The only way he would know is if POET spoke with him. If you know that we did, then we know that he knows.
Contrary to popular belief, POET is still not on everyone's radar. Having a high market cap doesn't guarantee that you will be a household name. A guy like Lazaridis can sit on his can and wait for the information to be brought to him.
Also note that according to what we have in the public domain, POET's quantum capabilities are in the embryonic stage. We still have to give birth to a PET CMOS replacement.
POET comes next as the market will slowly integrate analog, digital and optical circuits into one chip to reduce cost, reduce power consumption and to increase computing/memory/etc.
After that (or hopefully in parallel), POET will be at the heart of a quantum computer.