ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
10091
|
Tue Jun 24 13:02:54 2014 |
Manasa | Update | PSL | Ringdown PD installed |
|
|
10115
|
Mon Jun 30 22:40:21 2014 |
Manasa | Update | PSL | AOM ringdown |
|
|
10140
|
Mon Jul 7 16:39:09 2014 |
manasa | Update | PSL | PMC ringdown setup | I moved stuff on the PSL table to accommodate
the PMC ringdown setup.
I used the beam that leaks from the |
|
10146
|
Mon Jul 7 21:36:33 2014 |
Jenne, rana | Update | PSL | PMC local oscillator is going wonky | The PMC local oscillator is going
a little weird dying.
We need to check out why the level |
|
10148
|
Mon Jul 7 22:18:26 2014 |
Koji | Update | PSL | PMC local oscillator is going wonky | It seems that there is no better chip in
MiniCircuits line-up with the same form factor.
|
|
10149
|
Mon Jul 7 23:19:55 2014 |
rana | Update | PSL | PMC ringdown setup |
|
|
10153
|
Tue Jul 8 15:28:32 2014 |
Koji | Update | PSL | PMC local oscillator is going wonky | Koushik and Koji try to fix the PMC oscillator
issue. So we remove the module from the rack.
This means we don't have the PMC transmission |
|
10159
|
Wed Jul 9 00:47:22 2014 |
Koji | Update | PSL | PMC local oscillator is going wonky | Koushik replaced an ERA-5 in the PC path.
We put the module back to the rack and found
no change. |
|
10160
|
Wed Jul 9 00:59:09 2014 |
rana | Update | PSL | PMC local oscillator is going wonky |
|
|
10162
|
Wed Jul 9 11:41:12 2014 |
Koushik | Update | PSL | PMC local oscillator is going wonky |
|
|
10164
|
Wed Jul 9 16:33:05 2014 |
manasa | Update | PSL | PMC ringdown setup |
|
|
10167
|
Wed Jul 9 19:53:34 2014 |
rana | Update | PSL | PMC LO monitor trend (5 years) | |
|
10172
|
Thu Jul 10 01:02:13 2014 |
rana | Update | PSL | more PMC science | Increased gain
and SNR in PMC LO monitor circuit. |
|
10173
|
Thu Jul 10 02:09:20 2014 |
Jenne | Update | PSL | FSS Fast gain set | I have put in a new nominal value for the
FSS fast gain: 21.5 dB.
There is an oscillation peak in the |
|
10203
|
Tue Jul 15 17:34:01 2014 |
manasa | Update | PSL | proposing AOM re-alignment | I am going to tweak the alignment of the
beam into the AOM (before the PMC) tomorrow
morning. If anybody has any objections to |
|
10216
|
Wed Jul 16 15:26:48 2014 |
Steve | Update | PSL | PSL Innolight controller fan is dying |
|
|
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. |
|
10220
|
Wed Jul 16 21:23:35 2014 |
Manasa | Update | PSL | PSL Innolight controller fan is dying | [Koji, Manasa]
The air flow from the dying fan was
kinda weak and we decided to give a help |
 |
10231
|
Thu Jul 17 17:19:25 2014 |
Steve | Update | PSL | PSL Innolight controller fan is dying with extra fan |
|
|
10295
|
Wed Jul 30 09:51:18 2014 |
Steve | Update | PSL | PSL Innolight controller fan is noisy |
|
|
10315
|
Fri Aug 1 00:51:07 2014 |
Koji | Update | PSL | FSSSlowServo update | FSS Slow set point to be zero
op340m:FSS>cat FSSSlowServo
#!/usr/bin/perl -w |
|
10429
|
Mon Aug 25 15:49:44 2014 |
Steve | Update | PSL | HEPA turned on | The PSL HEPA was off. It was turned on
and it is running at 30VAC now. |
|
10508
|
Tue Sep 16 10:47:52 2014 |
Steve | Update | PSL | Laser turned on | Our janitor turned off the laser
accidentally. |
|
10509
|
Tue Sep 16 14:26:45 2014 |
ericq | Update | PSL | Laser turned on |
|
|
10510
|
Tue Sep 16 16:03:36 2014 |
Koji | Update | PSL | Laser turned on |
|
|
10588
|
Thu Oct 9 13:29:14 2014 |
Jenne | Update | PSL | Power outage II & recovery |
|
|
10658
|
Fri Oct 31 15:34:47 2014 |
Steve | Update | PSL | PSL HEPAs are running again |
|
|
10724
|
Mon Nov 17 23:04:51 2014 |
Jenne | Update | PSL | Aligned PMC | I aligned the beam into the PMC, mostly
in yaw. Don't know why it drifted,
but it was annoying me, so I fixed it. |
|
10777
|
Thu Dec 11 09:11:18 2014 |
manasa | Update | PSL | PSL FSS Slow actuator | I am not sure if people have been noticing
it lately; but the slow actuator on the |
|
10800
|
