Theoretical and experimental investigation of broadband cascaded four-wave mixing in high-Q microspheres
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Imad H Agha1, Yoshitomo Okawachi, Alexander L Gaeta
1School of Applied and Engineering Physics, Cornell University, Ithaca, NY 14853, USA. iha2@cornell.edu
Optics Express
|September 3, 2009
Abstract:
We analyze the process of cascaded four-wave mixing in a high-Q microcavity and show that under conditions of suitable cavity-mode dispersion, broadband frequency combs can be generated. We experimentally demonstrate broadband, cascaded four-wave mixing parametric oscillation in the anomalous group-velocity dispersion regime of a high-Q silica microsphere with an overall bandwidth greater than 200 nm.
