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Optical Engineering

4×4 wavelength-reconfigurable photonic switch based on thermally tuned silicon microring resonators
Author(s): Han-Yong Ng; Michael R. Wang; Daqun Li; Xuan Wang; Jose Antonio Martinez; Roberto R. Panepucci; Kachesh M. Pathak
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Paper Abstract

Microring resonators (MRs) are important photonic devices for large-port-count photonic circuits owing to their micrometer-scale device sizes. We describe the implementation of a 4×4 wavelength-reconfigurable photonic switch consisting of eight tunable MRs fabricated on a less expensive material platform: silicon on insulator. Wavelength reconfiguration is achieved through independent thermo-optic tuning of MRs with localized Nichrome microheaters fabricated on the same silicon-on-insulator substrate. A free spectral range of 18 nm and a 3-dB linewidth of 0.1 nm were observed for the fabricated MRs with a diameter of approximately 10 μm. The switch device shows negligible channel crosstalk (<0.01 nm) and moderate switching response time (<1 ms). The switch can potentially be scaled up to benefit the development of large-scale integrated photonics.

Paper Details

Date Published: 1 April 2008
PDF: 8 pages
Opt. Eng. 47(4) 044601 doi: 10.1117/1.2909662
Published in: Optical Engineering Volume 47, Issue 4
Show Author Affiliations
Han-Yong Ng, Univ. of Miami (United States)
Michael R. Wang, Univ. of Miami (United States)
Daqun Li, New Span Opto-Technology Inc. (United States)
Xuan Wang, Florida International Univ. (United States)
Jose Antonio Martinez, Florida International Univ. (United States)
Roberto R. Panepucci, Florida International Univ. (United States)
Kachesh M. Pathak, U.S. Army Space and Missile Defense Command (United States)

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