Nonlinear enhancement in photonic crystal waveguides with spot-size converter

M. Shinkawa; N. Ishikura; Y. Hama; T. Baba

doi:10.1117/12.876076

10 February 2011 Nonlinear enhancement in photonic crystal waveguides with spot-size converter

M. Shinkawa, N. Ishikura, Y. Hama, T. Baba

Proceedings Volume 7949, Advances in Slow and Fast Light IV; 794902 (2011) https://doi.org/10.1117/12.876076
Event: SPIE OPTO, 2011, San Francisco, California, United States

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.

Citation Download Citation

M. Shinkawa, N. Ishikura, Y. Hama, and T. Baba "Nonlinear enhancement in photonic crystal waveguides with spot-size converter", Proc. SPIE 7949, Advances in Slow and Fast Light IV, 794902 (10 February 2011); https://doi.org/10.1117/12.876076

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