Lightwave Logic Inc (LWLG)

[gatesoft55]

Looking at a slide from Lebby presentation. Apparently, can do 400Gbps using 4x50Gbps with PAM-4 modulator. Further can do 800Gbps using 4x100Gbps with PAM-4.

And looking at the most recent PR touting 50Gbps RWG modulator.

This important achievement will allow users to utilize arrays of 4 x 50Gbps polymer modulators using PAM-4 encoding to access 400Gbps data rate systems.

And Pulse-Amplitude Modulation (PAM-4) is an encoding scheme that can double the amount of data that can be transmitted.

https://globenewswire.com/news-release/2017/09/19/1124803/0/en/Lightwave-Logic-Achieves-Polymer-Based-Mach-Zehnder-Modulators-with-50GHz-Operation-Opening-the-Door-for-400Gbps-Modulation-in-Fiber-Optic-Communications.html

I was thinking LWLG was going to use 50x8 but apparently I am very wrong. So I think the 4x100 referenced in the article is not needed to get 400. The PAM-4 allows the 50Gbps x 4 to act the equivalent of 4x100.

GATES.