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Proceedings Paper

Photonic crystal Fano resonances for realizing optical switches, lasers, and non-reciprocal elements
Author(s): Dagmawi A. Bekele; Yi Yu; Hao Hu; Yunhong Ding; Aurimas Sakanas; Luisa Ottaviano; Elizaveta Semenova; Leif K. Oxenløwe; Kresten Yvind; Jesper Mork
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Paper Abstract

We present our work on photonic crystal membrane devices exploiting Fano resonance between a line-defect waveguide and a side coupled nanocavity. Experimental demonstration of fast and compact all-optical switches for wavelength-conversion is reported. It is shown how the use of an asymmetric structure in combination with cavity-enhanced nonlinearity can be used to realize non-reciprocal transmission at ultra-low power and with large bandwidth. A novel type of laser structure, denoted a Fano laser, is discussed in which one of the mirrors is based on a Fano resonance. Finally, the design, fabrication and characterization of grating couplers for efficient light coupling in and out of the indium phosphide photonic crystal platform is discussed.

Paper Details

Date Published: 24 August 2017
PDF: 7 pages
Proc. SPIE 10345, Active Photonic Platforms IX, 103451V (24 August 2017); doi: 10.1117/12.2273801
Show Author Affiliations
Dagmawi A. Bekele, Technical Univ of Denmark (Denmark)
Yi Yu, Technical Univ. of Denmark (Denmark)
Hao Hu, Technical Univ. of Denmark (Denmark)
Yunhong Ding, Technical Univ. of Denmark (Denmark)
Aurimas Sakanas, Technical Univ. of Denmark (Denmark)
Luisa Ottaviano, Technical Univ. of Denmark (Denmark)
Elizaveta Semenova, Technical Univ. of Denmark (Denmark)
Leif K. Oxenløwe, Technical Univ. of Denmark (Denmark)
Kresten Yvind, Technical Univ. of Denmark (Denmark)
Jesper Mork, Technical Univ. of Denmark (Denmark)

Published in SPIE Proceedings Vol. 10345:
Active Photonic Platforms IX
Ganapathi S. Subramania; Stavroula Foteinopoulou, Editor(s)

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