A tunable and dispersion-insensitive microwave photonic filter

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• 作者：YaMei Zhang (1)
  ShiLong Pan (1)
  
• 关键词：microwave photonic filter ; single sideband modulation ; microwave photonics
• 刊名：SCIENCE CHINA Technological Sciences
• 出版年：2013
• 出版时间：March 2013
• 年：2013
• 卷：56
• 期：3
• 页码：603-607
• 全文大小：700KB
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• 作者单位：YaMei Zhang (1)
  ShiLong Pan (1)
  
  1. Microwave Photonics Research Laboratory, College of Electronic and Information Engineering Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China
  
• ISSN：1869-1900

文摘

A tunable and dispersion-insensitive two-tap microwave photonic filter (MPF) with a complex coefficient is proposed and demonstrated. By simply adjusting a polarization controller (PC) in one tap, the filter can be tuned over the entire free spectral range (FSR) while keeping the shape of the filter unchanged. Because the two taps are both single-sideband (SSB) modulated, the filter has high tolerance to fiber dispersion. The transmission response of a system with 25- or 40-km single-mode fiber (SMF) was measured and compared with an MPF with one double sideband (DSB) modulation tap. The proposed MPF shows much better performance for long-distance fiber transmission.