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by jpmattia 4327 days ago
> See for example:

Thanks for the link. I confess I'm a little amazed that Infinera is the basis for running 100G coherent single wavelengths. That's great progress. (Edit- See below)

> Essentially the issue with upgrading over the wet plant is basically the presence of nonlinearities on the fiber

Yes, and there's great incentive to utilize legacy fiber if possible.

(BTW I managed to screw up my comment above when I edited. I had written: Usually the undersea guys are a generation behind, partly because of the need to send a destroyer-looking ship out for any repairs.)

> BTW, I also worked at BBN

Hello! and hope all is well, whoever you are. :)

Edit: The infinera 500G PIC in the PR from Telstra is running its basic bitstreams at 25G and muxing them up - http://www.lightreading.com/optical/dwdm/infinera-unleashes-...

1 comments

Yes. It's a 100G service though. Infinera runs on 25G spacing so at 25G dual wave dual polarization is 100G in the same spectral efficiency as single wave.