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New entries since:Wed Dec 31 16:00:00 1969
ID Date Author Type Categorydown Subject Text Attachments
  80   Mon Mar 25 18:34:25 2013 KojiGeneralGeneralOMC building plan / procedure ~ Mar 25 Mon25 March (Mon): 
Inspect the test PZT assembly

    => Give it to Bob. 
  
  81   Mon Mar 25 19:31:16 2013 KojiOpticsGeneralOMC Top-side gluing[Koji Jeff Zach]  
AAA
 P3253353.jpgP3253372.jpgP3253394.jpgP3253400.jpg 
  82   Tue Mar 26 22:33:07 2013 KojiGeneralGeneralLoan for the OMC buildingLoan from PSL Lab
- 300mm mirror with Ultima mount
and pedestal
  
  83   Wed Mar 27 20:54:45 2013 KojiGeneralGeneralOMC building plan / procedure ~ Mar 26 Mon26 March (Tue):
- Curved mirror characterization
(Koji, done)
  
  84   Wed Mar 27 20:54:54 2013 KojiGeneralGeneralOMC building plan / procedure ~ Mar 27 Wed27 March (Wed)
- AOM drift investigation (Lisa,
Zach)
  
  85   Wed Mar 27 20:55:10 2013 KojiGeneralGeneralOMC building plan / procedure ~ Mar 28 Thu28 March (Thu): 

    Rebuild the bottom template
in the lab
    Place the bottom
  
  88   Mon Apr 1 03:13:41 2013 KojiOpticsGeneralFailure of PZT-glass joints[Koji, Jeff, Zach, Lisa]
We glued a test PZT-mirror assembly
last week in order to make sure the heat
  
  89   Mon Apr 1 03:23:48 2013 KojiOpticsGeneralUV power calibration[Koji Lisa Jeff Zach]
Eric G bought a UV power meter from
American Ultraviolet.
  
  90   Mon Apr 1 10:28:03 2013 KojiMechanicsGeneralAdditional UV blast for the top surface[Koji, Lisa, Jeff, Zach]

Jeffs concern after talking with the
 P3283483.JPGP3283459.jpgP3283473.JPG 
  91   Mon Apr 1 18:17:01 2013 KojiOpticsGeneralMirror curvature center testLocations of the curvature minimum
on the OMC curved mirrors have been measured.
 6x 
  93   Wed Apr 3 18:42:45 2013 KojiOpticsGeneralEP30-2 gluing testEP30-2 gluing test
  
  104   Mon Apr 8 21:11:14 2013 KojiOpticsGeneralPZT assembly gluing[Jeff, Zach, Koji] 
PZT assembly gluing
Glue gun -> to be returned to
  
  106   Tue Apr 9 13:56:09 2013 KojiOpticsGeneralPZT assembly post gluing / pre baking pictures 
  
  108   Thu Apr 11 15:10:22 2013 KojiGeneralGeneralOMC Progress[Zach, Jeff, Koji]

- Jeff configured the bottom
side template to have a nominal value
  
  110   Sat Apr 13 21:06:02 2013 KojiOpticsGeneralOMC Bottom-side: cavity glued[Jeff, Zach, Lisa, Koji]
Gluing of the cavity mirrors went
 Cav_scan_response_130412_Pitch.pdfCav_scan_response_130412_Yaw.pdf 
  111   Tue Apr 16 00:40:45 2013 KojiOpticsGeneralPD/QPD path gluing ~ preparation[Jeff Koji]
- Placed the optics on the PD/QPD
path
  
  115   Wed Apr 17 07:30:04 2013 KojiOpticsGeneralQPD path gluedYesterday,
all of the glass components for the QPD path
were glued.
  
  116   Thu Apr 18 11:43:59 2013 KojiGeneralGeneralMounting Glass Bracket Failure[Jeff, Koji]
- While we were working on the optics
alignment, one of the mounting brackets made
  
  118   Thu Apr 18 11:59:02 2013 KojiGeneralGeneralDCPD path gluing[Jeff, Koji]
DCPD path gluing
  
  119   Fri May 3 21:09:08 2013 KojiGeneralGeneralOMC is backL1 OMC is back on the table for the action
next week.
  
  122   Wed May 8 15:36:50 2013 KojiGeneralGeneralLatest OMC schedule
May
(done) Mon  6th:
Invar plate arrival / Spot position measurement
(done)
Tue  7th: Invar plate cleaning / Spot position
  
  123   Fri May 10 09:33:22 2013 KojiSupplyGeneralCOMSOL simulation on the glass bracket stress   COMSOL1.png 
  125   Mon May 13 14:59:16 2013 KojiMechanicsGeneralInvar shim gluingThe invar reinforcement shims were glued
on the glass brackets on the breadboard.
  
