The Journal of Korean Institute of Electromagnetic Engineering and Science (한국전자파학회논문지)

The Korean Institute of Electromagnetic Engineering and Science (한국전자파학회)
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Microwave Photonic Filter Using Optical True-Time-Delay Line Matrix

광 실시간 지연선로 행렬을 이용하는 마이크로웨이브 포토닉 필터

  • 정병민 (삼성탈레스 ISR.PGM연구소)
  • Received : 2014.10.31
  • Accepted : 2015.01.14
  • Published : 2015.02.27
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Abstract

Microwave Photonic(MWP) filters capable of use a bandpass filter or a notch filter with large bandwidth have been proposed. 4-lines${\times}$2-bit fiber-optic delay lines with a unit time-delay difference of 50 ps were experimentally realized. By changing the time-delay difference and the coefficients of microwave-modulated optical signals, the bandpass and notch filters were implemented and characterized.

본 논문에서는 밴드 패스 필터 및 노치 필터로의 용도 변환이 가능하고, 대역폭 변화가 용이한 새로운 구조의 MWP 필터를 제안하였다. 인접 채널의 단위 시간지연 차이가 50 ps인 $4{\times}2$ 광섬유 지연선로 행렬로 구성된 MWP 필터를 제작하였고, 각 채널의 시간 지연 및 MWP 필터의 주파수 응답 등의 특성을 측정하였다. RF 변조 광 신호의 시간 지연 차이와 계수를 변화시킴으로써 20 GHz와 6.67 GHz의 FSR 변화 특성을 확인하였다.

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References

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