Optical communication system and method using two kinds of light

Details Optical communication system and method using two kinds of light Optical communication system and method using two kinds of light

1997-05-19

1998-04-21

Bacares, Rafael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359192, 372 27, H04B 1000

Patent

active

057424187

ABSTRACT:
In an optical communication system or method, two light signals having different wavelengths and different polarization directions are generated using a common modulation signal on a transmitter side, and the light signals transmitted over a light transmission line are wavelength-discriminated by a wavelength filtering unit disposed on a receiver side to demodulate a signal. The filtering unit may include a plurality of filters which are arranged so that the transmitted light signals of different wavelengths are respectively selected out thereby and a difference signal between outputs of the filters is produced to demodulate the signal.

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