| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
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 |
|
|
76
|
Sat Mar 23 02:41:00 2013 |
Koji | Optics | General | Black glass beam dumps for the first OMC | Received black glass beam dumps from
MIT
- gluing by EP30-2 looks pretty fine. |
|
|
75
|
Sat Mar 23 02:32:23 2013 |
Koji | Facility | General | N2 cylinder delivered | Preparation for ionized N2 blow
- 99.9998% N2 cylinder delivered
(ALPHAGAZ 2 grade by AIR LIQUIDE) ALPHAGAZ |
|
|
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). |
|
|
73
|
Sun Mar 17 21:59:47 2013 |
Koji | Electronics | Characterization | Diode testing ~ DCPD | - For the dark noise measurement, the lid
of the die-cast case should also contact
to the box for better shielding. This made |
|
|
72
|
Fri Mar 15 02:15:45 2013 |
Koji | Electronics | Characterization | Diode testing | Diode testing
o Purpose of the measurement
- Test Si QPDs (C30845EH) for ISC |
|
|
71
|
Thu Mar 14 22:18:23 2013 |
Koji | General | General | New loans for the diode test | ALL
returned
Loan
from ATF: |
|
|
70
|
Thu Mar 14 17:06:21 2013 |
Koji | Mechanics | General | OMC SUS work @LLO | EDIT (ZK): All photos on
Picasa. Also, I discovered that |
|
|
69
|
Thu Mar 7 15:53:47 2013 |
Koji | Mechanics | General | OMC Transportation fixture, OMC PD/QPD mounts | |
|
|
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. |
|
|
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 |
|
|
66
|
Fri Mar 1 23:52:18 2013 |
Koji | Optics | Characterization | Wedge measurement with the autocollimator and the rotation stage | Measurement:
E1: α =
0.672 deg, β = +0.0 arcmin (0 div up)
|
|
|
65
|
Fri Mar 1 23:06:15 2013 |
Koji | Optics | Configuration | More perpendicularity test final | Perpendicularity of the "E" mirror
was measured.
Mounting Prisms: |
|
|
64
|
Wed Feb 27 18:18:48 2013 |
Koji | Optics | Configuration | More perpendicularity test | Mounting Prisms:
(criteria: 30arcsec = 145urad =>
0.36mm spot shift) |
|
|
63
|
Thu Feb 21 18:44:18 2013 |
Koji | Optics | Configuration | Perpendicularity test | Perpendicularity test of the mounting
prisms:
The perpendicularity of the prism |
|
|
62
|
Thu Feb 7 23:01:45 2013 |
Koji | Optics | Characterization | UV epoxy gluing test | [Jeff, Yuta, Koji]
Gluing test with UV-cure epoxy
Optocast 3553-LV-UTF-HM |
|
|
61
|
Thu Feb 7 21:35:46 2013 |
Koji | General | General | Dmass's loan of LB1005 / A2&C2 sent to Fullerton / First Contact @40m | Dmass
borrowed the LB1005 servo amp from the OMC
lab. |
|