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Proceedings Paper

Highly coherent octave-spanning supercontinuum generation in CS2-filled photonic crystal fiber with strong slow nonlinearity
Author(s): Liyun Wang; Jinhui Yuan; Kuiru Wang; Zhe Kang; Xinzhu Sang; Chongxiu Yu; Binbin Yan
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Paper Abstract

In this paper, the supercontinuum (SC) generation in a carbon disulfide (CS2)-filled photonic crystal fiber (PCF) with strong slow nonlinearity is investigated. When the PCF is pumped at 1.55 μm in the anomalous dispersion region, we obtain highly coherent SC spanning from 0.99 to 2.32 μm, at -40 dB level. Moreover, the influences of the slow nonlinearity, the input pulse width, the pulse peak power, the fiber length, and the temperature on the supercontinuum generation (SCG) are studied. The role of the slow nonlinearity in enhancing the coherence of SC is proved. To our best knowledge, this is the first demonstration on generating the octave-spanning SC with high coherence using the slow nonlinearity of CS2. CS2 is a material that has high nonlinearity coefficient and well transparency in infrared. What’s more, the slow nonlinearity is very strong in this material.

Paper Details

Date Published: 3 November 2016
PDF: 8 pages
Proc. SPIE 10029, Quantum and Nonlinear Optics IV, 100291G (3 November 2016); doi: 10.1117/12.2247045
Show Author Affiliations
Liyun Wang, Beijing Univ. of Posts and Telecommunications (China)
Jinhui Yuan, Beijing Univ. of Posts and Telecommunications (China)
Kuiru Wang, Beijing Univ. of Posts and Telecommunications (China)
Zhe Kang, Hong Kong Polytechnic Univ. (Hong Kong, China)
Xinzhu Sang, Beijing Univ. of Posts and Telecommunications (China)
Chongxiu Yu, Beijing Univ. of Posts and Telecommunications (China)
Binbin Yan, Beijing Univ. of Posts and Telecommunications (China)


Published in SPIE Proceedings Vol. 10029:
Quantum and Nonlinear Optics IV
Qihuang Gong; Guang-Can Guo; Byoung Seung Ham, Editor(s)

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