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Title: Red-shifted solitons for coherent anti-Stokes Raman scattering microspectroscopy in a polarization-maintaining photonic crystal fiber
Authors: Yuan, J
Sang, X
Wu, Q
Zhou, G
Li, F
Yu, C
Wang, K
Yan, B
Han, Y
Tam, HY 
Wai, PKA 
Keywords: Coherent anti-Stokes Raman scattering microspectroscopy
Polarization-maintaining photonic crystal fiber
Red-shifted solitons
Issue Date: 2015
Publisher: SPIE-International Society for Optical Engineering
Source: Optical engineering, 2015, v. 54, no. 5, 056107 How to cite?
Journal: Optical engineering 
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-tonoise 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.
ISSN: 0091-3286
EISSN: 1560-2303
DOI: 10.1117/1.OE.54.5.056107
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