发光学报2018，Vol.39Issue(6)：884-890,7.DOI:10.3788/fgxb20183906.0884
光子晶体光纤结构与掺杂对受激布里渊散射快光的影响
Influence of Structure and Doping on Stimulated Brillouin Scattering Fast Light in Photonic Crystal Fibers
摘要
Abstract
Time advancement of fast light in small signal regime was derived from three wave cou-pling equations of stimulated Brillouin scattering(SBS) in photonic crystal fibers(PCFs), and the influence of air-filling ratio and doping ( doped GeO2 ) on Brillouin frequency shift, time advance-ment, pulse broadening factor and pulse deformation were simulated by full vectorial finite element method. The results show that the Brillouin frequency shift decreases with the increase of air-filling ratio and doping mass fraction. The time advancement increases with the increase of air filling fac-tor, but decreases with the increase of doping mass fraction at a given pump power of 20 mW and fi-ber length of 10 m. The varying trend of broadening factor is just contrary to that of the time ad-vancement. The time advancement of 29. 7 ns and the pulse broadening factor of 0. 88 are achieved at the air filling factor of 0. 8 and GeO2 doping mass fraction of 18％. The Brillouin threshold de-creases with the increment of filling factor and decrement of doping mass fraction.关键词
受激布里渊散射/光子晶体光纤/快光/GeO2掺杂Key words
stimulated Brillouin scattering/photonic crystal fiber/fast light/GeO2 doped分类
信息技术与安全科学引用本文复制引用
牛帅斌,侯尚林,雷景丽,王道斌,李晓晓..光子晶体光纤结构与掺杂对受激布里渊散射快光的影响[J].发光学报,2018,39(6):884-890,7.基金项目
国家自然科学基金(61665005,61167005,61367007)资助项目Supported by National Natural Science Foundation of China(61665005,61167005,61367007) （61665005,61167005,61367007）
