Topology optimization of waveguide bends with wide, flat bandwidthin air-bridge-type photonic crystal slabs

We employed the topology optimization (TO) method to improve the transmission bandwidth of waveguide bends in air-bridge-type, two-dimensional photonic crystal slabs. We experimentally confirmed that bend loss at longer wavelengths in the vicinity of the band edge was suppressed by using TO. The opt...

Full description

Saved in:
Bibliographic Details
Published in:Journal of applied physics 2007-06, Vol.101 (11), p.113108-113108-6
Main Authors: Watanabe, Yoshinori, Ikeda, Naoki, Sugimoto, Yoshimasa, Takata, Yoshiaki, Kitagawa, Yoshinori, Mizutani, Akio, Ozaki, Nobuhiko, Asakawa, Kiyoshi
Format: Article
Language:
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We employed the topology optimization (TO) method to improve the transmission bandwidth of waveguide bends in air-bridge-type, two-dimensional photonic crystal slabs. We experimentally confirmed that bend loss at longer wavelengths in the vicinity of the band edge was suppressed by using TO. The optimized bends showed good performance, comparable to that of straight waveguides.
ISSN:0021-8979
1089-7550
DOI:10.1063/1.2739317