| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
152
|
Fri Sep 9 12:45:19 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Locking Amplifier with Cavity | image of the lock with Coupling of ~ 60%
|
|
|
153
|
Fri Sep 9 12:49:44 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Locking Amplifier with Cavity | Alignment was improved to ~ 1.2 V on the
photodiode.
Only the second stage was on with |
|
|
154
|
Fri Sep 9 14:44:35 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Power storage In Cavity | We start of power output from amplifier
of 1W with only the first and second stage
on then we start with the third stage power |
|
|
155
|
Fri Sep 9 15:47:46 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Power storage In Cavity | At transmission power of 42 mW, coupling
60%, we see fundamental mode with a degeneracy
The D-shape motors were moved to |
|
|
158
|
Mon Sep 12 16:27:14 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Power storage In Cavity | Power increased in the amplifier
reflective filters added at the
transmission point to be able to have signal |
|
|
159
|
Mon Sep 12 17:00:35 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Power storage In Cavity | at max stage we reached at 2.5
A on the diodes we have
8000 gain , coupling ~ |
|
|
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 |
|
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. |
|