Oz4m2 is one of the treasures on this forum. I have been spending time having a closer look at DenseLight's quantum well intermixing process which was inspired by one of oz4m2's posts.
I really think it is going to be a very key part of what POET applies in future generations of the POET platform. It dramatically simplifies and allows for greater control of ION implants which is very key to both the optical side and very likely the electronic side as well.
POET does not need it for the 850nm optical engine as it is being designed today as per Suresh but I think it will find its way into the front end process of everything POET does in the future. It is a pretty neat approach to precisely alter band gap where it is needed.