| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
94
|
Wed Jun 8 10:58:15 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Fundamental Mode TEM00 | Images of the Transmitted beam at M2 mirror
at different days.
The first one was from last week, |
|
|
95
|
Wed Jun 8 11:10:17 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Start with the cavity lock images attached,
taken from last week, at
start we have a coupling ~ 5% and started |
|
|
96
|
Wed Jun 8 11:24:35 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Telescope - Spacial Matching | Divergence of the CW beam out of the collimator
measured after 1 meter to be
2 |
|
|
97
|
Wed Jun 8 11:31:47 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Current setup at SBox for locking the cavity
After spacial matching, the coupling
increased to ~ 15 - 20 % |
|
|
98
|
Thu Jun 9 19:59:42 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Cavity locked today under vacuum and no
airflow, it is stable over a long time
the alignment was improved and |
|
|
99
|
Tue Jun 21 23:52:28 2022 |
Manar Amer | Fixed | report | mechanics | lasers and optics | detectors and electronics | Optical room | Menhir Pulsed Laser | The SBox Length (FSR), was changed to match
the repetition rate of the Menhir
pulsed laser Frep = 216.6625 MHz |
|
|
100
|
Mon Jun 27 08:52:46 2022 |
Manar Amer | Fixed | report | lasers and optics | vacuum | Optical room | SBox Finesse at 216.6625 MHz | The Sbox currently has the injection from
ThomX installed T ~ 120 ppm , M2 planar from
Sbox spare and M3 / M4 spherical mirrors |
|
|
101
|
Wed Jul 6 18:34:12 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | software | Optical room | Cavity Lock | Closing the series for the setup
The cavity was only locked @ 133.33
MHz but the Finesse was not measured |
|
|
102
|
Wed Jul 6 18:35:38 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Fundamental Mode TEM00 | Closing series of 00 mode for FSR @ 133.33
MHz
|
|
|
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
|
|
|
104
|
Wed Jul 6 18:39:25 2022 |
Manar Amer | Fixed | report | lasers and optics | vacuum | Optical room | SBox Finesse at 216.6625 MHz | Max Finesse obtained @ 4 mirror setup was
~ 19 300
With M1 from ThomX , M2/M3/M4 from |
|
|
105
|
Wed Jul 6 18:39:38 2022 |
Manar Amer | Fixed | report | lasers and optics | vacuum | Optical room | SBox Finesse at 216.6625 MHz |
|
|
|
106
|
Wed Jul 6 19:57:17 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | Optical room | 2 Mirror Setup @ 216.6 MHz | The SBox cavity setup was changed to have
only 2 mirrors M1 plane and M2 spherical,
both from ThomX |
|
|
107
|
Fri Jul 8 17:09:26 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Images of ThomX mirrors | Under the microscope,
the spherical mirrors show the
deposit of metal dots on the reflecting surface |
|
|
108
|
Fri Jul 8 17:10:44 2022 |
Manar Amer | Fixed | report | lasers and optics | Optical room | Images of ThomX mirrors | Mirror images in the previous log showing
the metal deposit of the coating of the spherical
mirrors |
|
|
109
|
Fri Jul 8 17:48:48 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | Optical room | 2 Mirror Setup @ 216.6 MHz | The cavity was realigned using irises instead
of pinholes, gave a better alignment.
The inside of the box, the spherical |
|
|
110
|
Fri Jul 8 19:37:24 2022 |
Manar Amer | Fixed | report | lasers and optics | detectors and electronics | Optical room | 2 Mirror Setup @ 216.6 MHz | Update for Finesse measurement, The cavity
was put under vacuum ~ 1.1*10^-1 mbar
and the alignment and coupling |
|
|
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; |
|