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Proceedings Paper

Actively stabilized silicon microring resonator switch arrays for optical interconnects
Author(s): Yu Li; Andrew W. Poon
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Paper Abstract

We report our progress towards actively stabilized silicon microring switch arrays for optical interconnects using our recently proposed slope-detection method. The stabilization scheme utilizes an in-resonator all-silicon photomonitor that detects the detuning of the microring resonance wavelength from a carrier wavelength at 1550 nm. The photomonitor utilizes linear sub-bandgap surface-state absorption (SSA) on the unpassivated air-silicon waveguide interfaces. Our experiments demonstrate SSA-based photomonitors with a cavity-enhanced responsivity of ~ 1.9- 2.3 mA/W upon a bias voltage of -1 V. We demonstrate actively stablized 2-by-2 microring switch fabrics with intensity variations of ~1 dB over a temperature modulation of ~7 °C among the four transmission channels.

Paper Details

Date Published: 3 March 2016
PDF: 8 pages
Proc. SPIE 9751, Smart Photonic and Optoelectronic Integrated Circuits XVIII, 97510Q (3 March 2016); doi: 10.1117/12.2214536
Show Author Affiliations
Yu Li, The Hong Kong Univ. of Science and Technology (Hong Kong, China)
Andrew W. Poon, The Hong Kong Univ. of Science and Technology (Hong Kong, China)


Published in SPIE Proceedings Vol. 9751:
Smart Photonic and Optoelectronic Integrated Circuits XVIII
Sailing He; El-Hang Lee; Louay A. Eldada, Editor(s)

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