제어로봇시스템학회:학술대회논문집

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Application passband filter of multiply cascaded phase-shifted long-period fiber gratings

  • Kim, Min-Sung (Dept. of Information & Communication Eng., Tongmyong University of Information Technology) ;
  • Han, Young-Geun (Photonics Research Center, Korea Institute of Science and Technology (KIST)) ;
  • Kang, Dong-Joong (Dept. of Mechatronics Eng., Tongmyong University of Information Technology) ;
  • Ha, Jong-Eun (Dept. of Multimedia Eng., Tongmyong University of Information Technology) ;
  • Kim, Jin-Young (Dept. of Mechatronics Eng., Tongmyong University of Information Technology) ;
  • Lho, Tae-Jung (Dept. of Mechatronics Eng., Tongmyong University of Information Technology)
  • Published : 2005.06.02
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Abstract

The transmission characteristics of multiply cascaded phase-shifted long-period fiber gratings (LPFGs) will be investigated theoretically and experimentally. Their passband can be changed by increasing the number of ${\pi}$ -shifted LPFGs. When two ${\pi}$ -shifted LPFGs with different grating lengths are cascaded in series, the bandwidth of the rejection band and passband can be controlled by the pristine characteristics of two gratings.

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