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Conferences > OFC > 2012 > OTh4H > OTh4H.6

Universal QAM Encoder/Converter using Fully Tunable Complex-Coefficient Optical Tapped-Delay Line

Salman Khaleghi, Mohammad Reza Chitgarha, Omer F. Yilmaz, Moshe Tur, Michael W. Haney, and Alan E. Willner

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Abstract

We experimentally demonstrate a tunable and reconfigurable optical scheme for encoding and converting of QAM symbols. 20/31 Gbaud QPSK signals are encoded/converted to higher order QAMs, including 64-QAM in an all-optical tunable tapped delay line. The OSNR penalty at 2×10−3 BER is measured to be~2 dB and~8 dB for conversions of 31 Gbaud BPSK to 15.5 Gbaud QPSK and 31 Gbaud QPSK to 15.5 Gbaud 16-QAM, respectively.

© 2012 Optical Society of America

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