We produced transform-limited pulses as short as 130 fs with 160-mW average output power from a passively mode-locked Nd:glass laser. This is to our knowledge the first demonstration of an intracavity semiconductor antiresonant Fabry-Perot saturable absorber continuously starting a Kerr-induced passively mode-locked laser. The antiresonant Fabry-Perot saturable absorber, even with dispersion compensation, produced only picosecond pulses, and femtosecond performance was observed only with the addition of an intracavity long-pass wavelength filter. We propose a new mode-locking mechanism, which we refer to as Kerr-shift mode locking, in which the wavelength-dependent intracavity aperture and self-phase modulation in Nd:glass combine to produce a self-wavelength shift that reduces intracavity losses for femtosecond pulses.
机构:Center for Ultrafast Optical Science, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, MI, 48109-2099, 2200 Bonisteel, IST Building
SON, J
;
RUDD, JV
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机构:Center for Ultrafast Optical Science, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, MI, 48109-2099, 2200 Bonisteel, IST Building
RUDD, JV
;
WHITAKER, JF
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机构:Center for Ultrafast Optical Science, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, MI, 48109-2099, 2200 Bonisteel, IST Building
机构:Center for Ultrafast Optical Science, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, MI, 48109-2099, 2200 Bonisteel, IST Building
SON, J
;
RUDD, JV
论文数: 0引用数: 0
h-index: 0
机构:Center for Ultrafast Optical Science, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, MI, 48109-2099, 2200 Bonisteel, IST Building
RUDD, JV
;
WHITAKER, JF
论文数: 0引用数: 0
h-index: 0
机构:Center for Ultrafast Optical Science, Department of Electrical Engineering and Computer Science, The University of Michigan, Ann Arbor, MI, 48109-2099, 2200 Bonisteel, IST Building