ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
4797
|
Wed Jun 8 23:17:25 2011 |
kiwamu | Update | LSC | DRMI output matrix diagonalization | Approximately
two weeks ago I diagonalized the LSC output
matrix for the DRMI locking. |
|
4805
|
Fri Jun 10 14:50:37 2011 |
Koji | Update | LSC | New LSC code installed | [Koji Jamie]
The new c1lsc code has been installed.
The LSC screens have also been updated (except |
|
4808
|
Mon Jun 13 12:34:21 2011 |
Jamie, Koji | Update | LSC | Updated LSC model installed | After a couple of hickups, I was able to
compile and install Koji's rework of the
LSC model. |
|
4818
|
Tue Jun 14 18:12:34 2011 |
Jamie, Kiwamu | Update | LSC | LSC seems to be fully recovered | We are now locking the arms reliably, with
reasonable transmitted power. We zeroed
the LSC offsets with script, since they were |
|
4821
|
Wed Jun 15 01:30:38 2011 |
Jamie | Summary | LSC | Schnupp asymmetry measurement | Measurement of Schnupp asymmetry
This
was done by measuring the relative phase
between the sidebands reflected from the |
    |
4834
|
Fri Jun 17 23:20:05 2011 |
Koji | Update | LSC | Some updates of the LSC screen | Some updates of the LSC screen
- Signal amplitude monitor for the
PD signals (--> glows red for more than |
|
4845
|
Mon Jun 20 18:36:49 2011 |
Suresh | Update | LSC | REFL55 PD update | [Suresh, Koji]
I used a matlab code
written by Koji to analyse the transimpedance |
|
4850
|
Tue Jun 21 20:35:50 2011 |
kiwamu | Update | LSC | a script to measure sensing matrix | Last
night I was making a script which will measure
the sensing matrix using the realtime LOCKIN |
|
4851
|
Tue Jun 21 23:29:41 2011 |
kiwamu | Update | LSC | sensing matrix measurement | I
am now measuring the sensing matrix in the
DRMI configuration. |
|
4857
|
Wed Jun 22 17:42:03 2011 |
kiwamu | Update | LSC | sensing matrix measurement | The sensing
matrix was measured in the DRMI configuration |
|
4863
|
Thu Jun 23 05:22:51 2011 |
kiwamu | Update | LSC | PRMI locking : not stable enough | I was trying |
|
4864
|
Thu Jun 23 09:46:16 2011 |
rana | Update | LSC | PRMI locking : not stable enough | All the suspensions are bad until you fix
them. But, ... there |
|
4884
|
Sat Jun 25 06:09:38 2011 |
kiwamu | Update | LSC | Friday locking | I
was able to measure the sensing matrix in
the PRMI configuration. |
|
4899
|
Tue Jun 28 15:20:08 2011 |
kiwamu | Update | LSC | sensing matrix measurement in PRMI configuration | Here is
the result of the measurement of the sensing |
 |
4905
|
Wed Jun 29 00:35:36 2011 |
Koji | Update | LSC | new LSC overview screen 80% done | New
LSC screen is 80% completed.
It is now accessible from the LSC |
|
4910
|
Wed Jun 29 12:20:53 2011 |
kiwamu | Update | LSC | sensing matrix measurement in PRMI configuration | Of course
I made a mistake in my calculation of the |
|
4912
|
Wed Jun 29 14:43:12 2011 |
Koji | Update | LSC | LSC model updated | LSC model has been updated and running,
- Now the power and signal recycling
cavity lengths are named "PRCL" |
|
4915
|
Thu Jun 30 00:58:19 2011 |
Koji | Summary | LSC | LSC whitening filter test | [Jenne, Koji]
We have tested the LSC whitening
filters. In summary, they show the transfer |
   |
4949
|
Wed Jul 6 23:03:57 2011 |
kiwamu | Update | LSC | modified locking scripts | [Jenne / Kiwamu]
Last night we modified the
locking scripts, that were called from C1IFO_CONFIGURE.adl, |
|
4951
|
Thu Jul 7 02:23:59 2011 |
Jenne | Summary | LSC | LSC Whitening Filters have been fit | I have fit all of the LSC whitening filters
using vectfit4.m
All the data is in my folder ..../users/jenne/LSC_WhiteningTest_29June2011/ |
|
4955
|
Thu Jul 7 15:34:44 2011 |
Jenne | Summary | LSC | LSC Whitening Filters have been fit |
|
|
4962
|
Tue Jul 12 11:52:54 2011 |
Jamie, Suresh | Update | LSC | LSC model updates | The LSC model has been updated:
Binary outputs to control whitening
filter switching
We now take the |
|
4984
|
Mon Jul 18 20:59:19 2011 |
Jenne | Update | LSC | Big ol' mess | [Jamie, Jenne]
We decided to take on the deceptively
easy-sounding task of checking that the LSC |
|
4988
|
Tue Jul 19 10:18:24 2011 |
rana | Update | LSC | Big ol' mess | Remember, as per our
marker board conversation, that the resistor
noise as excitation method only works if |
|
4993
|
Tue Jul 19 23:39:11 2011 |
Jamie, Jenne | Update | LSC | Major overhaul of LSC rack; binary switching of whitening filters now working | Yesterday we started going through the
LSC binary whitening switching to make sure
the new switching control in the LSC model |
|
4996
|
Wed Jul 20 06:52:01 2011 |
Suresh | Update | LSC | ABSL - PSL beat lock | The ABSL locking setup to the PSL is down.
