COMMUNICATION LINE USING ANNULAR LASER EMISSION

摘要

FIELD: laser equipment, in particular, design of multiple-channel transmission line for power and information. SUBSTANCE: device has tube gas laser which annular beam is sent to ring parabolic receiving mirror. In addition mirror reflects back-lighting laser beam. Transmitted information is encoded by means of modulation of frequency (color) of beam of transmitting laser. Back-lighting frequency is equal to non-modulated frequency of transmitting laser. This results in interference pattern which intensity is altered with different frequency of modulated beam and back-lighting beam. Interference pattern is received at receiver due to concentration of beam by means of receiving mirror. Alternating frequency of blinking is detected by receiver and decoded. Channel provides information transmission rate of 10-100 Mbps and more. EFFECT: power of information transmitter and size of receiving antenna are decreased by several orders of magnitude or effective distance of transmission is increased by 1-2 orders of magnitude. 5 cl, 1 tbl, 3 dwgi