Some interesting points made in this video presentation, I believe it was in the spring of 2015 that it was suggested that Finisar may be involved with Poet. The speaker talks of "an alliance" called SWDM.

About SWDM Technology

Shortwave data center connections are usually powered by VCSELs operating near a wavelength of 850 nm. Shortwave wavelength division multiplexing (SWDM) is a technology that uses multiple VCSELs at different wavelengths around that 850 nm region to generate individual data streams, all multiplexed onto a single fiber pair. This is the same concept that is used in the Coarse Wavelength Division Multiplexing (CWDM) standards used in the longwave 1310 nm region operating over single mode fiber, except that SWDM is generated by VCSELs , which are a lower cost technology.

In an SWDM module, multiple SWDM VCSELs produce optical signals that are multiplexed onto a single fiber. All of the VCSELs and the optical multiplexing occur within the optical module. On the receive side of the module, the wavelengths are demultiplexed and then converted to parallel electrical signals.

Speaker:
Christian Urricariet, Finisar Corporation

The optical interconnect ecosystem is going through unprecedented growth and innovation as new players, new business models and new technologies converge. One of the trends is the growing importance and evolving landscape of fiber optic technologies enabling new architectures and enhanced levels of performance for both data centers and service providers. High bandwidth, increased port density and lower power dissipation are now key requirements for Ethernet router, switch and server I/O. The talk covers the latest industry trends in optical interconnects, including: • Significant increase in 25G and 100G port density. • Extension of optical links beyond the Standards. • Reutilization of 10G fiber plant for 40G/100G. • Moving beyond 100G towards 200G and 400G. - See more at: http://nanog.org/meetings/nanog66/age...