| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
214
|
Thu Jul 31 15:07:53 2014 |
Koji | General | General | Item lending | Tara: Laser Safety goggle ->
Returned
Evan: |
|
|
215
|
Mon Aug 4 18:59:50 2014 |
Koji | General | General | A memorandom | On breadboarfd cabling for 3IFO OMC
D1300371 - S1301806
D1300372 - S1301808 |
|
|
216
|
Tue Aug 5 13:03:25 2014 |
Koji | General | General | Missing cable components | DCPD Connector Face: Qty2 https://dcc.ligo.org/LIGO-D1201276
QPD Connector Face: Qty2 https://dcc.ligo.org/LIGO-D1201282
PD faster: 92210A07 Qty 4: MCMASTER |
|
|
219
|
Sat Jan 17 11:40:04 2015 |
Koji | General | General | 3rd OMC completed | Jan 15, 2015 3rd OMC completed
The face caps of the DCPD/QPD cables
were installed (Helicoils inserted) |
|
|
220
|
Fri Jan 30 19:31:08 2015 |
Koji | General | General | Item lending | Gabriele:
PZT HV Amp
Evan: |
|
|
221
|
Tue Feb 3 18:23:49 2015 |
Koji | General | General | Item lending | - The laser was removed and shipped to
LHO today.
- UV illuminator / fused silica |
|
|
222
|
Wed Feb 4 20:07:24 2015 |
Koji | General | General | Item lending | Shipment to MIT (L. Barsotti, J. Miller)
1. UV Illuminator (LESCO Super
Spot MK III) |
|
|
223
|
Wed Feb 18 21:51:23 2015 |
Koji | General | General | Notes on OMC Transportation Fixtures & Pelican | LLO has one empty OMC transportation fixture.
LHO has one empty OMC transportation
fixture. |
|
|
226
|
Tue Jul 21 20:20:12 2015 |
Koji | General | General | Item lending | Kate (ATF)
- 4ch color oscilloscope (Tektronix)
- Chopper controller |
|
|
235
|
Thu Aug 20 01:35:01 2015 |
Koji | Electronics | General | OMC DCPD in-vacuum electronics chain test | We wanted to know the transimpedance
of the OMC DCPD at high frequency (1M~10M).
For this purpose, the OMC DCPD chain |
|
|
236
|
Wed Aug 26 11:31:33 2015 |
Koji | Electronics | General | OMC DCPD in-vacuum electronics chain test | The noise levels of the output pins (pin1/pin6)
are measured. Note that the measurement is
done with SE. i.e. There was no common mode |
|
|
239
|
Sun Sep 6 16:50:51 2015 |
Koji | Electronics | General | Unit test of the EOM/AOM Driver S1500118 | TEST
Result: S1500118
Additional |
|
|
249
|
Tue Dec 29 12:15:46 2015 |
Koji | General | General | Glasgow polarizer passed to Kate | The Glasgow polarizer was passed to Kate
on Dec 17, 2015. |
|
|
262
|
Fri Jul 22 22:24:05 2016 |
Koji | General | General | HQEPD inventory | As of Jul 22, 2016
As of Aug 11, 2016
As of Aug 16, 2016 |
|
|
264
|
Mon Aug 15 10:09:10 2016 |
Koji | General | General | Prev H1 OMC shipped to CIT | Previous H1 OMC shipped from LHO to CIT
https://ics-redux.ligo-la.caltech.edu/JIRA/browse/Shipment-8196 |
|
|
265
|
Mon Aug 22 12:58:16 2016 |
Koji | General | General | UV bond samples -> Garilynn | - FS base + Mounting Prism
- FS or SF2 1/2" piece + FS
or SF2 1/2" piece |
|
|
268
|
Fri Sep 9 14:34:31 2016 |
Koji | General | General | Item lending | To 40m
First Contact Kit by Calum
Class A Kapton sheets |
|
|
269
|
Fri Sep 9 19:43:32 2016 |
Koji | Optics | General | D1102211 OMC Diode Mount Glass Block went to Downs | D1102211 OMC Diode Mount Glass Block (11pcs)
have been given to Calum@Downs |
|
|
270
|
Mon Nov 21 21:19:20 2016 |
Koji | Optics | General | LWE NPRO Laser / Input Optics / Fiber Coupling | - About 1.5 month ago, an 700mW LWE NPRO
has been brought to OMC Lab.
- The SOP can be found here. |
|
|
271
|
Wed Dec 7 19:18:10 2016 |
Koji | Optics | General | LWE NPRO Laser / Input Optics / Fiber Coupling | FIber Input Mount 132deg
Fiber output mount 275deg
-> 525mW P: 517mW S: 8mW extinction |
|
|
272
|
Wed Dec 7 21:18:35 2016 |
Koji | General | General | OMC placed on the table / the beam roughly aligned | The OMC mode matching sled was fixed on
the nominal part of the table. Then the OMC
was located at the nominal position marked |
|
|
273
|
Thu Dec 8 21:17:09 2016 |
Koji | General | General | OMC placed on the table / the beam roughly aligned | The OMC cavity was locked. The alignment
was precisely adjusted. The mode matching
was optimized by the lens positions. The |
|
|
274
|
Thu Jan 19 20:57:53 2017 |
Koji | Supply | General | Purchase | Ordered:
Office Depot
v AA battery Qty. 24 |
|
|
275
|
Thu Feb 16 17:23:12 2017 |
Koji | Supply | General | Purchase |
BNC Patch Panel
8x
Amphenol Connex 112443 / Isolated BNC FEMALE
TO FEMALE BULKHEAD ISOLATED ADAPTER - 50 |
|
|
281
|
Fri Jun 23 01:58:11 2017 |
Koji | Optics | General | OMC #002 Repair - CM1 gluing | [Alena, Koji]
Jun 21: Alena and Koji
worked on gluing of the CM1 mirror on the |
6x |
|
282
|
Fri Jun 23 10:55:07 2017 |
Koji | Optics | General | Dust layer on black glass beam dumps? | I wondered why the black glass beam dumps
looked not as shiny as before. It was in
fact a layer of dusts (or contaminants) accumulated |
|
|
283
|
Sat Jul 1 15:29:57 2017 |
Koji | Optics | General | Black glass cleaning / Final bonding for the emergency repair for OMC #002 | [Alena, Koji]
Report of the work on June
30. |
|
|
284
|
Sat Jul 1 21:33:18 2017 |
Koji | General | General | Some purchase notes | - Forgot to close the cylinder valve...
