Optical coherent detector and demodulator

Details Optical coherent detector and demodulator Optical coherent detector and demodulator

H - Electricity

04

B

325/1, 329/15

H04B 10/148 (2006.01) G01J 9/04 (2006.01) G02F 2/00 (2006.01)

Patent

CA 1206203

ABSTRACT OF THE DISCLOSURE The disclosure herein describes an incident which is subdivided into two components having orthogonal polarization states and these two components form the object of a coherent detection. For this purpose, a local oscillator supplies a local wave, which is itself divided into two components having orthogonal polarization states, which supply two detection - demodulation channels. The demodulation signals of these two channels are combined, and in particular added, and the resulting signal makes it possible to recover the information independently of the polarization state of the incident wave. The invention applies to optical transmission.

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