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pyrpl-fpga / pyrpl

pyrpl turns your RedPitaya into a powerful DSP device, especially suitable as a lockbox in quantum optics experiments.
http://lneuhaus.github.io/pyrpl/
MIT License
139 stars 110 forks source link

Temporarily Unlocking Phase-Locked Laser for Chirping via External Signal #516

Open ultracoldmol opened 5 months ago

ultracoldmol commented 5 months ago

I am working on optical phase-locking a laser to a frequency comb using an IQ and PID module as described in the paper. I need to temporarily unlock the phase lock in response to an external signal, allowing me to chirp the laser, and then reestablish the phase lock. How can I achieve this?

michaelcroquette commented 5 months ago

I think this is the same question as #501 and unfortunately it is not implemented. You could have a python routine checking the level of a signal but you would have quite big and random delay due to ethernet communications.

broeckel commented 2 months ago

@michaelcroquette Do you think the delay would decrease if one would execute the python routine on the RedPitaya itself without using a Ethernet connection?

michaelcroquette commented 2 months ago

It should but I have never tried it.