Mon Dec 15 22:40:09 2014 |
rana | Summary | PSL | PMC restored | Found that the PMC gain has been
set to 5.3 dB instead of 10 dB since 9 AM
this morning, with no elog entry. |
|
10848
|
Tue Dec 30 17:26:23 2014 |
rana | Update | PSL | Relaxation Osc and the NPRO Noise eater | I wonder if the variable bump around 100
kHz can be something about the NPRO and if
the bump we see is the closed loop response |
|
10849
|
Tue Dec 30 20:35:59 2014 |
rana | Summary | PSL | PMC Tune Up |
Calibrated the Phase Adjust
slider for the PMC RF Modulation; did this
by putting the LO and RF Mod out on the TDS |
  |
10885
|
Fri Jan 9 19:18:51 2015 |
Jenne | Update | PSL | PMC realigned | A few hours ago I tweaked up the alignment
to the PMC. It was really bad in pitch,
and the transmission was down to about 0.711. |
|
10909
|
Thu Jan 15 19:01:30 2015 |
ericq | Update | PSL | PMC realigned | PMC realigned again... The transmission
was down to 0.70, and the MC was having a
hard time trying to autolock. |
|
10913
|
Fri Jan 16 18:09:09 2015 |
Jenne | Update | PSL | PMC autolocker not running? | Have we been running the PMC autolocker
lately? I can't remember, and I
also can't find where it might be running. |
|
10950
|
Wed Jan 28 17:32:26 2015 |
Koji | Update | PSL | PMC aligned | PMC aligned.
PMC Trans increased from 0.740
to 0.782 |
|
10986
|
Sat Feb 7 13:34:11 2015 |
Koji | Summary | PSL | ISS AOM driver check | I wanted to check the status of the ISS.
The AOM driver response was measured on Friday
night. |
 |
10988
|
Sun Feb 8 21:54:50 2015 |
rana | Summary | PSL | ISS AOM driver check | This is good
news. It means that the driver probably won't
limit the response of the loop - I expect |
|
11127
|
Tue Mar 10 14:47:05 2015 |
manasa | Update | PSL | PMC relocked | PMC was locked in a bad state. FSS slow
actuator adjust was at ~ -0.7 and PZT voltage
at ~45. |
|
11141
|
Fri Mar 13 23:49:28 2015 |
rana | Update | PSL | Relaxation Osc and the NPRO Noise eater | Another thought about the mystery PCDRIVE
noise: we've been thinking that it could
be some slow death inside the NPRO, but it |
|
11373
|
Wed Jun 24 08:05:43 2015 |
Steve | Update | PSL | laser turned on | The laser went off around 11am yesterday.
It was turned on |
|
11560
|
Wed Sep 2 23:50:00 2015 |
rana | Update | PSL | PMC LO dying | Let's order a pair of 35.5 MHz Wenzel
for this guy and package like Rich has done
for the WB low noise oscillators. |
|
11739
|
Mon Nov 9 09:27:44 2015 |
Steve | Update | PSL | MC is not happy | I just turned off the PSL enclousure lights.
|
|
11756
|
Thu Nov 12 09:41:02 2015 |
Steve | Update | PSL | PMC | The PMC is not happy and the ITMX UL OSEM
is moving too much
|
|
11763
|
Fri Nov 13 22:32:54 2015 |
Koji | Summary | PSL | PMC LO degraded, usual ERA-5 replacement, LO recovered | [Yutaro, Koji]
We found that the PMC LO level
was fluctuating in a strage way (it was not |
    |
11765
|
Sun Nov 15 22:43:48 2015 |
Koji | Summary | PSL | PMC LO degraded, usual ERA-5 replacement, LO recovered | I think the IMC locking was somewhat improved.
Still it is not solid as long time before.
Before the PMC fix (attachment |
 |
11768
|
Mon Nov 16 19:05:59 2015 |
Koji | Summary | PSL | PMC servo circuit review, follow up measurements | PMC follow up measurements have been done.
The servo circuit was reviewed.
Now the PMC, IMC, X/Y arms are |
|
11769
|
Mon Nov 16 21:32:49 2015 |
Koji | Summary | PSL | PMC servo circuit review, follow up measurements | The result of the precise inspection
for the PMC servo board for the 40m was done.
The record, including the |
|
11775
|
Tue Nov 17 16:21:10 2015 |
Koji | Summary | PSL | PMC servo circuit review, follow up measurements | I'm still analyzing the open loop TF
data. Here I report some nominal settings
of the PMC servo |
|
11780
|
Wed Nov 18 16:51:58 2015 |
Koji | Summary | PSL | PMC servo calibration | Summary
The PMC servo error (MIX OUT MON
on the panel) and actuation (HV OUT MON) |
|