Generation of a cross-phase-modulated third harmonic with unamplified femtosecond Cr : forsterite laser pulses in a holey fiber
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Generation of the third harmonic of unamplified 30-fs pulses of Cr:forsterite laser in a holey fiber is observed for the first time. Cross-phase modulation leads to the spectral broadening of third-harmonic pulses coming out of the fiber. This effect suggests the way of controlling the chirp of the third harmonic produced in a holey fiber and allows nonlinear-optical processes, enhanced in microstructure fibers due to the high degree of light localization in the fiber core, to be employed for frequency conversion with simultaneous pulse compression.
author list (cited authors)
Fedotov, A. B., Yakovlev, V. V., & Zheltikov, A. M.
complete list of authors
Fedotov, AB||Yakovlev, VV||Zheltikov, AM