Optical coupling structure

Details Optical coupling structure Optical coupling structure

G - Physics

02

B

G02B 6/42 (2006.01) G02B 6/30 (2006.01) G02B 6/12 (2006.01)

Patent

CA 2369191

An object of this invention is to improve coupling efficiency of a silica optical waveguide having a high relative refractive index difference and a single mode optical fiber. A silica optical waveguide (l0) consists of a single mode optical waveguide, and its core (12) is originally a rectangle. A width of the core (12) of the silica optical waveguide (10) is tapered at a predetermined length part (16) connecting to an optical fiber (20). A thickness of the core (12) in the tapered part (16) is constant.

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