> 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 p

> 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-coherent-100g/d/d-id/689914 http://www.lightreading.com/optical/dwdm/infinera-unleashes-...