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

Research output: Journal article publicationJournal articleAcademic researchpeer-review

1 Citation (Scopus)

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.
Original languageEnglish
Article number056107
JournalOptical Engineering
Volume54
Issue number5
DOIs
Publication statusPublished - 1 May 2015

Keywords

  • coherent anti-Stokes Raman scattering microspectroscopy
  • polarization-maintaining photonic crystal fiber
  • red-shifted solitons

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering(all)

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