Demonstration of flexible optical time-division multiplexing system for high-speed free-space optical communications

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• 作者：Hui Hu ; Fengchen Qian ; Xiaoping Xie ; Tao Duan ; Huan Feng
• 关键词：Optical time ; division multiplexing ; Free ; space optical communication ; Actively mode ; locked fiber ring laser ; OTDM de ; multiplexing
• 刊名：Journal of Optics
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：45
• 期：1
• 页码：1-6
• 全文大小：863 KB
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• 作者单位：Hui Hu (1) (2) (3)
  Fengchen Qian (1) (2)
  Xiaoping Xie (1)
  Tao Duan (1)
  Huan Feng (1) (2)
  
  1. State Key Laboratory of Transient Optics and Photonics, Xi’an Institute of Optics and Precision Mechanics, Chinese Academy of Sciences, Xi’an, 710119, China
  2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, China
  3. The School of Science, Xi’an Jiaotong University, Xi’an, 710106, China
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Electromagnetism, Optics and Lasers
  Laser Technology and Physics and Photonics
  Optical Spectroscopy and Ultrafast Optics
  
• 出版者：Springer India
• ISSN：0974-6900

文摘

A high-speed free-space optical communication scheme based on optical time-division multiplexing (OTDM) is experimentally demonstrated. By multiplexing eight 2.5Gb/s base-rate signals, which is generated from a repetition-tunable actively mode-locked fiber ring laser modulated by pseudo-random binary sequence data stream, a 20Gb/s OTDM packet is obtained. After 50 m high-speed FSO system transmission, the 20Gb/s OTDM packet is injected into a highly nonlinear fiber (HNLF) loop to realize polarization-insensitive de-multiplexing based on four-wave mixing (FWM). Experimental results show that the OTDM de-multiplexer bit error rate (BER) can achieve 10−9 level with steady operation over 24 h, proving the practicality of this system.