Delivery of picosecond lasers in multimode fibers for coherent anti-Stokes Raman scattering imaging

Zhiyong Wang, Yaliang Yang, Pengfei Luo, Liang Gao, Kelvin K. Wong, Stephen T C Wong

Research output: Contribution to journalArticle

20 Scopus citations

Abstract

We investigated the possibility of using standard commercial multimode fibers (MMF), Corning SMF28 fibers, to deliver picosecond excitation lasers for coherent anti-Stokes Raman scattering (CARS) imaging. We theoretically and/or experimentally analyzed issues associated with the fiber delivery, such as dispersion length, walk-off length, nonlinear length, average threshold power for self-phase modulations, and four-wave mixing (FWM). These analyses can also be applied to other types of fibers. We found that FWM signals are generated in MMF, but they can be filtered out using a long-pass filter for CARS imaging. Finally, we demonstrated that MMF can be used for delivery of picosecond excitation lasers in the CARS imaging system without any degradation of image quality.

Original languageEnglish (US)
Pages (from-to)13017-13028
Number of pages12
JournalOptics Express
Volume18
Issue number12
DOIs
StatePublished - Jun 7 2010

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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