Transition between two single mode optical waveguides

Details Transition between two single mode optical waveguides Transition between two single mode optical waveguides

1981-04-01

1983-11-15

Lee, John D.

G02B 5172

Patent

active

044152272

ABSTRACT:
A connection piece connected for propagating light between two single mode optical waveguides having respectively different cross sections, the piece being in the form of a transition from one cross section to the other. The waveguides and the piece are composed of a transparent core member forming a light propagating path from one waveguide to the other via the transition, and a cladding material surrounding the core member. The core member part of the piece is formed to vary gradually and continuously in cross section in the direction of light propagation, and the piece has a length which is two to four times the free space wavelength of the light to be propagated divided by the difference between the index of refraction of the core member and the index of refraction of the cladding material.

REFERENCES:
patent: 3779628 (1973-12-01), Kapron et al.
patent: 4060308 (1977-11-01), Barnoski et al.
Wagh, "Coupling Efficiency Between Light Pipes of Different Dimensions," Applied Optics, vol. 15, No. 11, Nov. 1976, pp. 2840-2843.

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