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Optical Engineering

Red-shifted solitons for coherent anti-Stokes Raman scattering microspectroscopy in a polarization-maintaining photonic crystal fiber
Author(s): Jinhui Yuan; Xinzhu Sang; Qiang Wu; Guiyao Zhou; Feng Li; Chongxiu Yu; Kuiru Wang; Binbin Yan; Ying Han; Hwa-Yaw Tam; Ping Kong Alexander Wai
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Paper Abstract

An alternative light source for coherent anti-Stokes Raman scattering (CARS) microspectroscopy based on red-shifted solitons in a polarization-maintaining photonic crystal fiber (PM-PCF) is experimentally demonstrated. By coupling femtosecond pulses into the anomalous dispersion region of the fundamental mode of a PM-PCF along the slow and fast axes, the red-shifted solitons generated can be used as the Stokes beams when the pump pulses are chosen as the pump beams. Through the process of red-shift, the frequency differences of the pump-Stokes beams are tunable in the ranges of 0 to 4068  cm1 and 0 to 4594  cm1, respectively. Moreover, because of the well maintained polarization states of the pump and Stokes beams and the high output powers of the solitons, CARS microspectroscopy using the proposed source will have a high signal-to-noise ratio and short data acquisition time. CARS microspectroscopy based on the proposed all-fiber light source can be used for studying a wide range of vibrational Raman spectra.

Paper Details

Date Published: 22 May 2015
PDF: 5 pages
Opt. Eng. 54(5) 056107 doi: 10.1117/1.OE.54.5.056107
Published in: Optical Engineering Volume 54, Issue 5
Show Author Affiliations
Jinhui Yuan, Beijing Univ. of Posts and Telecommunications (China)
Hong Kong Polytechnic Univ. (Hong Kong, China)
Xinzhu Sang, Beijing Univ. of Posts and Telecommunications (China)
Qiang Wu, Beijing Univ. of Posts and Telecommunications (China)
Northumbria Univ. (United Kingdom)
Guiyao Zhou, South China Normal Univ. (China)
Feng Li, The Hong Kong Polytechnic Univ. (China)
Chongxiu Yu, Beijing Univ. of Posts and Telecommunications (China)
Kuiru Wang, Beijing Univ. of Posts and Telecommunications (China)
Binbin Yan, Beijing Univ. of Posts and Telecommunications (China)
Ying Han, South China Normal Univ. (China)
Hwa-Yaw Tam, The Hong Kong Polytechnic Univ. (China)
Ping Kong Alexander Wai, The Hong Kong Polytechnic Univ. (China)


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