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Proceedings Paper

Microresonator-enhanced four-wave mixing
Author(s): Kuncheng Zheng; Vishnupriya Govindan; Steve Blair
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Paper Abstract

Four-wave mixing (FWM) is an important mechanism for frequency conversion and fast optical switching in all-optical communication networks. In this paper, we demonstrate that microring resonator filters can generate significant conversion efficiency with sub-millimeter physical size. Microresonator based filters not only have high finesse, which can enhance nonlinear efficiency, but also have periodic passbands, which satisfy the phase matching condition of FWM automatically. Non-degenerate FWM in direct-coupled ring resonator (DCRR) filters and ring-based Mach-Zehnder interferometers (RMZI) is studied in this paper. Both structures provide greater than 10% conversion efficiency (defined by the converted intensity divided by the initial signal intensity) with low values of n2*Ip, where n2 is the nonlinear refractive index and Ip is the initial pump intensity; the DCRR allows greater frequency conversion bandwidth within the filter passband. We also compare the efficiency of the ring-based filters and a straight waveguide with the same effective length. We thus demonstrate that ring-based filters are effective devices for on-chip wavelength conversion for WDM network.

Paper Details

Date Published: 10 February 2006
PDF: 11 pages
Proc. SPIE 6103, Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications V, 61030Q (10 February 2006); doi: 10.1117/12.647188
Show Author Affiliations
Kuncheng Zheng, Univ. of Utah (United States)
Vishnupriya Govindan, Univ. of Utah (United States)
Steve Blair, Univ. of Utah (United States)

Published in SPIE Proceedings Vol. 6103:
Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications V
Peter E. Powers, Editor(s)

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