| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
380
|
Fri Jun 21 11:47:30 2024 |
Liu | Update | Scripts/Programs | COMSOL simulation on alternative straightened heater elements design | In the previous post, we saw
that for the heater element design with straight |
6x |
|
375
|
Mon Jun 10 14:52:38 2024 |
Tyler | Update | FLIR | CIT FROSTI Analysis Update | [Tyler]
Upon further inspection, one
adjustment was made to the FROSTI profile
analysis: changing the transmission value |
|
|
586
|
Tue Jun 3 11:54:06 2025 |
Cece Ochoa | Update | | CE Cavity Design Update | Update on the design for the CE Cavity Mirrors |
|
|
394
|
Fri Jul 5 14:12:32 2024 |
Liu | Update | Interferometer Simulations | CE BS Mechanical Resonances | The butterfly and drumhead mechanical modes
for the aLIGO BS were calculated in COMSOL.
The resonant frequencies for the two acoustic |
|
|
585
|
Tue Jun 3 11:50:08 2025 |
Pooyan | Update | CDS | CDS update | There are three major issues with the lab's
CDS system that should be addressed. They
are ordered from the highest priority to |
|
|
590
|
Tue Jun 10 12:11:14 2025 |
Pooyan | Update | CDS | CDS update |
The MEDM models issue was fixed.
The issue was that building the c1msc model
alone was not enough and we had to re-build |
|
|
592
|
Wed Jun 11 16:19:37 2025 |
Pooyan | Update | CDS | CDS update |
Fast channels recorded to .gwf frame
files
Had to add a DAQ Channels
block to the c1msc model for those channel |
|
|
321
|
Tue Feb 13 01:26:30 2024 |
Peter | Update | Interferometer Simulations | CARM Power Simulations | Cao's simulations of the circulating power
and gouy phase through a single arm cavity
of the interferometer have been reproduced. |
|
|
199
|
Wed Aug 9 17:35:26 2023 |
Shane | Update | CDS | Binary output chassis finished | Finished the internal wiring for the binary
output chassis today, which completes its
assembly. Also secured ribbon cables and |
|
|
211
|
Wed Aug 16 17:17:02 2023 |
Shane, Jon | Update | CDS | Binary input chassis powering correctly | Binary input chassis passed power-on test,
and is lighting up as expected. Binary output
chassis also successfully powered on. AA |
|
|
197
|
Tue Aug 8 17:03:22 2023 |
Shane, Jon | Update | CDS | Binary input chassis finished | Finished assembly of the binary input chassis
today, including DC on/off switch and LED
installation. external cable assemblies still |
|
|
537
|
Mon Mar 10 21:32:29 2025 |
Nathan | Physics | Electronics | Beam Profiling and PBS Measurements | Beam wasn't diverging, however maybe was about
to diverge when measurements stopped? Will
discuss the PBS measurements and how the |
|
|
80
|
Thu Apr 27 09:48:34 2023 |
Aiden | Summary | General | Batch 12 Bagging | I took batch 12 out of the oven and put them
in a bag and placed the bag inside the clean
room in the first large stainless steel container.
I |
|
|
510
|
Tue Feb 11 08:07:02 2025 |
Luis | Update | VAC | Bake stopped | [Luis, Ma]
Feb/10/25 4:00pm
Bake was stopped. |
|
|
327
|
Fri Feb 16 18:37:28 2024 |
Jon | Update | VAC | Bake ended 6:23 pm | I ended the bake of the UHV system (that
began on Monday) at 6:23 pm today by switching
OFF both PID controllers. The heaters elements |
|
|
25
|
Fri Feb 10 15:15:30 2023 |
Aiden | Update | General | Bagging First Batch | Aiden Bagged and Tagged the first batch of
stainless steel parts shown on the google
spread sheet.
