ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
31
|
Fri Dec 6 11:54:58 2019 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Mirror's installed | The initial 400kW SBOX mirrors which have
been cleaned ont 28th of november have been
installed this morning on the SBOX. |
|
|
30
|
Fri Dec 6 11:53:53 2019 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Mirror's cleaning | XPS has been proceeded on the 400kW SBOX
mirrors M3 and M4 (the initial cavity spherical
mirrors) in frebruary 2019. Deposited a lot |
|
|
29
|
Wed Nov 13 13:15:53 2019 |
Loïc Amoudry | Fixed | report | lasers and optics | Other | AFM+ InfraRed spectroscopy (IR spectro) has been performed | AFM+ InfraRed spectroscopy (IR spectro)
has been performed on 400kW S-BOX mirrors.
Seems that XPS made M3 and M4 dirty, |
|
|
28
|
Fri Feb 1 14:04:27 2019 |
Loïc Amoudry | Fixed | info | lasers and optics | Other | Meeting with LMA people, AFM | 30/01/19 - The following powerpoint
shows the results discussed with LMA people.
What came out from the discussion |
|
|
27
|
Fri Feb 1 13:45:19 2019 |
Loïc Amoudry | Fixed | report | lasers and optics | Other | AFM performed on S-BOX mirrors | 29/02/19 - AFM has shown that spots
on mirror's surfaces are bumps and not
holes. |
|
|
26
|
Thu Jan 24 17:49:54 2019 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Impacts on mirror's surface | All the mirrors show impacts on there surface
(some of them do not show deposit). Does
it come from experiments or fabrication ? |
|
|
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. |
|
|
24
|
Fri Dec 21 13:42:43 2018 |
Loïc Amoudry | Fixed | info | lasers and optics | Optical room | Mirrors features, come back from LMA | Mirrors arrived today from LMA. Their features
are damaged.
Photos avant ou après nettoyage, |
|
|
23
|
Thu Nov 15 13:02:44 2018 |
Loïc Amoudry | Fixed | info | lasers and optics | Optical room | Mirrors cleaning | The new mirrors didn't give expected
results. Then the 4 old mirrors have been
sent to LMA on 12/11/18 for a cleaning and |
|
|
22
|
Mon Nov 5 13:11:08 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | First run with spare mirrors |
I (A)
|
|
|
21
|
Wed Oct 31 14:06:17 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | M1 transmission measurement | At different positions, transmission give
194, 193, 208, 200 ppm?
|
|
|
20
|
Wed Oct 31 14:04:50 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | M4 transmission measurement |
Loïc |
|
|
19
|
Wed Oct 31 14:03:22 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | M4 transmission measurement | The kept transmission for M4 is
2.17 ppm. Which is the value
measured after alignement (center of the |
|
|
18
|
Wed Oct 31 13:51:17 2018 |
Loïc Amoudry | Fixed | info | lasers and optics | Optical room | Change of the 3 ULE mirrors by 3 spare ULE mirrors | First finesse measurement 20 266, FSR 133.351
MHz under vacuum |
|
|
17
|
Wed Oct 31 13:48:58 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | M1 transmission measurement | Center of M1:
I |
|
|
16
|
Wed Oct 31 13:44:22 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Finesse vs power by difference between main and second resonance | Measurement on 25/10/2018
|
|
|
15
|
Wed Oct 31 13:43:28 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Finesse vs power by difference between main and second resonance | Measurement on 24/10/18
|
|
|
14
|
Wed Oct 31 13:43:03 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Polarization frequency | Measurement on 30/10/18.
|
|
|
13
|
Wed Oct 31 13:42:22 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Polarization frequency | Check of the frequency of the onefive locked
on each polarization of the cavity (tilt
a waveplate by 45°). |
|
|
12
|
Wed Oct 31 11:36:30 2018 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Finesse vs power by difference between main and second resonance | Measurements show that ratio decrease versus
power. BUT, the second resonance measurement
induce lower power in the cavity so the ratio |
|