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Proceedings Paper

Resonance-spacing tuning over whole free spectral range in a single microring resonator
Author(s): Ge Gao; Shuai Yuan; Danping Li; Jinsong Xia
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Paper Abstract

In this paper, we present a single microring resonator structure formed by incorporating a reflectivity-tunable loop mirror for the tuning of resonance spacing. Based on the optical mode-splitting in the resonator structure, spacing between two adjacent resonances can be tuned from zero to one whole free spectral range (FSR) by controlling the coupling strength between the two counter-propagating degenerate modes in the microring resonator. In experiment, by integrating metallic microheater, the resonance-spacing tuning over the whole FSR (1.17 nm) is achieved within 9.82 mW heating power dissipation. The device is expected to have potential applications in reconfigurable optical filtering and microwave photonics.

Paper Details

Date Published: 14 March 2016
PDF: 6 pages
Proc. SPIE 9752, Silicon Photonics XI, 97521B (14 March 2016); doi: 10.1117/12.2210967
Show Author Affiliations
Ge Gao, Huazhong Univ. of Science and Technology (China)
Shuai Yuan, Huazhong Univ. of Science and Technology (China)
Danping Li, Huazhong Univ. of Science and Technology (China)
Jinsong Xia, Huazhong Univ. of Science and Technology (China)

Published in SPIE Proceedings Vol. 9752:
Silicon Photonics XI
Graham T. Reed; Andrew P. Knights, Editor(s)

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