R&D (FilterCavity)
MarcEisenmann - 10:46, Monday 01 July 2024 (3630)
cc pll investigation

[Logan, Marc]

we started by replacing the PD battery by a spare one.

Then, by tuning the mode-matching of each fiber.

after some tweaking we have CC input 0.49mW and transmission 0.144mW and ML input 4.06mW and transmission 0.69 mW.

The ML transmission was highly fluctuating (maybe du to ceiling light?).

We could also recover the lock but as seen from the muxout 'digital lock detect'it is not stable at all...