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Optical Engineering

Whispering gallery mode microlaser based on a fiber-stand polydimethylsiloxane microresonator
Author(s): Leilei Wu; Zhenhua Shen; Yuanlin Zheng; Zengyan Cai; Xianfeng Chen
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Paper Abstract

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  μJ/mm2 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.

Paper Details

Date Published: 6 November 2014
PDF: 4 pages
Opt. Eng. 53(11) 116105 doi: 10.1117/1.OE.53.11.116105
Published in: Optical Engineering Volume 53, Issue 11
Show Author Affiliations
Leilei Wu, Shanghai Jiao Tong Univ. (China)
Zhenhua Shen, Shanghai Jiao Tong University (China)
Yuanlin Zheng, Shanghai Jiao Tong University (China)
Zengyan Cai, Shanghai Jiao Tong Univ. (China)
Xianfeng Chen, Shanghai Jiao Tong Univ. (China)

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