Analysis of the operating characteristics of a birefringent optical isolator

복굴절이 있는 광아이솔레이터의 동작 특성 분석

  • 조상연 (성균관대학교 대학원 전자공학과) ;
  • 강현서 (성균관대학교 대학원 전자공학과) ;
  • 이경식 (성균관대학교 전기전자컴퓨터 공학부)
  • Published : 1996.10.01

Abstract

The effect of the birefringence existing in the Faraday rotator on the isolation and transmission properties of the isolator was investigated. To maintain isolation of 50dB, both the deviation of the transmission angle between input and output polarizers and the deviation of the Faraday ratation angle are permitted to .+-.0.18.deg. for birefringenceless isolator and to .+-.0.09.deg. for birefringent isolator. This means that the isolator possessing linear birefringence of 0.5.deg. requires 505 more accurage adjustment than that of no birefringence. We also simulated the characteristics of wavelength dependence for both the virefringent isolator and the birefringencelless isolator. It is also found that formward transmission loss doesn't varing much with small birefringence.

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