| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
10165
|
Wed Jul 9 17:08:29 2014 |
Jenne | Update | CDS | c1auxex "Unknown Host" | c1auxex has forgotten who it is.
Slow sliders for the QPD head were not responding,
so I did a soft reboot from telnet. The machine |
|
|
10166
|
Wed Jul 9 17:34:11 2014 |
Nichin | Update | Electronics | PDFR: Beam pointing adjustments and DC measurements | [Nichin, Manasa]
AIM: |
|
|
10167
|
Wed Jul 9 19:53:34 2014 |
rana | Update | PSL | PMC LO monitor trend (5 years) | |
|
|
10168
|
Wed Jul 9 21:05:31 2014 |
manasa | Update | General | AOM and PSL Ringdown | After the fits, here are the numbers!
|
|
|
10169
|
Wed Jul 9 21:43:41 2014 |
Jenne | Update | Electronics | PMC servo card modifications in DCC | [Rana, Jenne]
We have decided to keep better |
|
|
10170
|
Wed Jul 9 23:02:33 2014 |
Harry | Update | General | Beam Waists via Beamscan | Today, I borrowed the beam profiler
from Brian (another SURF) in order to double
check my razor blade measurement figures, |
|
|
10171
|
Thu Jul 10 00:38:20 2014 |
manasa | Update | General | AOM and PSL Ringdown |
|
|
|
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 |
|
|
10174
|
Thu Jul 10 02:15:36 2014 |
Jenne | Update | LSC | QPD dark noise checkout | I have put beam dumps in front of both
of the end transmission QPDs so that I could
measure the dark noise. They are still |
|
|
10175
|
Thu Jul 10 15:27:09 2014 |
Harry | Update | General | Coupling telescope design | I designed this telescope to couple
the 1064 NPRO into the PM980 fiber, using
lenses from the Thorlabs LSB04-C kit. |
|
|
10176
|
Thu Jul 10 15:57:00 2014 |
Steve | Update | SUS | flow bench is turned off | Flow
bench effect on oplev error signal
is here. |
|
|
10179
|
Thu Jul 10 18:25:18 2014 |
Koji | Update | General | Coupling telescope design | CFC-2X-C has a FIXED focal length of 2mm,
but the collimator lens position is adjustable.
I'm not yet sure this affects your |
|
|
10180
|
Thu Jul 10 19:37:54 2014 |
Manasa | Update | General | PM980 fiber tested OK | [Harry, Manasa]
This is the update from yesterday
that Harry missed to elog. |
|
|
10181
|
Fri Jul 11 08:11:56 2014 |
Steve | Update | CDS | ETMX needs help | |
|
|
10182
|
Fri Jul 11 09:41:43 2014 |
not Koji | Update | General | Coupling telescope design |
|
|
|
10183
|
Fri Jul 11 11:51:03 2014 |
Nichin | Update | Electronics | PDFR: List of DC transimpedances | The following
values are going to be entered in the param_[PDname].yml
file for each PD. I am elogging them for |
|
|
10185
|
Fri Jul 11 15:29:26 2014 |
Harry | Update | General | Telescope With Collimator | I used a la mode to make a design
for the coupling telescope with a 3.3um target
waist, that included the collimator in the |
|
|
10186
|
Fri Jul 11 17:49:12 2014 |
Nichin | Update | Electronics | New Prologix GPIB-Ethernet controller | I have configured a NEW Prologix GPIB-Ethernet
controller to use with HP8591E Spectrum analyzer
that sits right next to the control room |
|
|
10187
|
Fri Jul 11 20:05:34 2014 |
Jenne | Update | LSC | QPD dark noise checkout | The other day, I took spectra of the Yend
transmission QPD dark noise for several different
configurations of the transimpedance gain |
|
|
10189
|
Fri Jul 11 22:28:34 2014 |
Chris | Update | CDS | c1auxex "Unknown Host" |
|
|
|
10190
|
Sun Jul 13 11:37:36 2014 |
Jamie | Update | Electronics | New Prologix GPIB-Ethernet controller |
|
|
|
10191
|
Sun Jul 13 17:06:35 2014 |
Andres | Update | 40m Xend Table upgrade | Xarm Table Upgrade Calculation and Diagrams of possible new table layout | Current Mode Matching
and Gouy Phase Between Steering Mirrors |
|
|
10192
|
Mon Jul 14 12:49:07 2014 |
Nichin | Update | Electronics | New Prologix GPIB-Ethernet controller |
|
|
|
10195
|
Mon Jul 14 16:19:41 2014 |
Andres | Update | 40m Xend Table upgrade | Took the measurement for the Mode Matching | Nick
and I measured the reflected power of the
green light in locked and unlocked. I'm working |
|
|
10196
|
Mon Jul 14 16:51:07 2014 |
Nichin | Update | Electronics | Martian table updated, Named server restarted | [Nichin, Jenne]
The martian lookup tables are located
at |
|
|
10197
|
Mon Jul 14 17:51:34 2014 |
Nichin | Update | Computer Scripts / Programs | MEDM for PDFR system | A |
|
|
10198
|
Tue Jul 15 00:16:52 2014 |
Jenne | Update | SUS | PRM significantly pitched | I'm starting to lock for the night, and
I noticed that PRM is very, very pitched.
