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ID Date Author Typeup Category Subject Text Attachments
  12779   Tue Jan 31 20:25:26 2017 ericqSummaryCDSMinute Trend Koan


  
  12791   Thu Feb 2 18:28:29 2017 ranaSummaryCDSMinute Trend Koanand the song remains the same...

the version of SVN on these workstations
is ahead of the one on the other workstations
  
  12792   Thu Feb 2 18:32:51 2017 ranaSummaryPSLPMC alignmentRe-aligned the beam going into the PMC
today around 5 PM. I noticed that its all
in pitch and since I moved both of the mirrors
  
  12796   Fri Feb 3 11:40:34 2017 ericqSummaryCDS/cvs/cds/caltech/chans back on svn1.6I was able to bring back svn 1.6 formatting
to /cvs/cds/caltech/chans by doing the following
on nodus:
  
  12797   Sat Feb 4 12:00:59 2017 ranaSummaryCDS/cvs/cds/caltech/chans back on svn1.6True - its an issue. Koji and I are updating
zita into Ubuntu16 LTS. If it looks like
its OK with various tools we'll swap
  
  12798   Sat Feb 4 12:20:39 2017 jamieSummaryCDS/cvs/cds/caltech/chans back on svn1.6


  
  12799   Sat Feb 4 12:29:20 2017 jamieSummaryCDS/cvs/cds/caltech/chans back on svn1.6No, not confused on that point. We just
will not be testing OS versions at the 40m
or running multiple OS's on our workstations.
  
  12800   Sat Feb 4 12:50:01 2017 jamieSummaryCDS/cvs/cds/caltech/chans back on svn1.6


  
  12834   Thu Feb 16 13:29:38 2017 gautamSummaryGeneralAlternative Calibration SchemeSummary:

Craig and I have been trying to
put together a Simulink diagram of the proposed
 AltCal.pdf 
  12835   Thu Feb 16 21:55:47 2017 ranaSummaryGeneralAlternative Calibration SchemeQuestion for Craig: What does the SNR of
our lines have to be? IF we're only trying
to calibrate the actuator in the audio band
  
  12842   Tue Feb 21 13:51:35 2017 CraigSummaryGeneralAlternative Calibration SchemeWe get SNR in two ways: the amplitude of
applied force and the integration time. 
So we are limited in two ways: stability
  
  12845   Wed Feb 22 10:16:54 2017 ranaSummaryGeneralAlternative Calibration SchemeOK, but the questions still stands: "   
  12857   Tue Feb 28 21:05:44 2017 ranaSummaryIOOMC Length offset changes MCWFS offsetsThe input offset on the MC length servo
board changes the lock point of the length
loop (by how much? need to calibrate this
  
  12869   Mon Mar 6 12:34:30 2017 johannesSummaryASSASS light injection scenariosWhat we want from the light source for
the AS port light injection:


Frequency control for locking
  
  12892   Fri Mar 17 15:30:39 2017 SteveSummarySUSoplev laser summary updated   
     March  17, 
2017        
 oplev_sums.png 
  12905   Fri Mar 24 12:21:27 2017 gautamSummaryIOOMCL / MCF / CalibrationI repeated this measurement as follows:


Added a filter in the MC_F
filterbank (FM9) to account for the Pomona
 6x 
  12907   Mon Mar 27 12:48:36 2017 ranaSummaryIOOMCL / MCF / CalibrationWhat readouts do we have for the PMC length?
If we could have a calibrated &
whitened error and control signal
  
  12910   Mon Mar 27 20:29:05 2017 ranaSummaryDetCharSummary pages broken againGoing to the summary pages and looking
at 'Today' seems to break it and
crash the browser. Other tabs are OK, but
  
  12912   Mon Mar 27 22:40:44 2017 KojiSummaryIOOMCL / MCF / CalibrationIn http://nodus.ligo.caltech.edu:8080/40m/11793
I posted the calibrated PMC free-running
displcament with/without IMC locked. Unfortunately,
  
  12914   Tue Mar 28 21:06:53 2017 ranaSummaryCDS/cvs/cds/caltech/chans back on svn1.6Debian doesn't like EPICS. Or our XY
plots of beam spots...Sad!

 Screenshot-Untitled_Window.png 
  12933   Mon Apr 10 09:58:35 2017 SteveSummarySUSoplev laser summary updated 




  
  12949   Fri Apr 21 13:59:47 2017 Eric GustafsonSummary 1064 nm Semiconductor Laser Fiber Distribution System and Mirror Tomography1064 nm Semiconductor Laser Fiber
Distribution System and Mirror Tomography

Below threshold these Semiconductor
  
  12963   Wed May 3 16:00:00 2017 gautamSummaryGeneralNetwork Topology Check[johannes, gautam]

I forgot we had done this last
year already, but we updated the control
 Network_topology_3May2017.pdf 
  12977   Mon May 8 21:53:56 2017 ranaSummarySEIattempt to get seismic BLRMS minute trendI tried to
get some minute trend data today, but was
unable to get it from inside or outside the
 BLRMS_trend.png 
  12998   Thu May 18 15:20:29 2017 jigyasaSummarytelescope designTelescope Design for the Gig-E camerasWith the objective of designing a telescope
system for the Gig-E, a system of two lenses
is implemented. A rough schematic of
 6x 
  12999   Fri May 19 19:18:53 2017 KaustubhSummaryGeneralTesting of the new Photo Detectors ET-3010 and ET-3040Motivation:

