| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
17228
|
Thu Nov 3 20:07:01 2022 |
Anchal | Summary | BHD | AS1 coil balancing required | [Anchal, Koji]
The LO phase lock that was achieved
lasts for a short time because as soon as |
|
|
16801
|
Thu Apr 21 20:33:31 2022 |
Koji | Update | BHD | AS1 UR OSEM problem localized in the chamber | Tega and Paco reported that the UR OSEM
of AS1 lost the response.
- I have checked the LED MON (left) |
|
|
16803
|
Fri Apr 22 12:03:09 2022 |
Tega | Update | BHD | AS1 UR OSEM problem localized in the chamber | [JC, Tega, Ian, Paco]
We found that the UR cable was
clamped to the table by one of the ITMY OPLEV |
|
|
16578
|
Tue Jan 11 18:40:25 2022 |
Anchal | Summary | BHD | AS1 Sat Amp has a PCB issue | AS1
Sat Amp (S2100741) has a critical PCB
issue on it's Ch5-8 board S2100548. This |
|
|
16579
|
Thu Jan 13 09:48:41 2022 |
Anchal | Summary | BHD | AS1 Sat Amp fixed | I fixed the issue in AS1
Sat Amp (S2100741) by using a razor blade.
I cut the short between the two places, cleaned |
|
|
16565
|
Mon Jan 10 17:04:47 2022 |
Anchal | Update | BHD | AS1 Sat Amp CH2 had offset | We found that there was a small offset
(~300 mV) at TP6 and TP8, in PD2 circuit
(CH2 of the board). I replaced U3 AD822ARZ |
|
|
16580
|
Thu Jan 13 12:24:08 2022 |
Anchal | Summary | BHD | AS1 SD and LR magnets broke | [Anchal (vacuum work), Paco (outside)]
After the AS1 Sat Amp fix (40m/16579),
we today were able to tune all OSEMs to the |
|
|
7665
|
Fri Nov 2 20:41:53 2012 |
Jenne | Update | Alignment | AS, REFL camera shots | These don't show anything too interesting,
but we're including them to show where the
beams are right now on the cameras, so we |
|
|
7666
|
Fri Nov 2 21:40:04 2012 |
Manasa | Update | Alignment | AS, REFL camera shots |
To get the camera shot of AS,
Y1 mirror on the path was replaced by a 99% |
|
|
7668
|
Mon Nov 5 09:53:35 2012 |
Jenne | Update | Alignment | AS, REFL camera shots | Today's photos:
AS:
|
|
|
11814
|
Wed Nov 25 22:59:42 2015 |
yutaro | Update | LSC | AS table optics realignment | I slightly changed the orientation
of a few mirrors on AS table that
are used to make the AS light get into PDs, |
|
|
7689
|
Thu Nov 8 20:11:54 2012 |
Jenne | Update | Alignment | AS steering moved out of POY's way, 2 green beams onto PSL table | [Jenne, Jamie, Manasa, Ayaka]
Flipped mount of OM2, moved OM2 behind |
|
|
1650
|
Thu Jun 4 01:32:20 2009 |
rob | Configuration | LSC | AS port mode scan | Here is a set of mode scans of the AS port,
using the OMC as a mode scanner. The
plot overlays various configurations of the |
|
|
13555
|
Wed Jan 17 23:36:12 2018 |
johannes | Configuration | General | AS port laser injection | Status of the AS-port auxiliary laser injection
Auxiliary laser with AOM
setup exists, first order diffracted beam |
|
|
13764
|
Wed Apr 18 22:46:23 2018 |
johannes | Configuration | General | AS port laser injection | Using Gautam's Finesse file and the
cad files for the 40m optical setup I propagated
the arm mode out of the AS port. For the |
|
|
13766
|
Thu Apr 19 01:04:00 2018 |
