| ID |
Date |
Author |
Type |
Category |
Subject |
Text |
 |
|
513
|
Fri Mar 17 15:01:21 2023 |
Koji | Optics | Characterization | A+ OMC Curved mirror radius of curvature | Thanks Koji, the lenses available in the
cabinet in the lab actually sufficed.
|
|
|
512
|
Wed Mar 15 17:07:35 2023 |
Koji | Optics | Characterization | A+ OMC Curved mirror radius of curvature | I hope you can find useful lenses from
the lens kit in the cabinet. If you need
more lenses and mounts, talk to our students |
|
|
511
|
Wed Mar 15 15:28:24 2023 |
Thejas | Optics | Characterization | A+ OMC Curved mirror radius of curvature | Thanks for teh comment Koji. Yes, I did
see this effect by comparing the beam sizes
with and without the curved mirror. But the |
|
|
510
|
Tue Mar 14 20:06:03 2023 |
Koji | Optics | Characterization | A+ OMC Curved mirror radius of curvature | If the mirror has the RoC, it works as
a lens. And you should be able to see the
effect in the beam profile. |
|
|
509
|
Tue Mar 14 18:24:03 2023 |
Thejas | Optics | Characterization | A+ OMC Curved mirror radius of curvature | Today, I tried to measure the radius of
curvature of the curved mirror using the
input beam for the OMC test set-up. It was |
|
|
508
|
Tue Mar 14 12:12:41 2023 |
Koji | Optics | Characterization | A+ OMC curved mirror characterization | RoC: 2.65m ! Interesting. I'll wait
for the follow-up analysis/measurements.
The RoC may be dependent on the area (diameter) |
|
|
507
|
Tue Mar 14 10:41:06 2023 |
Thejas | Optics | Characterization | A+ OMC curved mirror characterization | [Camille, GarriLynn, Stephen, Thejas]
Folllowing the replacement of the
spherical transmission / reference mirror |
|
|
506
|
Fri Mar 10 11:12:57 2023 |
Thejas | Optics | Characterization | A+ OMC Curvature minimum of curved optics | [GariLynn, Stephen, Thejas]
Yesterday, we placed an iris (borrowed
from OMC Lab) infront of the spherical transmission |
|
|
505
|
Fri Mar 10 10:23:08 2023 |
Thejas | Optics | Characterization | A+ OMC curved mirror radius of curvature | OMC test set-up
Yesterday, laser beam output from
the fibre follwoing teh mode-matching lenses |
|
|
504
|
Wed Mar 8 17:27:51 2023 |
Thejas | Optics | Characterization | A+ OMC Curvature minimum of curved optics | [Stephen, Thejas]
Today, a more rigorous effort was
made to re-measure the position of the optics |
|
|
503
|
Tue Mar 7 23:00:16 2023 |
Thejas | Optics | Characterization | OMC Lab clean up | Today, Koji and I cleaned up the the lab
space and made some space on the
optical table for radius of curvature measurement |
|
|
502
|
Tue Mar 7 10:20:55 2023 |
Thejas | Optics | Characterization | A+ OMC Curved mirror radius of curvature | [Camille, Stephen, Thejas]
Stephen returned the curved mirror
#6 to Liyuan for point transmission measurement. |
|
|
501
|
Mon Mar 6 16:02:56 2023 |
Thejas | Optics | General | OMC test setup locking | On Feb 16, Camille and I attampted at locking
the OMC cavity. It was quick to re-align
the beam to the cavity (by using only the |
|
|
500
|
Mon Mar 6 12:25:08 2023 |
Koji | Facility | General | HEPA Enclosure improvement | Chub, JC, and co worked on the HEPA enclosure
improvement. |
|
|
499
|
Wed Mar 1 10:23:10 2023 |
Thejas | Optics | Characterization | A+ OMC curved mirror characterization | [Camille, Thejas, Stephen]
Yesterday, efforts were made to
measure ROC of curved mirrors (#6) in the |
|
|
498
|
Mon Feb 27 17:40:27 2023 |
Thejas | Optics | Characterization | A+ OMC curved mirror characterization | [Camille, Stephen, Thejas]
Today, before the ZYGO lab was
cleaned and prepared for the cureved mirrors' |
|
|
497
|
Fri Feb 17 17:41:57 2023 |
Thejas | Electronics | Characterization | A+ OMC Piezos wedge angle | [Camille, Stephen, Thejas]
