Open AccessHigh quality sub-two cycle pulses from compression of supercontinuum generated in all-normal dispersion photonic crystal fiber
Author(s) -
Alexander M. Heidt,
Jan Rothhardt,
Alexander Hartung,
Hartmut Bartelt,
Erich G. Rohwer,
Jens Limpert,
Andreas Tünnermann
Publication year - 2011
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.19.013873
Subject(s) - supercontinuum , photonic crystal fiber , pulse compression , optics , materials science , self phase modulation , dispersion (optics) , chirp , pulse (music) , wavelength , nonlinear optics , optoelectronics , physics , laser , telecommunications , computer science , radar , detector
We demonstrate nonlinear pulse compression based on recently introduced highly coherent broadband supercontinuum (SC) generation in all-normal dispersion photonic crystal fiber (ANDi PCF). The special temporal properties of the octave-spanning SC spectra generated with 15 fs, 1.7 nJ pulses from a Ti:Sapphire oscillator in a 1.7 mm fiber piece allow the compression to 5.0 fs high quality pulses by linear chirp compensation with a compact chirped mirror compressor. This is the shortest pulse duration achieved to date from the external recompression of SC pulses generated in PCF. Numerical simulations in excellent agreement with the experimental results are used to discuss the scalability of the concept to the single-cycle regime employing active phase shaping. We show that previously reported limits to few-cycle pulse generation from compression of SC spectra generated in conventional PCF possessing one or more zero dispersion wavelengths do not apply for ANDi PCF.