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Proceedings Paper

Resonant optical nonlinearity of Nb-doped silica fiber measured with LPFG interferometer
Author(s): Litao Wang; Na Chen; Qiang Guo; Zhenyi Chen; Yunqi Liu; Tingyun Wang
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Paper Abstract

Recently, specialty fibers with various functional material doping have attracted significant attention. In this paper, we fabricated Nb-doped silica fiber and measured its resonant optical nonlinearity with long-period fiber gratings (LPFG) interferometer. The Nb-doped fiber was made with a combined MCVD and ALD technology. Then, we fabricated a pair of LPFGs and cascaded them as a Mach-Zehnder interferometer (MZI).By measuring the wavelength shifts of the interference fringe with the 532nm laser pump power, the resonant nonlinear refractive index of Nb-doped silica fiber around 1537 nm was estimated to be 8.12×10-16m2/W.

Paper Details

Date Published: 29 November 2012
PDF: 6 pages
Proc. SPIE 8554, Quantum and Nonlinear Optics II, 85541R (29 November 2012); doi: 10.1117/12.2011021
Show Author Affiliations
Litao Wang, Shanghai Univ. (China)
Na Chen, Shanghai Univ. (China)
Qiang Guo, Shanghai Univ. (China)
Zhenyi Chen, Shanghai Univ. (China)
Yunqi Liu, Shanghai Univ. (China)
Tingyun Wang, Shanghai Univ. (China)

Published in SPIE Proceedings Vol. 8554:
Quantum and Nonlinear Optics II
Qihuang Gong; Guang-Can Guo; Yuen-Ron Shen, Editor(s)

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