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Pedestal suppression from compressed femtosecond pulses using a nonlinear fiber loop mirror

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3 Author(s)
Pelusi, M.D. ; Femtosecond Technol. Res. Assoc., Tsukuba, Japan ; Matsui, Y. ; Suzuki, A.

The compression of higher order soliton pulses in dispersion decreasing fibers (DDF's) generates ultrashort fundamental soliton-like pulses accompanied by a broad low-intensity pedestal component. In this paper, we investigate the subsequent removal of the pedestal using a nonlinear optical fiber loop mirror (NOLM) to produce high-quality pulses. The influence of higher order effects such as stimulated Raman scattering and third-order fiber dispersion on the pedestal removal from ultrashort pulses are considered, and the effectiveness of using dispersion-flattened fiber within the loop is shown. The technique is experimentally demonstrated for 540-fs pulses generated by compression in DDF. In this case, high-quality pulses are produced by pedestal removal using a NOLM constructed from dispersion-shifted fiber

Published in:

Quantum Electronics, IEEE Journal of  (Volume:35 ,  Issue: 6 )