Why? |
|
|
10200
|
Tue Jul 15 01:41:43 2014 |
Jenne | Update | LSC | Data for DARM on sqrtInv investigation | I took some data tonight for a quick look
at what combinations of DC signals might
be good to use for DARM, as an alternative |
|
|
10201
|
Tue Jul 15 11:04:05 2014 |
Steve | Update | safety | safety glasses must be worn all times! | This is the third safety glasses that I
found laying around in the IFO lab lately.
Safety |
|
|
10202
|
Tue Jul 15 12:36:17 2014 |
Nichin | Update | Electronics | RF cables rerouted |
|
|
|
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 |
|
|
10204
|
Tue Jul 15 18:26:40 2014 |
Harry | Update | General | Beam Waist, Telescope, and Fiber Coupling | Goal
To design an optical setup (telescope
/ lens) to couple 1064nm NPRO light into |
|
|
10205
|
Tue Jul 15 18:39:04 2014 |
Harry | Update | General | Weekly Plan (7.16.14) | The Past Week
Attempted to design coupling telescope, |
|
|
10206
|
Tue Jul 15 21:43:28 2014 |
Jenne | Update | LSC | QPDs back | I removed the dumps in front of the trans
QPDs. The Yend QPD needed re-normalization,
so I did that. |
|
|
10207
|
Tue Jul 15 22:23:51 2014 |
Andres | Update | 40m Xend Table upgrade | Scan the Xarm for the mode matching | Nick and I with the help of Jenne
scan the green light when the cavity is unlocked.
Nick placed a Beam dump on the IR so that |
|
|
10208
|
Wed Jul 16 01:04:09 2014 |
Jenne | Update | LSC | Data for DARM on sqrtInv investigation | I realized while I was looking at last
night's data that I had been doing CARM sweeps,
when really I wanted to be doing DARM sweeps. |
|
|
10212
|
Wed Jul 16 01:46:41 2014 |
Nichin | Update | Electronics | Test run of PDFR system | A test run was conducted on the PDFR system
last afternoon and transimpedance plots were
generated for 6 of the PDs. The laser |
|
|
10213
|
Wed Jul 16 01:54:25 2014 |
Nichin | Update | General | Work plan for next week | 1) Debugging transimpedance calculations
in the PDFR
Requires |
|
|
10214
|
Wed Jul 16 02:22:10 2014 |
Koji | Update | Electronics | Test run of PDFR system | Log-log ... |
|
|
10215
|
Wed Jul 16 07:51:52 2014 |
Akhil | Update | General | Weekly Update | Work
Done:
Solved all the timing |
|
|
10216
|
Wed Jul 16 15:26:48 2014 |
Steve | Update | PSL | PSL Innolight controller fan is dying |
|
|
|
10217
|
Wed Jul 16 17:06:41 2014 |
Nichin | Update | Computer Scripts / Programs | HP8591E spectrum analyzer remote scan | Updated script does the following:
1) Gets the highest 2 peaks
2) Puts a marker on the peaks. Now |
|
|
10218
|
Wed Jul 16 17:34:11 2014 |
Harry | Update | General | Fiber Coupled | Purpose
To couple the spare NPRO into our
Panda PM980 fibers, in order to carry out |
|
|
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 |
|
|
10221
|
Wed Jul 16 21:24:41 2014 |
Reetika | Update | Electronics | VCO Driver inside 40m |
I
found the VCO driver, that Rana asked me |
|
|
10224
|
Thu Jul 17 00:38:30 2014 |
Jenne | Update | LSC | RIN in arm transmission | [Rana, Jenne]
We had a look at the RIN of the transmission
signals TRX and TRY, when the arms were individually |
|
|
10225
|
Thu Jul 17 01:24:35 2014 |
rana | Update | IOO | MC / EOM Stability Mystery Solved! | MC loop is near
unstable. Common gain reduced. Needs more |
|
|
10226
|
Thu Jul 17 02:57:32 2014 |
Andres | Update | 40m Xend Table upgrade | FInish Calculation on Current X-arm mode Matching | Data and Calculation for the
Xarm Current Mode Matching |
|
|
10227
|
Thu Jul 17 16:07:34 2014 |
Emily | Update | Electronics | VCO Driver | I took back he VCO driver that Reetika
brought over to the 40m from the PSL lab.
|
|