How to transmit data underwater?

AWOL:

How would the satellite laser

I think both would be plural.

If you're a member of the IEEE, the paper is available online; I read a digest in Jane's.
There are other articles online from later in the 1980s.

Not a member. But it just doesn't sound like a workable system even if green or other color high power laser can penetrate water to some workable depth, one still would need to know where the target was located for a narrow beam to reach them? And a sub on nuclear patrol duty never purposely gives it's present location to anyone.