Coherent Optics: It's Not Just for Metro Cores Anymore!
(Room B405)
22 Oct 18
3:30 PM
-
4:45 PM
Tracks:
Wireline Networks: 10G and Beyond
Coherent optics are already well known by the people who work in metro core and backbone optical networks -- and the access network is within the crosshairs. This session packs a powerful three-punch of relevant information about the advance and benefits of coherent optics, from CableLabs, Cox, and Nokia Bell Labs. It kicks off with an update on the CableLabs point-to-point Coherent Optics specification, from Steve Jia, including a method for simultaneous, bi-directional transmissions over a single fiber and single wavelength -- to essentially double fiber capacity, via a coherent, optics-based network. Next, Nokia Bell Labs’ Patrick Iannone gives (Claude) Shannon a (figurative) tap on the shoulder, suggesting that coherent optical communications can increase aggregate data rates to within a fraction of a dB of Shannon’s Limit for optical fiber. (What!) Strap in for a deep dive into top-shelf tech-talk, from Gaussian amplitude distribution to “probabilistic constellation shaping.” Bringing it all home is Cox’s Harj Ghuman, with details about his research into system performance over 60 kilometers, supporting 100G coherent, 10G DWDM and PON traffic. That’s with adjacent optical wavelengths, on the same fiber, using an Optical Communications Module Link Extender (OCML) and a mux/demux.