ligo-ex ligo-ds
  Richardson Lab Experimental Log, Page 5 of 13  Not logged in ELOG logo
ID Date Author Type Categorydown Subject Text Attachments
  615   Tue Jul 22 12:20:29 2025 ChristinaUpdateTCS  [Ma, Christina, Tyler] 
 Figure
1 shows the following PSDs for channels 0-15
from the 14 hour test. Figure 2 shows the
 PSDch0-15.pngCSD2hz_16hz.png 
  617   Tue Jul 29 11:45:19 2025 MapleUpdateTCSMeeting update   Maple_TCS_update_jul_29.pdf 
  619   Tue Jul 29 12:30:00 2025 ChristinaUpdateTCS260 hour ADC update [Ma, Christina, Tyler] 

ADC CyMAC
260 hr, 8192Hz sampling rate channels V3
and Vref6
 CSD_06_28_25_270hr.png 
  624   Mon Aug 11 22:19:50 2025 ChristinaUpdateTCSRed Pitaya Data Streaming [Ma, Tyler, Christina] 

 This past week, we were able to
set up the data streaming for continuous
 3.png3-1.png 
  627   Tue Aug 12 13:28:00 2025 TylerUpdateTCSRH Fenicsx v. HV   Profile_comparison.png1W_diff.png50W_diff.png 
  631   Tue Aug 19 12:08:40 2025 ChristinaUpdateTCSRP Initial vs CyMAC Plot Comparisons[Tyler, Ma, Christina]


These are the
frequency averaged and veto binned plots
for the initial Red Pitaya and CyMAC systems.
 11hzCSD.png11hzstrain.png 
  632   Tue Aug 19 12:33:59 2025 PooyanUpdateTCSA# BS Update   A#_beamsplitter_thermal_lensing.pdf 
  636   Tue Aug 26 13:09:03 2025 TylerUpdateTCSO6 RH Update[Tyler]

 Below are slides giving an
update on RH O6 design progress. 

Slides
  
  637   Tue Sep 2 11:53:34 2025 TylerUpdateTCSRIN Infrastructure Update (09/02/2025)[Ma, Tyler]


Below are slides discussing
RIN infrastructural updates related to the
CyMAC.
  
  642   Tue Sep 9 12:06:38 2025 TylerUpdateTCSRH O6 UpdateSlides   
  162   Tue Jul 18 14:13:46 2023 Sophia UpdateScripts/ProgramsUpdate on Laser Noise Data Collection and AnalysisWe [Sophia and Tyler] have found a code which
will partition our data and generate PSD's
and CSD's automatically. We are now in the
 6x 
  174   Thu Jul 27 11:28:36 2023 Sophia UpdateScripts/ProgramsUpdate on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD PlotsThis week I have successfully been able to
implement our dynamic CSD and PSD plotting
code, but along the way I encountered a few
 Screenshot_2023-07-26_at_3.02.05_PM.pngScreenshot_2023-07-26_at_1.38.47_PM.pngScreenshot_2023-07-27_at_1.36.24_PM.pngScreenshot_2023-07-27_at_1.33.01_PM.png 
  175   Thu Jul 27 14:11:42 2023 SophiaUpdateScripts/ProgramsUpdate on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD PlotsHere's a screen recording of the dynamic raw
data and PSD/CSD plots as they are now. Will
begin working on implementing a code to generate
 Screen_Recording_2023-07-27_at_5.08.25_PM.mov 
  183   Mon Jul 31 19:27:30 2023 SophiaUpdateScripts/ProgramsUpdate on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD PlotsAn update on the CSD/PSD code: 

The code
is now taking a dynamic average of the points,
and that has significantly reduced the noise
 Screenshot_2023-07-31_at_10.18.44_PM.pngScreen_Recording_2023-07-31_at_10.16.31_PM.movScreen_Recording_2023-07-31_at_10.19.55_PM.movScreenshot_2023-07-31_at_10.21.44_PM.pngScreenshot_2023-07-31_at_10.26.34_PM.png 
  186   Tue Aug 1 15:44:31 2023 SophiaUpdateScripts/ProgramsUpdate on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD PlotsWe have identified two problems facing the
intensity noise calculations, which we are
working to solve. 