I got some hands-on-experience
on using RF photodetectors and the Network
 IMG_20170519_173247922.jpgIMG_20170519_173253252.jpgIMG_20170519_173300174.jpgPD_test_setup.png 
  13000   Mon May 22 10:15:14 2017 jigyasaSummarytelescope designLens tubes and object distancesSince the
f numbers of the lenses in the proposed design
with biconvex lenses are a little less than
 Pictures1.pdf 
  13005   Mon May 22 18:20:27 2017 KaustubhSummaryGeneralTesting of the new Photo Detectors ET-3010 and ET-3040I am adding the text files with the data
readings and paramater settings along
with the Bode Plot of the data. I plotted
 ET-3040_test.zipET-3040_test.pdf 
  13020   Tue May 30 17:45:35 2017 jigyasaSummaryCamerasGigE configuration To verify the Pylon Installation on the
shared drive, I tried connecting the Basler
acA640-100gm to the PoE connector and running
 GigEconfiguration.pdf 
  13024   Wed May 31 18:17:28 2017 jigyasaSummaryCamerasGigE configuration This evening I was able to obtain some
images with the same lens on the GigE. 
The problem earlier, as Johannes pointed
 PictureswithPylon.pdf 
  13025   Wed May 31 19:18:53 2017 jigyasaSummaryCamerasGigE configuration And here's another picture of Kaustubh,
my fellow SURF, captured in all his glory
by Rana! :)
 Image__2017-05-31__18-49-37.bmp 
  13080   Mon Jun 26 09:39:15 2017 NaomiSummaryGeneralMeasure transfer functions of Mini-Circuits filtersI have spent my first few days as a SURF
getting experience working with the Network/Spectrum
Analyzer (AG 4395A). After an introduction
 Bode_Plot.png 
  13099   Fri Jul 7 09:03:40 2017 SteveSummaryHistoryas it was in 1994
 
 1994.PDF 
  13116   Thu Jul 13 16:10:34 2017 KaustubhSummaryComputer Scripts / ProgramsCavity Scan Simulation CodeThe code
to produce a cavity scan simulation and then
fitting the data and re-evaluating the initiallt
  
  13126   Wed Jul 19 12:47:43 2017 SteveSummarySUSoplev laser summary updated1103P, sn P893518 of  2013 vintage
is dead at the sus  fiber demo

  
  13128   Wed Jul 19 18:24:15 2017 ranaSummarySUSoplev laser summary updatedThe $1000 HeNe should not be used for illuminating
fibers.

You should purchase these (total
  
  13129   Fri Jul 21 08:05:07 2017 SteveSummarySUSred, blue, green laser diodes orderedAlso ordered 1 ea.

Blue
20mW
  
  13131   Fri Jul 21 19:44:58 2017 NaomiSummaryComputer Scripts / ProgramsUsing PyKat to run FinesseI have been working on using PyKat to run
Finesse. There appear to be several ways
to run an equivalent simulation using Finesse:
  
  13154   Mon Jul 31 20:35:42 2017 KojiSummaryComputersChiara backup situation summarySummary
- CDS Shared files system: backed
up
  
  13159   Wed Aug 2 14:47:20 2017 KojiSummaryComputersChiara backup situation summaryI further made the burt snapshot directories
compressed along with ELOG
11640. This freed up additional ~130GB.
  
  13183   Thu Aug 10 14:13:23 2017 KiraSummaryPEMtemperature sensorGoal is to build a temperature sensor accurate
to 1 mK. Schematic is shown below. This does
not take into account the DC gain that occurs.
 IMG_20170810_121637~2.jpgIMG_20170810_134422~2.jpg 
  13188   Thu Aug 10 21:22:06 2017 ranaSummaryPEMtemperature sensor
Should we use the AD590 or the
AD592? They're sort of the same, but
have slightly different packages and specs.
Given
 tempsensnoise2.pdftempnoise_final.pdf 
  13209   Tue Aug 15 11:50:21 2017 KiraSummaryPEMtemp sensor packaging/mountFor the final packaging/mounting of the
sensor to the seismometer, I have thought
of two options.
  
  13235   Mon Aug 21 20:11:25 2017 johannesSummaryGeneralLoss measurements planThere are three methods we (will soon)
have available to evaluate the round-trip
dissipative losses in the arms that do not
  
  13236   Mon Aug 21 21:26:41 2017 gautamSummaryGeneralLoss measurements planIn case you want to use it, I had profiled
the Lightwave NPRO sometime back, and
we were even using it as the AUX X laser
  
  13241   Tue Aug 22 16:56:54 2017 johannesSummaryGeneralAS laser existing components inventoryI surveyed the lab today to see what we
may need to buy for the AS laser setup.

We
  
  13250   Thu Aug 24 18:02:16 2017 GabrieleSummaryLSCFirst cavity length reconstruction with a neural network1) Introduction

In brief, I
trained a deep neural network (DNN) to recosntuct
the cavity length, using as input only the
 8x 
  13251   Thu Aug 24 18:51:57 2017 KojiSummaryLSCFirst cavity length reconstruction with a neural networkPhenomenal!
  
  13256   Sat Aug 26 09:56:34 2017 GabrieleSummaryLSCFirst cavity length reconstruction with a neural networkUpdate

I included the 55 MHz
sideband and higher order modes in my
training examples. To keep things simple,
 gru_fp_2017_08_25a_50x2_3000_300_20_histogram_1d.png.pnggru_fp_2017_08_25a_50x2_3000_300_20_histogram_2d.png.pngFP_net_reconstruction_1dhistogram.pngFP_net_reconstruction_2dhistogram.png 
  13258   Mon Aug 28 08:47:32 2017 JamieSummaryLSCFirst cavity length reconstruction with a neural network


  
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