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New entries since:Thu Jan 1 01:00:00 1970
ID Date Author Status Type Category Location Title Text Attachments
  216   Tue Jun 6 01:12:11 2023 Manar AmerFixedreportlasers and optics | detectors and electronics | cabling | softwareThomX iglooCavity Lock - Alphanov Amplifier Today, I installed a power meter at the
transmission point of the 1st spherical mirror
, transmission 3 ppm (direct from cavity
 20230605_tek00001_33uW.png20230605_tek00002_82uW.png 
  215   Fri Jun 2 10:54:25 2023 Manar AmerFixedreportlasers and optics | detectors and electronics | cabling | softwareThomX iglooCavity Lock - Alphanov Amplifier Yesterday, with Ronic we locked ThomX cavity
on the second resonance 

Laser : 33.36 MHz , Amplifier :
 13x 
  214   Thu Jun 1 18:15:04 2023 Ronic ChicheFixedinfolasers and opticsThomX igloo33MHz oscillator + Alphanov amplifier lockfinding the right modulation/demodulation
PDH phase is very difficult on the main resonance
because the we get non stationnary signals
  
  213   Thu Jun 1 10:31:45 2023 Ronic ChicheFixedinfolasers and opticsThomX igloo33MHz oscillator + Alphanov amplifier lockthe last tries to lock the 33MHz + amplifier
to the 30k Finesse FP-cavity were unsuccessful.

during a laser Frep scan using
 120705_Displacement_of_cylindrical_piezo_ceramics.xls 
  212   Tue May 30 18:32:37 2023 Manar AmerFixedreportlasers and optics | detectors and electronics | cabling | softwareThomX iglooCavity Lock - Alphanov Amplifier This morning, while trying Guillaume solution
of disconnecting the 24 V necessary to the
second and third stage and raise the threshold
 tek00000.png 
  211   Mon May 22 16:07:12 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooPW laser Injection into cavity Today with Ronic and Daniele we attempted
to lock the cavity, but the alphanov amplifier
did not turn on because of an error in MMD3
 2023-05-22_MMD3_error_on_alarm_window.jpg2023-05-22_alphanov_software.jpg 
  210   Wed Apr 19 16:41:46 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooPW laser Injection into cavity Added Note: the coupling we get is at low
power, only preamplifier is on (~ 300 mW)

was done at the end due to excitation
  
  209   Wed Apr 19 16:39:28 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooPW laser Injection into cavity
On Monday with Daniele,

we
did full characterization of amplifier beam
@ 10% amplification, adjusted the telescope
 20230418_size_of_beam_before_injection_window_at_10percetage_ampli.jpg20230418_coupling_at_the_start_only_alignment_improved1.jpg20230418_zoom_on_Oscilliscope_signal_fundamental_mode.jpg20230418_coupling_after_improving_it_with_regulator_on_attempting_to_lock.jpg 
  208   Thu Apr 13 17:48:49 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooPW laser Injection into cavity Yesterday,


we installed the second
high power reflecting mirrors at the output
 20230412_pulsed_cav_mode.bmp 
  207   Tue Apr 11 16:58:16 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooFP Finesse measurement using CWThis morning, with Ronic and Daniele, we
locked the cavity again (The lock was relatively
easy and stable during the reading of the
 20230411_first_Finesse_reading.JPG20230411_second_Finesse_reading.JPG20230411_Beam_Profile_position_differance_when_changing_FSR.JPG 
  206   Fri Apr 7 15:56:40 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooCW FP Cavit lock This morning with Daniele and Viktor,

- we confirmed the "potato"
mode was well centered on the injected beam
 20230407_103103-2.jpg 
  205   Fri Apr 7 00:26:11 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooCW FP Cavit lock Yesterday morning we locked the cavity
on a strange mode in the cavity (we call
it mode, but not sure what it is ??)
 20230406_setup.jpg20230406_transmission_S2-P4.jpg20230406_Cavity_Lock.jpg 
  204   Tue Apr 4 13:03:23 2023 Manar AmerFixedreportlasers and optics | vacuum | detectors and electronicsThomX iglooCavity Alighnment Today, we prepared lenses for a telescope
for the CW laser injection into the cavity,
yet to be installed
 20230404_P4_Transmission.jpg20230404_vacuum_level.jpg 
  203   Tue Mar 28 13:56:52 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooCavity Alighnment Last week, with Ronic and Victor we aligned
the cavity using CW laser (Koheras)


we have also installed
 9x 
  202   Mon Mar 20 17:55:25 2023 Ronic ChicheFixedreportlasers and optics | softwareThomX iglooAlphanov amplifier beam profile measurementdue to several "case temperature"
issues, I change the "Max case temperature"
in the "general config" of the
  
  201   Mon Mar 20 17:39:28 2023 Ronic ChicheFixedinfoutilitiesThomX iglooPower shut down on Saturday the 18thToday, I restarted all the equipements
:

Chiller                                                
  
  200   Mon Mar 20 17:23:09 2023 Ronic ChicheFixedinfolasers and opticsOptical room33MHz laser SN2439 back to OrsayAs the general local network for the FP-cavity
devices is 192.168.xxx.xxx, I changed the
IP adress of the smaract laser motors (Frep
 MCS_Network_Interface_Configuration_Guide-1.pdf20230320_154643[1].jpg 
  199   Mon Mar 20 09:33:54 2023 Ronic ChicheFixedinfoutilitiesThomX iglooPower shut down on Saturday the 18thAll the equipments have been switched off
on Friday 17th due to a power shut down on
Saturday 18th :
  
  198   Fri Mar 17 18:54:19 2023 Manar AmerFixedreportlasers and opticsOptical roomNew Mirrors from LMA _ ImagesToday we tested a mirror from one patch

image is for the front face of
the mirror
 20230317_Images_of_New_Mirrors-compressed.pptxMirror_Tested.jpgWhatsApp_Image_2023-03-17_at_6.39.44_PM.jpgimage006.jpg 
  197   Wed Mar 15 21:14:51 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooAmplifier Beam Profile over time Information about today's work is added
to logBook !!

  
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