gautam | Configuration | General | AS port laser injection | For the arm cavity ringdowns, I guess we
don't need AS55/AS110 (although I think
the camera will still be useful for alignment). |
|
|
13810
|
Thu May 3 10:40:43 2018 |
johannes | Configuration | General | AS port laser injection | Instead of trying to couple the fiber output
into the interferometer, I'm doing the
reverse and maximize the amount of interferometer |
|
|
13811
|
Thu May 3 12:10:12 2018 |
gautam | Configuration | General | AS port laser injection | I think we need AS55 for locking the configuration
Jon suggested - AS55 I and Q were used to
lock the SRMI previously, and so I'd |
|
|
13881
|
Wed May 23 00:45:18 2018 |
johannes | Configuration | General | AS port laser injection | I was planning to set up the additions
to the AS table that are outlined in Attachment
#1. Unfortunately the beam is too large for |
|
|
16827
|
Tue May 3 21:05:23 2022 |
yuta | Update | BHD | AS path alignment, removing a lot of green stuff | [Tega, Yehonathan, Koji, Yuta]
We tried to align AS path this afternoon. |
7x |
|
16848
|
Thu May 12 19:55:01 2022 |
Tega | Update | BHD | AS path alignment | [Yuta, Tega]
We finally managed to steer the
AS beam from ITMY chamber, through BS and |
|
|
13241
|
Tue Aug 22 16:56:54 2017 |
johannes | Summary | General | AS laser existing components inventory | I surveyed the lab today to see what we
may need to buy for the AS laser setup.
We |
|
|
12563
|
Fri Oct 14 18:33:55 2016 |
gautam | Update | General | AS clipping investigations | [steve,ericq,gautam]
In the afternoon, we took the heavy
door off the OMC chamber as well, such that |
7x |
|
8118
|
Wed Feb 20 19:20:50 2013 |
Evan | Update | Alignment | AS camera alignment | [Manasa, Evan]
Manasa and I are trying to get the
AS beam onto the AS camera with a focusing |
|
|
7404
|
Tue Sep 18 22:06:21 2012 |
Mike J. | Update | Electronics | AS beam scan plots and chi-squared | Results of the Razor Blade Beam Scan
The horizontal blade test measured
the beam intensity as a razor blade passed |
|
|
7386
|
Fri Sep 14 01:35:55 2012 |
Mike J. | Update | Electronics | AS beam scan PLOTS | |
|
|
7372
|
Tue Sep 11 17:17:51 2012 |
Eric Q., Mike J. | Configuration | Electronics | AS beam scan | We conducted a beam scan on the AP table
of the AS beam. We used a lens to focus the
beam onto a power meter, and slowly moved |
|
|
7377
|
Wed Sep 12 20:08:51 2012 |
ericq | Update | Electronics | AS beam scan |
|
|
|
7380
|
Thu Sep 13 19:59:43 2012 |
Mike J. | Update | Electronics | AS beam scan | **EDIT:** Mixed up X and Y. Beam is
3.5844 |
|
|
8347
|
Tue Mar 26 00:06:37 2013 |
Jenne | Update | Locking | AS beam put back on PD | [Jenne, Gabriele]
We aligned MICH (first locked Yarm,
but didn't optimize since we don't have TRY, |
|
|
12566
|
Mon Oct 17 22:45:16 2016 |
gautam | Update | General | AS beam centered on all OMs | [ericq, lydia, gautam]
IMC realignment, Arm
dither alignment |
7x |
|
6884
|
Wed Jun 27 16:23:12 2012 |
yuta | Update | IOO | AS and REFL on AP table aligned | I touched steering mirrors for AS and REFL
at AP table.
