Open AccessAnalysis for long period fiber gratings using thermal kernel function
Author(s) -
Jinho Bae,
Jun Kye Bae,
Sang Hyuck Kim,
Sang Bae Lee,
Joohwan Chun
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.000797
Subject(s) - optics , thermal , long period fiber grating , materials science , transmission coefficient , spectral line , wavelength , function (biology) , coupling (piping) , kernel (algebra) , transmission (telecommunications) , optical fiber , physics , fiber optic sensor , graded index fiber , mathematics , telecommunications , computer science , quantum mechanics , evolutionary biology , combinatorics , biology , metallurgy , meteorology
To analyze the various LPFGs with thermal changes, we present how makes the kernel function to translate the information of thermal change into the coupling coefficient and detuning factor changed by temperature. We propose the extended fundamental matrix model with the proposed kernel function. To verify the validity of the proposed model experimentally, we have manufactured the LPFG structures with the thermal changes using the divided coil heater. We have observed that the transmission spectra calculated using the proposed model are close to the corresponding measured spectra in the wavelength band of interest.