NDLI: A design consideration for optical power dividers composed of three coupled waveguides

Content Provider	IEEE Xplore Digital Library
Author	Hotta, M. Geshiro, M. Arashiba, T. Sawa, S.
Copyright Year	1963
Abstract	In the present paper, we propose a design consideration for optical power dividers utilizing the distributed coupling among three adjacent slab waveguides. This type of power divider can easily be fabricated by means of the process of ion-exchange. However, being large in scale is a serious problem. We clarify that the size of the device can be remarkably reduced by introducing nonuniformly distributed coupling which is caused by step-like gap variations between the waveguides. In order to obtain wide separations at the output end, we also introduce the low-loss bent structure which is designed by the method of suppression of the optical wave undulation along the waveguide. The numerical results show that low-loss wide separations of optical waves are possible and over a 35% reduction in device length can be achieved. The numerical analysis is based on the two-dimensional finite difference method.<>
Sponsorship	IEEE Microwave Theory and Techniques Society
Starting Page	1167
Ending Page	1171
Page Count	5
File Size	616772
File Format	PDF
ISSN	00189480
Volume Number	42
Issue Number	7
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1994-07-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Optical design Power dividers Optical waveguides Optical coupling Slabs Waveguide discontinuities Design methodology Optical devices Numerical analysis Finite difference methods
Content Type	Text
Resource Type	Article
Subject	Condensed Matter Physics Electrical and Electronic Engineering Radiation

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