A few excerpts from the SEDAR document (My bold).  All things we've seen before, but reminders of the potential value both Denselight and BB bring to the POET table. It's obvious now why they were brought in, let's not overlook their importance.

"In addition to monolithic integration, we are developing solutions based on a novel “hybrid” integration approach, which combines Indium Phosphide (InP)-based photonics chips and dielectric waveguide devices on a silicon base into a single package. This approach enables the replacement of high-cost optical components, such as mirrors and lenses, with embedded dielectric devices, dramatically lowering the cost of potential solutions aimed at the “medium-reach” segment of the data communications market (i.e., 500m–10 kilometers). Our ability to address hybrid integration is a direct result of our acquisitions, in 2016, of DenseLight Semiconductor Pte. Ltd. (“DenseLight”) based in Singapore, and BB Photonics, Inc. based in New Jersey."

"By incorporating BB Photonics designs for waveguide multiplexers and filters, the packaging costs of our DenseLight modules can be reduced by up to 90% from current levels. This combination of DenseLight and BB Photonics under the POET umbrella offers an unprecedented opportunity for the Company to address the market for sensing products with novel low-cost solutions. In addition, we believe it will allow POET to pursue the large and growing market for 100G and potentially 400G transceiver products, with both integrated transceivers as well as active and passive components."

"At the core of this development are the active laser components supplied by DenseLight and the novel passive components based on BB Photonics technology. BB Photonics has designed a multi-layer, athermal waveguide and a spot size converter that are incorporated directly into the InP epitaxial stack. Our objective is to place several integrated and discrete components on a silicon optical bench that does not require active optical alignment, which would substantially reduce the cost of the device by eliminating the need for lenses and mirrors. We intend to offer both components to transceiver makers, as well as to develop our own 100G, scalable transceiver optical engine."

As we know, all sales of current and newly introduced components are all through Denselight and its existing supply chain infrastructure.  This same infrastructure is required for future POET sales.  Hopefully, current and new (non-POET) sales will help us stretch our finances, while we await full POET commercialization:

"In addition to building transceivers engines, we believe the Company has the opportunity to sell individual components to other suppliers of optical transceivers, including receiver optical sub- assemblies (ROSA), modulators, multiplexers, demultiplexers and single-chip local area network (LAN) wavelength division multiplexing (WDM) lasers."

Also liked this:

"In protecting its intellectual property, the Company has ensured that no supplier of services has access to all technical know-how and certain sensitive elements of the production process are maintained in-house."