Nice. A little more disclosure highlighting the unique nature of the platform.  

Unlike more conventional top-entry PIN photodiodes, POET utilizes an evanescently-coupled twin waveguide structure with integrated spot-size converters that is compatible with its recently announced Optical Interposer Platform and is designed to operate in the wavelength range from 1310nm to 1550nm. 

Also looks like that detector can be used for an 8 lane 400G ROSA if required.