| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
267
|
Wed Sep 20 19:12:16 2023 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Fast feedback loop between laser and FP cavity | I copy the post about Fast Feedback loop
: https://elog.lal.in2p3.fr/FPC/THOMX+commissioning/265
This morning, |
|
|
274
|
Wed Nov 8 18:52:44 2023 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | some changes in the feedback scheme | from several weeks, the maximum power stored
in the FP-cavity was ~ 5kW.
today with Daniele, we finished |
|
|
314
|
Tue Jan 16 12:26:12 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | 33MHz (FP-cavity vs RF) phase stability | this morning, with Vincent Chaumat, we
made a beating (phase detection) between
the laser 33MHz and the 33MHz coming from |
|
|
320
|
Fri Jan 26 13:04:56 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | 33MHz (FP-cavity vs RF) phase stability | today, I locked the laser on the
FP-cavity and the FP-cavity on the RF reference
with 47kW inside the FP-cavity. |
|
|
332
|
Tue Mar 19 13:01:22 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | This morning with Daniele, we operated
the FP-cavity to be sure there is no issue
due to the Linac section changing operation |
|
|
333
|
Tue Mar 26 10:20:54 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | This morning, I locked again the FP-cavity
at more than 50kW with 33% of laser amplifier
ratio. |
|
|
335
|
Tue Apr 2 09:19:31 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | from now on, the transmission factor for
calculating the FP intra cavity power is
1/1.75ppm ~ 570 000 (changed in the Powermeter |
|
|
336
|
Tue Apr 9 09:38:18 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | this morning, I had to restart the chiller.
Temp Amp 1 is at 27.5°C after having
started the amplifier at 33% ratio. |
|
|
337
|
Thu Apr 11 09:58:10 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | this morning, the computer was restarted
and I had to launch all the applications.
no problem except the powermeter for |
|
|
338
|
Thu Apr 25 09:09:49 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation |
this morning, the chiller was in
error and I had to restart it. |
|
|
339
|
Tue May 14 09:20:27 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | Yesterday, the ThomX water circuit should
have been repared,
and yesterday aftenoon, Daniele restarted |
|
|
340
|
Tue May 14 10:37:41 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | the air temperature is between 21°C
and 22°C.
I tried to lock the cavity but |
|
|
341
|
Tue May 28 15:05:46 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | today, I tried to restart the amplifier
at 0% (without 3rd stage) but it didn't
start... still the same error message. |
|
|
342
|
Fri May 31 18:12:59 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | FP-cavity lock survey during the Linac section changing operation | today with Daniele, we disconnected the
EOM to increase the injected power of the
amplifier, we were at 4.8mW but we still |
|
|
355
|
Thu Sep 5 09:51:22 2024 |
Ronic Chiche | Fixed | issue | lasers and optics | detectors and electronics | ThomX igloo | fixing CVBG issue | the CVBG of the compressor module seems
to have an issue.
here is the plan of the work : |
|
|
356
|
Thu Sep 5 09:53:10 2024 |
Ronic Chiche | Fixed | issue | lasers and optics | detectors and electronics | ThomX igloo | fixing CVBG issue | 1) this morning, I aligned to CFP to get
back 82kW in the cavity for 33% of amplifier
ratio. |
12x |
|
357
|
Fri Sep 6 11:56:53 2024 |
Ronic Chiche | Fixed | issue | lasers and optics | detectors and electronics | ThomX igloo | fixing CVBG issue | this morning with Daniele, we realigned
the amplifier beam axis on the iris position.
it was pretty fast an easy => we |
|
|
378
|
Wed Nov 20 11:28:01 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Checking the amplifier power | this morning, with Daniele, we checked
the amplifier power, right after the CVBG
(the power meter has to be placed on a metal |
|
|
379
|
Wed Nov 20 12:00:47 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Checking the amplifier power | we did a long term run (25 mn) with the
powermeter located at the FPC position at
33% amplifier ratio. |
|
|
380
|
Wed Nov 20 12:42:11 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Checking the amplifier power | I put back and aligned the 1/2 waveplate
only and I get 71kW max after its optimization
and optimizing the CEP and alignment (without |
|