1. Removed two parts from |
|
|
324
|
Tue Feb 13 12:26:23 2024 |
Tyler | Update | Interferometer Simulations | BS Code Update | I reproduced Cao's CE beamsplitter code
(see below for example plots). I received
the current info on the beamsplitter parameters |
|
|
396
|
Mon Jul 8 10:39:14 2024 |
Xuejun | Update | FLIR | Average Temperature Profile | After taking data for each of the individual
heater elements, I imported them into python
and overlayed them to produce an average |
|
|
191
|
Thu Aug 3 18:03:42 2023 |
Shane, Jon | Update | CDS | Anti-Aliasing chassis complete | We finished installing the internal power
supply cables in the anti-aliasing chassis
today, which concludes its assembly. Work |
|
|
154
|
Thu Jul 13 15:31:21 2023 |
Jon | Update | General | Ant traps placed around lab | In response to reports that ants have been
observed in the lab, I placed five ant bait
traps around the room today. Each is sitting |
|
|
155
|
Thu Jul 13 16:59:03 2023 |
Jon | Update | General | Ant traps placed around lab | Update: After seeing the
strong response to the first set, I redistributed
them to the hottest spots and added one more |
|
|
598
|
Tue Jun 24 13:47:58 2025 |
Liu | Update | Interferometer Simulations | Alternative FROSTI A# optimization approach | Alternative FROSTI A# optimization approach |
|
|
63
|
Tue Apr 4 16:43:53 2023 |
Jon | Update | VLC Electronics | Additional Thorlabs PDA10A2 | I ordered a second PDA10A2 and mounting post
+ spacer (which puts the aperture at the
VLC's standard 3" beam height). These arrived |
|
|
14
|
Wed Dec 14 18:34:33 2022 |
Jon | Configuration | Electronics | Adapter for 532 nm laser power supply | I installed an EU-to-US plug adapter for the
532nm laser's 9V power supply. I then re-measured
the laser's power with the correct supply |
|
|
142
|
Mon Jul 3 16:26:21 2023 |
Cao | Infrastructure | DAQ | Access and control Red Pitaya remotely and run it on local machine | [Cao]
To access and control the Red
Pitaya using Python locally on a machine
within the local network, one should follow |
|
|
399
|
Tue Jul 9 18:19:50 2024 |
Shane | Update | CDS | ADC-DAC loopback testing and IOLAN installation | [Shane, Jon]
Finished ADC-DAC loopback
testing today (see attached xlsx file or
access directly here). |
|
|
410
|
Tue Jul 16 18:43:07 2024 |
Shane | Update | CDS | ADC-DAC loopback testing and IOLAN installation |
UPDATE:
Follow up ADC-DAC loopback testing
now complete, matching all the ADC channels
to a single DAC channel, and then matching |
|
|
285
|
Mon Dec 4 21:27:53 2023 |
Shane | Update | CDS | ADC-DAC loopback test results | Here are the test results from today's ADC-DAC
loopback tests. Channels 14 and 15 were the
only ones behaving abnormally. Not sure what |
|
|
176
|
Thu Jul 27 14:46:55 2023 |
Shane, Jon | Update | Electronics | AA chassis DC on/off switch assembled | Made the first DC on/off switch assembly today
and installed in anti-aliasing chassis. Second
switch assembly to be completed later. |
|
|
247
|
Fri Oct 27 15:28:30 2023 |
Shane | Update | CDS | AA and AI chassis for CyMAC powered on and functional | CyMAC updates: Switched out the faulty power
regulator boards in the Anti-Aliasing and
Anti-Imaging chassis. Both chassis are now |
|
|
577
|
Tue May 13 12:41:06 2025 |
Tyler | Update | TCS | A# Profiles Update | Slides on the A# ITM FROSTI profile modeling
efforts can be found here. |
|
|
602
|
Tue Jul 1 12:39:42 2025 |
Tyler | Update | TCS | A# FROSTI Profile Optimization Update | [Tyler, Liu]
Slides |
|
|
632
|
Tue Aug 19 12:33:59 2025 |
Pooyan | Update | TCS | A# BS Update | |
|
|
209
|
Tue Aug 15 16:10:06 2023 |
Celeste | Update | TCS | 8/15/2023 Simulation Progress | |
|
|
204
|
Fri Aug 11 10:57:20 2023 |
Celeste | Update | TCS | 8/11/23 Simulation Progress | |
|
|
200
|
Thu Aug 10 14:13:38 2023 |
Celeste | Update | TCS | 8/10/23, Simulation Graphical Progress | |
|
|
88
|
Mon May 1 18:56:57 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | I've configured the two PDA's to the Red Pitaya.
