Rib waveguide optimized for low loss coupling to optical fibers

Details Rib waveguide optimized for low loss coupling to optical fibers Rib waveguide optimized for low loss coupling to optical fibers

1991-05-24

1992-04-28

Ullah, Akm

Optical waveguides

Planar optical waveguide

Thin film optical waveguide

385132, G02B 600, G02B 614

Patent

active

051094649

ABSTRACT:
A raised-rib waveguide provides a low-loss coupling to a conventional single-mode optical fiber propagating light of a wavelength (.lambda.). An exemplary embodiment of the waveguide is disclosed for a wavelength of 0.85 .mu.m. In order to identify the values of the structural and compositional parameters of the raised-rib waveguide, a method employing a computer is used to identify a set of parameters that optimize the efficiency of the coupling of the waveguide to an optical fiber while maintaining the waveguide's ability to propagate a selected mode.

REFERENCES:
patent: 3899235 (1975-08-01), Arnaud et al.
patent: 3978426 (1976-08-01), Logan et al.
patent: 4376138 (1983-03-01), Alferness et al.
patent: 4904039 (1990-02-01), Soref
patent: 4976506 (1990-12-01), Pavlath

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