Cliff,
If they had no customers or just little companies like Fibretop and just stated they had products that nobody seems to care about like 100g where everyone plays, sure it could be vaporware. In fact, that's what the LWLG board debates everyday.
As for Poet, Have you seen the customer/supplier list? Adva, where we threaded a very small needle for them, Luxshare who makes iPhone 14 pro as well as other apple products, CAI which received 60 million from some reputable investment outfits, Lumentum which is tweeting about Poet's success with their lasers, MSA standards bodies mentioning Poet is doing something that advances the tech in the right direction. How about the illustrative pipeline which has all the big players in it as well as the mentions in major research reports people have to pay thousands for. The products they will be showcasing are state of the art fully multiplexed and done at wafer scale with a roadmap all the way to 6.4T
Vaporware? Na, these guys are the real deal.