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ID	Date	Author	Status	Type	Category	Location	Title	Text
48	Thu Jul 4 18:30:39 2019	Loīc Amoudry	Fixed	report	lasers and optics	Optical room	2nd stage output power validated	Onefive output power : 28mW Power before fiber injection : 7.8mW
49	Mon Jul 29 17:15:35 2019	Loīc Amoudry	Fixed	info	mechanics \| lasers and optics	Optical room	Spin coater air supply removed and front panel changed	Spin coater firstly needed vacuum and air supply. The air supply being useless for our experiments, it has been disabled.
50	Fri Aug 30 09:44:56 2019	Ronic Chiche	Fixed	report	lasers and optics	Optical room	Finesse measurement after mirror cleaning using the spin coater	Last Finesse measurement in air : ~ 17 000 the 20th of may (see logbook) 28th and 29th of august, we cleanned,
51	Fri Aug 30 17:46:15 2019	Ronic Chiche	Fixed	report	lasers and optics	Optical room	Finesse measurement after mirror cleaning using the spin coater	today I cleaned S3 with isopropanol and then with pure water on spin coater. Finesse is only 10 700.(coupling 50%
52	Fri Aug 30 17:52:41 2019	Ronic Chiche	Fixed	issue	mechanics \| detectors and electronics	Optical room	Motor issue	Today, Axis 9 (Z-axis of P1) has blocked the software which drives all the motors. impossible to bypass the problem.
53	Tue Sep 3 17:51:04 2019	Ronic Chiche	Fixed	issue	mechanics \| lasers and optics \| vacuum	Optical room	Vessel cleanliness	looking in the vessel of the FP cavity using a UV lamp shows a lot of dust... more dust than outside the cavity !!!
54	Tue Sep 3 18:04:03 2019	Ronic Chiche	Fixed	report	lasers and optics	Optical room	Finesse measurement after mirror cleaning using the spin coater	Following finesse measurements (start @10700): Clean P1 with SC (water) + isoprop (wipe) finesse @15000
55	Tue Sep 3 18:06:29 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Mirrors sent to LMA	Mirrors have been sent today to LMA for cleaning and maybe annealing (recuit). 3 ULE of ThomX and the fused silicate for injection
56	Fri Sep 6 14:48:14 2019	Loīc Amoudry	Fixed	report	mechanics \| vacuum	Optical room	Primary vacuum to check dust	The cavity has been cleaned then put under primary vacuum (primary pump without vacuum flow control). Dusts presence was checked
57	Fri Sep 6 14:59:00 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	LMA cleaning technique	Christophe MICHEL told us more precise informations about spin coater cleaning. They always clean with pur water
58	Thu Sep 12 16:19:26 2019	Loīc Amoudry	Fixed	report	mechanics \| lasers and optics	Optical room	Cavity dust source check	Several experiments have been done in order to check the potential source of dust in the ThomX cavity. For each step, we look
59	Wed Sep 25 15:49:28 2019	Ronic Chiche	Fixed	issue	mechanics \| detectors and electronics	Optical room	Motor issue	Today again, same problem with axis 9 blocking the controlling software during the mirror alignment procedure.
60	Fri Sep 27 10:43:17 2019	Loīc Amoudry	Fixed	report	lasers and optics	Optical room	New Suprasil mirror from LMA	19/09/2019 : email from Chrisophe Michel about AR coating of LMA mirrors after reading that Ta2O5 layers can be damaged in vacuum
61	Fri Sep 27 16:17:36 2019	Ronic Chiche	Fixed	info	lasers and optics	Optical room	Finesse measurement	After mirrors were going back from LMA for cleaning and thermal anealing, they have been installed in FP cavity for Finesse measurement.
62	Mon Sep 30 11:20:48 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Diffusion ULE spherical mirror (S3) vs Fused Silicate injection planar mirror (P1)	Observation made with IR Beam Viewer: The observation of P1 and S3 simultaneously while locking shows much higher diffusion
63	Mon Sep 30 11:30:32 2019	Ronic Chiche	Fixed	info	lasers and optics	Optical room	Finesse measurement	To complete these observations: Finesse has been measured on thursday, right after cleaning the cavity
64	Thu Oct 3 13:49:58 2019	Loīc Amoudry	Fixed	info	mechanics	Optical room	Pneumatic valves	Frederic and Manu from vacuum group came this morning to fix again the pneumatic valves which had a leak again.
65	Thu Oct 3 13:53:44 2019	Loīc Amoudry	Fixed	report	vacuum	Optical room	Cavity under vacuum	The cavity is right now at 6.5e-8 mbar (turbo pumps on for 1 night and ionic pumps for 3h), primary pumps and turbo pumps are
66	Thu Oct 3 14:00:13 2019	Loīc Amoudry	Fixed	issue	cabling	Optical room	Electrical trouble (disjunction)	The circuit breaker on ThomX cavity drops @1.5-1.8kW when we turn on 1/2nd stage of the amplifier or 3rd stage of the
67	Thu Oct 3 18:00:10 2019	Loīc Amoudry	Fixed	report	lasers and optics	Optical room	ThomX amplifier M2	The ThomX M2 has been measured between 1.5-1.6 for x and y

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