https://doi.org/10.1051/epjconf/20134110017
All-fiber femtosecond Cherenkov source
1 DTU Fotonik, Technical University of Denmark, DK-2800 Kgs. Lyngby, Denmark
2 Biophotonics Imaging Laboratory, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, U.S.A.
3 Max Planck Institute for Polymer Research, Ackermannweg 10, 55128 Mainz, Germany
a e-mail: dmtu@fotonik.dtu.dk
An all-fiber femtosecond Cherenkov radiation source is demonstrated for the first time, to the best of our knowledge. Using a stable monolithic femtosecond Ybdoped fiber laser as the pump source, and the combination of photonic crystal fibers as the wave-conversion medium, we have generated tunable Cherenkov radiation at visible wavelengths 580 – 630 nm, with pulse duration of sub-160 fs, and the 3 dB spectral bandwidth not exceeding 36 nm. Such femtosecond source can find applications in practical biophotonics such as bio-imaging and microscopy.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
