Optical multiplexing

Details Optical multiplexing Optical multiplexing

1991-04-11

1992-05-12

Gonzalez, Frank

Optical waveguides

Polarization without modulation

385 13, 359122, 359123, G02B 626

Patent

active

051134586

ABSTRACT:
An optical multiplexing system has a source of depolarized radiation at one end of a non-birefringent optical fiber that extends to a decoding interferometer. Sensors in series along the fiber induce birefringence so that the radiation is superimposed onto two polarization modes producing two output wave trains from each sensor with different time separations. The interferometer measures the time separations of the wave trains to identify the sensor and its output.

REFERENCES:
patent: 3991318 (1976-11-01), Duguay
patent: 4367040 (1983-01-01), Goto
patent: 4749254 (1988-06-01), Seaver
patent: 4818064 (1989-04-01), Youngquist et al.
patent: 4882716 (1989-11-01), Lefevre et al.
J. Phys E: Sci Instrum 20 (1987) p. 960.

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