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  Status of commissioning, report also here plots are reports., Page 1 of 24  Not logged in ELOG logo
ID Date Author Status Typedown Category Location Title Text Attachments
  5   Wed Oct 3 11:28:46 2018 Ronic ChicheFixedreportmechanics | cablingOptical roomtest des vérins ISP 20mm et 6mmAprès avoir utilisé la chaine
: driver ISP - cable ISP DB9 - Feedthrough
enceinte DB9-DB9 - cable perlé DB9-SUB-C
  
  6   Fri Oct 5 10:17:30 2018 Ronic ChicheFixedreportmechanics | cablingOptical roomtest des vérins ISP 20mm et 6mm 




  
  12   Wed Jan 16 14:54:14 2019 Loïc AmoudryFixedreportlasers and optics | utilitiesOptical roomCleaning outside IP cavityFrom 7th january to 11th january.

 
 Avant_nettoyage.jpgApres_une_semaine_nettoyage_lingettes_et_brosseadents.jpgSans_UV_traces_scotch_nettoyees_apres_baking.jpg 
  13   Fri Feb 1 13:20:47 2019 Loïc AmoudryFixedreportutilitiesOptical roomEnd of cleaning, plastic fixed on cavity08/02/19 - End of the cleaning process.  covered_by_plastic.pngcovered_by_plastic2.png 
  14   Fri Feb 1 13:39:21 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomMirrors checked with binocular microscope29/01/19 - ThomX mirrors have also been
checked with binocular microscope. They shown
the same spots as S-BOX mirrors. 
 41_THOMX_SphericalZoom1x.jpg49_THOMX_M1ReflectiveZoom4x.jpg 
  15   Fri Feb 1 14:10:25 2019 Loïc AmoudryFixedreportlasers and opticsOtherMirrors sent to LMA30/01/19 - As LMA people came, we discussed
about the spots on ThomX mirrors which should
be clean. As mentionned in "SBOX commissioning",
  
  16   Thu Feb 14 18:20:52 2019 Loïc AmoudryFixedreportmechanics | lasers and opticsOptical roomBasic alignment & alignment motors check14/02/19: The 4 motors but Mby control
works. Mby motor home does not bring
it to its "middle" position
  
  18   Tue Mar 19 16:35:32 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomBeam size and finesseFSR initiale : 33.34 MHz (S3 = -825000
et S4 = -825000)

Beam size initiale : wx=2.05mm
  
  20   Fri Mar 22 17:53:10 2019 Loïc AmoudryFixedreportlasers and optics | vacuumOptical roomCavity at atm pressureDry air injected into the cavity.

Lock has been proceeded without
any trouble. ~~4000 finesse. Considered to
 finessealair.isf 
  21   Tue Mar 26 18:26:32 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomCheck of mirrors and coating directionsDirection of HR face of P1 and P4 have
been checked, there was no problem. The mirrors
are in the good direction and the coating
 ThomX_P4.jpg 
  22   Tue Mar 26 18:32:40 2019 Loïc AmoudryFixedreportmechanics | lasers and optics | cablingOptical roomWires in laser pathThere was some ceramic wires close to the
beem path right before P4. We moved them
away (we can imagine they could move again
 before.jpgafter_wire_displaced.jpg 
  25   Tue Apr 2 17:59:18 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomFinesse after removing wires19/04/01: We removed the wires from the
beam path in the cavity. Finesse stayed at
3400. FSR: 33.342 MHz.
  
  26   Tue Apr 2 18:03:31 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomTransmission of the mirrorsWe openned the cavity, removed S2 and measured
trans of P1 and same for S2.

Pin ~= 3.91 mW
  
  28   Thu Apr 4 09:42:12 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomTransmission of the mirrorsAfter verification, transmission of P1
correspond to ~150ppm.

The 1337ppm come from a beam leakage.
  
  29   Fri Apr 5 11:18:47 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomTransmission of the mirrorsP1 transmission out of the mount (means
angle of the mirror is not the real angle):

Pin = 3.2 mW
  
  30   Fri Apr 5 11:28:39 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomFinesse with P1 SUPRASILP1 SUPRASIL has been installed instead
of P1 Sapphire. It has been cleaned 3 times
on each face with wipe+isopropanol before
 190404_mode_size_with_P1_SUPRASIL.PNG190404_mode_fit_with_P1_SUPRASIL.PNGtek00000.pngtek00002.png 
  31   Mon Apr 8 10:18:31 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomFinesse after 2daysFinesse measured this morning after P1
SUPRASIL being into the cavity for two
days. In order to check if it's getting
  
  32   Mon Apr 8 11:55:40 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomP4 cleaned and finesse measurementP4 cleaned with isopropanol.

Finesse measured afterward: ~=13
000 (clear increase)
  
  33   Wed Apr 10 13:11:46 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomMirror's cleaning and finesseSummary of what have been cleaned
the last week:

P1 with isopropanol, finesse 11000
  
  36   Tue May 21 17:44:46 2019 Loïc AmoudryFixedreportlasers and opticsOptical roomNew Suprasil mirror from LMA14/05/19:

New Suprasil mirror received. It
will replace the S-BOX suprasil mirror on
  
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