reconnected the AOM driver to the AOM
in the main beam path (it was hijacked for
the AOM in the AUX laser path for Anjali's |
|
|
10115
|
Mon Jun 30 22:40:21 2014 |
Manasa | Update | PSL | AOM ringdown |
|
|
|
11576
|
Fri Sep 4 10:25:19 2015 |
Steve | Configuration | IOO | AOM stage is ready | New
stage can hold the correct polarization.
DRAWING |
|
|
11581
|
Mon Sep 7 18:25:16 2015 |
rana | Configuration | IOO | AOM stage is ready | The new stage missed the right height by
~2 mm. |
|
|
1446
|
Mon Mar 30 17:02:46 2009 |
Yoichi | Configuration | General | AP OSA aligned | I aligned the AP OSA, which had been mis-aligned
for a while. |
|
|
4919
|
Thu Jun 30 07:42:48 2011 |
Suresh | Update | IOO | AP Table Power levels | I measured the power in various beams on
the AP table to check and see if any beam
is having too much power. |
|
|
13767
|
Thu Apr 19 09:57:03 2018 |
gautam | Update | Wiki | AP and ETMX tables uploaded to wiki | The most up to date pictures of the AP
table and ETMX table that Steve took have
been uploaded to the relevant |
|