Sharply bent hollow optical waveguides formed by an omni-directional reflector

Hua Kung Chiu, Chih Ming Hsu, Shih Shou Lo, Chii Chang Chen, Chien Chieh Lee

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this work, we demonstrate theoretically and experimentally the air core bent optical waveguide composed of omni-directional reflectors on a silicon substrate. Amorphous silicon and silicon oxide are used for high index-contrast Bragg reflectors. The transmission efficiency of power for the bent optical waveguide with various bending angles of 1°-90° is calculated by the two-dimensional finite-difference time-domain method and the three-dimensional beam propagation method. The sample is measured using the end-butt method. The device exhibits a lower polarization dependent loss at the operation wavelength of 1550 nm.

Original languageEnglish
Article number195106
JournalJournal of Physics D: Applied Physics
Issue number19
StatePublished - 2009


Dive into the research topics of 'Sharply bent hollow optical waveguides formed by an omni-directional reflector'. Together they form a unique fingerprint.

Cite this