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Journal of Lightwave Technology

Journal of Lightwave Technology

| A JOINT IEEE/OSA PUBLICATION

  • Vol. 23, Iss. 1 — Jan. 1, 2005
  • pp: 159–

Maximum-Likelihood Optimal-Sampling-Phase Estimation for Ultra-High-Sensitivity Optically Preamplified Duobinary Receivers

Lothar Möller, Chongjin Xie, Roland Ryf, Xiang Liu, and Xing Wei

Journal of Lightwave Technology, Vol. 23, Issue 1, pp. 159- (2005)


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Abstract

This paper describes the demonstration of a novel method for detecting optical duobinary signals. Oversampling in combination with maximum-likelihood estimation-based data processing of the optical-to-electronic converted signal results in a record sensitivity for an optically preamplified receiver. The concept is investigated at 10 Gb/s and allows data recovery at bit-error rates of 1 x 10^-9 and 1 x 10^-3 with a receiver sensitivity of better than -39.5 dBm and an optical signal-to-noise ratio (OSNR) of only 7.8 dB, respectively.

© 2005 IEEE

Citation
Lothar Möller, Chongjin Xie, Roland Ryf, Xiang Liu, and Xing Wei, "Maximum-Likelihood Optimal-Sampling-Phase Estimation for Ultra-High-Sensitivity Optically Preamplified Duobinary Receivers," J. Lightwave Technol. 23, 159- (2005)
http://www.opticsinfobase.org/jlt/abstract.cfm?URI=jlt-23-1-159

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