Open AccessStudy on tapered chirped fiber grating filter
Author(s) -
Bin Yin,
Ya Bai,
Yanhui Qi,
Feng Su-Chun,
Shuisheng Jian
Publication year - 2013
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.62.214213
Subject(s) - optics , materials science , grating , tapering , fiber bragg grating , long period fiber grating , chirp , coupled mode theory , filter (signal processing) , blazed grating , graded index fiber , wavelength , optical fiber , diffraction grating , refractive index , fiber optic sensor , physics , laser , computer science , computer graphics (images) , computer vision
Tapered chirped fiber grating filter is analyzed from the detailed theoretical and experimental studies. The transmission spectrum of tapered chirped fiber grating filter is influenced by the parameters and loss of chirped fiber grating (length, refractive index modulation, chirp coefficient) and taper after examined by the transfer matrix method and resonance theory combined with coupled-mode theory. We study the influence of the chirped fiber grating wavelength reflectivity by tapering, and make the corresponding numerical simulation and experimental verification based on the above theories. Numerical simulation result is consistent with the experimental data.