| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
127
|
Tue May 14 19:06:00 2013 |
Koji | Clean | General | OMC Baking | The OMC is in the air bake oven now.
|
|
|
126
|
Mon May 13 15:00:23 2013 |
Koji | General | General | Current most reliable OMC schedule | May
Tue 14th The OMC
given to Bob (Air bake & Vac bake)
Mon
20th The OMC received from Bob
|
|
|
125
|
Mon May 13 14:59:16 2013 |
Koji | Mechanics | General | Invar shim gluing | The invar reinforcement shims were glued
on the glass brackets on the breadboard.
|
|
|
124
|
Mon May 13 14:49:35 2013 |
Koji | Mechanics | Characterization | Mounting Glass Bracket still broke with tightenin stress | [Koji / Jeff]
This is the elog about the work on
May 9th. |
|
|
123
|
Fri May 10 09:33:22 2013 |
Koji | Supply | General | COMSOL simulation on the glass bracket stress | |
|
|
122
|
Wed May 8 15:36:50 2013 |
Koji | General | General | Latest OMC schedule |
May
(done) Mon 6th:
Invar plate arrival / Spot position measurement
(done)
Tue 7th: Invar plate cleaning / Spot position |
|
|
121
|
Wed May 8 15:08:57 2013 |
Koji | Optics | Characterization | Spot position measurement on the diode mounts | Remeasured the spot positions:
DCPD1: 1.50mm+0.085mm => Beam
0.084mm too high |
|
|
120
|
Mon May 6 19:31:51 2013 |
Koji | Optics | Characterization | Spot position measurement on the diode mounts | Measurement Order: DCPD2->DCPD1->QPD1->QPD2
DCPD1: 1.50mm+0.085mm => Beam
0.027mm too low |
|
|
119
|
Fri May 3 21:09:08 2013 |
Koji | General | General | OMC is back | L1 OMC is back on the table for the action
next week. |
|
|
118
|
Thu Apr 18 11:59:02 2013 |
Koji | General | General | DCPD path gluing | [Jeff, Koji]
DCPD path gluing |
|
|
116
|
Thu Apr 18 11:43:59 2013 |
Koji | General | General | Mounting Glass Bracket Failure | [Jeff, Koji]
- While we were working on the optics
alignment, one of the mounting brackets made |
|
|
115
|
Wed Apr 17 07:30:04 2013 |
Koji | Optics | General | QPD path glued | Yesterday,
all of the glass components for the QPD path
were glued. |
|
|
114
|
Tue Apr 16 23:26:51 2013 |
Koji | Optics | Characterization | Further More Mirror T measurement | Since the previous measurement showed too
high loss, the optical setup was checked.
It seemed that a PBS right before |
|
|
113
|
Tue Apr 16 09:43:58 2013 |
Koji | Optics | Configuration | Mirror list for L1OMC | L1 OMC
Cavity Mirrors
FM1 (input coupler): A8 |
|
|
112
|
Tue Apr 16 08:12:14 2013 |
Koji | Optics | Characterization | Further More Mirror T measurement | T&Rs of the B mirrors and some of the
E mirrors are measured.
I found that |
|
|
111
|
Tue Apr 16 00:40:45 2013 |
Koji | Optics | General | PD/QPD path gluing ~ preparation | [Jeff Koji]
- Placed the optics on the PD/QPD
path |
|
|
110
|
Sat Apr 13 21:06:02 2013 |
Koji | Optics | General | OMC Bottom-side: cavity glued | [Jeff, Zach, Lisa, Koji]
Gluing of the cavity mirrors went |
|
|
109
|
Fri Apr 12 09:25:31 2013 |
Koji | Optics | Characterization | Alignment of the OMC (without glue) | [Zach Koji]
The first attempt not to touch the
curved mirrors did not work. (Not surprising) |
|
|
108
|
Thu Apr 11 15:10:22 2013 |
Koji | General | General | OMC Progress | [Zach, Jeff, Koji]
- Jeff configured the bottom
side template to have a nominal value |
|
|
107
|
Wed Apr 10 00:40:30 2013 |
Zach | Optics | Configuration | fauxMC locked | [Koji, Zach]
|
|
|
106
|
Tue Apr 9 13:56:09 2013 |
Koji | Optics | General | PZT assembly post gluing / pre baking pictures |
|
|
|
105
|
Mon Apr 8 23:42:33 2013 |
Koji | Optics | Configuration | Fake OMC roughly aligned | Mode matching:
|
|
|
104
|
Mon Apr 8 21:11:14 2013 |
Koji | Optics | General | PZT assembly gluing | [Jeff, Zach, Koji]
PZT assembly gluing
Glue gun -> to be returned to |
|
|
103
|
Mon Apr 8 20:56:52 2013 |
Koji | Optics | Configuration | PZT & Curverd Mirror arrangement | Assembly #1:
Mounting Prism #16
PZT #26 |
|
|
102
|
Mon Apr 8 11:49:18 2013 |
Koji | Mechanics | Characterization | PZT actuator tested at LLO | Test result of the PZTs by Valera and Ryan
PZT Length Angle
#
[nm/V] [urad/um]
11 14.5 17.6
|
|
|
101
|
Mon Apr 8 11:29:08 2013 |
Koji | Optics | Characterization | Mirror/PZT Characterization links |
Mirror
List
http://nodus.ligo.caltech.edu:8080/OMC_Lab/152 |
|
|
100
|
Mon Apr 8 11:11:37 2013 |
Koji | Optics | Characterization | More Mirror T measurement | More Ts of the mirrors were measured.
