TRANSMISSION AND RECEPTION DEVICE, AND RELATED REMOTE-DETECTION SYSTEM AND TRANSMISSION AND RECEPTION METHOD

摘要

The present invention relates to a transmission and reception device (10) including: a single transmission channel (81) which conveys a linearly polarised optical transmission signal (13); a single feedback channel (82) which conveys a linearly polarised optical feedback signal (41), and which corresponds to a feedback of the optical transmission signal. The transmission and reception device (10) also includes: a controlled polarisation rotator (11), arranged in the transmission channel (81) and tracked by a polarisation separator (14) arranged so as to deflect the optical transmission signal (13), after passing through the polarisation rotator (11), in one predetermined direction (16) from among a plurality of directions according to the polarisation state thereof, each predetermined direction (16) defining a line of sight, and to deflect the optical feedback signal (41) from said predetermined direction toward the single feedback channel (82); and at least one waveplate (40) arranged on at least one line of sight. The invention also relates to a remote-detection system including such a transmission device, as well as to a method implemented in said device.