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ID	Date	Author	Status	Type	Category	Location	Title	Text
68	Wed Oct 9 10:08:24 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Improvement holder amplifier fiber	We've added a clamp in the 3rd stage to prevent the pump fiber from moving and tilting (it was tilting to the left).
69	Wed Oct 9 10:10:01 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Free Spectral Range (FSR)	FSR is 33.347 MHz @1e-8 mbar
70	Wed Oct 9 10:16:24 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Fiber injection and onefive output power	Fiber injection is finished with the new ThomX stretching CVBG in double pass (+50% injection power compared to K-BOX CVBG in
71	Wed Oct 9 11:41:11 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Onefive spectrum and CVBG spectrum	The Onefive spectrum has shifted a little bit to lower lambda. It's still enough for the experiment (3mW injection of ampli
72	Thu Oct 10 17:51:26 2019	Ronic Chiche	Fixed	issue	lasers and optics \| detectors and electronics	Optical room	First Lock with 2nd satge of amplifier : Finesse issue ?	1st lock today with the second stage of the amplifier. ~ 300mW of injected power (but which
73	Thu Oct 10 18:03:10 2019	Ronic Chiche	Fixed	issue	mechanics	Optical room	First Lock with 2nd satge of amplifier : Motor issue ?	Global locking almost clean : tranmission and reflection are quite noiseless except the peaks at every 500ms.
74	Fri Oct 11 18:42:32 2019	Ronic Chiche	Fixed	issue	lasers and optics \| detectors and electronics	Optical room	First Lock with 2nd satge of amplifier : Finesse issue ?	First of all, we used and optical spectrometer to determine which proportion of pump and signal is in the injected beam.
75	Fri Oct 11 18:49:00 2019	Ronic Chiche	Fixed	info	detectors and electronics	Optical room	New locking scheme	Before, the locking scheme was to produce an error signal with the PDH box, send its output to the electronic amplifier box and
76	Tue Oct 22 09:10:45 2019	Loīc Amoudry	Fixed	report	lasers and optics	Optical room	First mode degeneracy on ThomX	Yesterday, we've observed the first degeneracy on ThomX cavity at ~115 kW stored. The shape of the stored power on the oscilloscope
77	Wed Nov 6 16:11:12 2019	Loīc Amoudry	Fixed	report	lasers and optics	Optical room	Spherical 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.
78	Wed Nov 13 14:44:56 2019	Loīc Amoudry	Fixed	report	lasers and optics	Optical room	Amplifier 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
79	Wed Nov 13 15:05:18 2019	Loīc Amoudry	Fixed	report	lasers and optics	Optical room	Amplifier output power
80	Thu Nov 21 11:37:13 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Onefive Origami 33MHz specs	Beam Size Onefive added
81	Fri Nov 22 17:56:56 2019	Ronic Chiche	Fixed	issue	lasers and optics \| detectors and electronics	Optical room	30Hz noise issue	since some days, we observe the cavity is difficult to lock and a strange 30Hz noise has appeared on the PZT signal which normally
82	Tue Nov 26 16:11:52 2019	Ronic Chiche	Fixed	issue	mechanics	Optical room	First Lock with 2nd satge of amplifier : Motor issue ?	The 500 ms noise disapeared. We had to disable the "power save" mode of the smaract translation stage. AND turn OFF
83	Tue Nov 26 16:21:27 2019	Loīc Amoudry	Fixed	issue	vacuum	Optical room	Pneumatic valves	The pneumatic valves are now plugged on the university air network. The air valve is fully openned for
84	Tue Nov 26 16:35:39 2019	Ronic Chiche	Fixed	issue	lasers and optics \| detectors and electronics	Optical room	30Hz noise issue	The 30 Hz noise issue has been solved ! It came from translation stage of P1 and/or P4.
85	Wed Nov 27 13:53:57 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Onefive output power	The pump voltage has been increased few days ago when looking for a modlock of the laser.
86	Thu Nov 28 10:40:29 2019	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	CVBG reference and Eric Cormier calculation	The Stretcher is the "D 24-02-II", it must be used in double path before the amplifier injection.
87	Tue Feb 4 14:39:56 2020	Loīc Amoudry	Fixed	info	lasers and optics	Optical room	Onefive output power	Onefive output power measured today. 3.52 mW with OD1 filter ==> ~35mW.

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