摘要
利用H. J. Shaw提出的单模光纤定向耦合器的分析方法并结合微球腔的特性,对熔锥光纤与球微腔系统的耦合特性进行了理论分析和数值模拟.研究表明,由于原本简并的球腔模式受腔体偏心率的影响而解除,系统吸收峰间距减小,Q值( 106 ~107 )比将腔体视为理想球时提高了三个数量级.这与已报道的实验结果相吻合.
With single mode optical fiber orientation coupler proposed by H.J. Shaw and combining the properties of microsphere, theoretical analysis and numerical simulation for coupling properties of taper fiber and silicon-microsphere resonator are carried out. The research shows that since the elimination of the originally degenerated modes in the resonator under the influence of eccentricity of microsphere, the absorption peak gap of system lowered down, with value Q (1 million - 10 million) higher than the ideal microsphere for 3 magnitudes. These are consistent with the reported experimental results.
出处
《光电工程》
EI
CAS
CSCD
北大核心
2004年第4期20-23,共4页
Opto-Electronic Engineering
基金
国家自然科学基金资助项目(60277026
69878023)
关键词
球微腔
熔锥光纤
临界耦合
Microsphere resonator
Taper fiber
Critical coupling
