Low-threshold operation of an ultrashort-pulse mode-locked Ti:sapphire laser.
We demonstrate low-pump-power operation of a self-mode-locked Ti:sapphire laser. Stable, sub-20-fs duration pulses, with output powers of 35-100 mW, were obtained for pump powers in the range of 400 mW-1 W. Our design uses a tight focusing geometry for both the argon-ion and Ti:sapphire beams within the Ti:sapphire crystal, which significantly reduces the pump-power requirements.
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K
Blonigen
F
F
Riccelli
N
N
Murnane
M
M
Kapteyn
H
H