PZT model: Noliac 2124
Qty: 18 (Sr. No. 30 - 48) |
|
|
496
|
Fri Feb 17 17:25:39 2023 |
Thejas | Optics | Characterization | A+ OMC Breadboard measuerements | Yesterday we also measured weight and dimensions
of breadboard. Error for the following measurements
is same as the least count of the instruments |
|
|
495
|
Fri Feb 17 17:11:28 2023 |
Thejas | Optics | Characterization | A+ OMC beam-splitter prisms wedge angle measurement | [Camille, Stephen, Thejas]
Yesterday we measured wedge angle |
11x |
|
494
|
Wed Feb 15 17:40:21 2023 |
Thejas | Optics | Characterization | A+ OMC perpendicularity of hole prisms | [Camille, Stephen, Thejas]
Contnuing the efforts to measure
and check perpendicularity: tombstone prisms |
20x |
|
493
|
Wed Feb 15 16:00:46 2023 |
Stephen | Electronics | General | OMC cables #4 inspected | Inspection
Updated ICS (Shipment-12578) and
moved those parts to Storage-9482. |
|
|
492
|
Tue Feb 14 22:52:35 2023 |
Thejas | Optics | Characterization | A+ OMC Prism perpendicularity of HR Prisms and BS | [Camille, Stephen, Thejas]
Continuing with the efforts to
measure the perpndicularity. |
18x |
|
491
|
Tue Feb 14 10:45:00 2023 |
Thejas | Optics | Characterization | A+ OMC Prism perpendicularity | [Camille, Stephen, Thejas]
Following the wedge angle measurements
of the prisms, perpendicularoty of their |
27x |
|
490
|
Thu Feb 9 15:54:41 2023 |
Thejas | Optics | Characterization | A+ OMC, Parallelism of HR Prisms | [Camille, Thejas, Stephen]
Continuing yesterday's efforts
to measure the wedge angle of the back surface |
19x |
|
489
|
Wed Feb 8 16:10:52 2023 |
Stephen | Optics | Characterization | A+ OMC, Parallelism of HR Prisms | [Camille, Thejas, Stephen]
We set up the white light autocollimator
in the Downs B119 cleanroom. (Nippon Kogaku, |
7x |
|
487
|
Sat Feb 4 03:33:22 2023 |
Koji | General | General | OMC Lab Inventory | Attachment 1: North Cabinet 2nd from the
left
Attachment 2: North Cabinet 3rd |
|
|
486
|
Sat Feb 4 03:30:02 2023 |
Koji | Electronics | General | OMC cables #4 arrived | The OMC cables #4 arrived on Feb 3rd. (See
Attachment)
This shipment included two DCPD |
|
|
485
|
Sat Feb 4 03:22:46 2023 |
Koji | Facility | General | Ready for the HEPA enclosure expansion | HEPA is quite low for a tall person and
also the curtain on the back of us is always
heavy. It's very tough for anyone to |
|
|
484
|
Sat Feb 4 03:16:10 2023 |
Koji | Optics | General | OMC #4: One Invar block bonded with tilt | The attached photo shows the resulting
bond spread.
|
|
|
483
|
Thu Feb 2 03:09:41 2023 |
Koji | Optics | General | OMC #4: One Invar block bonded with tilt | [Camille, Thejas, Koji]
We added a reinforcement bar at
the back of the invar block which had the |
|
|
482
|
Wed Feb 1 01:44:14 2023 |
Koji | General | General | OMC (004) plan | 2/1 2:30PM~ Bonding reinforcement (Last
EP30-2 gluing)
2/2 1:00PM~ Peripheral attachment |
|
|
481
|
Wed Feb 1 01:39:41 2023 |
Koji | Mechanics | General | DCPD housing / QPD housing | Inserted 4-40 and 2-56 helicoils into the
DCPD/QPD housings for the 4th OMC. The retainer
caps were also fastened to the housings. |
|
|
480
|
Wed Feb 1 01:33:03 2023 |
Koji | Mechanics | General | 5th OMC Transport Fixture | The transport fixture was brought to the
40m clean room to use as an assembly reference. |
|
|
479
|
Sat Jan 28 00:46:21 2023 |
Koji | Mechanics | General | OMC #4: Replaced the locks of the transport fixture | Yesterday, we noticed that we could not
close the transport fixture for OMC #4. We
could not fully rotate the knobs of the locks. |
|
|
478
|
Sat Jan 28 00:38:56 2023 |
Koji | Mechanics | General | OMC #1 cable bracket replacement / OMC #1 repair completed | The AL metal bracket was replaced with
a PEEK version.
