For those interested, FR product line seems to be the holy grail so to speak. The transmit side can't come soon enough, come on Suresh. 

https://poet-technologies.medium.com/how-hybrid-integration-builds-on-silicon-photonics-foundation-8db98538ff6d

The Optical Interposer: A Bold New Solution

The dream solution would be a hybrid model that involves the development of low-cost, small-footprint products with higher performance than conventional options. And pushing those solutions out through FR (far reach) devices that can go as long as 10 kilometers (6.5 miles). Such innovation would drive the next generation of products that would create faster, more reliable data communications.