  126   Mon May 13 15:00:23 2013 KojiGeneralGeneralCurrent most reliable OMC scheduleMay
Tue 14th The OMC
given to Bob (Air bake & Vac bake)

Mon
20th The OMC received from Bob
        
  
  127   Tue May 14 19:06:00 2013 KojiCleanGeneralOMC BakingThe OMC is in the air bake oven now.
  
  128   Mon May 20 14:59:21 2013 KojiGeneralGeneralOMC is out from the ovenThe OMC came back to the table again.
No obvious change is visible: no
crack, no delamination
  
  129   Tue May 21 18:28:08 2013 KojiGeneralGeneralCurrent most reliable OMC schedule- The wrong Mighty Mouse connectors for
the PZT wires were prepared. The correct
ones are in the vacuum oven till Tuesday
  
  130   Thu May 23 23:41:48 2013 KojiMechanicsGeneralDCPD/QPD MountDCPD mounts and QPD mounts were attached
on the breadboard. They are not aligned yet
and loosely fastened.
  
  131   Thu May 30 14:38:42 2013 KojiElectronicsGeneralCable fitting Yesterday Jeff and Chub worked on the cabling
of the OMC. It turned out that the gender
of the cable connectors 
  
  132   Thu May 30 15:00:28 2013 KojiOpticsGeneralQPD alignmentThe QPD alignment was adjusted using
the aligned beam to the cavity and the 4ch
transimpedance amplifier.
  
  133   Fri May 31 05:46:54 2013 KojiOpticsGeneralQPD alignmentPeter F suggested to check the bottom surface
of the PD housings if there is any protrusion/interference/whatever.
And that was true! It was found that
 QPD1.JPGQPD2.JPGQPD_calib.nb.zip 
  136   Mon Jun 3 21:19:03 2013 KojiGeneralGeneralPlanningMonday - Evening
(Koji)
[done] - DCPD alignment
  
  138   Wed Jun 5 18:19:51 2013 KojiGeneralGeneralSome recent photos from the OMC final test at CITApplying First Contact for the optics cleaning
  
  139   Wed Jun 5 18:51:31 2013 KojiGeneralGeneralL1 OMC shipped out[Koji, Jeff]
The L1 OMC
 CAM00011.jpgP6054027.JPG 
  140   Fri Jun 7 16:04:44 2013 KojiGeneralGeneral[LLO] OMC arrived[Koji Zach Suresh]
The OMC arrived at LLO without any
destruction!
  
  141   Mon Jun 10 10:04:37 2013 KojiGeneralGeneral[LLO] OMC Test[Koji Zach]
We worked on the OMC test over
the weekend.
 OMC_pow_cal.pdfresponsivity.pdfOMC_pow_cal_compensated.pdf 
  142   Thu Jun 13 12:04:57 2013 KojiGeneralGeneral[LLO] OMC Optical Test - completedhttps://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=7373   
  143   Thu Jun 13 12:12:20 2013 ZachGeneralGeneral[LLO] OMC and OMCS in LVEAhttps://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=7395
  
  144   Fri Jun 14 06:35:21 2013 JeffGeneralGeneral[LLO] L1 OMC statushttps://alog.ligo-la.caltech.edu/aLOG/index.php?callRep=7410
Weights:
Suspension cage and transportation
 preamp_arrangement.png 
  146   Tue Jun 18 15:45:38 2013 KojiGeneralGeneral[LLO] OMC installation in HAM6OMC installed
in HAM6!
  
  147   Fri Jun 28 12:20:49 2013 KojiGeneralGeneralDmass's loan of Thorlabs HV amphttp://nodus.ligo.caltech.edu:8080/Cryo_Lab/799
(KA: Returned upon H1OMC building)
  
  149   Fri Aug 9 10:09:56 2013 KojiGeneralGeneralPZT Assembly #3/#4Yesterday, Jeff and I bonded the PZT assemblies
(#3/#4).
The attached is the arrangement of
 PZT_assembly.pdf 
  150   Mon Aug 12 20:22:19 2013 KojiGeneralGeneralPZT Assembly #5/#6PZT Assembly #5/#6 were glued on Fri Aug
9th
They are removed from the fixture
  
  152   Fri Aug 16 16:36:19 2013 KojiOpticsGeneralOptics ListLink
to the "Mirror/PZT Characterization
links"
  
  153   Fri Aug 16 17:21:38 2013 KojiGeneralGeneral[OMC002] Build started[Jeff Koji]

The breadboard (SN2) was loaded
on the transportation fixture.
  
  155   Thu Aug 22 15:34:03 2013 KojiOpticsGeneralOMC Cavity side gluing[Koji Jeff]
o BS1, FM1, FM2 prisms were glued
=> This fixed the unstability of
  
  160   Thu Aug 29 18:55:36 2013 KojiMechanicsGeneralI1 OMC top side gluing (UV)The glass components for the I1 OMC top
side were glued by the UV glue.
Breadboard SN#4
  
  161   Fri Aug 30 12:14:50 2013 KojiOpticsGeneralH1 OMC Cavity length adjustmentShort
conclusion: 
The roundtrip cavity length for
 Gouy_FSR_130827.nb.zipP8284343.jpg 
  162   Fri Aug 30 12:22:56 2013 KojiOpticsGeneralH1 OMC Cavity side UV gluingH1 OMC Cavity side optics was glued
on the breadboard
  
  164   Fri Aug 30 12:25:29 2013 KojiGeneralGeneralH1 OMC Invar mount gluingThe Invar Mounting Blocks were glued on
the breadboard.
Serial number #1/2/5/6/7/8 ->
 P8304368.JPGP8304370.JPG 
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