| ID |
Date |
Author |
Status |
Type |
Category |
Location |
Title |
Text |
 |
|
89
|
Fri May 26 18:08:27 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Modulation EOM | EOM dans la lockline:
Image 1 (sans 2è étage):
on voit la modulation en réflexion |
   |
|
88
|
Fri Apr 28 15:28:06 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Verification CEP | On a voulu véifier que le changement
de couplage induit par la CEP était
une conséquence du changement de CEP |
|
|
87
|
Wed Apr 26 16:39:59 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Couplage and CEP | Pour vérifier la cohérence
des mesures précédentes, j'ai
fait la même analyse avec l'intensité |
 |
|
86
|
Tue Apr 25 12:27:08 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Couplage and CEP | Les courbes avec les barres d'erreurs
du fit dans le titre.
|
 |
|
85
|
Mon Apr 24 18:41:27 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Couplage and CEP | Pour avoir une idée du couplage
en fonction de la CEP, j'ai pris 11 séries
de 10 mesures de l'intensité réfléchie |
 |
|
84
|
Wed Apr 5 13:16:38 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Couplage différents setups | Pour voir à quel endroit le couplage
diminuait drastiquement, j'ai mesuré
celui-ci pour différentes configurations. |
|
|
83
|
Wed Apr 5 13:09:49 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Taille faisceau | J'ai fait une comparaison de la taille
du faisceau sur les miroirs de la cavité
pour savoir si le mauvais couplage dans la |
  |
|
82
|
Mon Mar 27 17:24:18 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Caractérisation Cavité et Polar | J'ai relevé la position des
miroirs pour faire une comparaison avec ce
que l'on avait précédement |
  |
|
81
|
Mon Mar 27 15:48:37 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Caractérisation Cavité et Polar | Pour caractériser la cavité,
j'ai injecté différents
états de polarisation (non locké) |
12x |
|
80
|
Mon Mar 6 12:21:59 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Couplage | Voici le résultat de la manip sur
le couplage sur la voie réfléchie
pour deux états de polarisation orthogonaux. |
   |
|
79
|
Fri Mar 3 17:55:17 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Dégénérescence cavité polar | En étant locké avec la lockline,
j'ai fait plusieurs mesures à
différents états de polarisation. |
12x |
|
78
|
Thu Mar 2 17:42:51 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Polar cavité | Après avoir enlevé le PBS
en transmission de la cavité j'ai
cherché à atteindre le maximum |
 |
|
77
|
Thu Mar 2 11:42:19 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Polar cavité | Après avoir locké avec la
lockline et retiré le glan et la paire
de lambda sur la voie PDH, j'ai observé |
   |
|
76
|
Thu Mar 2 11:02:12 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Calcul Polar | J'ai fait le calcul de la puissance
du Tangor qui passait à travers le
glan avec 3 hypothèses : |
   |
|
75
|
Mon Feb 20 12:49:47 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Update schéma manip | Le dernier schéma de la manip avec
plus d'infos. |
|
|
74
|
Fri Feb 17 18:02:11 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Mesure polarisation voie de réflexion | J'ai fait les mesures de polarisation
sur la voie de réflexion pour voir
la polarisation avant le glan et après |
18x |
|
73
|
Thu Feb 9 17:43:11 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Burst Stacking in cavity | Les trois premières images sont
la premières injection d'un burst
dans la cavité à 3 instant |
7x |
|
72
|
Wed Feb 8 18:48:36 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Fin mesures de Polarisation Lockline et Tangor et Burst Cav | Avec un setup plus fiable que précédemment,
on a remesuré la polarisation du Tangor
et de la lockline et en ajustant le combiner |
12x |
|
71
|
Mon Feb 6 16:51:51 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Optimisation de la polariation Tangor and Lockline | J'ai optimisé la polarisation
du Tangor et de la Lockline en jouant sur
l'angle du combiner et sur la lambda/2 |
13x |
|
70
|
Thu Feb 2 17:40:10 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Schéma Manip | Ci-dessous le schéma actuel de la
manip. |
|
|
69
|
Thu Feb 2 16:26:30 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Combiner Layertec | La doc du combiner Layertec servant à
combiner la lockline et le Tangor. |
 |
|
68
|
Thu Feb 2 16:21:05 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Mesures de Polarisation Lockline et Tangor | Vérification des polarisations après
le combiner pour le Tangor et la Lockline.
