Let's take a look at what POET disclosed at the OFC and compare it to one of our biggest competitors Intel.

Open the Intel’s video at 33:38
you can see Intel’s CPO 1.6Tbps TX Optical engine design (Co-packaged optics)

Here POET’s 1.6Tbps TX Optical engine design

Utilizing key features of the POET Optical Interposer, this 16-channel light source incorporates 2 x 40nm Gain Lasers with 8 stripes at 400GHz spacing (with gratings incorporated into the Optical Interposer), and 4 Quad Modulators into a waveguide-embedded multiplexer.

Important : POET states « Compact Replaceable footprint »