Aiming to become the global leader in chip-scale photonic solutions by deploying Optical Interposer technology to enable the seamless integration of electronics and photonics for a broad range of vertical market applications

Free
Message: confused

I don't understand this new milestone that must be achieved, the BCFET optimization.   We were led to believe Poet had completed 2 of the 3 needed components for the "optical engine", required to produce an AOC.   The last one was the VCSEL, which was going through optimization runs.   Now apparently, optimization was achieved?   But this new target, never mentioned before has yet to be optimized -- the BCFET (whatever that is).

I wonder why achieving the VCSEL optimization didn't warrant a seperate news release or at least some kind of public acknowledgement, like the detector portion?   Unless optimization is still on-going?

But now it seems the target has been moved forward and changed.  

 

Here's a happy statment from not so long ago regarding the VCSEL - no mention of BCFET.  

“Two of the three critical individual pieces of an integrated opto-electronic product are now in place and undergoing their respective optimization cycles,” said Dr. Subhash Deshmukh, POET’s Chief Operating Officer.  “As reported earlier, we have encountered delays in completing the VCSEL milestone.  The VCSEL continues to be our focus, even while we simultaneously make progress on other aspects of the technology.  The characterization that has been done to date on the VCSEL points to required optimization of a few layers in a very complex and unique epitaxial stack and fine tuning of the resonant cavity mode. The new and optimized epitaxial structure is expected to be delivered to the foundry for processing over the next couple of months,” said Dr. Deshmukh.  “We have not uncovered any fundamental show-stoppers.  We are charting new territory here and as pointed out at the recent town hall meeting and at the annual meeting of shareholders, technical issues are commonly encountered throughout the R&D process and we are systematically understanding and addressing these issues.”

POET has already demonstrated electrical functionality of the VCSEL with desired thyristor characteristics and demonstrated lasing modes through optical pumping of the VCSEL cavity (in other words light emission was detected on the epitaxial wafer surface).  However in order to enable electrical pumping of the VCSEL, the team has had to redesign some aspects of the epitaxial stack. VCSEL functionality was previously verified in a lab setting and the functionality of that original laser has been retested and reconfirmed.

“POET management is delighted to report this new achievement and reaffirms their confidence in the roadmap and progress in the lab to fab to commercialization of monolithic opto-electronic products. We will provide the next update around the earnings call, which we intend to schedule for early Q4 2016,” said Dr. Suresh Venkatesan.

Maybe someone can comment on the above and add some clarity?

Share
New Message
Please login to post a reply