On remarque certains paramètres |
11x |
|
67
|
Thu Feb 2 16:06:54 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Mesures de Polarisation | Correction su l'orientation de l'ellipse.
|
|
|
66
|
Mon Jan 30 14:39:52 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Mesures de Polarisation | En récupérant la transmission
du miroir M3 sphérique sortant de
la cavité, on a pu faire une mesure |
   |
|
65
|
Thu Jan 26 22:49:46 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Nouvelles positions moteurs et calibrations camera | Positions moteurs :
5.198865 ; 5.198596 ; -2.9 ; -2.9
Calibration caméras : |
 |
|
64
|
Wed Jan 25 12:18:25 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Position des miroirs et gain photodiode | Nouvelle position des miroirs :
5.198865 ; 5.199305 ; -2.9 ; -2.9
Photodiode de transmission, gain |
|
|
63
|
Wed Jan 25 12:12:36 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Mesure de finesse |
|
|
|
62
|
Fri Jan 20 18:01:22 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Mesure de finesse | Fréquence centrale : 879.48 MHz
FWHM mesurée à la
main sans sweep : 120 / 130 KHz |
|
|
61
|
Thu Jan 19 18:20:02 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Suite Mesures de puissance lockline |
|
|
|
60
|
Thu Jan 19 15:05:58 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Suite Mesures de puissance lockline | Changement d'AOM pour passer sur l'AOM
200 MHz.
Le schéma suivant récapitule |
 |
|
59
|
Thu Jan 19 14:56:27 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Tests et mesures lockline |
|
 |
|
58
|
Wed Jan 18 17:52:33 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Tests et mesures lockline | Mesures de puissance fibres lockline :
AVANT POLISSAGE
injection premier étage |
|
|
57
|
Tue Jan 10 18:04:20 2023 |
Blanc | Fixed | info | lasers and optics | Optical room | Données pour la baisse en cadence | Position Cam :
692;363 NF_inj
520;193 FF_inj |
7x |
|
56
|
Tue Jun 14 11:16:37 2022 |
Blanc | Under Process | issue | lasers and optics | Optical room | Problèmes Cavitée | Précédentes ref pour lesquelles
la manip fonctionnait :
Caméras : |
  |
|
55
|
Thu May 19 10:04:05 2022 |
Blanc | Under Process | report | lasers and optics | Optical room | Changement cadence et duty cycle + ref cam | - Prise des nouvelles ref caméras
: NF{709;371} , FF{389;280} [Image 1 &
2] |
    |
|
54
|
Tue May 17 17:28:31 2022 |
Blanc | Fixed | issue | lasers and optics | detectors and electronics | Optical room | Différence de fréquence Tangor/Lockline | - On a observé que le fondamental
du Tangor et celui de la Lockline n'étaient
pas situés à la même |
  |
|
53
|
Mon Mar 28 17:10:33 2022 |
Blanc | Fixed | info | lasers and optics | detectors and electronics | Optical room | input and output power of the AOM 50MHz | Input power of the AOM :
150mW
output power of the AOM : |
|
|
52
|
Fri Dec 17 17:03:34 2021 |
Kevin Dupraz | Under Process | report | lasers and optics | Optical room | Manip 17 12 2021 reprise réf nouvelle injection pour polarisation | Tangor : 4.2W
* Réalignement de l'injection
suite aux modifications : |
 |
|
51
|
Thu Dec 16 18:16:12 2021 |
Blanc | Under Process | info | lasers and optics | Optical room | Changements et ajout d'optiques | Optiques ajoutées :
- splitter 90/10 au début
de la voie de réflexion, pour éjecter |
|
|
50
|
Thu Dec 16 12:13:52 2021 |
Kevin Dupraz | Under Process | report | lasers and optics | Optical room | Manip 16 12 2021 montée en puissance |
|
|
|
49
|
Thu Dec 16 12:12:10 2021 |
Kevin Dupraz | Under Process | report | lasers and optics | Optical room | Manip 16 12 2021 montée en puissance | Matin:
* Redémarrage Tangor 4W
- couplage 15% |
|
|
48
|
Thu Dec 16 10:40:55 2021 |
Kevin Dupraz | Under Process | report | lasers and optics | Optical room | Manip 14 12 2021 injection optimization (and calibration) | Après-midi :
* Optimisation
de l'alignement en injection pour avoir |
|
|
47
|
Tue Dec 14 12:59:07 2021 |
Kevin Dupraz | Under Process | report | lasers and optics | Optical room | Manip 14 12 2021 injection optimization (and calibration) | Matin :
moteurs :
M1, M2 (plans): 5.110500m |
|
|
46
|
Fri Dec 10 16:57:56 2021 |
