ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
604
|
Fri Aug 11 10:42:05 2023 |
Camille Makarem | Optics | Characterization | power budget measurements | [Camille, Thejas]
10 August 2023
|
|
|
605
|
Mon Aug 14 07:52:11 2023 |
Camille Makarem | Optics | General | 2nd cleaning of the cavity optics | [Camille, Thejas]
11 August 2023
|
|
|
606
|
Mon Aug 14 14:13:34 2023 |
Camille Makarem | Optics | General | mode-mismatch in the cavity | For Set 1 of the data in https://nodus.ligo.caltech.edu:8081/OMC_Lab/604,
VREFL(unlocked) = 3.226V
VREFL(locked) = 0.13V |
|
|
607
|
Tue Aug 15 16:15:13 2023 |
Camille Makarem | Optics | General | new power measurements (after cleaning) | [Camille, Thejas, Masayuki]
This afternoon we finished the realignment |
|
|
608
|
Thu Aug 17 07:57:12 2023 |
Camille Makarem | Optics | General | mode-matching in the cavity | [Camille, Thejas, Koji]
16 August 2023
|
|
|
609
|
Thu Aug 17 09:06:51 2023 |
Camille Makarem | Optics | General | realignment of beam path through mode-matching lenses | [Camille, Thejas]
16 August 2023
|
|
|
610
|
Mon Aug 21 07:59:40 2023 |
Camille Makarem | Optics | General | cavity realignment and new power measurements | [Camille, Thejas]
18 August 2023
|
6x |
|
611
|
Mon Aug 21 15:02:32 2023 |
Koji | Optics | General | cavity realignment and new power measurements | This is WOW!
Excellent mode matching work.
The measurement is still |
|
|
612
|
Mon Aug 21 16:05:07 2023 |
Camille Makarem | Optics | Characterization | cavity realignment and new power measurements | Thanks for clarifying that. We will repeat
some power measurements and check the output
offset voltage to the laser. |
|
|
613
|
Mon Aug 21 16:15:09 2023 |
Koji | Optics | Characterization | cavity realignment and new power measurements | You should proceed to the next steps. You'll
need to repeat the power measurements before
the bonding. Next time, the measurement procedure |
|
|
614
|
Tue Aug 22 10:25:10 2023 |
Thejas | Optics | Characterization | cavity realignment and new power measurements | Thanks Koji, we did observe this discrepency
and thought that the code normalizes the
power/voltage readings to the reference power |
|
|
615
|
Tue Aug 22 15:51:15 2023 |
Koji | General | General | Inventory: C30655 PDs | During the OMC(004) assembly, the stock
situation for Excelitas C30655 PDs was checked.
PD Cage H |
|
|
616
|
Wed Aug 23 07:48:14 2023 |
Camille Makarem, Tejas | Optics | Characterization | FSR and TMS measuarement of A+ build | [Camille, Thejas]
22 August 2023
|
|
|
617
|
Thu Aug 24 12:30:58 2023 |
Camille Makarem, Thejas | Optics | Characterization | FSR and TMS analysis | Attached are the analysis results from
the measurements in 616.
FSR: 264.657354 +/- 0.003444 MHz |
|
|
618
|
Thu Aug 24 16:09:46 2023 |
Camille Makarem | Optics | General | PZT length-to-angle coupling | [Camille, Thejas]
We checked the length-to-angle coupling |
|
|
619
|
Fri Aug 25 22:01:29 2023 |
Koji | Facility | General | LED Strip installation plan | Here are the dimensions of the LED strips
and their gaps. |
|
|
620
|
Tue Aug 29 16:54:46 2023 |
Koji | Facility | General | LED Strip installed | [JC, Koji]
We've installed the LED strips
on the HEPA frame. We tried not to touch |
|
|
621
|
Wed Aug 30 12:38:52 2023 |
Thejas | Optics | General | A+ OMC #1: HOM spectrum | Examination into bonding template confimred
the limitation of space available to
change cavity length by at least 10 mm to |
|
|
622
|
Thu Sep 14 14:26:51 2023 |
Camille Makarem | Electronics | Characterization | Remaining PZT tests | PZTs 31, 32, 35, 40 and 45 have had their
DC responses measured (pre-reliability test)
and have been through the reliability test |
|
|
623
|
Mon Sep 18 15:08:26 2023 |
Thejas | Optics | General | OMC HEPA enclosure filter fan speed | I went in lab today and turned the HEPA
filter (clsoe to the entrance) to high since
we are not doing any measurements at the |
|
|
624
|
Mon Sep 18 15:09:55 2023 |
Thejas | Optics | CAvity Bonding | Piezo inertial micromaters | New piezo actuated micrometers from thorlabs
arrived last week.
4 x MPIA10 |
|
|
625
|
Mon Nov 13 23:57:55 2023 |
Koji | Electronics | Loan / Lending | Agilent 4395A Network Analyzer -> WB251 | Aidan and Hanna wanted to use the Agilent
4395A Network Analyzer at the WB251.
All the connections were removed. |
|
|
626
|
Mon Nov 27 21:05:51 2023 |
Koji | General | General | Inventory: C30655 PDs | The Cage H&I, as well as OMC DCPD bag,
were brought to the 40m for the 40m BHD.
|
|