| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
179
|
Wed Jan 10 18:35:46 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | - Recently we have focused on improving
the coupling efficiency. Without the telescope,
the original coupling efficiency was less |
|
|
180
|
Mon Jan 15 19:19:00 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | - We got 30% coupling efficiency by installing
a set of telescopes, adjusting the polarization
and optimizing the alignment. The diameter |
|
|
196
|
Thu Mar 7 18:55:42 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | - These days, Ronic, Fatematuj and I measured
the beam parameters of the output of the
third-stage amplifier. |
|
|
197
|
Fri Mar 8 18:04:43 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | Today, Ronic and I installed the new telescope
and locked the cavity.
- We locked at the amplifier |
|
|
198
|
Tue Mar 12 22:13:47 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | - Today, Ronic and I locked at the amplifier
current of 2 A and obtained ~60% coupling
after optimizing the CEP (see Figure |
|
|
186
|
Fri Jan 26 17:33:05 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Cleaning of Mirrors | Today Daniele, Ronic and I cleaned the
mirrors and locked the cavity. However, the
finesse was only 13,000 because of the not |
|
|
187
|
Mon Feb 12 17:17:04 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Cleaning of Mirrors | - Today we cleaned the environment and
put the spin coater and microscope inside
the airflow. |
|
|
188
|
Tue Feb 13 17:33:28 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Cleaning of Mirrors | Today, Daniele and I cleaned mirrors one
by one using pure water, alcohol, and the
spin coater. Here are the measurements of |
|
|
189
|
Wed Feb 14 17:20:26 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Cleaning of Mirrors | - Today, Daniele and I cleaned the
cavity inside, recleaned the M2 and
M4 and their mounts, optimized the locking, |
|
|
73
|
Mon Apr 4 13:58:23 2022 |
Manar Amer | Fixed | issue | detectors and electronics | utilities | Optical room | Clean Airflow Dust measurements | The dust meter cap was cleaned using Alcohol,
and using the filter white cap the dust count
was (0 Av. 10 min) |
|
|
74
|
Fri Apr 8 19:27:12 2022 |
Manar Amer | Fixed | issue | detectors and electronics | utilities | Optical room | Clean Airflow Dust measurements | Dust measurement done today on top
of the SBox average 10min
|
|
|
18
|
Wed Oct 31 13:51:17 2018 |
Loïc Amoudry | Fixed | info | lasers and optics | Optical room | Change of the 3 ULE mirrors by 3 spare ULE mirrors | First finesse measurement 20 266, FSR 133.351
MHz under vacuum |
|
|
1
|
Wed Sep 26 18:12:44 2018 |
Loïc Amoudry | Fixed | info | lasers and optics | Optical room | Cavity polarization states (Koheras), Finesse of 2 polarization states | Measurments of Finesse with the 2 polarization
states, let's call them H (higher) and
L (lower): 24500 for the H and 23500 for |
|
|
45
|
Thu Dec 19 16:23:39 2019 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | Cavity beam axis moving with power | how the cavity beam axis is moving during
a lock when the cavity is hot ?
could it explain a part of the Transmission |
9x |
|
95
|
Wed Jun 8 11:10:17 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Start with the cavity lock images attached,
taken from last week, at
start we have a coupling ~ 5% and started |
|
|
97
|
Wed Jun 8 11:31:47 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Current setup at SBox for locking the cavity
After spacial matching, the coupling
increased to ~ 15 - 20 % |
|
|
98
|
Thu Jun 9 19:59:42 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Cavity locked today under vacuum and no
airflow, it is stable over a long time
the alignment was improved and |
|
|
101
|
Wed Jul 6 18:34:12 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Closing the series for the setup
The cavity was only locked @ 133.33
MHz but the Finesse was not measured |
|
|
119
|
Fri Jul 22 18:19:13 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | CVBG stretching / Fiber Injection | Before injecting into the amplifier, the
pulse needs to be stretched using a CVBG,
type attached. |
7x |
|
131
|
Fri Aug 19 16:03:40 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | CVBG stretching / Fiber Injection | closing series
|
|