Patent ID: 6901220

Claim:
A site-to-site atmospheric laser communication system for full duplex wideband data transmission, comprising a laser communication transceiver having: an electro-optical receiver for converting incoming laser light into first digital optical data; a fiber-optic transmitter for converting the first-digital electronic data into first digital optical data and transmitting the first digital optical data to a computer network; a fiber-optic receiver for receiving second digital optical data from a computer network and converting the digital optical data into second digital electronic data; a static electro-optical transmitter having static laser diode means for converting the second digital electronic data to outgoing laser light to be transmitted site-to-site and at a high speed; a window element having transparent resistive coating as means for controlling temperature of said window element by applying electrical current to said transparent resistive coating; a static baffle assembly for receiving the incoming laser light directly onto the electro-optical receiver, without an intermediate field stop and re-imaging relay optics to reject off-axis light sources; and thermoelectric cooler means for actively cooling said laser diode means, wherein the incoming laser light contains wideband digital optical data received through the atmosphere by said electro-optical receiver, and said outgoing laser light containing wideband digital optical data is generated by said diode-means after being triggered by at least one inputted signal from said fiber-optic transmitter.