Lasers Speed Space Communications

A "higher-tech" version of old nautical use "blinker-lamps" for secure, line-of-sight, point-to-point, communications.

The only difficulty, of sort, is the "initial" detection & LOCK-ON between the lasar transmitter and the far, far, far away lasar receiver because even the *slightest* off-beam angle(s) will cause the lasar to "miss" the intended receiving 'target'.

They'll need a two-stage approach, use an initial "broad-beam" signal to establish first detection (ie: telephone "ring") and LOCK-ON (handshake) and, then, switch to "narrow-beam" signal for actual data transmission.