| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
364
|
Tue Sep 17 12:48:13 2024 |
Ronic Chiche | Fixed | info | mechanics | ThomX igloo | Finding correct motors position and parameters to keep the lock during a move | this morning with Daniele, we did a quite
long run with this motor position and it
seems we don't lose the lock too much. |
|
|
70
|
Wed Oct 9 10:16:24 2019 |
Loïc Amoudry | Fixed | info | lasers and optics | Optical room | Fiber injection and onefive output power | Fiber injection is finished with the new
ThomX stretching CVBG in double pass (+50%
injection power compared to K-BOX CVBG in |
|
|
237
|
Wed Sep 6 19:57:48 2023 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Fast feedback loop between laser and FP cavity | today, we tried to lock the FP cavity with
the Smaract motors ON (with option -LV).
we know the Smaract controllers produce |
|
|
240
|
Thu Sep 7 19:23:36 2023 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Fast feedback loop between laser and FP cavity | today, after the several unsuccessful attempt
yesterday to get an improvement in the lock,
we decided to "rebuild" |
|
|
260
|
Fri Sep 15 18:27:24 2023 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | ThomX igloo | Fast feedback loop between laser and FP cavity | this afternoon, we tried to better understand
how to drive properly the EOM to kill high
frequency noise. |
|
|
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, |
|
|
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 |
|
|
300
|
Thu Nov 30 12:33:08 2023 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | FP-cavity inside power sensitivity | this morning I monitored the frequency
shift between the FP-cavity frequency (the
laser is locked on it) and the RF reference |
|
|
236
|
Tue Sep 5 18:21:12 2023 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | FP-cavity FSR shift | today, to match the ring frequency at 500.25MHz
(15th laser harmonic), we did a frequency
shift on the laser using the Smaract motors |
|
|
128
|
Fri Mar 11 12:46:58 2022 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | FP cavity mode axis change and Finesse measurement | this morning with Manar, we did a cavity
mode axis change.
we checked the cavity mode centroid |
|
|
109
|
Thu Dec 2 21:31:21 2021 |
Manar Amer | Fixed | report | lasers and optics | ThomX igloo | FP cavity alignment | Note the direction of injection is
M1 - M2 - M3 - M4
|
|