標題: Analysis of Laser Phase Noise Effect in Direct-Detection Optical OFDM Transmission
作者: Peng, Wei-Ren
光電工程學系
Department of Photonics
關鍵字: Direct detection;optical fiber communication;orthogonal frequency division multiplexing (OFDM);optical modulation;phase noise
公開日期: 1-九月-2010
摘要: In this paper, we characterize the impact of laser phase noise (PN) in direct-detection optical OFDM (DDO-OFDM) and identify its many differences from those in coherent optical OFDM (CO-OFDM). The analytical models for the diverse PN effects, including power degradation, phase rotation term (PRT), and inter-carrier interference (ICI), are given in terms of critical system parameters with or without the small PN assumption. In particular, the analytical upper-bound of the ICI power with a simple form is also provided. We also present a bit error rate (BER) estimation approach which is proven to be reliable for an optical signal-to-noise-ratio (OSNR) penalty lower than 2 dB. In addition, the PN tolerances, in terms of OSNR penalty, are also numerically analyzed and discussed with different QAM formats, data rates, laser linewdiths, and subcarrier numbers.
URI: http://dx.doi.org/10.1109/JLT.2010.2055834
http://hdl.handle.net/11536/32248
ISSN: 0733-8724
DOI: 10.1109/JLT.2010.2055834
期刊: JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume: 28
Issue: 17
起始頁: 2526
結束頁: 2536
顯示於類別:期刊論文


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