I put a 50 ohm resistor connector to each
red pitaya input port. This was because the |
|
|
89
|
Tue May 2 15:55:33 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | I changed the 1/2 wave plate from the lens
mount to the rotational optic mount. This
allowed me to rotate the 1/2 wave plate, |
|
|
92
|
Thu May 4 14:01:10 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | I adjusted the rotational mount of the wave
plate to see if the power can be 100% coupled
into either S or P polarization. The images |
|
|
99
|
Tue May 16 11:56:33 2023 |
Peter | Update | VLC Electronics | 532nm Intensity Measurement | With the configuration the exact same as before,
I used the Jupyter notebook in the red pitaya's
development package to collect data from |
|
|
101
|
Thu May 18 14:07:08 2023 |
Peter | Update | VLC Update | 532nm Intensity Measurement | I figured out a method in which to capture
power measurements including the initial
seconds in which the beam is first turned |
|
|
36
|
Tue Feb 28 19:31:05 2023 |
Peter | Update | VLC Electronics | 532 M2 Measurements | Took M2 measurements today. Configuration:
Lens 1 (f = 50mm) at 0mm. Lens 2 (f = 150mm)
at 200mm, camera at 350mm. The laser beam |
|
|
37
|
Tue Feb 28 19:33:51 2023 |
Peter | Update | | 532 M2 Measurements | Y axis of plot in units of micrometers. X
axis in units of millimeters. |
|
|
48
|
Thu Mar 9 12:03:59 2023 |
Peter | Update | VLC Electronics | 532 M2 Measurements | Took more M2 Data today. Picture of the optical
set up is shown below. lens1 f = 100mm, lens2
f = 50mm, lens3 f = 150mm. There was a nice |
|
|
50
|
Fri Mar 10 12:08:09 2023 |
Peter | Update | VLC Electronics | 532 M2 Measurements | Took more M2 laser data today. The configuration
is the same as before except now the beam
camera is the only component moving. Pictures |
|
|
61
|
Tue Apr 4 09:39:58 2023 |
Peter | Update | VLC Electronics | 532 M2 Measurements | Final M squared measurements were taken Wednesday,
3/29/23 by Peter and Ryan Hinosawa. 5 separate
sets of data were taken, and upon discussion, |
|
|
230
|
Fri Sep 29 11:53:54 2023 |
Shane | Update | Cleanroom | 5 zone particle count measurement in cleanroom | Today's 5 zone measurement of cleanroom particulate
concentration is attached |
|
|
270
|
Fri Nov 17 14:06:01 2023 |
Shane | Update | Cleanroom | 5 zone particle count | Here's today's 5 zone particle count measurement
for the cleanroom. Zone 5 (closest to back
wall by fire cabinet) is still above the |
|
|
260
|
Thu Nov 9 19:06:46 2023 |
shane | Update | Cleanroom | 5 zone cleanroom measurement | Here's today's five zone measurement, taken
~5 hours after the cleaning. Zone 5 (closest
to fire cabinet and back wall) is a bit over |
|
|
619
|
Tue Jul 29 12:30:00 2025 |
Christina | Update | TCS | 260 hour ADC update | [Ma, Christina, Tyler]
ADC CyMAC
260 hr, 8192Hz sampling rate channels V3
and Vref6 |
|