Barty C P, Korn G, Raksi F, Rose-Petruck C, Squier J, Tien A C, Wilson K R, Yakovlev V V, Yamakawa K
Opt Lett. 1996 Feb 1;21(3):219-21. doi: 10.1364/ol.21.000219.
Regenerative pulse shaping is used to alleviate gain narrowing during ultrashort-pulse amplification. Amplification bandwidths of ~ 100 nm, or nearly three times wider than the traditional gain-narrowing limit, are produced with a modified Ti:sapphire regenerative amplifier. This novel regenerative amplifier has been used to amplify pulses to the 5-mJ level with a bandwidth sufficient to support ~ 10-fs pulses.