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Wed Dec 31 16:00:00 1969

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ID	Date	Author	Type	Category	Subject	Text
224	Wed Jul 15 22:23:17 2015	Koji	Electronics	AM Stabilized EOM Driver	E1400445 first look	This is not an OMC related and even not happening in the OMC lab (happening at the 40m), but I needed somewhere to elog...
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.
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)
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
220	Fri Jan 30 19:31:08 2015	Koji	General	General	Item lending	Gabriele: PZT HV Amp Evan:
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)
218	Tue Sep 9 20:59:19 2014	Koji	Mechanics	Characterization	Structural mode analysis for the PZT mirror	Structural analysis of the PZT mirror with COMSOL. Inline figures: Eigenmodes	6x
217	Wed Aug 27 23:13:13 2014	Koji	Optics	Characterization	Collection of the power budgetting info	L1 OMC Cavity power budget H1
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
215	Mon Aug 4 18:59:50 2014	Koji	General	General	A memorandom	On breadboarfd cabling for 3IFO OMC D1300371 - S1301806 D1300372 - S1301808
214	Thu Jul 31 15:07:53 2014	Koji	General	General	Item lending	Tara: Laser Safety goggle -> Returned Evan:
213	Mon Jul 21 01:02:43 2014	Koji	Mechanics	Characterization	Some structual mode analysis	Prisms Fundamental: 12.3kHz Secondary: 16.9kHz	6x
212	Sun Jul 20 17:20:39 2014	Koji	General	General	The 3rd (LIO) OMC was shipped out to LHO	The 3rd (LIO) OMC was shipped out to LHO on Friday (Jul 18) Morning. At LHO
211	Sun Jul 20 17:19:50 2014	Koji	Mechanics	Characterization	I1OMC vibration test ~ 2nd round	Improved vibration measurement of the OMC Improvement	9x
210	Thu Jul 17 02:19:20 2014	Koji	Mechanics	Characterization	I1OMC vibration test	Summary - The breadboard has a resonance at 1.2kHz. The resonant freq may be chagned	6x
209	Tue Jul 15 03:34:16 2014	Koji	Optics	Characterization	OMC backscatter measurement	Backscatter measurement ~ 2nd round Summary
208	Tue Jul 15 03:00:42 2014	Koji	Optics	Characterization	OMC backscatter measurement	Presence of the misaligned SRM (T=20%) was forgotten in the previous entry. This effectively reduces the OMC reflectivity
207	Sun Jul 13 17:46:28 2014	Koji	Optics	Characterization	OMC backscatter measurement	Backscattering reflectivity of the 3rdOMC was measured. Attached: Measurement setup
206	Fri Jul 11 00:06:33 2014	Koji	Optics	Characterization	I1OMC PD	DCPD# DCPD1 DCPD2 Housing#
205	Thu Jul 10 23:22:28 2014	Koji	Optics	Characterization	I1OMC QPD	QPD# QPD1 QPD2
204	Thu Jul 10 08:34:57 2014	Koji	General	General	To Do	Optical tests Cleaning Power Budget
203	Thu Jul 10 01:39:38 2014	Koji	Electronics	General	PZT wire	Rich came to the OMC lab. Pins for the mighty mouse connector were crimped on the 4 PZT wires.
202	Tue Jul 8 18:54:54 2014	Koji	Mechanics	Characterization	PZT characterization	Each PZT was swept with 0-150V 11Hz triangular wave. Time series data for 0.2sec was recorded
201	Tue Jul 8 04:08:06 2014	Koji	General	General	Expoxy reapplication for beam dumps	Firstly, the excess epoxy was removed using a cleaned razor balde
200	Mon Jul 7 01:36:03 2014	Koji	General	General	To Do	Optical tests Cleaning Power Budget
199	Sun Jul 6 08:31:14 2014	Koji	Optics	Characterization	HOM measurement with PZT vol swept	3rd OMC, HOM diagram at PZT1=0V and PZT2=50V. First coincidence with the carrier is the 32nd-order carrier mode. Very good.
