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  Status of commissioning, report also here plots are reports., Page 6 of 13  Not logged in ELOG logo
ID Date Author Status Type Categorydown Location Title Text Attachments
  46   Thu Jan 9 16:54:05 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomMicroscope and cleaning of SBOX mirrorsThe mirrors went in the cavity the 28th
of november (We did several power up
to 30kW stored and only one to 40kW then
 resume_nettoyage_apres_sejour_dans_K-BOX_et_montee_en_puissance.PNG 
  47   Fri Jan 10 18:51:23 2020 Ronic ChicheFixedreportlasers and opticsOptical roomanalysis of stored and reflected powerthe 10th of January, we increased the power
of the amplifier to study the cavity transmitted
and reflected power signals.
 6x 
  48   Fri Jan 24 16:16:24 2020 Ronic ChicheFixedreportlasers and opticsOptical roomanalysis of stored and reflected powerA chart which summarizes
the data we have or we can estimate.
 Losses.pdfM1_losses_vs_Pcav.png 
  49   Fri Jan 24 17:52:14 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomAFM analysis of M1AFM has been proceeded on M1 and M2.

The pdf shows the first images
taken with the PLIC room Leica microscope
 200115_AFM_miroirs.pdf 
  50   Fri Jan 24 17:56:11 2020 Loïc AmoudryFixedinfolasers and opticsOptical roomAFM analysis of M2We had enough time to proceed a quick scan
of M2 which has also a hole but not centered
on the mirror.
 M2.PNG 
  51   Fri Jan 24 17:58:45 2020 Loïc AmoudryFixedinfolasers and opticsOptical roomCFBG removed from ThomX CELIA amplifierThe CFBG has been removed successfully
and the amplifier is closed now.

The soldering machine had a calibration
  
  52   Wed Jan 29 19:00:02 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomGlow discharge cleaner on SBOX mirrorsThe glow discharge cleaner has been tested
on the SBOX mirrors.

I've put them 1 by 1. Each
 glow.PNG 
  53   Wed Jan 29 19:04:38 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomSBOX mirrors cleanedToday, SBOX mirrors have been cleaned with
spin coater on HR face and isoprop on back
face. They show similar spots as before.
  
  54   Wed Feb 5 14:47:16 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomSBOX mirrors cleanedYesterday, after installation and alignment
of mirrors and cavity, the Finesse has been
measured with cavity at air pressure, with
  
  55   Wed Feb 5 16:46:01 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomSBOX mirrors cleanedToday we put the cavity to vacuum (~ 0.1
mBar) and we measured again the Finesse with
Koheras and modulation technique.
  
  56   Thu Feb 6 11:01:08 2020 Ronic ChicheFixedreportlasers and opticsOptical roomanalysis of stored and reflected powerwith this Finesse around 22-23k, the technique
comparing TRANSMISSION and REFLECTION signals
doesn't work, even in taking into account
 untitled.png 
  57   Thu Feb 6 16:58:57 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomPower up to 48kW crater effect againAs we said, after glow discharge and spin
coater we recovered a low power finesse ~23000
(aligning away from the M1 crater).
 3A_136mWtrans.png4A_126mWtrans.pngmode_strange.png 
  60   Wed Dec 16 12:36:37 2020 Loïc AmoudryFixedreportlasers and opticsOptical roomMirror's cleaning and microscope imagingOn 10th of december 2020 we cleaned the
SBOX mirrors and took microscope images
(the name of the images indicates what they
 14x 
  61   Tue Jan 5 12:38:04 2021 Manar AmerFixedreportlasers and opticsOptical roomTransmission Measurements for the Mirrors.
Thursday 10 December 2020:  
First Test Measurement - Inside Box

 The
transmission ( T ) for the mirrors of SBOX
 6x 
  62   Tue Jan 12 10:44:57 2021 Ronic ChicheFixedissuelasers and opticsOptical roomOrigami SN2440 133MHz laser power measurment... and failurewe received from NKT the Origami SN2440
133MHz oscillator from repair on 2020/12/17
and we measured the power trend from
 133mhzpower.PNG133mhz_power_zoom.png 
  63   Thu Jun 10 17:55:15 2021 Ronic ChicheFixedinfolasers and opticsOptical roomOrigami SN2440 133MHz laser testsToday, we received the Origami SN2440 133MHz
oscillator from repair (NKT mentioned a defective
wire inside the controller....)
 IMG_20210610_161502.jpgspectre_133MHz.PNGScreen_0015.png 
  76   Wed Apr 20 19:05:37 2022 Manar AmerFixedreportlasers and opticsOptical roomKBox Alignment Starting with the alignment of the KBox
using CW Koheras.

The size of the CW output from
 7x 
  77   Mon Apr 25 17:28:29 2022 Manar AmerFixedreportlasers and opticsOptical roomSBox Alignment SBox alignment, using CW laser Koheras
power 1 mW


 6x 
  78   Mon Apr 25 17:58:01 2022 Manar AmerFixedreportlasers and opticsOptical roomSBox Alignment After pointers and Advice from Aurélien,

improvement of the beam alignment
through M1 and M2 irises was done.
 Ma1_Ma2_Horizontal_Position_Optimized.pngMa1_Ma2_Vertical_Position_Optimized.pngAfter_M1_diaphram_1m_Saturated_Beam_Optimized.jpgAfter_M2_M1_diaphram_Saturated_Beam_Optimized.jpgAfter_M2_M1_diaphram_Beam_Optimized.jpg 
  79   Mon Apr 25 18:02:09 2022 Manar AmerFixedreportlasers and opticsOptical roomSBox Alignment Remember to update the position of the
reference Irises tomorrow !!!!

  
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