The following graph shows Google Trends for the search terms "POET Technologies", "VCSEL", "Wavetek", and "Epiworks":

As you can see, POET, VCSEL, and Wavetek are roughly level. But guess what? The current halt makes the blue POET line peak, so there's indeed increased visibility. Interestingly the green Epiworks line also shows an uptick – no idea whether that's coincidence or causality.

Here's the Google Trends query, just in case you want to try it yourself.