| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
232
|
Tue Mar 4 18:51:57 2025 |
Ronic Chiche | Under Process | info | mechanics | lasers and optics | Optical room | Alignment of a 2-mirror FP cavity | today with Alice,
- we measured the height of the
SBOX windows center : 140mm from the optical |
|
|
231
|
Tue Mar 4 18:33:26 2025 |
Ronic Chiche | Fixed | info | utilities | Optical room | optical table cleaning | now, it seems the table is clean enough
(dust meter counts 0 particles) to install
a 2 mirrors FP-cavity. |
|
|
230
|
Mon Dec 16 10:20:56 2024 |
Ronic Chiche | Under Process | issue | lasers and optics | Optical room | CELIA 100W laser amplifier repair | friday morning, we add a zoom call with
Jerome Lhermite about the amplifier repair.
he approximately confirmed the amplifier |
|
|
229
|
Fri Dec 6 16:59:57 2024 |
Ronic Chiche | Fixed | info | utilities | Optical room | optical table cleaning | this afternoon, we checked the dust meter
which is at 0 for 1 and 5µm dust particles
but ~ 2000-3000 for 0.3µm particles. |
|
|
228
|
Tue Dec 3 13:51:52 2024 |
Ronic Chiche | Fixed | info | utilities | Optical room | optical table cleaning | this morning with Alice and Daniele, we
removed all the optics elements and equipments
from the SBOX optical table and started to |
|
|
227
|
Fri Nov 29 16:50:04 2024 |
Alice Renaux | Under Process | info | lasers and optics | Optical room | Menhir 216MHz laser | The Menhir 216MHz laser has been put back
in place on the cavity table. Its output
power is measured to be 160mW with an attenuator. |
|
|
226
|
Fri Nov 29 12:06:05 2024 |
Alice Renaux | Fixed | info | lasers and optics | Optical room | Menhir 160MHz laser | The Menhir 160MHz has been put back in
place on the CELIA amplifier setup. Its output
power is measured to be 150-160mW with an |
|
|
225
|
Wed Oct 2 18:12:54 2024 |
Ronic Chiche | Under Process | issue | lasers and optics | Optical room | CELIA 100W laser amplifier repair | this afternoon, we saw some electric cables
badly connected to their power supply.
we fixed it by soldering them together |
|
|
224
|
Wed Oct 2 10:12:55 2024 |
Ronic Chiche | Under Process | issue | lasers and optics | Optical room | CELIA 100W laser amplifier repair | this morning with Alice, we sent the Menhir
160MHz injected in a fiber (with 6mW at the
end of a long fiber) into the laser amplifier, |
|
|
223
|
Wed Jun 19 10:38:00 2024 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | Optical room | D-shape mirrors positionning status | summary:
- the motors used to move the D-shape
are the Newport Picomotors 8303-V |
|
|
222
|
Fri May 17 15:02:01 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | high-power experiments of 2-mirror cavity | Here's a summary of our experiment
last week:
The initial telescope position: |
6x |
|
221
|
Thu May 16 18:51:17 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | high-power experiments of 2-mirror cavity | here is a Matlab code to try to optimize
the telescope for a hot cavity,
taking into account the thermal lens |
|
|
220
|
Mon May 6 18:38:18 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | high-power experiments of 2-mirror cavity | Today, Ronic, Daniele and I redo the high-power
2-mirror cavity experiments, and the results
are shown in the table (Figure 1 and |
|
|
219
|
Thu Apr 25 22:12:25 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | 2 mirror cavity high power experiments | Today, Ronic and I recorded some intracavity
power and cavity mode size as shown in Fig.
1. |
|
|
218
|
Tue Apr 16 18:38:04 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Fiber injection, spectrum and connection of 2nd stage amplifier | Today, Daniele and I injected the laser
into the fiber, installed the telescope,
connected the second stage of the amplifier, |
|
|
217
|
Mon Apr 15 18:19:40 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Finesse measurement of 2-mirror cavity | - Today Daniele and I cleaned the spherical
mirror by wiping it with alcohol,
and the finesse increased to 47k |
|
|
216
|
Fri Apr 12 17:18:15 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Install 2-mirror cavity | Today Viktor and I completed the installation
of the two-mirror cavity and managed
to lock and measure the finesse. |
|
|
215
|
Thu Apr 11 19:09:21 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Install 2-mirror cavity | Today, Viktor and I started installing
the two-mirror cavity.
- Firstly, we cleaned the environment |
|
|
214
|
Wed Apr 10 11:35:54 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Finesse measurement (35k) | These days, Ronic, Aurélien
and I use OEwaves CW laser to measure the
finesse of SBOX. We made 5 measurements |
|
|
213
|
Tue Apr 9 08:57:22 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Different cavity modes & Pulse width | Additional information:
The pulse duration has been performed
in RF on a UPD-70-IR2-P photodiode from Alphalas |
|