Exactly right, TM's presentation and Poet's updated website spells out things very clearly:

A platform that unlocks tremendous market potential.

Wafer-scale Photonic Integration

• Optical Engines – receive and transmit
• Light Bars – multiple aligned lasers
• Receivers – multiple detectors
• Passive Assemblies – filters and waveguides

Multiple Application Spaces:

Data Center Market

• Optical Engines for Datacom 100G, 400G and 800G Transceivers

Telecommunications, including 5G networks

• Optical Engines for Telecom (PON ONU, PON OLT and CPRI B/H)

Internet of Things (IOT) and Industrial Sensing

• Photodetectors and photodetector arrays

Automotive LIDAR

• CWDM Laser Modules

On-Board Optics

• Photonics-integrated ASICs (switches, graphics generators, microprocessors)

https://poet-technologies.com/applications.html