People should understand that as the inventor of the Optical Interposer Suresh knew how important that waveguide technology would become (that is why they own the trademark). Those patents based on that filtering capability, the ability for efficient coupling and the ability to run electrical and optical extremely close to each other was the starting point. Do you people remember how Suresh introduced this to us retail investors? He used a leaking garden hose coupling as an analogy (living CA that is understandable). POET's garden hose couplings do not leak even in a simple butt couple configuration. That has everything to do with the dual waveguide structures. The level of control that has been refined and supported by patents have continued to build on those capabilities. 

Don't go looking for the boogeyman. Stay focused on why POET is being selected by major industry players as a go to platform.