Open AccessSimulation of reflection spectrum of FBG with uniaxial anisotropic crystal cladding
Author(s) -
Lijun Li,
Hui Ma,
Yanliang Zhang,
Sui Tao,
Lai Yong-Zheng,
Jing Li,
Maoyong Cao
Publication year - 2012
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.61.130201
Subject(s) - cladding (metalworking) , materials science , transcendental equation , anisotropy , wavelength , optics , isotropy , refractive index , reflection (computer programming) , numerical analysis , physics , mathematical analysis , optoelectronics , mathematics , composite material , computer science , programming language
In this paper, the ideal normal mode characteristic equation of the optical fiber with uniaxial anisotropic crystal cladding is derived. Using mean value theorem and combining Matlab numerical method, a solving algorithm of this transcendental equation is proposed. Therefore, the relationship between FBG reflect spectrum characteristic and cladding reflective index is simulated. The simulation results show that kcl has a strong influence on the spectrum, different values of kcl can lead to different reflectivities and different Bragg wavelengths.