| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
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 |
|
|
212
|
Mon Apr 8 08:34:54 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Different cavity modes & Pulse width | - Last week, we obtained three curves of
the variation of different cavity modes with
power (Fig. 1). By comparing the gain for |
|
|
211
|
Thu Apr 4 21:48:16 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Larger beam size & Spectrum | - We re-measured the gain before moving
the mirror. Gain ~9000 was achieved at 3A,
but as the power increased, the gain dropped |
|
|
210
|
Wed Apr 3 21:37:07 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | High power experiments (550kW) | - Today we moved the position of the D-shaped
mirror at 6A. When motor1 (vertical) is 0.2mm
away from the spot, the power in the cavity |
|
|
209
|
Wed Apr 3 08:53:33 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | High power experiments (520kW) | Yesterday, Ronic, Xing, Qili and I achieved
a more stable 520kW power at 7.5A (71W injection)
by optimizing the alignment and locking parameters. |
|
|
208
|
Tue Apr 2 08:39:17 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | High power experiments (500kW) | Last week, we achieved a stable intracavity
average power of 500kW, limited by amplifier
power. The experimental data are shown |
|
|
207
|
Fri Mar 29 16:23:34 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | Optical room | 100W CELIA laser amplifier "Power vs Pump current" curve | We measured again the 100W CELIA laser
amplifier with a pump current until 8A.
as the first current pump of the |
|
|
206
|
Thu Mar 28 19:03:55 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Amplifier power and mirror transmission | Today, Ronic, Daniele, Aurélien
and I measured the amplifier power and mirror
transmission. |
|