Optical frequency up-conversion by supercontinuum-free widely-tunable fiber-optic Cherenkov radiation | Zendy

Haohua Tu | Zendy; Stephen A. Boppart | Zendy

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Optical frequency up-conversion by supercontinuum-free widely-tunable fiber-optic Cherenkov radiation

Author(s) -

Haohua Tu,

Stephen A. Boppart

Publication year - 2009

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.17.009858

Subject(s) - supercontinuum , cherenkov radiation , optics , femtosecond , materials science , optoelectronics , photonic crystal fiber , laser , sapphire , optical fiber , narrowband , photon upconversion , ultrashort pulse , nonlinear optics , radiation , infrared , physics , detector

Spectrally-isolated narrowband Cherenkov radiation from commercial nonlinear photonic crystal fibers is demonstrated as an ultrafast optical source with a visible tuning range of 485-690 nm, which complementarily extends the near-infrared tuning range of 690-1020 nm from the corresponding femtosecond Ti:sapphire pump laser. Pump-tosignal conversion efficiency routinely surpasses 10%, enabling multimilliwatt visible output across the entire tuning range. Appropriate selection of fiber parameters and pumping conditions efficiently suppresses the supercontinuum generation typically associated with Cherenkov radiation.

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