A mirror specification:
Request: 8300+/-800 ppm |
|
|
99
|
Fri Apr 5 18:18:36 2013 |
Zach | Optics | Configuration | AOM probably broken |
|
|
|
98
|
Fri Apr 5 14:39:26 2013 |
Koji | Mechanics | Characterization | Calibration of the test PZTs after the heat cure | We attached fused silica windows on the
test PZTs. http://nodus.ligo.caltech.edu:8080/OMC_Lab/93
The glued assemblies were brought |
|
|
97
|
Thu Apr 4 23:44:52 2013 |
Koji | Optics | Configuration | Beam launched into fiber | We had to move our flipper mirror to share
the beam between Peter's setup and ours as
our flipper is at the place where the ISS |
|
|
96
|
Thu Apr 4 01:43:06 2013 |
Koji | Optics | Characterization | Mirror T measurement | [Zach, Koji]
The measurement setup for the transmission
measurement has been made at the output of |
|
|
95
|
Thu Apr 4 01:35:04 2013 |
Koji | Optics | Characterization | Mode matching to the OMC cavity | The fiber output was matched with the lenses
on a small bread board.
The detailed configuration is found |
|
|
94
|
Thu Apr 4 00:35:42 2013 |
Zach | Optics | Configuration | MMT installed on breadboard, periscope built | [Koji, Zach]
|
|
|
93
|
Wed Apr 3 18:42:45 2013 |
Koji | Optics | General | EP30-2 gluing test | EP30-2 gluing test
|
|
|
92
|
Wed Apr 3 17:39:38 2013 |
Koji | Mechanics | Characterization | Calibration of the test PZTs before the glue test | We want to make sure the responses of the
PZT actuator does not change after the EP30-2
gluing. |
|
|
91
|
Mon Apr 1 18:17:01 2013 |
Koji | Optics | General | Mirror curvature center test | Locations of the curvature minimum
on the OMC curved mirrors have been measured.
|
6x |
|
90
|
Mon Apr 1 10:28:03 2013 |
Koji | Mechanics | General | Additional UV blast for the top surface | [Koji, Lisa, Jeff, Zach]
Jeffs concern after talking with the |
|
|
89
|
Mon Apr 1 03:23:48 2013 |
Koji | Optics | General | UV power calibration | [Koji Lisa Jeff Zach]
Eric G bought a UV power meter from
American Ultraviolet. |
|
|
88
|
Mon Apr 1 03:13:41 2013 |
Koji | Optics | General | Failure of PZT-glass joints | [Koji, Jeff, Zach, Lisa]
We glued a test PZT-mirror assembly
last week in order to make sure the heat |
|
|
87
|
Fri Mar 29 08:55:00 2013 |
Zach | Optics | Configuration | Beam launched into fiber |
|
|
|
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 |
|
|
85
|
Wed Mar 27 20:55:10 2013 |
Koji | General | General | OMC building plan / procedure ~ Mar 28 Thu | 28 March (Thu):
Rebuild the bottom template
in the lab
Place the bottom |
|
|
84
|
Wed Mar 27 20:54:54 2013 |
Koji | General | General | OMC building plan / procedure ~ Mar 27 Wed | 27 March (Wed)
- AOM drift investigation (Lisa,
Zach) |
|
|
83
|
Wed Mar 27 20:54:45 2013 |
Koji | General | General | OMC building plan / procedure ~ Mar 26 Mon | 26 March (Tue):
- Curved mirror characterization
(Koji, done) |
|
|
82
|
Tue Mar 26 22:33:07 2013 |
Koji | General | General | Loan for the OMC building | Loan from PSL Lab
- 300mm mirror with Ultima mount
and pedestal |
|
|
81
|
Mon Mar 25 19:31:16 2013 |
Koji | Optics | General | OMC Top-side gluing | [Koji Jeff Zach]
AAA
|
|
|
80
|
Mon Mar 25 18:34:25 2013 |
Koji | General | General | OMC building plan / procedure ~ Mar 25 Mon | 25 March (Mon):
Inspect the test PZT assembly
=> Give it to Bob. |
|
|
79
|
Mon Mar 25 02:04:05 2013 |
Koji | General | General | OMC building plan / procedure ~ WB18 | WB 18 March
Diode test
Dark current |
|
|
78
|
Sat Mar 23 16:36:15 2013 |
Koji | Electronics | Characterization | Diode QE measurement | Quantum efficiencies of the C30665GH
diodes were measured.
- The diode was biased by the FEMTO |
|
|
77
|
Sat Mar 23 13:34:14 2013 |
Koji | Optics | General | PZT assembly prototype glued |
Prototype
PZT assembly |
|