While POET is continuing to develop the DML solution - they expect significant barrier to entry because no one yet in the world has made dmls work or is using dmls at these speeds

So if EMLs become scarce due to market demand POET will continue to have DMLs as an alternative that may allow for market transition.

We begin to understand the diversity of the Optical Interposer. DMLs, EMLs, CW lasers or VCSELs pick your poison.