Method and apparatus for compactly coupling an optical fiber...

Details Method and apparatus for compactly coupling an optical fiber... Method and apparatus for compactly coupling an optical fiber...

2005-08-16

2005-08-16

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

With optical coupler

Particular coupling structure

C385S050000, C385S088000

Reexamination Certificate

active

06931180

ABSTRACT:
In accordance with the invention, an optical fiber is coupled to a planar waveguide through 1) a series of planar waveguide segments of enlarged cross section and 2) a segment of vertically tapered cross section. The combination of spaced segments and tapered segments provide efficient coupling over a much shorter length than required for conventional adiabatic coupling.

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patent: 6293688 (2001-09-01), Deacon
Y. Shani, et al. “Efficient Coupling of a Semiconductor Laser to an Optical Fiber by Means of a Tapered Waveguide on Silicon” American Institute of Physics; Sep. 26, 1989; pp. 2389-2391.
A. Hahapatra and J.M. Connors “Thermal Tapering of Ion-Exchanged Channel Guides in Glass” Optical Society of America; Feb. 1988; vol. 13, No. 2; pp. 169-171.
T.L. Koch, et al. “Tapered Waveguide InGaAs/InGaAsP Multiple-Quantum-Well Lasers” Feb. 1990 IEEE; vol. 2, No. 2; pp. 88-90.
Z. Weissman and A. Hardy “Modes of Periodically Segmented Waveguides” Nov. 1993 Journal of Lightwave Technology, vol. 11, No. 11; pp. 1831-1838.

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