198	Sun Jul 6 03:56:40 2014	Koji	Optics	Characterization	HOM measurement with PZT vol swept	Cavity FSR/TMS measurement (2014/7/5) with PZT voltages swept from 0V to 200V (50V step)
197	Sun Jul 6 02:46:20 2014	Koji	Optics	Characterization	OMC power budget	3rd OMC power budget (2014/7/2) Input power: 34.8mW
196	Sun Jul 6 02:45:56 2014	Koji	Optics	General	FSR Measurement	3rd OMC FSR / Finesse measurement RF AM was injected by detuning a HWP.
195	Thu Jul 3 17:45:18 2014	Koji	General	General	Beam dump delamination	Here is the resolution. I'll apply fillets of EP30-2 along the edges of the black glass (See figure).
194	Wed Jul 2 18:58:42 2014	Koji	General	General	Beam dump delamination	While the OMC breadboard was being inspected, it was found that two out of five black-glass beam dumps showed sign of delamination.
193	Wed Jul 2 16:41:43 2014	Koji	General	General	OMC baking	OMC is back from the oven today. To Do: Optical tests
192	Fri Jun 27 18:51:33 2014	Koji	General	General	Supply	PTOUCH TAPE (12mm white) x 2 9V batteries
191	Fri Jun 27 12:29:50 2014	Koji	General	General	OMC baking	The OMC went into the oven at around 2PM on Thursday. It will be baked at 80degC for 48 hours.
190	Tue Jun 24 18:43:15 2014	Koji	General	General	ICS entries for the OMC baking/assembly	For baking: Assembly Name aLIGO Output Mode Cleaner
189	Mon Jun 23 21:54:16 2014	Koji	Optics	General	All of the gluing completed	The bottom-side templates were removed. The last beam dump was removed TODO
188	Fri Jun 20 18:59:12 2014	Koji	Optics	General	All of the invar blocks have been glued	All of the INVAR blocks have been glued. I found thinner shims in the stock. On Monday, the template will be removed.
187	Thu Jun 19 23:16:50 2014	Koji	Optics	General	All of the prisms have been glued	- All of the PRISM mirrors have been glued - 4 out of 5 beam dumps have been glued
186	Sat May 17 07:40:14 2014	Koji	Optics	Characterization	I1OMC cavity mirrors glued	I1OMC cavity mirrors were glued. FSR = 264.82MHz => Lcav = 1.132m (nominal 1.132m)
185	Fri May 16 00:13:36 2014	Koji	Optics	Characterization	Cavity mirror gluing part 1	BS1/FM1/FM2 for I1OMC were glued. FM1 had to be intentionally rotated. FM1 had to be intentionally shifted
184	Wed May 14 02:15:15 2014	Koji	Optics	Characterization	FSR/TSM adjustment of the OMC cavity	1. FSR was adjusted and measured with "the golden arches" technique again. FSR = 264.8412 MHz +/- 1400Hz =>
183	Mon May 12 22:43:02 2014	Koji	Optics	Characterization	Measured FSR/TSM of the OMC cavity	Data analysis of the FSR/TSM measruement last week. 1. FSR was measured with "the
182	Thu Apr 17 21:39:25 2014	Koji	Optics	General	More alignment	STORY: - The cavity mirrors have scattering spots. The cavity alignment should have been
181	Tue Mar 25 17:10:10 2014	Koji	Optics	Characterization	OMC spot position estimation	Spot positions were inferred from the photos
180	Mon Mar 3 02:46:21 2014	Koji	General	Characterization	Spot positions scanned	Spot positions on CM1 and CM2 scanned according to the recipes provided by the previous entry. The best result obtained was:
179	Fri Feb 28 19:50:11 2014	Koji	General	General	Misalignment ABCD matrix for the aLIGO OMC	Relationship between mirror misalignment and cavity mode shift was calculated. The technique described in T0900647
178	Tue Feb 18 18:58:38 2014	Koji	General	General	LHO H1 OMC installation photos	LHO OMC installation photos
177	Tue Dec 10 16:41:51 2013	Koji	General	General	To Buy	Masks / Wipes => done
176	Thu Nov 21 00:05:35 2013	Koji	General	General	H1OMC electronics arrangement	Checked the PZT arrangement: Mighty Mouse Pin1&2 -> PZT2 (DCPD side), Mighty Mouse Pin3&4 -> PZT1 (QPD side)
175	Mon Nov 4 19:43:56 2013	Koji	General	General	H1OMC Packed	H1OMC PZT connector was replaced with the correct one. This was the final step for H1OMC.

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