Kevin Dupraz | Under Process | report | lasers and optics | Optical room | Manip 10 12 2021 (optimization injection Burst) | Manip 10/12/2021
Après recherche de la résonnance
principale |
 |
|
45
|
Tue Dec 7 11:48:33 2021 |
Kevin Dupraz | Under Process | info | lasers and optics | detectors and electronics | Optical room | Cameras Calibration | After check a mistake has been found on
the magnification. This seems to be the good
calibration (feel free to cross check). The |
 |
|
44
|
Mon Dec 6 11:22:08 2021 |
Kevin Dupraz | Under Process | info | lasers and optics | detectors and electronics | Optical room | Cameras Calibration |
|
 |
|
43
|
Thu Dec 2 16:12:17 2021 |
Aurélien Martens | Fixed | report | mechanics | software | Optical room | new smaract positions | M1 and M2 at 5.1085mm and M3 and M4 at
-2.9mm |
|
|
42
|
Thu Oct 21 10:32:54 2021 |
Blanc | Fixed | info | utilities | Other | Presentations | Here the last part
of all the presentations since the beginning
of the project. |
   |
|
41
|
Thu Oct 21 10:30:38 2021 |
Blanc | Fixed | info | utilities | Other | Presentations | Here the second part
of all the presentations since the beginning
of the project. |
  |
|
40
|
Thu Oct 21 10:24:01 2021 |
Blanc | Fixed | info | utilities | Other | Presentations | Here the first part
of all the presentations since the beginning
of the project. |
    |
|
39
|
Thu Oct 21 09:44:35 2021 |
Blanc | Fixed | info | mechanics | lasers and optics | detectors and electronics | Optical room | 1GHz oscillator Frep measurement | The optical spectrum of the GHz oscillator:
FWHM ~ 4nm
|
|
|
38
|
Wed Oct 20 15:27:51 2021 |
Ronic Chiche | Fixed | report | lasers and optics | Optical room | Amplitude GHz oscillator phase noise with PZT effect | Thorlabs PZT datasheet.
Reference: PC4QR
|
|
|
37
|
Wed Oct 20 14:54:00 2021 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | Optical room | Phase noise measurement of the Amplitude MIKAN | MIKAN phase noise and RIN measurements:
|
|
|
36
|
Wed Oct 20 12:36:15 2021 |
Ronic Chiche | Fixed | report | lasers and optics | Optical room | Amplitude GHz oscillator phase noise with PZT effect | 3 phase noise measurements made on the
Amplitude GHz oscillator with different PZT
configurations : |
 |
|
35
|
Tue Oct 19 18:27:20 2021 |
Ronic Chiche | Fixed | report | mechanics | lasers and optics | detectors and electronics | Optical room | PZT resonant frequencies | we have excited the PZT with a swept sinus
wave from 1kHz to 10kHz and from 10kHz to
100kHz. |
 |
|
34
|
Fri Oct 8 16:02:19 2021 |
Blanc | Fixed | info | lasers and optics | detectors and electronics | Optical room | Setup and measurements | To summerize the results of this week :
We made the setup in attachement
5 and align it to have the good mode in the |
    |
|
33
|
Thu Oct 7 17:53:53 2021 |
Blanc | Fixed | info | lasers and optics | detectors and electronics | Optical room | Finess and coupling measurement | We did the measurement of the Finess and
coupling with the NKT, with 2 EOM, without
AOM (so the lock signal is noisy), on the |
 |
|
32
|
Tue Oct 5 18:24:53 2021 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | Locking with fast analog loop on AOM | in addition to the standard locking scheme
with the GHz laser PZT,
we added an AOM after the PDH modulation |
|
|
31
|
Tue Oct 5 16:23:04 2021 |
Aurélien Martens | Fixed | report | detectors and electronics | software | Optical room | new position of smaract motors | after 3hours (1pm --> 4pm) the cavity
moved by 12um in total
new positions: +5.1065mm on M1 |
|
|
30
|
Tue Oct 5 12:23:51 2021 |
Aurélien Martens | Fixed | report | detectors and electronics | software | Optical room | new position of smaract motors | the M1 is not at 5.1045mm to put the fundamental
on the scanning range of the laser piezo
M2 still at 5.104mm |
|
|
29
|
Tue Oct 5 12:18:34 2021 |
Aurélien Martens | Fixed | report | detectors and electronics | software | Optical room | new position of smaract motors | to find the fundamental mode we moved the
cavity mirrors to new positions:
+5.104mm for both planar mirrors |
|
|
28
|
Tue Oct 5 11:35:16 2021 |
Aurélien Martens | Fixed | report | detectors and electronics | software | Optical room | new position of smaract motors | a cavity length measurement gave 880.9Mhz.
