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MINICAV orders MINICAV installation MINICAV commissioning MINICAV control command
  Status of commissioning, report also here plots are reports., Page 1 of 5  Not logged in ELOG logo
ID Date Author Status Type Category Locationdown Title Text Attachments
  3   Thu Apr 15 19:45:08 2021 Manar AmerFixedreportmechanicsOtherMirrors Mottors Connections * The connections to control the motors
of the mirrors are connected in the order
stated :
 20210804_Motor_connections_with_mirrors_inside_cavity_box.jpg20210804_Mottor_cables_behind_cavity_box.jpg 
  4   Thu Apr 15 19:54:19 2021 Manar AmerFixedreportmechanics | cablingOtherMirrors Mottors Connections Added the cabling to the categories 




  
  5   Mon Apr 19 18:41:03 2021 Manar AmerFixedreportmechanics | cabling | softwareOtherSetting up the MotorsA document attached that describes the
procedure needed to:

- connect the motors
 setting_up_the_motors.docx 
  6   Mon Apr 19 18:47:28 2021 Manar AmerFixedreportlasers and opticsOtherAlignment using Helium Neon Laser 05 April  2021 :  A rough alignment
of the cavity was done using the Helium Neon
Laser.
 20210202__Helium_Neon_laser_parameters.jpg 
  7   Mon Apr 19 19:11:47 2021 Manar AmerFixedreportmechanics | softwareOtherDistances between mirrors
  At the reference zero the
distance between the mirrors is (taken from
a reference presentation "status9nov2020"
 20211604__Distances_Between_mirrors.pngstatus9nov2020.pptx 
  8   Tue Apr 27 13:57:15 2021 Manar AmerFixedreportlasers and opticsOtherAlignment 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 
  9   Thu Apr 29 06:14:09 2021 Manar AmerFixedreportlasers and opticsOtherMode 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
 20212804_Fundamental_mode_in_cavity_2D_-_Position.png20212804_Cavity_Coupling_with_Koheras.jpg20212804_Temperature_Curve.jpg 
  11   Tue May 4 15:56:33 2021 Manar AmerFixedreportmechanics | lasers and optics | softwareOtherDistances between mirrors New update on the position of the Motors
for the cavity

***** we moved
 20210305_Distances_between_Mirrors_new_motor_set_point.png 
  14   Wed Jun 30 20:29:17 2021 Manar AmerFixedreportlasers and opticsOtherMode observed and cavity Lock New configuration is made. The new mode
observed in NF_Trans is the following :

 NF_Trans__2021-06-25__16-38-56.bmp 
  40   Thu Oct 21 10:24:01 2021 BlancFixedinfoutilitiesOtherPresentationsHere the first part
of all the presentations since the beginning
of the project.
 2-Présentation_LAL_22_06_2020_Corrigée.pptx4-Présentation_LAL_29_06_2020_Corrigée.pptx5-Présentation_LAL_27_07_2020.pptx6-Présentation_LAL_30_11_2020.pptx7-Présentation_LAL_07_12_2020.pptx 
  41   Thu Oct 21 10:30:38 2021 BlancFixedinfoutilitiesOtherPresentationsHere the second part
of all the presentations since the beginning
of the project.
 8-Présentation_LAL_15_04_2021_elog.pptx9-Présentation_LAL_10_05_2021_elog.pptx10-Présentation_LAL_28_06_2021.pptx 
  42   Thu Oct 21 10:32:54 2021 BlancFixedinfoutilitiesOtherPresentationsHere the last part
of all the presentations since the beginning
of the project.
 12-Présentation_LAL_13_09_2021.pptx13-Présentation_LAL_27_09_2021.pptx14-Présentation_LAL_11_10_2021.pptxPrésentation_Amplitude_23_08_2021.pptx 
  1   Tue Mar 23 18:33:16 2021 Ronic ChicheFixedinfolasers and optics | detectors and electronicsOptical roomPhase noise measurement of the Amplitude MIKANInstallation of the MIKAN.
powermeter (with OD1) just after the
oscillator shows 440mW for 4A of the MIKAN
  
  2   Tue Apr 6 09:25:47 2021 Ronic ChicheFixedinfolasers and optics | detectors and electronicsOptical roomPhase noise measurement of the Amplitude MIKANCoupling into a 50-50% fiber coupler using
the Thorlabs XYZ table NanoMax TS.
We reached 117mW after the 50% arm
  
  10   Fri Apr 30 17:41:10 2021 Aurélien MartensFixedreportlasers and optics | detectors and electronicsOptical roomLock, cavity length and finesse estimateRonic just suceeded in obtaining a reasonably
good lock on the cavity. Air flow is switched
off.
 IMG_20210430_173331.jpg 
  12   Fri May 7 15:40:10 2021 Ronic ChicheFixedinfolasers and opticsOptical roomTheoretical Finesse, Gain and CouplingFor spherical mirrors M3 and M4 (batch
C117I054) the reflectance (R) is around 99.9987%
(if T+R=1 => T=13ppm)
  
  13   Wed Jun 30 20:26:38 2021 Kevin DuprazUnder Processinfolasers and optics | detectors and electronicsOptical roomCameras CalibrationAfter installing cameras the actual calibration
are :

NF_Refl: acA1920-40gm
 NF_Refl_calib_hex2mm__2021-06-23__16-59-26.bmpNF_Trans_calib_hex2mm__2021-06-23__17-06-49.bmpNF_Inj_calib_DIODE__2021-06-24__10-56-00.bmpNF_Inj_calib_DIODE__2021-06-24__10-42-00.bmpNF_Trans__2021-06-25__16-38-56.bmp 
  15   Mon Sep 6 18:17:24 2021 Kevin DuprazUnder Processreportlasers and optics | detectors and electronicsOptical roomCavity lock and referencesCavity is lock and optimized with the NKT.
Input power is maximized (10mW).

Cavity mode is in attachement.
 NF_Trans_2021-09-06__17-49-00.bmp 
  16   Tue Sep 7 11:05:47 2021 Aurélien MartensFixedreportlasers and optics | detectors and electronicsOptical roomLock, cavity length and finesse estimatewe observed that the transmitted light
coming from the cavity is made of the cavity
mode light and the scattered light on the
  
  17   Tue Sep 7 14:27:07 2021 BlancFixedinfolasers and opticsOptical roomPolarisation Results of the NKTI made many tests about polarization and
we can see some points thanks to the following
figures :
 Ellipsicité_NKT.PNGPolar_horizontale_fonction_pussance_NKT.PNGPolar_verticale_fonction_pussance_NKT.PNGPolarisation_Ag_VS_Diélec.PNG 
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