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Grating compensation of third-order material dispersion in the normal dispersion regime: Sub-100-fs chirped-pulse amplification using a fiber stretcher and grating-pair compressor

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2 Author(s)
Kane, S. ; Centre for Ultrafast Opt. Sci., Michigan Univ., Ann Arbor, MI, USA ; Squier, J.

We describe a method for compensating large amounts of second- and third-order material dispersion, and we present two simple, compact and robust stretcher-compressor systems for microjoule-and millijoule-level chirped-pulse amplification. These systems, which use dispersive material to stretch and a modified grating pair to compress the pulse, provide expansion and compression with full cubic-phase compensation. Unlike previous fiber-stretcher systems which were limited to picosecond pulse durations, these systems can be used effectively with 50-fs microjoule pulses or 100-fs millijoule pulses. The results of our model are described, including the quartic-phase limitations for both systems. We discuss other applications of this grating pair to other areas of ultrafast optics, including intracavity dispersion compensation for femtosecond oscillators

Published in:

Quantum Electronics, IEEE Journal of  (Volume:31 ,  Issue: 11 )