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Proceedings Paper

Proposal of low-loss Y-branch module with wide branch angle
Author(s): Hiroaki Kurokawa; Hiroyuki Kawashima; Kunihiko Asama; Hiroyuki Kasai
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Paper Abstract

Recently, optical waveguides implementation on the substrate has been developed due to the requirement for large capacity and high-speed transmission. Considering that an optical circuit on the substrate must be assembled in a limited space, the integration of the circuit is one of the most important issues for the design of the optical circuits. In optical circuits, a Y-branch waveguide is a basic element of circuits and the length of the Y-branch waveguide depends on its branch angle. To achieve the high density integration of optical circuits, a wide angle Y-branch module, which is a small module, is highly desired. In this paper, we propose a new Y-branch waveguide using reflection at the inclined side-wall of the waveguide. The results of the numerical analysis show the efficiency of the proposed Y-branch waveguide, namely low-los and wide branching, in optical waveguide. Moreover, this paper also discuss that the proposed model is tolerable to the fabrication error comparing to the conventional Y-branch waveguide.

Paper Details

Date Published: 24 May 2000
PDF: 9 pages
Proc. SPIE 4089, Optics in Computing 2000, (24 May 2000); doi: 10.1117/12.386776
Show Author Affiliations
Hiroaki Kurokawa, Tokyo Univ. of Technology (Japan)
Hiroyuki Kawashima, Tokyo Univ. of Technology (Japan)
Kunihiko Asama, Tokyo Univ. of Technology (Japan)
Hiroyuki Kasai, Tokyo Univ. of Technology (Japan)

Published in SPIE Proceedings Vol. 4089:
Optics in Computing 2000
Roger A. Lessard; Tigran V. Galstian, Editor(s)

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