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Proceedings Paper

Nonlinear enhancement in photonic crystal waveguides with spot-size converter
Author(s): M. Shinkawa; N. Ishikura; Y. Hama; T. Baba
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Paper Abstract

We evaluated the nonlinear enhancement in slow-light photonic crystal waveguides. The devices butt-joined to Si wire waveguides were fabricated on SOI substrate using CMOS-compatible process. Integrating spot size converter to the device allows high input power and clear enhancement. The coupling loss between lensed fiber and the wire was 3 - 4 dB. We observed two-photon absorption, self-phase modulation and four-wave mixing in the low power regime of less than 1 W, which is assisted by low-dispersion slow light. Such slow light can be exploited for compact functional components such as optical limiters and wavelength converters.

Paper Details

Date Published: 10 February 2011
PDF: 8 pages
Proc. SPIE 7949, Advances in Slow and Fast Light IV, 794902 (10 February 2011); doi: 10.1117/12.876076
Show Author Affiliations
M. Shinkawa, Yokohama National Univ. (Japan)
CREST (Japan)
N. Ishikura, Yokohama National Univ. (Japan)
CREST (Japan)
Y. Hama, Yokohama National Univ. (Japan)
T. Baba, Yokohama National Univ. (Japan)
CREST (Japan)

Published in SPIE Proceedings Vol. 7949:
Advances in Slow and Fast Light IV
Selim M. Shahriar; Philip R. Hemmer, Editor(s)

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