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Pulsewidth of the mode-locked, internally frequency-doubled laser

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2 Author(s)
Falk, J. ; GTE Sylvania Inc., Electro-Optics Organization, Mountain View, CA, USA ; Hitz, C.

The variation in the output pulse duration of a mode-locked internally frequency-doubled (MLFD) laser was experimentally studied. The dependence of pulse duration on second-harmonic conversion rate and modulation index in a Nd:YAG laser is reported. The laser was frequency doubled by a barium sodium niobate crystal located inside the laser cavity and was mode locked by a quartz acousto-optic loss modulator. The observed variation of pulse duration with modulation depth and second-harmonic conversion rate is in good agreement with theory. The techniques reported should allow continuous variation of 1.06-μm pulse duration from about 50 ps to greater than 900 ps to be obtained.

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Quantum Electronics, IEEE Journal of  (Volume:11 ,  Issue: 7 )