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  Status of commissioning, report also here plots are reports., Page 11 of 24  Not logged in ELOG logo
ID Date Author Status Type Categorydown Location Title Text Attachments
  127   Fri Feb 4 10:59:56 2022 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooCavity Lock and Finess measurment one thing which could reduce the Finesse
is the L-shape metal piece if it is slightly
inserted in the FP-cavity mode path.
 apercu_03.jpgBras_manipulateur.jpg 
  178   Mon Jan 9 14:03:16 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooAlphanov amplifier beam profile Data Adding the schematic of the measurements.,

the 4°
Beam Deviation, AR Coating ( B coating)
 8x 
  183   Mon Jan 30 17:40:10 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooAlphanov amplifier beam profile Data This Morning with Victor the amplifier
was turned on @ 20% amplification (output
~ 9 W ) for approximately 3 hours and no
  
  195   Tue Mar 14 16:54:48 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooAmplifier Beam Profile over time This morning, with Ronic, we opened the
compressor box to observe if there is any
misalignment of the mounts or the CVBG's
 comparision_Between_Beam_profile_over_time.jpg 
  196   Wed Mar 15 21:13:07 2023 Manar AmerFixedreportlasers and optics | detectors and electronicsThomX iglooAmplifier Beam Profile over time This morning we took data of the beam profile
at 4 different points to see the evolution
of
 10x 
  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 !!

  
  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 
  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 
  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 
  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 
  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 
  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 
  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
  
  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 
  233   Wed Aug 2 13:13:52 2023 Ronic ChicheFixedissuelasers and optics | detectors and electronicsThomX igloowork with HV voltage on the Laselockpresently, the voltage on the laser PZT
is 0-10V, but during the several runs we
did, this voltage is too low to compensate
  
  234   Tue Sep 5 17:59:24 2023 Ronic ChicheFixedissuelasers and optics | detectors and electronicsThomX igloowork with HV voltage on the LaselockYesterday, I checked the 2 output HV channels
of the LaseLock : they work properly but
the noise is bigger than the low voltage
  
  237   Wed Sep 6 19:57:48 2023 Ronic ChicheFixedinfolasers and optics | detectors and electronicsThomX iglooFast feedback loop between laser and FP cavitytoday, we tried to lock the FP cavity with
the Smaract motors ON (with option -LV).
we know the Smaract controllers produce
  
  240   Thu Sep 7 19:23:36 2023 Ronic ChicheFixedinfolasers and optics | detectors and electronicsThomX iglooFast feedback loop between laser and FP cavitytoday, after the several unsuccessful attempt
yesterday to get an improvement in the lock,
we decided to "rebuild"
 20230907_182412.jpg20230907_182442.jpg 
  248   Wed Sep 13 17:57:08 2023 Ronic ChicheFixedissuelasers and optics | detectors and electronicsThomX igloowork with HV voltage on the LaselockThis afternoon, I connected the HV output
of the Laselock (instead of the standard
0-10V output) to the FP-cavity PZT to increase
  
  260   Fri Sep 15 18:27:24 2023 Ronic ChicheFixedinfolasers and optics | detectors and electronicsThomX iglooFast feedback loop between laser and FP cavitythis afternoon, we tried to better understand
how to drive properly the EOM to kill high
frequency noise.
  
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