Coupling Characteristics of Butt-Joined Single-Mode Slab Waveguide and Tapered Slab Waveguide with Nonlinear Cladding

Kazuo ONO  Tamotsu SAKAI  Hisashi OSAWA  Yoshihiro OKAMOTO  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E74-A   No.12   pp.3949-3951
Publication Date: 1991/12/25
Online ISSN: 
Print ISSN: 0916-8508
Type of Manuscript: Special Section LETTER (Special Issue on the 1991 IEICE Fall Conference)
Category: Electromagnetic Theory

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Power dependent coupling efficiency for a butt-joined configuration using nonlinear cladding is analyzed by the beam propagation method. This configuration is not so sensitive to the angular misalignment as well as the offset between coupled waveguides on condition that the input power is appropriate to assure the propagation of spatial soliton.