The m1/M2 have been put to +5.1000mm both
M3/M4 srill at -2.9mm |
|
|
27
|
Mon Oct 4 15:38:43 2021 |
Aurélien Martens | Fixed | info | detectors and electronics | Optical room | phone is noise | doing the sensitivty measurement of the
piezo we observed satellite peaks around
800 to 900 Mhz. Removing the phones from |
|
|
26
|
Mon Oct 4 15:24:14 2021 |
Aurélien Martens | Fixed | report | lasers and optics | detectors and electronics | Optical room | piezo actuation range | A 10V applied on the laser piezo was found
to induce a frequecny change of about 5kHz,
compatible with expectations from the piezo |
|
|
25
|
Mon Oct 4 15:10:17 2021 |
Aurélien Martens | Fixed | report | mechanics | detectors and electronics | software | Optical room | new position of smaract motors | following the measuremetn at 879.9 MHZ
of the laser theoptical cavity length has
been adjusted to that value from 876MHz setting |
|
|
24
|
Mon Oct 4 14:57:04 2021 |
Aurélien Martens | Fixed | info | detectors and electronics | software | Optical room | ip adress of smaract driver | the ip adress of the smaract driver is
now 10.0.53.10:5000
please think about putting such |
|
|
23
|
Fri Oct 1 16:55:47 2021 |
Blanc | Fixed | info | mechanics | lasers and optics | detectors and electronics | Optical room | 1GHz oscillator Frep measurement | a previous cavity FSR measurement was giving
a center frequency around 867.5MHz.
the
present 1GHz oscillator Frep measurement |
|
|
22
|
Fri Sep 24 09:55:35 2021 |
Manar Amer | Under Process | report | lasers and optics | Optical room | Reflection Line Polarization Measuremet | With the help of Ronic the cavity was locked
in preparation to measure the polarization
of the reflection line when the cavity is |
|
|
21
|
Thu Sep 16 18:23:13 2021 |
Blanc | Fixed | info | lasers and optics | Optical room | Polarization Results in transmission | After data processing, I finally find the
polarization in transmissin of the FPC. As
you can see below, the polarisation is not |
|
|
20
|
Thu Sep 9 16:34:37 2021 |
Blanc | Fixed | info | lasers and optics | Optical room | Ring light in the cavity | We put a diaphragm in the input beam but
it doesn't work to suppress the ring
light only but it attenuates the whole transmitted |
|
|
19
|
Wed Sep 8 10:50:38 2021 |
Blanc | Fixed | info | lasers and optics | Optical room | Polarisation Results of the NKT | To have the polarisation, we must have
1 value because the laser in entry of the
system has 1 polar. Due to that, the graphe |
|
|
18
|
Tue Sep 7 17:48:50 2021 |
Blanc | Fixed | info | lasers and optics | detectors and electronics | Optical room | Locking of the cavity and setup changing | We change the setup a bit to have the same
polarization on the photodiode and the PDH
(in reflexion of the cavity). CF: schematics |
|
|
17
|
Tue Sep 7 14:27:07 2021 |
Blanc | Fixed | info | lasers and optics | Optical room | Polarisation Results of the NKT | I made many tests about polarization and
we can see some points thanks to the following
figures : |
   |
|
16
|
Tue Sep 7 11:05:47 2021 |
Aurélien Martens | Fixed | report | lasers and optics | detectors and electronics | Optical room | Lock, cavity length and finesse estimate | we observed that the transmitted light
coming from the cavity is made of the cavity
mode light and the scattered light on the |
|
|
15
|
Mon Sep 6 18:17:24 2021 |
Kevin Dupraz | Under Process | report | lasers and optics | detectors and electronics | Optical room | Cavity lock and references | Cavity is lock and optimized with the NKT.
