The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 07, 2006
Filed:
Dec. 05, 2003
Chien-hsiung Chiu, Baoshan, TW;
Chun-sung Chien, Sinjhuang, TW;
Song-fure Lin, Hsinchu, TW;
Pin-sung Wang, Hsinchu, TW;
Chien-Hsiung Chiu, Baoshan, TW;
Chun-Sung Chien, Sinjhuang, TW;
Song-Fure Lin, Hsinchu, TW;
Pin-Sung Wang, Hsinchu, TW;
FOCI Fiber Optic Communications, Inc., Hsinchu, TW;
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.