Huber, Rupert and Adler, F. and Leitenstorfer, A. and Beutter, M. and Baum, P. and Riedle, E. (2003) 12 fs pulses from a cw-pumped 200 nJ Ti:sapphire amplifier at a variable repetition rate of up to 4 MHz. Optics Letters 28 (21), pp. 2118-2120.
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We demonstrate a novel compact femtosecond Ti:sapphire laser system operating at repetition rates from 10 kHz to 4 MHz. The scheme is based on the combination of a broadband cavity-dumped oscillator and a double-pass Ti:sapphire amplifier pumped by a low-noise cw solid-state laser. Amplified pulses with an extremely smooth spectrum, a duration of only 12 fs, and less than 0.25% rms fluctuation are generated in a beam with M2 < 1.2 . A maximum pulse energy of 210 nJ and an average output power of as much as 720 mW are achieved. This output energy is sufficient to generate a stable continuum in a sapphire disk.
|Institutions:||Physics > Institute of Experimental and Applied Physics > Chair Professor Huber > Group Rupert Huber|
|Subjects:||500 Science > 530 Physics|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||31 Jan 2011 12:50|
|Last Modified:||21 Jul 2011 02:05|