Attachments 1/2: Before the replacement. |
|
|
477
|
Thu Jan 26 23:46:13 2023 |
Koji | Optics | General | OMC #1 input beam dump bonding | A beam dump was stacked on the base of
the previous beam dump. The angle was determined
so that the main transmission goes through |
|
|
476
|
Thu Jan 26 23:16:35 2023 |
Koji | Optics | Configuration | OMC #4: Top side bonding. | [Camille, Koji]
|
|
|
475
|
Thu Jan 26 23:07:14 2023 |
Koji | Optics | General | OMC #4: Input beam dump bonding | [Camille, Koji]
During the second UV epoxy session,
we did not bond the input beam dump. This |
|
|
474
|
Thu Jan 26 22:57:19 2023 |
Koji | Optics | General | OMC #4: One Invar block bonded with tilt | [Camille, Koji]
The bottom side template was separated
into two pieces and successfully removed |
|
|
473
|
Wed Jan 25 23:51:04 2023 |
Koji | General | General | The items packed for Downs | Qty1 1/2 mounts
Qty2 prism mounts
Qty6 gluing fixures |
|
|
472
|
Mon Jan 23 19:51:20 2023 |
Koji | Optics | General | OMC #4: cavity mirror bonding | [Camille, Koji]
We continued to bond two CM mirrors
and the other two steering mirrors for QPD2. |
|
|
471
|
Thu Jan 19 23:45:44 2023 |
Koji | Optics | General | OMC #4: cavity mirror bonding | [Koji, Camille]
We worked on the bonding of the
flat mirrors for the OMC cavity with UV epoxy. |
|
|
470
|
Mon Dec 19 18:51:50 2022 |
Koji | Optics | Characterization | TMS measurement with the PZT voltages altered | [Camille, Koji] Log of
the work on Dec 15, 2023
The vertical and horizontal |
|
|
469
|
Mon Dec 12 19:04:40 2022 |
Koji | Optics | Characterization | FSR/TMS/Spot Positions/Transmission 2nd trial | [Camille Koji]
We replaced CM2 with a PZT mirror
subassembly serialized by PZT "13" |
|
|
468
|
Fri Dec 9 13:13:13 2022 |
Koji | Optics | Characterization | FSR/TMS/Spot Positions/Transmission | [Camille Koji]
We quickly measured the basic parameters
of the OMC as is. |
|
|
467
|
Mon Dec 5 20:09:39 2022 |
Koji | Optics | General | (re)starting the OMC #4 build | [Camille Koji]
We started buikding the
OMC #4. |
|
|
466
|
Fri Dec 2 23:58:33 2022 |
Koji | Optics | Characterization | OMC #1 cleaning for water soluble contaminants | The second trial of the water scrub
A bright scatter is visible on
FM1, so I tried water scrub on FM1. This |
|
|
465
|
Fri Dec 2 12:38:15 2022 |
Koji | Optics | Characterization | OMC #1 cleaning for water soluble contaminants | Another set of FC cleaning was applied
to FM1/FM2/CM1/CM2 and SM2. Some FC strings
are visible on SM2. So I decided to clean |
|
|
464
|
Fri Dec 2 11:42:03 2022 |
Koji | Optics | Characterization | OMC #1 cleaning for water soluble contaminants | [Camille, Koji] Log of the work
on Nov 30, 2022
The
following is the notes from GariLynn
|
|
|
463
|
Tue Nov 29 15:54:47 2022 |
Koji | General | Configuration | Windows laptop for WincamD Beam'R2 recovery | Aaron took the set to Cryo lab
|
|