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How long wavelengths can one extract from silica-core fibers?
Author(s) -
Jesper Lægsgaard,
Haohua Tu
Publication year - 2013
Publication title -
optics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.38.004518
Subject(s) - photonic crystal fiber , materials science , wavelength , optics , zero dispersion wavelength , femtosecond , fiber , silica fiber , optical fiber , core (optical fiber) , dispersion shifted fiber , fiber laser , optoelectronics , laser , fiber optic sensor , physics , composite material
The generation of wavelengths above 3 μm by nonlinear processes in short silica photonic crystal fibers is investigated numerically. It was found that wavelengths in the 3-3.5 μm range may be generated quite efficiently in centimeter-long fiber pieces when pumping with femtosecond pulses in the 1.55-2 μm range. Wavelengths in the range of 3.5-4 μm can in principle be generated, but these require shorter fiber lengths for efficient extraction. The results indicate that useful 3 μm sources may be fabricated with existing silica-based fiber technology.

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