| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
372
|
Fri Aug 23 11:11:44 2019 |
shruti | Optics | Characterization | Finding the curvature bottom | I attempted to fit the data taken
by Koji of the beam spot precession at the
CCD in order to find the location of the |
|
|
373
|
Thu Aug 29 11:51:49 2019 |
shruti | Optics | Characterization | Wedging of the debonded PZTs - Calculation | Using the measurements of PZTs 12,13 taken
by Stephen, I estimated the wedging angle
and orientation following Section 2.3.1 of |
|
|
374
|
Thu Sep 5 15:40:42 2019 |
shruti | Optics | Configuration | PZT Sub-Assembly | Aim: To find the combinations
of mounting prism+PZT+curved mirror to build
two PZT sub-assemblies that best minimises |
|
|
286
|
Sat Jul 29 18:44:38 2017 |
rana | Electronics | Characterization | PDH amp | attachment 6: DCPD preamp looks like the
opamp is wired for positive feedback? |
|
|
393
|
Mon Sep 28 16:03:13 2020 |
rana | General | General | OMC Beam Dump Production Cure Bake |
are there any measurements of the BRDF
of these things? I'm curious how much
light is backscattered into the incoming |
|
|
27
|
Tue Oct 16 14:50:54 2012 |
jamie, jeff | General | General | OMC breadboard/plate measurement dimensions | We have measured the dimensions and mass
of the OMC glass plates/breadboards:
|
|
|
405
|
Tue Nov 24 10:45:07 2020 |
gautam | Electronics | Characterization | The dark noise of the Q3000 QPDs | I see that these measurements are done
out to 100 kHz - I guess there is no reason
to suspect anything at 55 MHz which is where |
|
|
293
|
Thu May 3 21:45:58 2018 |
awade | General | Loan / Lending | Borrowed toaster oven | I’ve borrowed the black and decker
toaster oven to dry some sonicated parts.
It is temporarly located in the QIL lab. |
|
|
4
|
Wed Jun 20 20:37:45 2012 |
Zach | Optics | Configuration | Topology / parameter selection | EDIT (ZK): All the plots here were generated |
8x |
|
5
|
Thu Jun 21 03:07:27 2012 |
Zach | Optics | Configuration | Parameter selection / mode definition | EDIT 2 (ZK): As with the |
|
|
6
|
Fri Jun 29 11:26:04 2012 |
Zach | Optics | Characterization | RoC measurement setup | Here is the proposed RoC measurement
setup. Koji tells me that this is referred
to as "Anderson's method". |
|
|
9
|
Sun Jul 22 15:56:53 2012 |
Zach | Optics | Characterization | RoC measurement setup | Here is a more detailed version of
the setup, so that we can gather the parts
we will need. |
|
|
67
|
Tue Mar 5 19:37:00 2013 |
Zach | Optics | Characterization | eLIGO OMC visibility vs. power measurement details | EDIT (ZK): Koji points out that (1 -
Ti) should really be the non-resonant reflectivity
of the aligned cavity, which is much closer |
|
|
68
|
Wed Mar 6 23:24:58 2013 |
Zach | Optics | Characterization | eLIGO OMC visibility vs. power measurement details | I found that, in fact, I had lowered
the modulation depth since when I measured
it to be 0.45 rads --> Psb = 0.1. |
|
|
74
|
Wed Mar 20 09:38:02 2013 |
Zach | Optics | Characterization | [LLO] OMC test bench modified | For various reasons, I had to switch
NPROs (from the LightWave 126 to the Innolight
Prometheus). |
|
|
86
|
Thu Mar 28 03:37:07 2013 |
Zach | Optics | Configuration | Test setup input optics progress | [Lisa, Zach]
Last night (Tuesday), I finished
setting up and aligning most of the input |
|
|
87
|
Fri Mar 29 08:55:00 2013 |
Zach | Optics | Configuration | Beam launched into fiber |
|
|
|
94
|
Thu Apr 4 00:35:42 2013 |
Zach | Optics | Configuration | MMT installed on breadboard, periscope built | [Koji, Zach]
|
|
|
99
|
Fri Apr 5 18:18:36 2013 |
Zach | Optics | Configuration | AOM probably broken |
|
|
|
107
|
Wed Apr 10 00:40:30 2013 |
Zach | Optics | Configuration | fauxMC locked | [Koji, Zach]
|
|
|
137
|
Wed Jun 5 01:06:35 2013 |
Zach | General | Characterization | L1 OMC as-built diagram | D1300507
|
|
|
143
|
Thu Jun 13 12:12:20 2013 |
Zach | General | General | [LLO] OMC and OMCS in LVEA | https://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=7395
|
|
|
290
|
Thu Nov 30 12:18:41 2017 |
Stephen | General | General | Preparation for Modal Testing on 4 December | Norna Robertson, Stephen Appert ||
29 Nov 2017, 2 pm to 4 pm ||
227 Downs, CIT |
|
|
327
|
Thu Apr 11 10:54:38 2019 |
Stephen | General | General | OMC(004): preparation for the PZT subassembly bonding |
Quote:
|
|
|
344
|
Wed Apr 17 09:08:47 2019 |
Stephen | General | General | OMC(004): Unwrapping and preparing breadboard | [Stephen, Philip, Koji, Joe]
Breadboard D1200105 SN06 was selected
as described in eLOG |
|
|
358
|
Thu May 9 16:07:18 2019 |
Stephen | Mechanics | General | Improvements to OMC Bonding Fixture | [Stephen, Koji]
As mentioned in eLOG
331, either increased thermal cycling |
|
|
367
|
Tue May 28 12:14:20 2019 |
Stephen | Optics | General | CM PZT Assembly Debonding of EP30-2 in Acetone | [LiyuanZ, StephenA]
Downs B119
Summary: |
8x |
|
371
|
Thu Aug 22 12:35:53 2019 |
Stephen | Optics | Characterization | Wedging of the debonded PZTs 2019 August | Wedge and thickness measurements of PZTs
12 and 13 took place after debonding and
cleaning - results are shown in the first |
|
|
375
|
Wed Sep 18 22:30:11 2019 |
Stephen | Supply | General | EP30-2 Location and Status | Here is a summary of the events of the
last week, as they relate to EP30-2.
