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首页> 外文期刊>Optics Communications: A Journal Devoted to the Rapid Publication of Short Contributions in the Field of Optics and Interaction of Light with Matter >Performance enhancement of 10 Gb/s direct modulation optical OFDM by external optical injection
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Performance enhancement of 10 Gb/s direct modulation optical OFDM by external optical injection

机译：通过外部光注入提高10 Gb / s直接调制光OFDM的性能

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摘要

We show experimentally and by simulation a performance enhancement of a directly modulated 10 Gb/s optical Orthogonal Frequency Division Multiplexing (OFDM) system due to external optical injection. The experiment is performed back to back and over 12 km of single mode fiber. The injection extends the range of linear operation of the laser and therefore extends the usable bandwidth for direct modulation formats which are susceptible to nonlinearity, such as OFDM. Nonlinearity in the system and its reduction due to injection are estimated by means of a two tone test. Additionally the performance enhancement on OFDM systems was verified in both simulation and experimentally by the comparisons of the average Bit Error Rate (BER) and Error Vector Magnitude (EVM).
机译：我们通过实验和仿真显示了由于外部光注入而导致的直接调制10 Gb / s光学正交频分复用（OFDM）系统的性能增强。该实验是背对背进行的，并超过12 km的单模光纤。注入扩展了激光器的线性操作范围，因此扩展了对易受非线性影响的直接调制格式（例如OFDM）的可用带宽。系统的非线性及其因注入引起的降低可通过两次音调测试来估算。此外，通过比较平均误码率（BER）和误差矢量幅度（EVM），在仿真和实验上都验证了OFDM系统的性能增强。

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