Fiber-Waveguide Coupler Having a Linear-Tapered Form

Yuanmin CAI  Tetsuya MIZUMOTO  Yoshiyuki NAITO  

IEICE TRANSACTIONS (1976-1990)   Vol.E71   No.10   pp.931-933
Publication Date: 1988/10/25
Online ISSN: 
Print ISSN: 0000-0000
Type of Manuscript: Special Section LETTER (Special Issue: Papers from 1988 Autumn Convention IEICE)
Category: Opto-Electronics

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In integrated optics, it is very important to provide efficient optical coupling between fibers and waveguide devices. In this letter, we propose a fiber-waveguide coupler, whose guide width varies in propagation direction, and show its better coupling behavior than an uniform coupler.