Resonance-spacing tuning over whole free spectral range in a single microring resonator

Ge Gao; Shuai Yuan; Danping Li; Jinsong Xia

doi:10.1117/12.2210967

14 March 2016 Resonance-spacing tuning over whole free spectral range in a single microring resonator

Ge Gao, Shuai Yuan, Danping Li, Jinsong Xia

Proceedings Volume 9752, Silicon Photonics XI; 97521B (2016) https://doi.org/10.1117/12.2210967
Event: SPIE OPTO, 2016, San Francisco, California, United States

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.

Citation Download Citation

Ge Gao, Shuai Yuan, Danping Li, and Jinsong Xia "Resonance-spacing tuning over whole free spectral range in a single microring resonator", Proc. SPIE 9752, Silicon Photonics XI, 97521B (14 March 2016); https://doi.org/10.1117/12.2210967

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