time domain

[joamatab]

How could we add time domain simulations to SAX?

similar to photontorch

[flaport]

I could probably implement something similar to photontorch, but personally i'd like a better implementation.

That said. I think it could be a good starting point. I'll give it a go one of the coming days/weeks when I find the time.

[joamatab]

Here is some ideas

https://github.com/joamatab/awesome_photonics

[joamatab]

in particular this repo has a time domain for electronics

https://github.com/TeledyneLeCroy/SignalIntegrity

[cdaunt]

Hi, Is there any progress on this?
SignalIntegrity is being used, in combination with a in-house photonic models to perform end to end electronic-photonic simulations. Unfortunately, SignalIntegrity supports just linear models for now so "memory" effects like what is possible with Caphe and PhotonTorch are not possible. I would like to move our in-house models to something more scalable like photontorch (which is not that active?) or SAX if it supported time domain so am interested in hearing if there is any progress.

[flaport]

Hi @ChrisDaunt1984 ,

Photontorch is basically in maintenance mode, I kind of like the SAX approach better (sparse by default, swappable backends, ...). It also integrates better with GDSFactory.

To be honest, I currently don't have the time to work on this, but I have some ideas on how to best implement a simple version (just like the photontorch one). I of course don't know your schedule but if you'd like to implement something like this for SAX, I can give you some guidance and I'd happily give you ownership over it 😉

Let me know if you're interested.

[cdaunt]

Hi @flaport

OK, if photontorch is in limbo, then probably best not to invest time into it. I looked at the implementation and I think I can follow what's going on (just).

Currently, our scipy/numpy solution works and integrates with SignalIntegrity. Pete will actually demo it at ECOC so I'm am not under immediate pressure, but I am kind of unsatisfied with the scalability so looking at other options.

Id like to say that I have the time and am interested but realistically, I won't have the time either until after November. Saying that, I am interested in working on this (or contributing where I can)

[flaport]

sounds good! I'll ping you in November 🙂

[joamatab]

Maybe we can port the time domain model from simphony into SAX.

@SkandanC
@sequoiap
@cjcarver
@AustP
@alexsludds

[jan-david-fischbach]

Hey @ChrisDaunt1984, @flaport, @joamatab,
is there currently work in progress on this, or is it still untouched? Do you see fit for me to help somehow?
Regards
JD

[cdaunt]

Hey @Jan-David-Black
I have not been able to touch it and will probably now not be able to get around to it in the short term (schedules have changed).
I am still interested in the availability though

[joamatab]

Now that we have schematic driven layout it would be great to interface with signalIntegrity, which is time domain capable
https://github.com/TeledyneLeCroy/SignalIntegrity

[flaport]

Hey @ChrisDaunt1984, @flaport, @joamatab, is there currently work in progress on this, or is it still untouched? Do you see fit for me to help somehow? Regards JD

Hi @Jan-David-Black ,

This issue has not been touched. Feel free to pick it up!

[joamatab]

Time domain models for memory container blocks

JAX may have a better way to do this

[SkandanC]

Hello @joamatab,

There is a project in the CamachoLab where they are trying to write Simphony in JAX, and add time domain stuff