The first of these
 6x 
  194   Mon Aug 7 15:36:18 2023 SophiaUpdateScripts/ProgramsUpdate on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD PlotsToday I was able to fix the red pitaya's plotting
problem, and get my code to recognize driving
frequencies from the function generator to
 7x 
  196   Tue Aug 8 16:47:11 2023 SophiaUpdateScripts/ProgramsUpdate on Dynamic CSD and PSD PlotsWe have fixed our rapid plotting error, and
realized that this has not been affecting
our data intake! Below is a video of the
 Screen_Recording_2023-08-08_at_7.42.30_PM.movScreenshot_2023-08-08_at_2.22.50_PM.pngScreenshot_2023-08-08_at_5.16.08_PM.png 
  206   Tue Aug 15 10:35:00 2023 SophiaUpdateScripts/ProgramsUpdate on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD PlotsI have successfully added a button to my graphics,
but it has posed a strange issue with the
CSD and PSD values. When I plot my original
 Screenshot_2023-08-14_at_8.18.49_PM.pngScreenshot_2023-08-14_at_8.18.43_PM.pngScreen_Recording_2023-08-14_at_8.17.50_PM.movScreenshot_2023-08-15_at_1.24.54_PM.pngScreenshot_2023-08-15_at_1.32.30_PM.png 
  207   Tue Aug 15 13:32:37 2023 SophiaUpdateScripts/ProgramsUpdate on Laser Noise Data Collection and Analysis: Dynamic CSD and PSD PlotsI have now fixed all issues that I was having
this morning, and have added text boxes which
show the peak values of both PSD's and the
 Screenshot_2023-08-15_at_4.27.58_PM.pngScreenshot_2023-08-15_at_2.21.18_PM.pngScreenshot_2023-08-15_at_5.25.05_PM.png 
  249   Mon Oct 30 11:03:56 2023 TylerUpdateScripts/Programs 
FLIR: After some adjustments, the plot
generated from the FLIR measurements look
much more symmetric (see attachment). There
 Screenshot_2023-10-23_at_12.39.05_PM.png 
  317   Tue Feb 6 22:40:25 2024 MichaelUpdateScripts/ProgramsLong Crab 1 Design Created In GtraceWorked on and completed the python code for
the simulation of the Long Crab 1 layout
for Cosmic Explorer basing off of Pooyan's
 Long_Crab1.pnglong_crab_1_desmos.PNG 
  376   Fri Jun 14 13:32:13 2024 LiuUpdateScripts/ProgramsCOMSOL simulation on rectangular heater elements designI have been looking at the feasibility
of an alternative heater element design for
FROSTI that replaces the original ring-like
 6x 
  380   Fri Jun 21 11:47:30 2024 LiuUpdateScripts/ProgramsCOMSOL simulation on alternative straightened heater elements design In the previous post, we saw
that for the heater element design with straight
 6x 
  387   Thu Jun 27 11:09:14 2024 LiuUpdateScripts/ProgramsStraight edge STEP files and ray loss analysis Drawings and CAD models of the straight-edge
designs are exported, and are visualized
in SOLIDWORKS. Two are attached. One is a
 edge_CAD_8x2_step.PNGedge_CAD_step.PNGIrradiance_frontheater.pngIrradiance_profile.pdf 
  447   Mon Sep 23 15:11:21 2024 TylerUpdateScripts/ProgramsEffective Emissivity Analysis and RIN Update A quick update on the effective emissivity
analysis for the CIT FROSTI testing: 

 
I was able to (roughly) match
 OPD_Plot.pngTemp_emiss_plot.pngrin_photodectors.pngRIN_setup.jpg 
  521   Sun Feb 23 16:00:07 2025 Luke UpdateScripts/ProgramsRingheater modeling UpdateThese are some plots:
The first shows the convergence of
the 02 mode reducing the size of the mesh.
 mesh_convergence.pngnumerical_error_in_innerproduct_of_zernike_basis_elemets.png 
  541   Sun Mar 23 15:39:06 2025 Luke JohnsonUpdateScripts/ProgramsRingheater Location optimizationAttached are some plots that show a new parameter
sweep with a finer mesh then before. I have
also been able to get a heatmap of power
 _4-4.png_40.png02.pngHOM_power.svg 
  543   Mon Mar 31 11:26:45 2025 Luke JohnsonUpdateScripts/ProgramsHeatmaps of power delivery performance These plots show the required temperature
to release 100W of power and the efficiency
of a particular configuration with half-width
 temp_required.pngefficiency.png 
  550   Tue Apr 8 12:15:59 2025 Luke UpdateScripts/ProgramsUpdated optimization plot   HOM_scattering_w__nominal_and_min.png 
  557   Tue Apr 22 08:00:39 2025 Luke UpdateScripts/ProgramsThermal optimization modeling 40kgI have redone the width and location optimization
with a 40kg test mass. This was to see where
the nominal ring heater would fall in this
 40kg_into_HOM.png 
  561   Fri Apr 25 09:09:03 2025 Luke UpdateScripts/ProgramsUpdate to optimization plotsI have calculated the curvature of the surface
plots and created a heat map out of the data.
I have also created a contour plot of them
 HOM_scattering_100kg_modified.pngcurvature_100kg.pnginitial_contour_plot_with_hom_and_curvature.pngtemp_quality_(log10_ratio).png 
  562   Fri Apr 25 19:18:10 2025 Luke UpdateScripts/ProgramsNew optimization plotsI have created two more plots. One on the
transmitted power for a specific configuration.
This was done by taking the product of the
 effective_power.pngproximity.png 
  569   Sun May 4 18:17:45 2025 Luke UpdateScripts/ProgramsRingheater modeling UpdateSlides

I have changed some properties
of the thermal model and am re-running the
  
  575   Sun May 11 19:36:42 2025 Luke UpdateScripts/ProgramsNew optimization plotsSlides
I have re-run the optimization plots
with the changes mentioned last week. 
  
