Actively stabilized silicon microring resonator switch arrays for optical interconnects

Yu Li; Andrew W. Poon

doi:10.1117/12.2214536

3 March 2016 Actively stabilized silicon microring resonator switch arrays for optical interconnects

Yu Li, Andrew W. Poon

Proceedings Volume 9751, Smart Photonic and Optoelectronic Integrated Circuits XVIII; 97510Q (2016) https://doi.org/10.1117/12.2214536
Event: SPIE OPTO, 2016, San Francisco, California, United States

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.

Citation Download Citation

Yu Li and Andrew W. Poon "Actively stabilized silicon microring resonator switch arrays for optical interconnects", Proc. SPIE 9751, Smart Photonic and Optoelectronic Integrated Circuits XVIII, 97510Q (3 March 2016); https://doi.org/10.1117/12.2214536

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