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Silicon slow-light-based photonic mixer for microwave-frequency conversion applications

A. M. Gutiérrez, A. Brimont, J. Herrera, M. Aamer, J. Martí, D. J. Thomson, F. Y. Gardes, G. T. Reed, J. M. Fedeli, and P. Sanchis

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Abstract

We describe and demonstrate experimentally a method for photonic mixing of microwave signals by using a silicon electro-optical Mach–Zehnder modulator enhanced via slow-light propagation. Slow light with a group index of ∼11, achieved in a one-dimensional periodic structure, is exploited to improve the upconversion performance of an input frequency signal from 1 to 10.25 GHz. A minimum transmission point is used to successfully demonstrate the upconversion with very low conversion losses of ∼7  dB and excellent quality of the received I/Q modulated QPSK signal with an optimum EVM of ∼8%.

©2012 Optical Society of America

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