Abstract

We perform a detailed theoretical and experimental investigation of supercontinuum generation in large-mode-area photonic crystal fibers pumped by a high-energy, high-repetition rate picosecond Nd:YVO4 laser, with the goal of using it as the Stokes beam in coherent anti-Stokes Raman scattering setup. We analyze the influence of fiber structure and length on the supercontinuum power, spectral shape, and group delay dispersion. We identify the experimental conditions for stable supercontinuum generation, with microjoule-level pulse energy and the spectrum extending beyond 1600 nm, which allows excitation of Raman frequencies up to 3000 cm−1 and beyond. We demonstrate reliable and efficient operation of a coherent anti-Stokes Raman spectroscopy and microscopy setup using this supercontinuum source.

Details

Title
Picosecond supercontinuum generation in large mode area photonic crystal fibers for coherent anti-Stokes Raman scattering microspectroscopy
Author
Shen, Yujie 1 ; Voronin, Alexander A 2 ; Zheltikov, Aleksei M 3   VIAFID ORCID Logo  ; Sean P O’Connor 1 ; Yakovlev, Vladislav V 1 ; Sokolov, Alexei V 4 ; Scully, Marlan O 4 

1  Texas A& M University, College Station, TX, USA 
2  Russian Quantum Center, ul. Novaya 100, Skolkovo, Moscow Region, Russia; Physics Department, International Laser Center, M. V. Lomonosov Moscow State University, Moscow, Russia; Kazan Quantum Center, A.N. Tupolev Kazan National Research Technical University, Kazan, Russia 
3  Texas A& M University, College Station, TX, USA; Russian Quantum Center, ul. Novaya 100, Skolkovo, Moscow Region, Russia; Physics Department, International Laser Center, M. V. Lomonosov Moscow State University, Moscow, Russia; Kazan Quantum Center, A.N. Tupolev Kazan National Research Technical University, Kazan, Russia 
4  Texas A& M University, College Station, TX, USA; Baylor University, Waco, TX, USA 
Pages
1-12
Publication year
2018
Publication date
Jun 2018
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1038/s41598-018-27811-5
ProQuest document ID
2058243805
Copyright
© 2018. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.