激光杂志
激光雜誌
격광잡지
LASER JOURNAL
2014年
9期
36-38
,共3页
长周期光纤光栅%传输谱%光的耦合模理论%MATLAB语言
長週期光纖光柵%傳輸譜%光的耦閤模理論%MATLAB語言
장주기광섬광책%전수보%광적우합모이론%MATLAB어언
Long period fiber grating%Transmission spectra%The coupled mode theory of light%MATLAB lan-guage
基于光的耦合模理论，应用MATLAB仿真长周期光纤光栅传输谱特性研究，模拟得到平均有效折射率从0.000001变化到0.000030，对应的最低传输率从99.94%变化到37.78%；周期数从200变化到500，对应的最低传输率从0%变化到57.86%；周期从1.44e-8变化到4.44e-8，周期为3.44e-8时传输谱较好。研究结论为长周期光纤光栅器件的制作提供理论依据。
基于光的耦閤模理論，應用MATLAB倣真長週期光纖光柵傳輸譜特性研究，模擬得到平均有效摺射率從0.000001變化到0.000030，對應的最低傳輸率從99.94%變化到37.78%；週期數從200變化到500，對應的最低傳輸率從0%變化到57.86%；週期從1.44e-8變化到4.44e-8，週期為3.44e-8時傳輸譜較好。研究結論為長週期光纖光柵器件的製作提供理論依據。
기우광적우합모이론，응용MATLAB방진장주기광섬광책전수보특성연구，모의득도평균유효절사솔종0.000001변화도0.000030，대응적최저전수솔종99.94%변화도37.78%；주기수종200변화도500，대응적최저전수솔종0%변화도57.86%；주기종1.44e-8변화도4.44e-8，주기위3.44e-8시전수보교호。연구결론위장주기광섬광책기건적제작제공이론의거。
Based on the coupled mode theory of light, transmission spectrum characteristics of long period fiber grating were simulated by using MATLAB. The result that the minimum transmission rate is down from 99.94%to 37.78%corresponding to the averaged effective refractive index changes from 0.000001 to 0.000030, the minimum transmission rate is down from 0% to 57.86% corresponding to cycle changes from 200 to 500; when the cycle changes from 1.44e-8 to 4.44e-8, the transmitted spectrum is better at 3.44e-8 cycles. The results provide the theoreti-cal basis for development the long period fiber grating.
