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Proceedings Paper

A tunable optofluidic circular liquid fiber
Author(s): Lei Li; Wei Wu; Yang Shi; Enze Gong; Yi Yang
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Paper Abstract

This paper presents a tunable optofluidic circular liquid fiber through the numerical simulation. Fiber is a significant optical device and has been widely applied on optical fiber communication. But the fiber based solid has limited tunability. Compared to solid fiber, the fiber based liquid material is relatively infrequent. Cause for the liquid optical device has more freedom tunable properties than solid counterpart, it has attracted more interest. The traditional optofluidic waveguide is designed like a sandwich in planar channel. This two-dimensional (2D) structure liquid waveguide will face huge transmission loss in the perpendicular direction of the flow streams. In this paper, a curving microchannel is designed inside the microchip to produce centrifugal effect. Two different liquids are injected into the chip by external pumps. In a particular situation, the core flow will be totally surrounded by the cladding flow. So the liquid can form an optical waveguide. Its structure is similar to an optical fiber which high refractive index (RI) liquid is core of the waveguide and the low RI liquid is cladding of the waveguide. Profit from the reconfigurability of liquid material, this liquid fiber has excellent tunability. The diameter of the core flow can be tuned in a wider range by changing the volume ratio of the flows through the finite element analysis. It is predictable that such a tunable liquid fiber may find wider applications in lab-on-a-chip systems and integrated optical devices.

Paper Details

Date Published: 5 January 2017
PDF: 9 pages
Proc. SPIE 10244, International Conference on Optoelectronics and Microelectronics Technology and Application, 102442A (5 January 2017); doi: 10.1117/12.2267119
Show Author Affiliations
Lei Li, Wuhan Univ. (China)
Wei Wu, Wuhan Univ. (China)
Yang Shi, Wuhan Univ. (China)
Enze Gong, Wuhan Univ. (China)
Yi Yang, Wuhan Univ. (China)


Published in SPIE Proceedings Vol. 10244:
International Conference on Optoelectronics and Microelectronics Technology and Application
Shaohua Yu; Jose Capmany; Yi Luo; Yikai Su; Songlin Zhuang; Yue Hao; Akihiko Yoshikawa; Chongjin Xie; Yoshiaki Nakano, Editor(s)

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