Ofs Fitel, LLC

Gregory M Bubel

Yaowen Li

David J Kudelko

Paul S Westbrook

William R Holland

Man Fei Yan

Matthew Julius Andrejco

In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGDhaving an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.

Tunable dispersion compensator with minimum differential group delay

A twin core fiber for sensor applications is developed. It is particularly useful in de-coupling the strain and temperature and thus obtaining both measurement parameters at the same time and location. It is also particularly useful for measuring the temperature in a high humidity environment. The twin core fiber has two cores and each of the cores having a different dopant regime. Also, each of the cores includes a grating having substantially the same grating period.

Multi-core fiber grating sensor

In a method and system for providing dispersion compensation in an optical system, there is coupled into the optical system at least one pathway into which there is connected a tunable chirped fiber Bragg grating, each such grating providing a respective tunable amount of dispersion. At least one respective DGD element is connected into the respective pathway for each such grating. The set of all such respective DGD elements in a given pathway introduces a bias differential group delay DGD() having an absolute value that, for at least one tuning value of the grating, is substantially equal to differential group delay introduced by the grating.

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Middletown, NJ, United States of America

Gregory M Bubel