  581   Mon May 26 11:15:28 2025 LukeUpdateScripts/ProgramsUpdate to optimization plotsI have created some new optimization plots.
I have also started on a model like the previous
Desmos model, but in python. 
Slides
  
  584   Mon Jun 2 09:45:06 2025 Luke UpdateScripts/ProgramsRingheater modeling UpdateSlides
I have added some slides to my meeting
updates. The updates include: my choice in
  
  134   Tue Jun 27 14:04:42 2023 Sophia A. UpdateMeasuring Noise in InterferometerInterferometer set up and connection to red pitayaToday we (Sophia and Tyler) constructed the
set-up for the electrical noise calculation
that I will be conducting this summer. I
 IMG_6756.jpgIMG_6754.jpgIMG_6755.jpg 
  10   Wed Aug 17 16:04:30 2022 Phoebe ZylaSummaryLoreTesting the Cartridge Heater and Collecting FLIR DataWe have tested the heater to find emissivity,
mounted the heater system to the optical
table, and have taken irradiance maps of
 Screenshot_(74).pngScreenshot_(75).pngScreenshot_from_2022-08-15_11-24-40.pngAcquisitionImage(Aug-15-2022_14_16).jpg 
  274   Tue Nov 21 14:47:24 2023 TylerUpdateLore1129 Workbench Assembly Update 1
[Tyler, Shane, Mohak, Cynthia, Luke,
Michael, Luis]


Started assembly of the workbench
 IMG_7569.jpgIMG_7568.jpg 
  278   Mon Nov 27 14:22:30 2023 TylerUpdateLore1129 Assembly Update[Tyler, Michael, Luke, Cynthia]


The
tabletops have been attached to the workbench
frames. Unfortunately, one of the tabletops
 IMG_7669.jpgIMG_7668.jpg 
  281   Thu Nov 30 13:50:32 2023 TylerUpdateLoreWorkbench Assembly Completed[Tyler, Luke, Aiden]



The workbenches
are now completely assembled and put into
their final places. Additionally, the tool
 IMG_7686.jpg 
  321   Tue Feb 13 01:26:30 2024 PeterUpdateInterferometer SimulationsCARM Power SimulationsCao's simulations of the circulating power
and gouy phase through a single arm cavity
of the interferometer have been reproduced.
 Scenario_3_CARM.pdfScenario_3_CARM_Gouy.pdf 
  322   Tue Feb 13 04:05:32 2024 MichaelUpdateInterferometer SimulationsShoelaces 1 Layout Simulated in GTraceI've worked on and have completed a first
simulation of Cosmic Explorer's Shoelaces
1 layout. This is based off of Pooyan's original
 shoelaces1_dxf.JPGshoelaces1_desmos.JPG 
  324   Tue Feb 13 12:26:23 2024 TylerUpdateInterferometer SimulationsBS Code Update I reproduced Cao's CE beamsplitter code
(see below for example plots). I received
the current info on the beamsplitter parameters
 thickness1.pdfbs_opd_homloss_h6cm_w2cm.pdf 
  326   Tue Feb 13 13:02:41 2024 PooyanUpdateInterferometer SimulationsCacity sacn of Fabry-Perot Created a simple model of Fabry-Perot cavity
in SIS, and did a cavity scan. Total power
in the cavity, 00 mode, and HOMs is measured.
 IFOSim_update_2_13_24.pdf 
  334   Wed Feb 21 23:15:07 2024 MichaelUpdateInterferometer SimulationsLong Shoelaces 1 Layout Created in Gtrace and Fixed Ghosting in BeamsplitterI have created the long shoelaces 1 layout
for cosmic explorer using gtrace, a slight
modification from the shoelaces 1 layout
 long_shoelaces1_desmos.JPGAR_side_with_reflection.PNGAR_side_without_reflection.PNG 
  342   Tue Feb 27 03:26:28 2024 MichaelUpdateInterferometer SimulationsReverse aLIGO Layout Created in GtraceI've created the simulation for reverse aLIGO
layout in gtrace. Attached are the desmos
model and the output dxf file. From here
 reverse_aligo_desmos.JPGreverse_aligo_dxf.JPG 
  343   Tue Feb 27 09:06:29 2024 Cynthia UpdateInterferometer Simulationscavity scan with higher order input laserI performed a few cavity scan with the inputing
laser with a different mode (not pure 00).
For each laser I included a graph for just
 ligoPre_2_27.pdf 
  357   Sun Apr 7 13:42:51 2024 MichaelUpdateInterferometer SimulationsUpdate on status of gtrace project[Pooyan, Michael]

After meeting and
discussing the current state of our work
with Prof. Fulda a few weeks ago, we have
 Sequential_beam_trace_crab1.pngangle_of_incidence_yaml_example.png 
  358   Mon Apr 8 14:43:29 2024 PooyanUpdateInterferometer SimulationsSIS update single and coupled cavities[Pooyan, Cynthia]

Attached is a brief
recap PDF file. A video file showing separate
HOMs plots for the cavity scan with ETM08
 IFOSim_SIS__update_4_8_24.pdfScreen_Recording_2024-03-31_at_2.46.29_AM.mov 
ELOG V3.1.3-7933898