Bidirectional dispersion compensation system

Details Bidirectional dispersion compensation system Bidirectional dispersion compensation system

1998-05-27

2000-12-05

Pascal, Leslie

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359130, 359173, 385 37, H04B 1018

Patent

active

061574775

ABSTRACT:
A bidirectional chromatic dispersion system includes an optical circulator that includes four ports. A first port is coupled to a first optical transmission medium and a third port is coupled to the second optical transmission medium. A first dispersion compensating grating is coupled to a second port, and a second dispersion compensating grating is coupled to a fourth port. The first dispersion compensating grating is operative to reflect wavelengths in a first optical band, and the second dispersion compensating grating is operative to reflect wavelengths in a second optical band. The first dispersion compensating grating is substantially transparent to wavelengths in the second optical band, and the second dispersion compensating grating is substantially transparent to wavelengths in the first optical band. The first dispersion compensating grating is coupled to the second port of the optical circulator through the second dispersion compensating grating and a dispersion compensating fiber. Similarly, the second dispersion compensating grating is coupled to the fourth port through the first dispersion compensating grating and the dispersion compensating grating.

REFERENCES:
patent: 5404413 (1995-04-01), Delavaux
patent: 5701188 (1997-12-01), Shigematsu et al.
patent: 5742416 (1998-04-01), Mizrahi et al.
patent: 5943151 (1999-08-01), Grasso et al.

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