| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
161
|
Mon Sep 12 18:50:57 2022 |
Manar Amer | Fixed | issue | lasers and optics | Optical room | Damage on mirror surface | Tomorrow will try to shift the injection
mirror to avoid hitting the damaged spot.
|
|
|
162
|
Tue Sep 13 19:26:27 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Damage on mirror surface | After discussing, we have decided against
shifting the mirror to avoid the time lost.
We changed the injection mirror |
|
|
163
|
Tue Sep 13 19:31:14 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | liPower storage In Cavity | After changing the mirror M1 and cleaning
the 2 mirrors
They were placed in the cavity |
|
|
164
|
Wed Sep 14 16:16:08 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Power storage In Cavity | The cavity was locked under vacuum, coupling
is approximately < 10%
The lock was relatively easy and |
|
|
165
|
Wed Sep 14 17:21:59 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Power storage In Cavity | We improved the lock using the alignment,
polarization and CEP , the maximum we got
was ~ 12% coupling |
|
|
166
|
Fri Sep 16 15:56:45 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Damage on mirror surface | a better image of the damaged spot, image
taken with the arrow for the reflective surface
facing the other direction (image shows position) |
|
|
167
|
Fri Sep 16 17:47:56 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Damage on mirror surface | ThomX injection mirror has been cleaned
and placed again inside the optical cavity.
This time to avoid the damaged |
|
|
168
|
Tue Sep 20 12:50:40 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | M1 ThomX used while shifted from damaged spot | Yesterday , we locked the cavity and we
see a sign of a high finesse on the transmission
signal, but no measurement of Finesse was |
|
|
169
|
Wed Sep 21 12:10:07 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | M1 ThomX used while shifted from damaged spot | To compare between the 2 images of the
cavity mode:
the mode by itself has |
|
|
170
|
Mon Sep 26 16:15:06 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | M1 ThomX used while shifted from damaged spot | On Wednesday 21st , I opened the cavity
did an additional 2 mm shift of the injection
mirror and put it under vacuum again. |
|
|
171
|
Tue Sep 27 19:30:49 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | M1 Gamma Factory | In the morning, Vacuum broken and rotated
M1 ThomX 90 degrees clockwise, locked the
cavity in air and we observe a degeneracy |
|
|
172
|
Wed Sep 28 18:43:51 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | M2 ThomX spherical Cleaning | Today, M2 Spherical-3 from ThomX that was
installed inside the SBox was removed, there
was one big dust on the surface of the mirror, |
6x |
|
173
|
Fri Jan 6 12:33:18 2023 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | Laser Menhir reinstallation + CVBG + fiber injection | The lab purchased the Menhir laser @ 216MHz.
it has been sent back to Menhir
photonics for inspection, and then is now |
|
|
175
|
Thu Dec 7 09:30:03 2023 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | software | Optical room | new setup for the 160MHz Menhir oscillator | from the begining of the week, Xinyi, Aurélien,
Viktor and myself started to install a new
setup for the Menhir 160MHz oscillator. |
|
|
176
|
Fri Dec 8 18:59:24 2023 |
Xinyi Lu | Fixed | report | lasers and optics | Optical room | Mounts installation and cavity alignment | Over the last two days, Viktor, Ronic and
I have started to install the mirror mounts
and try to align the cavity. |
|
|
177
|
Thu Dec 14 17:52:53 2023 |
Xinyi Lu | Fixed | report | lasers and optics | Optical room | Mounts installation and cavity alignment | Over the past few days, Viktor, Ronic and
I have continued to align the cavity.
We installed 4 mirrors and monitored the |
|
|
178
|
Wed Dec 20 10:45:37 2023 |
Xinyi Lu | Fixed | report | lasers and optics | Optical room | Mounts installation and cavity alignment | - Over the last few days, Viktor, Ronic
and I have reinstalled the mounts and realigned
the cavity with CW laser and old mirrors. |
|
|
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 |
|
|
181
|
Tue Jan 16 18:42:42 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | FSR and Finesse measurement | - Today, Ronic and I measured the finesse
and FSR after optimizing the locking. FSR
was adjusted to 160.27 MHz to match the pulsed |
|