| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
51
|
Fri Jan 24 17:58:45 2020 |
Loïc Amoudry | Fixed | info | lasers and optics | Optical room | CFBG removed from ThomX CELIA amplifier | The CFBG has been removed successfully
and the amplifier is closed now.
The soldering machine had a calibration |
|
|
63
|
Thu Jun 10 17:55:15 2021 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | Origami SN2440 133MHz laser tests | Today, we received the Origami SN2440 133MHz
oscillator from repair (NKT mentioned a defective
wire inside the controller....) |
|
|
123
|
Mon Aug 8 17:58:32 2022 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | Pulse duration measurement before and after CVBG (as a strecher) | I recorded the pulse shape of the MENHIR
216MHz in its fiber injection setup.
the fiber is then connected to the |
|
|
126
|
Thu Aug 11 19:27:09 2022 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | Optical room | Koheras CW laser lock on FP cavity | I locked the Koheras CW on the FP cavity
but the lock was pretty noisy and very difficult
to acquire. |
|
|
127
|
Fri Aug 12 11:46:17 2022 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | OEwaves lock and Finesse measurement | this morning, I locked the FP cavity with
the OEwaves CW laser and the "Fred fiber
amplifier" used at 500mA of pump current. |
|
|
139
|
Tue Aug 30 17:48:39 2022 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | 2nd stage CELIA amplifier | today, we measured the 2nd stage CELIA
amplifier pump wavelength : 970-990 nm |
|
|
140
|
Wed Aug 31 18:14:51 2022 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | 2nd stage CELIA amplifier | today we did several test with the Dichroic
shortpass mirror (Thorlabs DMSP1000) and
with a 10nm optical filter around 1030nm |
|
|
156
|
Fri Sep 9 18:35:07 2022 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | Optical room | D-shape mirrors positionning status | This afternoon we opened the cavity and
put the D-shape mirrors at their correct
place, close to the beam. |
|
|
157
|
Fri Sep 9 19:03:58 2022 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | Optical room | D-shape mirrors positionning status | The cavity box is vacuum pumped at 6*10^-2
mbar.
|
|
|
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 |
|
|
174
|
Thu Dec 7 09:09:27 2023 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | New mirrors batch informations | the 2 files describe the specfications
for the 16 mirrors ordered (4 for ThomX +
spare, 4 for SBOX + spare) and the measurements |
|
|
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. |
|
|
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 |
|
|
182
|
Wed Jan 17 21:11:59 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Install new mirrors | Today, Ronic and I installed the new mirrors
and got resonance. We can see the oscillations
in this high-finesse case. We haven't |
|
|
183
|
Thu Jan 18 22:14:03 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Install new mirrors | - In the last two days, Ronic and I installed
new mirrors after cleaning the environment,
and locked the cavity. |
|
|
184
|
Mon Jan 22 18:18:01 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Install new mirrors | - Today, Ronic and I changed the signal
generator to a low-noise one (with a delay
time of only 0.5 us). Then we moved |
|
|
185
|
Wed Jan 24 20:33:27 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Install new mirrors | Yesterday we checked the mirrors with
UV light and there was some dust on the mirrors,
especially M2. |
|
|
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 |
|