Design of narrow band-pass filter using two fiber bragg gratings

광섬유 격자소자를 이용한 협대역 투과 필터의 설계

  • 임종훈 (성균관대학교 전자공학과) ;
  • 이경식 (성균관대학교 전자공학과)
  • Published : 1998.08.01

Abstract

We propose and design a new type of anrrow band-pass optical filter based on two fiber gratings with different reflection wavelength. The ripples occur in the spectra of the filter with two uniform fiber gratings. Our simulation results also show that the ripples disappear with the fiber gratings apodized to both gaussian and hyperbolic tangent function. The hyperbolic tangent function seems to be a better apodization function for improving the filter's performance in terms of narrow pass bandwidth and high transmission.

Keywords