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Pulses as short as 97 fs for an average power of 70 mW were obtained directly from a SESAM modelocked diode pumped laser based on the tetragonal NaY(WO4)2, a locally disordered double tungstate, doped with Yb. An extracavity prism pair helped to reduce the pulse duration to 90 fs with a corresponding time-bandwidth product of 0.321.
Inspec keywords: laser cavity resonators; sodium compounds; high-speed optical techniques; ytterbium; laser mode locking; laser beams; optical prisms; solid lasers; yttrium compounds
Other keywords:
Subjects: Laser resonators and cavities; Optical prisms and projection systems; Solid lasers; Lasing action in other solids; Laser beam modulation, pulsing and switching; mode locking and tuning; Ultrafast optical techniques; Laser beam modulation, pulsing and switching; mode locking and tuning; Laser beam characteristics and interactions; Laser resonators and cavities; Design of specific laser systems