| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
165
|
Thu Oct 20 15:01:02 2022 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Strecher and fiber injection alignment | I used the 33MHz spectrum measurement :
https://elog.lal.in2p3.fr/FPC/THOMX+commissioning/153
fitted by P=P0*sech²((f-f0)/df) |
|
|
166
|
Mon Oct 24 17:35:01 2022 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Strecher and fiber injection alignment | Manar + Victor, today in the morning we
aligned the CVBG of the stretcher.
The double path using the mirror |
|
|
167
|
Wed Nov 2 11:42:43 2022 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Strecher and fiber injection alignment | This morning with Manar, we continued the
strecher CVBG alignment and fiber injection
procedure : |
|
|
168
|
Thu Nov 3 09:09:18 2022 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Strecher and fiber injection alignment | this morning : still 6.2 mW at the output
of the fiber.
the powermeter has been removed |
|
|
169
|
Wed Nov 9 11:34:54 2022 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Strecher and fiber injection alignment | Monday 7/11 morning, the power in the fiber
was still 6.2 mW
|
|
|
272
|
Tue Nov 7 14:09:25 2023 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Strecher and fiber injection alignment | Today, the power measured at the input
of the amplifier (PD_IN on the LAL amplifier
software) is 2.5mW instead of >3mW generally |
|
|
305
|
Fri Dec 8 12:21:25 2023 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Strecher and fiber injection alignment | today, the Alphanov amplifier stopped because
of the too low injected power : ~2.5mW (measured
by the Alphanov software) |
|
|
444
|
Tue Jul 15 17:34:13 2025 |
Ronic Chiche | Under Process | info | lasers and optics | ThomX igloo | Stability test Without and with | The laser starts at 93 KW.
This morning I operated the laser
locked with the RF for 1h30 without any delock. |
|
|
49
|
Mon Jul 29 17:15:35 2019 |
Loïc Amoudry | Fixed | info | mechanics | lasers and optics | Optical room | Spin coater air supply removed and front panel changed | Spin coater firstly needed vacuum and air
supply. The air supply being useless for
our experiments, it has been disabled. |
|
|
77
|
Wed Nov 6 16:11:12 2019 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Spherical mirrors at closest position. FSR, finesse and beam size. | The spherical mirrors are at the closest
position to get a FSR ~=33.3435 MHz. Planar
mirrors are at the largest position. |
|
|
293
|
Tue Nov 28 11:32:17 2023 |
Ronic Chiche | Fixed | info | mechanics | detectors and electronics | ThomX igloo | Smaract motors parameters and controller | current Smaract motors parameters :
- Closed loop Max frequency : 5000
- Signal Amplitude threshold : 2047 |
|
|
238
|
Wed Sep 6 20:09:56 2023 |
Ronic Chiche | Fixed | info | lasers and optics | ThomX igloo | Smaract controller remplacement | previously, we were using a spare Smaract
MCS controller to drive the Onefive linear
stages (without -LV -low vibration- |
|
|
275
|
Thu Nov 9 16:40:16 2023 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | Ring frequency / Laser "day by day" locking | today, the equivalent Smaract position
corresponding to the 500.25MHz ring frequency
is +156µm on MCS-1/ch0 (closed loop |
|
|
277
|
Fri Nov 10 09:43:26 2023 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | Ring frequency / Laser "day by day" locking | temperature stable around 20.8°C
today, the equivalent Smaract position
corresponding to the 500.25MHz ring frequency |
|
|
281
|
Tue Nov 14 10:51:57 2023 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | Ring frequency / Laser "day by day" locking | temperature stable around 21.7°C
today, the equivalent Smaract position
corresponding to the 500.25MHz ring frequency |
|
|
309
|
Wed Jan 10 14:52:22 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | Restarting equipements after Christmas shutdown | this morning, I plugged back the 4 power
cables which supply all the equipments.
all the equipments have restarted |
|
|
311
|
Wed Jan 10 18:43:03 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | Restarting equipements after Christmas shutdown | the laser coupled into the amplifier is
still measured at ~3mW at the input, on the
Alphanov software, once the Amp stage are |
|
|
312
|
Thu Jan 11 13:42:16 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | Restarting equipements after Christmas shutdown | this morning, I set the Ring frequency
at 500.25MHz and after switching ON the power
supply of the amplifiers for the RF signal |
|
|
313
|
Tue Jan 16 12:19:35 2024 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | software | ThomX igloo | Restarting equipements after Christmas shutdown | on last friday (12/01/2024), the IcePap
DS issue was solved and I was able to control
the FP-cavity motors properly. |
|
|
241
|
Fri Sep 8 12:43:04 2023 |
Ronic Chiche | Fixed | info | mechanics | lasers and optics | detectors and electronics | ThomX igloo | Removing high order modes | this morning we locked the laser and the
FP-cavity with ~ 40kW => some HOM appeared
"randomly" depending on the power. |
|