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1995•Microwave and Optical Technology LettersRequires access

Beam‐propagation‐method analysis of a three‐waveguide nonlinear directional coupler

Kiyotoshi Yasumoto, Hiroshi Maeda, Kouichi Nakamura

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Abstract

Abstract The power‐transfer characteristics of a three‐waveguide nonlinear directional coupler (NLDC) are investigated with the beam‐propagation method based on the finite‐difference scheme. The coupler consists of two outer linear waveguides and a center waveguide with a nonlinear Kerrlike medium. It is shown that the three‐waveguide NLDC is useful for constructing a power‐dependent power divider, a power‐dependent power combiner, and an optical logic element. © 1995 John wiley & Sons, Inc.

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Abstract The power‐transfer characteristics of a three‐waveguide nonlinear directional coupler (NLDC) are investigated with the beam‐propagation method based on the finite‐difference scheme. The coupler consists of two outer linear waveguides and a center waveguide with a nonlinear Kerrlike medium. It is shown that the three‐waveguide NLDC is useful for constructing a power‐dependent power divider, a power‐dependent power combiner, and an optical logic element. © 1995 John wiley & Sons, Inc.

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Available abstract

Abstract The power‐transfer characteristics of a three‐waveguide nonlinear directional coupler (NLDC) are investigated with the beam‐propagation method based on the finite‐difference scheme. The coupler consists of two outer linear waveguides and a center waveguide with a nonlinear Kerrlike medium. It is shown that the three‐waveguide NLDC is useful for constructing a power‐dependent power divider, a power‐dependent power combiner, and an optical logic element. © 1995 John wiley & Sons, Inc.

Key concepts: Power dividers and directional couplers, Beam propagation method, Waveguide, Optics, Hybrid coupler, Power (physics), Beam (structure), Maximum power transfer theorem

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