"further improvements can be made by the team in parallel"

Maybe that is what the Poet Team is doing and maybe that is what was meant by the following statement from the November 28, 2016 news release.

"In terms of progress on the POET technology, we continue to maintain a strong focus on the development and refinement of the integrated opto-electronics engine, which includes the integrated detector. As a direct result of the capital raise, we are now able to pursue parallel development paths for our VCSEL design and validation and have taken meaningful steps to accelerate our cycles of learning. Furthermore, we are making selective investments in capital equipment as well as other key capabilities to give us greater control over some of the most time-sensitive aspects the technology development process".