According
the plan, I started to use the IR beam dumped
after the doubling crystal for the IR beat |
|
5040
|
Wed Jul 27 01:58:23 2011 |
kiwamu | Update | LSC | locking status | Through some locking exercise |
|
5041
|
Wed Jul 27 08:59:10 2011 |
Suresh | Update | LSC | locking status | I had to realign PSL beam into the
MC in order to reobtain the MC lock.
We lost lock at sometime around 8:30 AM on |
|
5054
|
Thu Jul 28 16:10:34 2011 |
kiwamu | Update | LSC | Both arm locked | [Nicole / Jamie / Rana / Kiwamu]
The X arm and Y arm have been
locked. |
|
5074
|
Sun Jul 31 00:05:52 2011 |
kiwamu | Update | LSC | script for loss measurement : modified | I
modified the script armloss
so that the channel names in the script are |
|
5076
|
Sun Jul 31 17:28:34 2011 |
kiwamu | Summary | LSC | Tolerance of Arm length = 2 cm | Required
arm length = 37.7974 +/- 0.02 [m] |
  |
5077
|
Sun Jul 31 22:35:35 2011 |
kiwamu | Update | LSC | arm loss measurement : done | I
did the measurement of the arm loss on both
X and Y arm by running the armLoss |
|
5081
|
Mon Aug 1 11:46:56 2011 |
rana | Summary | LSC | Tolerance of Arm length = 2 cm | wow. This Monte-Carlo matrix is one of
the most advanced optical modeling things
I have ever seen. We never had this for any |
|
5086
|
Mon Aug 1 23:26:32 2011 |
Koji | Update | LSC | REFL33 PD | Old MZ PD (InGaAs 2mm, @29.5MHz) has been
modified for REFL33.
There has been no choice for the 11MHz |
 |
5100
|
Wed Aug 3 01:30:04 2011 |
Jenne | Update | LSC | Absolute length of Xarm and Yarm measured | So far, this is just preliminary, because |
|
5101
|
Wed Aug 3 02:20:33 2011 |
Koji | Update | LSC | REFL165 PD | REFL165 PD has been made from the old 166MHz
PD.
As the required inductance was ~10nF |
  |
5112
|
Wed Aug 3 22:22:47 2011 |
Koji | Update | LSC | REFL165 PD | This REFL165 was good in terms of RF, but
I forgot to make the DC path functioning.
I will try some ideas to fix this |
|
5113
|
Wed Aug 3 22:31:38 2011 |
Koji | Update | LSC | REFL33 PD | REFL33 is ready for the installation
Characterization results of REFL33
is found in the PDF attachment. |
|
5121
|
Fri Aug 5 04:03:16 2011 |
Koji | Update | LSC | REFL165 PD | REFL165 PD was made and tested. The characterization
results are in the PDF file.
Resonance at 166.12MHz |
  |
5210
|
Fri Aug 12 16:42:51 2011 |
Yoichi | Configuration | LSC | LSC Feed Forward Compensator | I've been working on adding feed forward (FF)
paths to our LSC code.
So far, I've made a basic feed forward functionality |
 |
5218
|
Sat Aug 13 01:52:07 2011 |
Yoichi | Update | LSC | Feed forward delay | Yoichi, Koji
While I was testing the feed forward cancellation, |
 |
5273
|
Sat Aug 20 00:42:22 2011 |
Keiko | Update | LSC | Tolerance of PRC, SRC, MICH length = 2 mm ? |
|
|
5292
|
Tue Aug 23 17:51:37 2011 |
Keiko | Update | LSC | Tolerance of PRC, SRC, MICH length = 2 mm ? | Keiko,
Kiwamu
We noticed that we have used wrong |
|
5334
|
Fri Sep 2 04:41:35 2011 |
Keiko | Update | LSC | Tolerance of PRC, SRC, MICH length = 5 mm ? | Keiko,
Kiwamu |
 |
5359
|
Wed Sep 7 16:21:35 2011 |
kiwamu | Update | LSC | arm loss measurement : resluts | Here are the results of the arm loss measurements,
which I have done before the vent.
I ran the existing matlab script, |
 |
5360
|
Wed Sep 7 17:28:41 2011 |
kiwamu | Update | LSC | X arm loss measurement : not good | The measurement
itself wasn't good. |
|
5377
|
Sat Sep 10 14:55:28 2011 |
Keiko | Update | LSC | 3f demodulation board check | To
check the demodulation boards for REFL33
and REFL165, a long cable from ETMY (SUS-ETMY-SDCOIL-EXT |
|
5378
|
Sat Sep 10 16:10:42 2011 |
Keiko | Update | LSC | 3f demodulation board check | There is a LP filter just after the RF
input of an demodulation board (its schematic
can be found as D990511-00-C on DCC). I have |
|
5380
|
Sat Sep 10 18:57:52 2011 |
Keiko | Update | LSC | 3f demodulation board check | The
phase delay due to the RF input filter on
the demodulation board will not bother the |
|
5381
|
Sat Sep 10 19:03:57 2011 |
rana | Update | LSC | Y Arm work | I lined up the Y Arm for locking and then
centered the oplevs for ETMY and ITMY.
* The ITMY OL has still got the old |
|