直接检测的光正交频分复用信号光纤传输系统实验研究

陈林; 曹子峥; 董泽; 余建军

中国激光, 2009, 36 (3): 554, 网络出版: 2009-03-17

直接检测的光正交频分复用信号光纤传输系统实验研究

Experimental Investigation of Direct-Detection Optical Orthogonal Frequency-Division Multiplexing Transmission System

论文大纲

陈林 ^1,2,*曹子峥 ^1,2董泽 ^1,2余建军 ^1,2

作者单位

¹ 湖南大学计算机与通信学院, 湖南长沙 410082

² 湖南大学微纳光电器件及应用教育部重点实验室, 湖南长沙 410082

光纤通信光调制正交频分复用光正交频分复用 optical communication optical modulation orthogonal frequency-division multiplexing optical orthogonal frequency-division multiplexing

摘要

研制了直接检测的光正交频分复用(OOFDM)光纤传输实验系统。实验中产生了2 Gbit/s的正交相移键控(QPSK)、正交频分复用(OFDM)光信号,并成功地在标准单模光纤中传输了200 km。测量得到在误码率为10-6时,单模光纤传输200 km后的功率代价小于2 dB。比较了光纤传输前后OFDM信号的波形、频谱以及星座图,发现光正交频分复用信号能很好地抵抗光纤中的色散效应。

Abstract

An experimental system of direct-detection optical orthogonal frequency-division multiplexing (OOFDM) signal transmission over fiber was successfully built. In this experiment, the 2 Gbit/s quadrature phase shift keging (QPSK) optical OFDM signals are generated and transmitted over 200 km in single-mode fiber. After transmission in single-mode fiber over 200 km the power penalty is less than 2 dB at the bit error rate of 10-6. Comparing of waveform, electrical spectrum and constellation before and after transmission over fiber, the experimental results show that the optical OFDM signal can overcome the effect of chromatic dispersion in fiber.

参考文献

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陈林, 曹子峥, 董泽, 余建军. 直接检测的光正交频分复用信号光纤传输系统实验研究[J]. 中国激光, 2009, 36(3): 554. Chen Lin, Cao Zizheng, Dong Ze, Yu Jianjun. Experimental Investigation of Direct-Detection Optical Orthogonal Frequency-Division Multiplexing Transmission System[J]. Chinese Journal of Lasers, 2009, 36(3): 554.

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