Anomalous localization modes in Bragg-grating based on high index-difference waveguide

Tomohiro Kita; Koji Uchijima; Hirohito Yamada

doi:10.1117/12.2003724

14 March 2013 Anomalous localization modes in Bragg-grating based on high index-difference waveguide

Tomohiro Kita, Koji Uchijima, Hirohito Yamada

Proceedings Volume 8629, Silicon Photonics VIII; 86291C (2013) https://doi.org/10.1117/12.2003724
Event: SPIE OPTO, 2013, San Francisco, California, United States

Abstract

We observed photonic band-gap disappearance on Bragg-grating wavelength filters with Si photonic-wire waveguides, and studied the physical mechanism with theoretical and numerical analyses. This is a unique phenomenon observed in channel waveguides with very high index-contrast between the waveguide core and cladding materials. The photonic band-gap disappearance was observed in structures where two different optical field distributions of standing wave degenerate.

Citation Download Citation

Tomohiro Kita, Koji Uchijima, and Hirohito Yamada "Anomalous localization modes in Bragg-grating based on high index-difference waveguide", Proc. SPIE 8629, Silicon Photonics VIII, 86291C (14 March 2013); https://doi.org/10.1117/12.2003724

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