Red-shifted solitons for coherent anti-Stokes Raman scattering microspectroscopy in a polarization-maintaining photonic crystal fiber

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

doi:10.1117/1.OE.54.5.056107

22 May 2015 Red-shifted solitons for coherent anti-Stokes Raman scattering microspectroscopy in a polarization-maintaining photonic crystal fiber

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

Author Affiliations +

Optical Engineering, Vol. 54, Issue 5, 056107 (May 2015). https://doi.org/10.1117/1.OE.54.5.056107

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 cm−¹ and 0 to 4594 cm−¹, 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.

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Jinhui Yuan, Xinzhu Sang, Qiang Wu, Guiyao Zhou, Feng Li, Chongxiu Yu, Kuiru Wang, Binbin Yan, Ying Han, Hwa-Yaw Tam, and Ping Kong Alexander Wai "Red-shifted solitons for coherent anti-Stokes Raman scattering microspectroscopy in a polarization-maintaining photonic crystal fiber," Optical Engineering 54(5), 056107 (22 May 2015). https://doi.org/10.1117/1.OE.54.5.056107

Published: 22 May 2015

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