Corning Incorporated

Tyco Electronics Subsea Communications LLC

Subcom, LLC

Lutfur Rahman

George Edward Berkey

Venkata Adiseshaiah Bhagavatula

Dmitriy Kovsh

Hongsheng Wang

Ruomei Mu

Vaidyanathan Srikant

Hong Sheng Wang

A system and method for fault recovery in a branched optical network. In response to a fault, power distribution in channels on recovering digital line segments is adjusted to minimize a merit function based on one or more system parameters.

Fault recovery in branched optical networks

Disclosed is a dispersion controlled optical waveguide fiber, and telecommunication systems using such a waveguide fiber, in which the end to end total dispersion and total dispersion slope is controlled by varying the refractive index profile along the fiber length. The waveguide fiber includes length portions each of which is characterized by total dispersion having a magnitude and sign and total dispersion slope having a magnitude and sign. The magnitudes and signs of total dispersion and total dispersion slope of respective length portions are chosen to provide for the optical waveguide fiber a desired end to end total dispersion and total dispersion slope. An advantage is achieved in the present invention by designing the refractive index profiles of the length portions to have total dispersion and total dispersion slope of opposite sign.

Controlled dispersion optical fiber

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Ocean, NJ, United States of America

Lutfur Rahman