1) I lost the EP30-2 syringes that |
|
|
376
|
Wed Sep 18 23:16:06 2019 |
Stephen | Supply | General | Items staged at 40m Bake Lab for PZT Subassembly Bonding | The following items are presently staged
at the 40m Bake Lab (see photo indicating
current location) (noting items broght by |
|
|
377
|
Wed Sep 18 23:38:52 2019 |
Stephen | General | General | Dirty ABO ready for PZT Subassembly Bonding | The 40m Bake Lab's
Dirty ABO's OMEGA PID controller was
borrowed for another oven in the Bake Lab, |
|
|
379
|
Tue Sep 24 12:19:20 2019 |
Stephen | General | General | Dirty ABO test run prior to PZT Subassembly Bonding | The 40m Bake Lab's
Dirty ABO's OMEGA PID controller was
borrowed for another oven in the Bake Lab |
|
|
380
|
Thu Sep 26 17:33:52 2019 |
Stephen | General | General | Dirty ABO test run prior to PZT Subassembly Bonding - ABO is Ready! | Follow up on OMC
elog 379
I was able to obtain the following |
|
|
382
|
Tue Oct 22 10:25:01 2019 |
Stephen | General | General | OMC PZT Assy #9 and #10 Production Cure Bake | OMC PZT Assy Production Cure Bake (ref.
OMC
elog 381) for PZT Assy #9 and #10 started |
|
|
383
|
Tue Oct 22 11:52:53 2019 |
Stephen | General | General | Epoxy Curing Timeline of OMC PZT Assy #9 and #10 | This post captures the curing timeline
followed by OMC PZT Assys #9 and #10.
Source file posted in case any |
|
|
384
|
Tue Oct 22 11:56:09 2019 |
Stephen | Supply | General | Epoxy Status update as of 22 October 2019 | The following is the current status of
the epoxies used in assembly of the OMC (excerpt
from C1900052) |
|
|
387
|
Fri Dec 13 14:59:18 2019 |
Stephen | General | General | OMC Beam Dump Production Cure Bake | [Koji, Jordan, Stephen]
The beam dumps, bonded on Fri 06
Dec 2019, were placed in the newly tuned |
|
|
407
|
Fri Feb 5 07:40:37 2021 |
Stephen | Supply | General | OMC Unit 4 Build Machined Parts | OMC Unit 4 Build Machined Parts are currently
located in Stephen's office. See image
of large blue box from office, below. |
|
|
411
|
Wed Jul 7 14:21:50 2021 |
Stephen | Supply | General | OMC Unit 4 Build Machined Parts | More explicit insights into the inventory
for the Unit 4 build. Image of inventory
included below. |
|
|
300
|
Mon Jul 2 15:27:31 2018 |
Rich Abbott | Electronics | General | Work on EOM (3rd IFO unit) | Koji, Rich
We took apart the unit removed
from the 3rd IFO (Unit serial number aLIGO |
|
|
301
|
Tue Jul 3 12:07:47 2018 |
Rich Abbott | Electronics | Characterization | Notes on 3rd IFO EOM | Attached please see my notes summarizing
the models for the electrodes and inductors
within the 3rd IFO EOM |
|
|
305
|
Wed Aug 8 17:32:56 2018 |
Rich Abbott | General | Characterization | Modulation Index Test Setup at 40m Lab | Attached is a block diagram of the test
setup used in the 40m lab to measure the
modulation index of the IO modulator |
|
|
336
|
Mon Apr 15 21:11:49 2019 |
Philip | Optics | Characterization | OMC(004): PZT testing for spare OMC | [Koji, Philip]
Today we tested the functionality
of the four remaining PZTs (11,12,13 and |
|
|
345
|
Wed Apr 17 10:30:37 2019 |
Philip | Optics | General | OMC optical set-up day 1 | [Joe, Koji, Liyuan, Philip, Stephen]
Work done on 16.04.2019
|
|
|
347
|
Fri Apr 19 09:21:07 2019 |
Philip | Optics | | Cleaning of OMC optics | ach[Joe, Phillip, Koji,
Stephen]
Work from 17.04.2019 |
|
|
1
|
Fri Jun 15 15:45:49 2012 |
Koji | General | General | OMC Plan | LIGO Document G1200683-v1:
aLIGO OMC fabrication and testing |
|
|
2
|
Sat Jun 16 08:53:09 2012 |
Koji | General | General | To Do List | Facility
Work
|
|
|
3
|
Wed Jun 20 00:10:53 2012 |
Koji | Facility | General | Hole on the wall was patched | |
|
|
7
|
Sat Jul 14 02:16:07 2012 |
Koji | General | General | Plan Update: July | Facility/Supplies
Work in progress |
|
|
8
|
Wed Jul 18 23:20:13 2012 |
Koji | Optics | Characterization | Mode scan results of ELIGO | Nic Smith sent me a bunch of elog lists
where the results of the mode scan can be
found. |
|