A simple four-pass Ti:sapphire amplifier is seeded by sub-10-fs pulses generated from a mirror-dispersion-controlled Ti:sapphire laser. Pulses of 17–18-fs duration with energies up to 50 and 100 µJ have been produced at repetition rates of 2 and 1 kHz, respectively. Because of the absence of a pulse stretcher, this performance is achieved from an extremely compact system.
© 1995 Optical Society of America
M. Lenzner, Ch. Spielmann, E. Wintner, F. Krausz, and A. J. Schmidt, "Sub-20-fs, kilohertz-repetition-rate Ti:sapphire amplifier," Opt. Lett. 20, 1397-1399 (1995)