v HEPA prefilter (20"x20"x1"
MERV 7) |
|
|
285
|
Wed Jul 5 16:59:44 2017 |
Koji | General | General | The OMC #002 was packed | [Stephen Koji]
The OMC #002 was packed for the
transportation to Downs. |
|
|
288
|
Fri Sep 8 15:14:05 2017 |
Koji | Facility | General | Preparation for the plumbing work | [Steve, Aaron, Koji]
We've finished the preparation
for the forthcoming plumbing work on (nominally) |
7x |
|
289
|
Mon Nov 27 20:24:24 2017 |
Koji | General | General | A former LHO PD (Trans) removed from the OMC #002 for the shipment to Stockholm | Attachment 1: The PD was
removed from the transmission side of the
OMC #002 (former LHO OMC - the one blasted |
6x |
|
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 |
|
|
294
|
Sat May 5 22:51:04 2018 |
Koji | Optics | General | 3IFO EOM Optical test | The 3IFO EOM test performed at
the 40m. Result: 40m
ELOG 13819 |
|
|
295
|
Tue May 15 19:53:45 2018 |
Koji | Optics | General | EOM Q comparison | Qs' were estimated with a lorentzian
function (eye fit)
|
|
|
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 |
|
|
307
|
Wed Aug 29 11:06:30 2018 |
Koji | General | General | RF AM RIN and dBc conversion | 0. If you have an RF signal whose waveform
is , the amplitude is constant and 1. |
|
|
308
|
Sun Sep 23 19:42:21 2018 |
Koji | Optics | General | Montecarlo simulation of the phase difference between P and S pols for a modeled HR mirror | [Koji Gautam]
With Gautam's help,
I ran a coating design code for an HR mirror |
|
|
309
|
Thu Sep 27 20:19:15 2018 |
Aaron | Optics | General | Montecarlo simulation of the phase difference between P and S pols for a modeled HR mirror | I started some analytic calculations of
how OMC mirror motion would add to the noise
in the BHD. I want to make some prettier |
|
|
310
|
Thu Nov 1 19:57:32 2018 |
Aaron | Optics | General | Montecarlo simulation of the phase difference between P and S pols for a modeled HR mirror | I'm still not satisfied/done with the
solution to this, but this has gone too long
without an update and anyway probably someone |
|
|
314
|
Fri Feb 1 12:52:12 2019 |
Koji | Mechanics | General | PZT deformation simulation | A simple COMSOL simulation was run to see
how the PZT deforms as the voltage applied.
Use the geometry of the ring PZT |
|
|
321
|
Thu Apr 4 20:07:39 2019 |
Koji | Supply | General | Purchase | == Office Depot ==
Really
Useful Box 9L x 6 (delivered) |
|
|
325
|
Fri Apr 5 23:30:20 2019 |
Koji | General | General | OMC (002) repair completed | OMC(002)
repair completed
When the cable harness of OMC(004) |
|
|
326
|
Wed Apr 10 19:22:24 2019 |
Koji | General | General | OMC(004): preparation for the PZT subassembly bonding | Preparation for the PZT subassembly
bonding (Section 6.2 and 7.3 of T1500060
(aLIGO OMC optical testing procedure) |
|
|
327
|
Thu Apr 11 10:54:38 2019 |
Stephen | General | General | OMC(004): preparation for the PZT subassembly bonding |
Quote:
|
|
|
329
|
Thu Apr 11 21:22:26 2019 |
Koji | Mechanics | General | OMC(004): PZT sub-assembly gluing | [Koji Stephen]
The four PZT sub-assemblies were
glued in the gluing fixtures. There were |
|
|
330
|
Thu Apr 11 21:22:58 2019 |
Koji | General | General | OMC(004): PZT sub-assembly air baking | [Stephen Koji]
The baking of the PZT subassemblies
was more complicated than we initially thought. |
|
|
331
|
Sun Apr 14 23:58:49 2019 |
Koji | General | General | OMC(004): PZT sub-assembly post air-bake inspection | [Koji Stephen]
(Friday afternoon) We retrieved
the PZT sub-assemblies to the clean room. |
|
|
332
|
Mon Apr 15 00:08:32 2019 |
Koji | General | General | OMC(004): PZT sub-assembly post air-bake inspection (Sub-assy #7) | Sub-ASSY
#7
Probably the best glued unit among |
6x |
|
333
|
Mon Apr 15 00:39:04 2019 |
Koji | General | General | OMC(004): PZT sub-assembly post air-bake inspection (Sub-assy #8) | Sub-ASSY
#8
Probably the best glued unit among |
8x |
|
334
|
Mon Apr 15 01:07:30 2019 |
Koji | General | General | OMC(004): PZT sub-assembly post air-bake inspection (Sub-assy #9) | Sub-ASSY
#9
The most fractured unit among four. |
7x |