Silicon-based electro-optic modulators for linear and nonlinear radio-over-fiber applications

Gutierrez, A. M., Galan, J. V., Herrera, J., Brimont, A., Aamer, M., Marti, J., Marris-Morini, D., Vivien, L., Fedeli, J. M., Thomson, D. J., Gardes, F. Y., Reed, G. T. and Sanchis, P. (2012) Silicon-based electro-optic modulators for linear and nonlinear radio-over-fiber applications. In 2012 IEEE International Topical Meeting on Microwave Photonics, MWP 2012 - Proceedings. IEEE. pp. 168-171 . (doi:10.1109/MWP.2012.6474083).

Abstract

The potential of silicon-based electro-optic modulators for enabling high performance radio-over-fiber applications is demonstrated. Two different applications taking advantage of the linear and nonlinear regime of silicon modulators are investigated. A ring-assisted Mach-Zehnder modulator (MZM) is firstly investigated for RF analog transmission. QPSK and 16-QAM electrical signals are modulated on a 1 GHz RF carrier with an error vector magnitude lower than 10% for a symbol rate of 20M symbols/s. A MZM enhanced via slow-light propagation is secondly investigated for photonic mixing applications. A 10M symbol/s QPSK signal at 1GHz RF frequency is successfully up-converted to 10.25 GHz with low conversion losses ∼7dB.

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Contributors

Author: F. Y. Gardes

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