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

Leilei Wu; Zhenhua Shen; Yuanlin Zheng; Zengyan Cai; Xianfeng Chen

doi:10.1117/1.OE.53.11.116105

6 November 2014 Whispering gallery mode microlaser based on a fiber-stand polydimethylsiloxane microresonator

Leilei Wu, Zhenhua Shen, Yuanlin Zheng, Zengyan Cai, Xianfeng Chen

Author Affiliations +

Optical Engineering, Vol. 53, Issue 11, 116105 (November 2014). https://doi.org/10.1117/1.OE.53.11.116105

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.

Citation Download Citation

Leilei Wu, Zhenhua Shen, Yuanlin Zheng, Zengyan Cai, and Xianfeng Chen "Whispering gallery mode microlaser based on a fiber-stand polydimethylsiloxane microresonator," Optical Engineering 53(11), 116105 (6 November 2014). https://doi.org/10.1117/1.OE.53.11.116105

Published: 6 November 2014

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