We demonstrate for the first time to our knowledge the use of mismatched grating pairs between the stretching and compression systems in a chirped-pulse amplification laser. Pulses as short as 57 fs are generated with 2000-lines/mm gratings in the compressor and 1200-lines/mm gratings in the stretcher.
© 1998 Optical Society of America
(050.1590) Diffraction and gratings : Chirping
(050.2770) Diffraction and gratings : Gratings
(140.0140) Lasers and laser optics : Lasers and laser optics
(320.1590) Ultrafast optics : Chirping
Jeff Squier, Chris P. J. Barty, Fraņois Salin, Catherine Le Blanc, and Steve Kane, "Use of Mismatched Grating Pairs in Chirped-Pulse Amplification Systems," Appl. Opt. 37, 1638-1641 (1998)