From Nov 12

The orders include sales and development contracts with a value in excess of $3-million (U.S.) ($3.9-million (Canadian)) to purchase current device prototypes, to develop and provide increasingly integrated optical engine components or to systematically address specific customer integration requirements under paid development programs.

From the conference call

We have already aligned with our customers on their production volumes and pricing requirements, so that once we successfully demonstrate the platform capabilities and it is qualified, we expect to receive production volume orders for Optical Interposer-based components and subassemblies for inclusion in customers’ products beginning in the second half of 2019.

A few words about the qualification process. All new devices or components in data and telecommunications must demonstrate adherence to both customer specifications and industry standards. Parts of the qualification process are done by both the supplier and by its individual customers. The time period over which device testing occurs varies, but often extends three to six months or longer depending on the device or the subassembly, the qualification test required and the particular customer.

We have estimated that the qualification of active devices or light producing or detecting subassemblies such as our lasers, modulators and detectors on the Interposer platform should average approximately six months. However, with any particular device, tests or customer the qualification period may be shorter or longer. Some testing continues even after devices are shipped, so that data on device reliability can be measured and potentially used as a selling point with other customers. 

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The 100G optical engines are being built by POET as their products. I expect that the current device prototype that is high lighted above is likely the 100G ROE. The Pin Photodetector associated with that device as pointed out by Oz have been qualified so  complete optical engine with waveguides are likely in qualification at this  time. But what is encouraging is that progress appears to be very good on the new optical engine design-ins which I believe are associated with this  reference:

Now that POET is prototyping portions of the Optical Interposer and preparing to qualify the devices with major global customers, as announced in mid-November 2018, the Company is considering two important objectives in order to achieve its expected growth: