Silicon optic based wavelength division multiplexing device

Details Silicon optic based wavelength division multiplexing device Silicon optic based wavelength division multiplexing device

2006-03-07

2006-03-07

Palmer, Phan T. H. (Department: 2874)

Optical waveguides

With optical coupler

Plural

C385S033000, C385S034000, C385S065000

Reexamination Certificate

active

07010190

ABSTRACT:
The present invention discloses an optic based wavelength division multiplexer device made by a micro lithography and etching process, utilizing the special crystal lattice structure of a silicon wafer. The device comprises a silicon substrate with grooves, an input fiber optic of incoming port with its front lens, a fiber optic of pass port with its front lens, a fiber optic of reflect port with its front lens, and a thin-film filter. The fiber optics, lenses, and the thin-film filter are inserted into grooves to complete the fiber-to-fiber alignment and coupling. The present invention provides both functions of wavelength multiplexing and wavelength demultiplexing. The present invention also has the characteristics of automatic alignment and passive alignment.

REFERENCES:
patent: 6219470 (2001-04-01), Tu

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