Noise-immune laser receiver — transmitters with the quantum sensitivity limit

We consider the operation principles of noise-immune near-IR receiver — transmitters with the quantum sensitivity limit, in which active quantum filters based on iodine photodissociation quantum amplifiers and iodine lasers are used. The possible applications of these devices in laser location, laser space communication, for the search for signals from extraterrestrial civilisations and sending signals to extraterrestrial civilisations are discussed.