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ID Date Authordown Status Type Category Location Title Text Attachments
  71   Wed Oct 9 11:41:11 2019 Loïc AmoudryFixedinfolasers and opticsOptical roomOnefive spectrum and CVBG spectrumThe Onefive spectrum has shifted a little
bit to lower lambda. It's still enough
for the experiment (3mW injection of ampli		  191008_spectrumbeforecvbg.PNG191008_spectrumaftercvbg.PNG191008_beamshapeaftercvbgthomx.PNG 
  76   Tue Oct 22 09:10:45 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomFirst mode degeneracy on ThomXYesterday, we've observed the first
degeneracy on ThomX cavity at ~115 kW stored.
The shape of the stored power on the oscilloscope		  degenere.PNGdegenere2.PNGdegenere3.PNGtek0000.png100kWThomX.png 
  77   Wed Nov 6 16:11:12 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomSpherical mirrors at closest position. FSR, finesse and beam size.The spherical mirrors are at the closest
position to get a FSR ~=33.3435 MHz. Planar
mirrors are at the largest position.		  data_finesse.isffit_finesse_17000.pngbeamsize.PNGfit.PNG 
  78   Wed Nov 13 14:44:56 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomAmplifier output power The ouput power of the ThomX amplifier
has been measured as a function of the 3rd
stage pumps current (0A is 1st and 2nd stage		  dichroic.PNGcourbe.PNGpower.xlsx 
  79   Wed Nov 13 15:05:18 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomAmplifier output power  




 courbedichro.PNG 
  80   Thu Nov 21 11:37:13 2019 Loïc AmoudryFixedinfolasers and opticsOptical roomOnefive Origami 33MHz specsBeam Size Onefive added




 beam_size.xlsxBeam_size_Onefive_33.rar 
  83   Tue Nov 26 16:21:27 2019 Loïc AmoudryFixedissuevacuumOptical roomPneumatic valvesThe pneumatic valves are now plugged on
the university air network.
The air valve is fully openned for		   
  85   Wed Nov 27 13:53:57 2019 Loïc AmoudryFixedinfolasers and opticsOptical roomOnefive output powerThe pump voltage has been increased few
days ago when looking for a modlock of the
laser.		   
  86   Thu Nov 28 10:40:29 2019 Loïc AmoudryFixedinfolasers and opticsOptical roomCVBG reference and Eric Cormier calculationThe Stretcher is the "D 24-02-II",
it must be used in double path before the
amplifier injection.		  compresseurs.jpgEtireur.jpgcalcul_Eric.jpg 
  87   Tue Feb 4 14:39:56 2020 Loïc AmoudryFixedinfolasers and opticsOptical roomOnefive output powerOnefive output power measured today. 3.52
mW with OD1 filter ==> ~35mW.

  
  91   Fri Feb 14 18:02:37 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomTelescope for compressors and ThomXCVBGs telescope is done with w ~= 1mm. 

ThomX telescope is done with w
~= 2.3mm in x and y.		   
  92   Tue Feb 18 12:24:00 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomThomX Locked with CVBGsThomX has been locked with a new telescope
while using compression CVBGs.
Coupling is ~50-55% and lock is stable.		  tek00001.pngtek0002CH1.isftek0002CH2.isftek0002CH3.isftek0002CH4.isf 
  93   Wed Feb 19 17:21:28 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomPowerup with 2.5ps pulsesA power up has been performed on ThomX
until 65kW intracavity power. We didn't
see any modes but stored power was really		  report.PNGtek00004.png4A.PNG 
  100   Tue Jun 16 13:03:52 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomFinesse measurement after confinementAfter 3 months without human presence,
finesse has been measured 3 times with
average optimization: 		  sweep_parameters.PNGtek00007.pngtek0009CH1.isftek0010CH1.isftek0011CH1.isf 
  102   Tue Oct 27 13:13:50 2020 Loïc AmoudryFixedinfolasers and opticsOptical roomCoating reflectivityCoatings reflectivity curves and datas
for HR Saphir, HR Suprasil and HR ULE.		  6x 
  103   Fri Nov 6 14:23:16 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomBeam size and finesseMeasurement behind P4 (planar mirror)




  
  104   Fri Dec 18 16:10:04 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomOnefive ouput power and spectrumAfter turning on, one can see the 133.33MHz
Onefive output power for ~40min with OD2
filter (~/20). So the real output power is		  33MHz_output_power.PNG133_spectrum_full.PNG133_spectrum.PNG133_spectrum2.PNG 
  105   Fri Dec 18 17:06:53 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomOnefive ouput power and spectrum1)  Note: The OneFive laser used for
experimenting is the one for the  SBox

but, for now only this laser arrived		   
  154   Tue Aug 30 18:31:49 2022 Loïc AmoudryFixedreportlasers and opticsOptical roomAmplifier output power We checked the Dichroic mirror we have
: it is a DMSP1000 shortpass dichroic mirror
as specified in this post.		   
  43   Tue Jun 18 20:44:34 2019 Huan WangFixedinfolasers and opticsOptical roomtelescope for Koherastelescope of Koheras is removed, information
record here:

- distance between collimator edge		  2019.06.18_telescope_of_Koheras.jpg 
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