Bidirectional photonic integrated circuit-based subsystem

Details Bidirectional photonic integrated circuit-based subsystem Bidirectional photonic integrated circuit-based subsystem

2008-04-01

2008-04-01

Sanghavi, Hemang (Department: 2874)

Optical waveguides

Integrated optical circuit

C385S024000, C385S049000, C385S088000, C385S089000

Reexamination Certificate

active

07352923

ABSTRACT:
A reconfigurable intelligent subsystem may include a bidirectional photonic integrated circuit. The bidirectional photonic integrated circuit may include a distributed reflector (DR) laser or a distributed feedback laser (DFB) that emits light of a first wavelength, and a longitudinal waveguide portion that transmits light of a second wavelength, while attenuating light of the first wavelength. The bidirectional photonic integrated circuit may be coupled to a single mode optical fiber to provide two-way optical communication between a service provider (“headend”) and a subscriber.

REFERENCES:
patent: 5031188 (1991-07-01), Koch et al.
patent: 5875274 (1999-02-01), Stein
patent: 6148015 (2000-11-01), Jacquet et al.
patent: 6437891 (2002-08-01), Chandrasekhar et al.
patent: 7062114 (2006-06-01), Webjorn et al.

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