Thanks for the article, Sulasailor! It mentions a photo detector to convert optical into electrical signals.

But it doesn't say anything about the opposite, i.e. turning electrical signals back into optical ones using a photo emitter. And it doesn't say anything about optical processing with graphene.

I don't know much about graphene, so I would not rule out that this is in principle possible, too. However, I cannot see it anywhere near.

Remember how long it took Geoffrey Taylor to get around all the difficulties with GaAs and reach the point where POET is today! Remember how many companies did R&D with GaAs and gave up after years with little success! I believe it will take graphene quite a couple of resp. many years to get where POET is today. And then we don't know – at least I don't know – whether graphen will be faster or less power consuming than GaAs and offer any advantage here.

Oh, and in my previous post I forgot to mention a very important aspect of the POET platform: It is compatible with existing silicon chip manufactoring equipment and can in fact be integrated with traditional Si chips. Will that ever be possible with graphen?

Since the chips industry desparately needs a solution now and not in years or decades, I am very positive for POET (and PET).

Would be great if people with more technical insight would share their views!

Andrea ("Powered by POET")