AS beam and REFL beam now hits cameras |
|
|
7674
|
Tue Nov 6 17:07:04 2012 |
jamie | Update | Alignment | AS and REFL | AS: |
|
|
17320
|
Mon Nov 28 20:14:27 2022 |
Anchal | Update | ASC | AS WFS proposed path to IMC WFS heads | In Attachment 1, I give a plan for the
proposed path of AS beam into the IMC WFS
heads to use them temporarily as AS WFS. |
|
|
17408
|
Sat Jan 21 15:32:40 2023 |
Anchal | Update | ASC | AS WFS path nominally set | I've completed the beam redirection
path for AS beam to WFS heads in a nominal
way. By that I mean that all mirrors (M1, |
|
|
17412
|
Mon Jan 23 20:50:58 2023 |
Anchal | Update | ASC | AS WFS path beam profiled | I measured the expected beam profile by
WFS photodiodes by measuring the beam when
mode cleaner was unlocked from the point |
|
|
17416
|
Tue Jan 24 21:04:59 2023 |
Anchal | Update | ASC | AS WFS path beam profiled | I completed the mode matching calculation
today and found good solution with 360.6
mm ROC PLCX lens at -1.2 m from z=0 point. |
|
|
16280
|
Mon Aug 16 23:30:34 2021 |
Paco | Update | CDS | AS WFS commissioning; restarting models | [koji, ian, tega, paco]
With the remote/local assistance
of Tega/Ian last friday I made changes on |
|
|
16267
|
Mon Aug 2 16:18:23 2021 |
Paco | Update | ASC | AS WFS MICH commissioning | [anchal, paco]
We picked up AS WFS comissioning
for daytime work as suggested by gautam. |
|
|
8971
|
Tue Aug 6 12:43:23 2013 |
Alex Cole | Configuration | Electronics | AS Table and Rack 1Y1 Additions | For the photodetector frequency response
project, I finished the construction of our
baluns chassis and mounted it in rack 1Y1 |
|
|
8859
|
Tue Jul 16 17:02:41 2013 |
Alex Cole | Configuration | Electronics | AS Table Additions | [Eric, Alex]
We added our reference photodetector
(Newport 1611, REF DET) to the southern edge |
|
|
8862
|
Wed Jul 17 11:13:36 2013 |
Alex Cole | Configuration | Electronics | AS Table Additions | [Eric, Alex]
For the RFPD frequency response project,
we routed the fiber that will connect our |
|
|
8863
|
Wed Jul 17 16:15:42 2013 |
Alex Cole | Configuration | Electronics | AS Table Additions | [Eric, Alex]
We decided that the POY Table would
be a better home for our REF DET (Newport |
|
|
4521
|
Wed Apr 13 23:32:07 2011 |
Aidan, Jamie | Configuration | LSC | AS PD and Camera installed | I spent some time tracking down the AS
beam which had vanished from the AP table.
Eventually, by dramatically mis-aligning |
|
|
4536
|
Fri Apr 15 22:57:38 2011 |
Aidan, Jamie | Configuration | LSC | AS PD and Camera installed | AS port ITMX YAW range where AS beam
was visible = [-1.505, -1.225] - these extrema
put the beam just outside of some aperture |
|
|
1223
|
Mon Jan 12 18:53:03 2009 |
Yoichi | Update | LSC | AS CCD centering and ASDD demod phase | After Rob's AS beam work, I centered the beam
on the AS CCD.
I also optimized the ASDD demod-phase for |
|
|
1225
|
Tue Jan 13 18:59:09 2009 |
Kakeru | Update | LSC | AS CCD centering and ASDD demod phase | I tuned the demod-phase for PRCL and SRCL
hand-off, but it have not been optimized
enoughly.
|
|
|
1241
|
Wed Jan 21 16:18:17 2009 |
Kakeru | Update | LSC | AS CCD centering and ASDD demod phase | I tuned the DD demod-pahse for SRM.
It was tuned as the error singnal is to be
0 when the cavity is locked.
|
|
|
1242
|
Wed Jan 21 22:53:08 2009 |
rana | Update | LSC | AS CCD centering and ASDD demod phase | Just my opinion, but I think all we want out
of the DD signals is something to control
the DRM
|
|
|
7353
|
Thu Sep 6 18:49:30 2012 |
Jenne | Update | RF System | AS 55 may be broken | I was going to lock MICH, but I don't see
anything on dataviewer for either AS55Q or
ASDC. I went out onto the table, and |
|