| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
194
|
Tue Feb 27 17:51:56 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Amplified laser injection | In the last two days, Ronic and I connected
the amplifier and locked the cavity.
- We installed an iris on the output |
|
|
196
|
Thu Mar 7 18:55:42 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | - These days, Ronic, Fatematuj and I measured
the beam parameters of the output of the
third-stage amplifier. |
|
|
197
|
Fri Mar 8 18:04:43 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | Today, Ronic and I installed the new telescope
and locked the cavity.
- We locked at the amplifier |
|
|
198
|
Tue Mar 12 22:13:47 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Coupling efficiency improvement | - Today, Ronic and I locked at the amplifier
current of 2 A and obtained ~60% coupling
after optimizing the CEP (see Figure |
|
|
199
|
Wed Mar 13 19:44:41 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Injection at the amplifier current of 2 A | Today, Ronic and I optimized the locking at
the amplifier current of 2 A and
obtained ~ 21 kW inside |
|
|
200
|
Wed Mar 20 18:22:53 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Polarization issue | These days, Ronic, Aurélien, Fatematuj
and I have been doing some tests on polarization
issue, trying to see if it is possible to |
|
|
201
|
Thu Mar 21 09:26:50 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Polarization issue | just to add some details
:
about the S and P polarization |
|
|
202
|
Thu Mar 21 17:32:59 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | Polarization issue & 50kW with 22W injection | Today, Ronic and I lock the cavity on the
other polarization and achieved 50kW with
22W injection. |
|
|
203
|
Tue Mar 26 19:36:48 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | High power experiments (200kW) | These days, Ronic and I achieved 200kW
inside the cavity and 70% coupling efficiency.
- By optimizing the telescope, |
|
|
204
|
Wed Mar 27 09:47:37 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | High power experiments (200kW) | all the injection power in the chart have
not been measured recently but during the
Loic thesis period. |
|
|
205
|
Wed Mar 27 22:37:02 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | High power experiments (272kW) | Today, Ronic and I achieved 272kW inside
the cavity at 7.5A. The coupling maintained
60%-70%. |
|
|
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. |
|
|
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 |
|
|
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. |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|
|
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 |
|