Hollow-bottle optical microresonators
Hollow-bottle optical microresonators
复制标题
DOI：
10.1364/oe.19.020773
复制
发表时间：
2011-10-10
期刊：
影响因子：
3.8
通讯作者：
Zervas, M. N.
中科院分区：
文献类型：
--
作者：
Murugan, G. Senthil;Petrovich, M. N.;Zervas, M. N.
用压力补偿的“软化-压缩”方法制备了一种由二氧化硅微毛细管制成的鲁棒空心瓶光学微谐振器，并对其低语通道和瓶模式进行了选择性激发。利用锥形光纤沿空心瓶的不同位置耦合得到了瓶模的特征共振谱。光谱特性（q因子，激发效率）显示出对锥形光纤的角度失调有很高的容忍度。此外，在谐振器外表面引入局部损耗，可以选择性地清除透射谱，并具有优越的性能。利用模态拐点和相关共振波长的理论分析来解释模态抑制的机理和由此产生的光谱清洗。(C)2011美国光学学会
Selective excitation of whispering-gallery and bottle modes in a robust hollow-bottle optical microresonator, fabricated from a silica microcapillary by a pressure-compensated, "soften-and-compress" method, is demonstrated. Characteristic resonance spectra of bottle modes were obtained by using a tapered fiber coupled at different locations along the hollow bottle. The spectral characteristics (Q-factor, excitation efficiency) are shown to have high tolerance to angular misalignment of the tapered fiber. In addition, introduction of localized losses on the outer surface of the resonator results in selective clean-up of the transmission spectrum and superior performance. A theoretical analysis of modal turning points and associated resonant wavelengths is used to explain the mechanism of mode-suppression and the resultant spectral cleaning. (C)2011 Optical Society of America