| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
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 |
|
|
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 |
|
|
242
|
Thu Sep 4 17:52:03 2025 |
Alice Renaux | Under Process | report | lasers and optics | Optical room | Finesse measurement | Today, with Ronic, we measured the finesse
of the 2-mirror cavity witht the NKT CW laser.
We were able to perfrom the measurement |
|
|
243
|
Thu Sep 4 17:56:50 2025 |
Alice Renaux | Under Process | report | lasers and optics | Optical room | Finesse measurement | (Finesse 2651 is consistent with that obtained
from the mirrors' transmission coefficients,
which is about 3100.) |
|
|
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, |
|
|
111
|
Tue Jul 12 10:07:05 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | Optical room | FSR change & Finesse Measurements | The FSR of the 2 mirror (plan-spherical)
Cavity was adjusted from 210 MHz to reach
216.643 MHz |
|
|
112
|
Tue Jul 12 10:19:30 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | Optical room | FSR change & Finesse Measurements | Yesterday evening the cavity was Vacuum
pumped up to pressure of 5.5*10^-2 and locked
changed FSR to be 216.662 MHz and |
|
|
113
|
Tue Jul 12 14:41:55 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | Optical room | FSR change & Finesse Measurements | a Finesse of 30k with the present mirrors
:
T1=120 ppm ;A1=(2.6+1) ppm; |
|
|
32
|
Tue Dec 10 09:36:56 2019 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | FSR and Finesse measurement | Yesterday the cavity has been aligned and
locked with the CW Koheras laser.
the FSR has been measured by modulation |
|
|
181
|
Tue Jan 16 18:42:42 2024 |
Xinyi Lu | Fixed | info | lasers and optics | Optical room | FSR and Finesse measurement | - Today, Ronic and I measured the finesse
and FSR after optimizing the locking. FSR
was adjusted to 160.27 MHz to match the pulsed |
|
|
67
|
Wed Mar 23 18:11:22 2022 |
Manar Amer | Fixed | report | utilities | Optical room | Dust Cleaning of SBox | An Initial cleaning of the KBoX outside
was done, All the optics and mechanics placed
that were on the table were removed. |
|
|
68
|
Wed Mar 23 18:17:45 2022 |
Manar Amer | Fixed | report | utilities | Optical room | Dust Cleaning of SBox | The cleaning was done twice with half an
hour interval between the two times
reading on the dust meter was taken |
|
|
71
|
Wed Mar 30 18:53:01 2022 |
Manar Amer | Fixed | report | mechanics | lasers and optics | utilities | Optical room | Dust Cleaning of SBox | The inside of the cavity was cleaned today.
It was very dirty and had big dust particles
and fibers inside. |
6x |
|
72
|
Thu Mar 31 13:29:01 2022 |
Manar Amer | Fixed | report | mechanics | lasers and optics | utilities | Optical room | Dust Cleaning of SBox | After an overnight where the cavity box
was left open, a measurement of the Dust
meter was taken: |
|
|
103
|
Wed Jul 6 18:37:02 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Divergence of the CW beam after collimator | Closing the series of the telescope for
the beam @ 133.33 MHz
|
|
|
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 |
|
|
25
|
Thu Jan 24 17:44:21 2019 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Deposit on S-box mirrors after return from LMA | Cleaning on dirty surface shows something
is deposited on the surface. Cleaning displaces
and removes part of the deposit. |
|
|
237
|
Fri Jun 13 20:10:00 2025 |
Alice Renaux | Fixed | report | lasers and optics | Optical room | Damaged mirrors test | Today with Dorian we tested three mirrors
with which we previously haven't been
able to obtain any resonance or optical beating |
|
|
160
|
Mon Sep 12 18:49:42 2022 |
Manar Amer | Fixed | issue | lasers and optics | Optical room | Damage on mirror surface | Following the storage of ~ 50 kW inside
the cavity and a sudden drop in transmitted
power from the cavity |
|