>>509826116No. Itโs a targeting method to establish tracking. Most modern weapons systems use some form of it, lasers, radar, sonar, etc.
>>509825571countermeasures. Thatโs mostly what was happening during the Cold War, and at a slower pace since. Figuring out ways to establish firing solutions on targets, and figuring out ways to detect those methods and counter them. In the case of lasers itโs an array of sensors on the craft that will detect the laser and track it to its source. This tells the pilots they are being targeted, and the source of it, so they can avoid the actual attack by missiles or whatever. Basic physics, anything that can tell you the location of something can also tell that thing your location.