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Proceedings Paper

Optofluidic ring resonator dye microlasers
Author(s): Siyka I. Shopova; Scott Lacey; Ian M. White; Yuze Sun; Hongying Zhu; Po Zhang; Xudong Fan
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Paper Abstract

We report on the development of versatile, miniaturized optofluidic ring resonator (OFRR) dye lasers that can be operated regardless of the refractive index (RI) of the liquid. The OFRR is a piece of a thin-walled fused silica capillary that integrates the photonic ring resonator with microfluidics. In an OFRR dye laser, the active lasing materials (such as dye) are passed through the capillary whereas the circular cross section forms a ring resonator and supports whispering gallery modes (WGMs) that provide optical feedback for lasing. Due to the high Q-factors (> 109), extremely low lasing threshold can be achieved. The operation wavelength can conveniently be changed by using different dye and fine-tuned with solvent. The laser can be out-coupled through a fiber taper in touch with the capillary, thus providing an easy guiding for the laser emission. Our experiments demonstrate lasing through direct excitation and through efficient energy transfer (ET). Theoretical analysis and experimental results for OFRR lasers are presented.

Paper Details

Date Published: 7 February 2008
PDF: 12 pages
Proc. SPIE 6872, Laser Resonators and Beam Control X, 68720W (7 February 2008); doi: 10.1117/12.761434
Show Author Affiliations
Siyka I. Shopova, Univ. of Missouri-Columbia (United States)
Scott Lacey, Franklin and Marshall College (United States)
Ian M. White, Univ. of Missouri-Columbia (United States)
Yuze Sun, Univ. of Missouri-Columbia (United States)
Hongying Zhu, Univ. of Missouri-Columbia (United States)
Po Zhang, Linn State Technical College (United States)
Xudong Fan, Univ. of Missouri-Columbia (United States)

Published in SPIE Proceedings Vol. 6872:
Laser Resonators and Beam Control X
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko, Editor(s)

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