Input power is maximized (10mW).
Cavity mode is in attachement. |
|
|
14
|
Wed Jun 30 20:29:17 2021 |
Manar Amer | Fixed | report | lasers and optics | Other | Mode observed and cavity Lock | New configuration is made. The new mode
observed in NF_Trans is the following :
|
|
|
13
|
Wed Jun 30 20:26:38 2021 |
Kevin Dupraz | Under Process | info | lasers and optics | detectors and electronics | Optical room | Cameras Calibration | After installing cameras the actual calibration
are :
NF_Refl: acA1920-40gm |
    |
|
12
|
Fri May 7 15:40:10 2021 |
Ronic Chiche | Fixed | info | lasers and optics | Optical room | Theoretical Finesse, Gain and Coupling | For spherical mirrors M3 and M4 (batch
C117I054) the reflectance (R) is around 99.9987%
(if T+R=1 => T=13ppm) |
|
|
11
|
Tue May 4 15:56:33 2021 |
Manar Amer | Fixed | report | mechanics | lasers and optics | software | Other | Distances between mirrors | New update on the position of the Motors
for the cavity
***** we moved |
|
|
10
|
Fri Apr 30 17:41:10 2021 |
Aurélien Martens | Fixed | report | lasers and optics | detectors and electronics | Optical room | Lock, cavity length and finesse estimate | Ronic just suceeded in obtaining a reasonably
good lock on the cavity. Air flow is switched
off. |
|
|
9
|
Thu Apr 29 06:14:09 2021 |
Manar Amer | Fixed | report | lasers and optics | Other | Mode observed and cavity Lock | ** Following up from yesterday an observation
about the TM00 mode : it has been seen with
similar dimensions and its position is the |
  |
|
8
|
Tue Apr 27 13:57:15 2021 |
Manar Amer | Fixed | report | lasers and optics | Other | Alignment using Koheras | Following the Helium Neon Alignment + change
in the distance between the mirrors to be;
M3-M4 = 90.5 mm , M1-M2 = 80.2 mm -→ |
6x |
|
7
|
Mon Apr 19 19:11:47 2021 |
Manar Amer | Fixed | report | mechanics | software | Other | Distances between mirrors |
At the reference zero the
distance between the mirrors is (taken from
a reference presentation "status9nov2020" |
 |
|
6
|
Mon Apr 19 18:47:28 2021 |
Manar Amer | Fixed | report | lasers and optics | Other | Alignment using Helium Neon Laser | 05 April 2021 : A rough alignment
of the cavity was done using the Helium Neon
Laser. |
|
|
5
|
Mon Apr 19 18:41:03 2021 |
Manar Amer | Fixed | report | mechanics | cabling | software | Other | Setting up the Motors | A document attached that describes the
procedure needed to:
- connect the motors |
|
|
4
|
Thu Apr 15 19:54:19 2021 |
Manar Amer | Fixed | report | mechanics | cabling | Other | Mirrors Mottors Connections | Added the cabling to the categories
|
|
|
3
|
Thu Apr 15 19:45:08 2021 |
Manar Amer | Fixed | report | mechanics | Other | Mirrors Mottors Connections | * The connections to control the motors
of the mirrors are connected in the order
stated : |
 |
|
2
|
Tue Apr 6 09:25:47 2021 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | Optical room | Phase noise measurement of the Amplitude MIKAN | Coupling into a 50-50% fiber coupler using
the Thorlabs XYZ table NanoMax TS.
We reached 117mW after the 50% arm |
|
|
1
|
Tue Mar 23 18:33:16 2021 |
Ronic Chiche | Fixed | info | lasers and optics | detectors and electronics | Optical room | Phase noise measurement of the Amplitude MIKAN | Installation of the MIKAN.
powermeter (with OD1) just after the
oscillator shows 440mW for 4A of the MIKAN |
|