22 February 2012 Continuously tunable time delay and advance in coupling-modulated microring resonators
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Proceedings Volume 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration; 833303 (2012); doi: 10.1117/12.920404
Event: Photonics and Optoelectronics Meetings 2011, 2011, Wuhan, China
Abstract
We experimentally demonstrate continuously tunable optical time delay and advance using coupling-modulated microring resonators (CMR) with a 15-μm radius. By modulating the coupling coefficient through thermo-optical effect based on micro-heater, the coupling state of the microring is flexibly controlled; as a result, a large dynamic time tuning range (from time advance to delay) is achieved. The CMR device based on SOI is fabricated with commercial 0.18-μm CMOS technology. A novel micro-heater structure was firstly used to thermally tune the coupling state of the micoring. Pulse delay and advance from -15 ps to 85 ps is experimentally realized.
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Yingtao Hu, Xi Xiao, Xianyao Li, Kang Xiong, Zhiyong Li, Yuntao Li, Tao Chu, Yude Yu, Jinzhong Yu, "Continuously tunable time delay and advance in coupling-modulated microring resonators", Proc. SPIE 8333, Photonics and Optoelectronics Meetings (POEM) 2011: Optoelectronic Devices and Integration, 833303 (22 February 2012); doi: 10.1117/12.920404; https://doi.org/10.1117/12.920404
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KEYWORDS
Microrings

Cardiovascular magnetic resonance imaging

Resonators

Picosecond phenomena

Waveguides

Geometrical optics

Phased array optics

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