Whispering gallery mode microlaser based on a fiber-stand polydimethylsiloxane microresonator

被引：3
作者：
Wu, Leilei [1 ]
Shen, Zhenhua [1 ]
Zheng, Yuanlin [1 ]
Cai, Zengyan [1 ]
Chen, Xianfeng [1 ]
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys & Astron, State Key Lab Adv Opt Commun Syst & Networks, Shanghai 200240, Peoples R China
来源：
OPTICAL ENGINEERING | 2014年 / 53卷 / 11期
基金：
中国国家自然科学基金;
关键词：
microlaser; whispering gallery mode; microresonator; OPTICAL MICROCAVITIES; LABEL-FREE; LASER; RESONATORS; MICROSPHERE; DEVICES;
D O I：
10.1117/1.OE.53.11.116105
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The whispering gallery mode (WGM) lasing in a polydimethylsiloxane (PDMS)-based microresonator is demonstrated with a convenient and crafty approach. Fabricated by directly brushing dye-doped PDMS solution on an optical fiber, the microresonator is self-formed due to the high surface tension. The size of the resonator can be widely tuned by using different droplet volumes and brushing speeds across the optical fiber. Lasing with a threshold as low as 2.5 mu J/ mm(2) is observed in this kind of fiber-stand PDMS microresonator. We also investigate the dependence of the lasing threshold on the different polarizations of the pump laser and size of the microresonator. This kind of WGM microresonator will find applications in optical sensors and on-chip integrated systems. (C) 2014 Society of Photo-Optical Instrumentation Engineers (SPIE)
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页数：4
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