A method for analyzing the coupling of 3-D tapered rib waveguides with Fibers | Zendy

Jingwei Liu | Zendy; Shaowu Chen | Zendy; Yu Jinzhong | Zendy

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A method for analyzing the coupling of 3-D tapered rib waveguides with Fibers

Author(s) -

Jingwei Liu,

Shaowu Chen,

Yu Jinzhong

Publication year - 2005

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.54.6

Subject(s) - waveguide , optics , beam propagation method , coupling (piping) , materials science , radiation mode , silicon on insulator , optical fiber , single mode optical fiber , silicon , physics , optoelectronics , refractive index , metallurgy

The fields in 3-dimensional tapered waveguides are unstable compared with the fields in the straight waveguides. In the case of waveguide-to-fiber coupling and fiber-to-waveguide coupling, a sequence of short straight waveguides has been modeled to approximate the 3-dimensional tapered waveguide; and the unstable incident and reflected fields, as well as their derivatives, were determined by the beam propagation method(BPM). Then free space radiation mode(FSRM) was employed to calculate the reflected and transmitted powers. Analysis results of the coupling of fiber with silicon-on-insulator(SOI) tapered rib waveguides showed the feasibility of the method.

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