| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
55
|
Wed Feb 5 16:46:01 2020 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | SBOX mirrors cleaned | Today we put the cavity to vacuum (~ 0.1
mBar) and we measured again the Finesse with
Koheras and modulation technique. |
|
|
56
|
Thu Feb 6 11:01:08 2020 |
Ronic Chiche | Fixed | report | lasers and optics | Optical room | analysis of stored and reflected power | with this Finesse around 22-23k, the technique
comparing TRANSMISSION and REFLECTION signals
doesn't work, even in taking into account |
|
|
57
|
Thu Feb 6 16:58:57 2020 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Power up to 48kW crater effect again | As we said, after glow discharge and spin
coater we recovered a low power finesse ~23000
(aligning away from the M1 crater). |
|
|
60
|
Wed Dec 16 12:36:37 2020 |
Loïc Amoudry | Fixed | report | lasers and optics | Optical room | Mirror's cleaning and microscope imaging | On 10th of december 2020 we cleaned the
SBOX mirrors and took microscope images
(the name of the images indicates what they |
14x |
|
61
|
Tue Jan 5 12:38:04 2021 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Transmission Measurements for the Mirrors. |
Thursday 10 December 2020:
First Test Measurement - Inside Box
The
transmission ( T ) for the mirrors of SBOX |
6x |
|
62
|
Tue Jan 12 10:44:57 2021 |
Ronic Chiche | Fixed | issue | lasers and optics | Optical room | Origami SN2440 133MHz laser power measurment... and failure | we received from NKT the Origami SN2440
133MHz oscillator from repair on 2020/12/17
and we measured the power trend from |
|
|
63
|
Thu Jun 10 17:55:15 2021 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | Origami SN2440 133MHz laser tests | Today, we received the Origami SN2440 133MHz
oscillator from repair (NKT mentioned a defective
wire inside the controller....) |
|
|
76
|
Wed Apr 20 19:05:37 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | KBox Alignment | Starting with the alignment of the KBox
using CW Koheras.
The size of the CW output from |
7x |
|
77
|
Mon Apr 25 17:28:29 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | SBox alignment, using CW laser Koheras
power 1 mW
|
6x |
|
78
|
Mon Apr 25 17:58:01 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | After pointers and Advice from Aurélien,
improvement of the beam alignment
through M1 and M2 irises was done. |
|
|
79
|
Mon Apr 25 18:02:09 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | Remember to update the position of the
reference Irises tomorrow !!!!
|
|
|
80
|
Tue Apr 26 20:08:10 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment |
Adjust the placement of
the Irises (done at the start of the |
9x |
|
81
|
Wed Apr 27 22:13:37 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | Finished the alignment of the SBox with
M1 of SBox placed, to be changed to gamma
factory mirror later |
|
|
83
|
Mon May 9 18:36:48 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | Last week In FP cavity we had all SBox
mirrors including the damaged M1 mirror.
The beating was observed with just |
|
|
84
|
Mon May 9 19:05:35 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | Today; replaced the M1 SBox mirror with
M1 from gamma factory , following the previous
alignment. |
|
|
86
|
Wed May 11 09:19:48 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | Yesterday, to find the source of why the
mode is deformed, I tried to rotate the mirrors
to see if there is a change. |
|
|
88
|
Wed May 11 21:10:27 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | M2 Sbox changed to spare. Alignment of
M2 was redone.
With the help of Ronic , We observe |
|
|
90
|
Tue May 24 22:05:48 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | SBox Alignment | The external and internal alignment was
redone.
External Alignment : the collimator |
7x |
|
91
|
Tue May 24 22:11:40 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Fundamental Mode TEM00 | The current setup for the SBox has a beam
viewer and 2 photodiodes placed at reflection
and transmission. |
|
|
92
|
Wed May 25 17:34:29 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Fundamental Mode TEM00 | Adding images from the transmission after
the spherical mirrors M3 and M4 window for
a resonating mode inside the cavity. |
|