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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper CThR10

Barium borate optical parametric oscillator synchronously pumped by the third harmonic of a mode-locked Nd:YAG laser with passive negative feedback

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Abstract

Pulsed, passive negative feedback mode-locked (PNFM) solid-state lasers have demonstrated very good performances in generating long trains of very short and energetic pulses in several crystalline Nd-doped materials.1,2 PNFM is realized by inserting a GaAs platelet into the cavity of an actively passively mode-locked laser. Two-photon- absorption induced self-defocusing, which limits the intracavity intensity close to the saturable absorber saturation threshold, produces an optimum compression of the circulating pulse and delays the gain depletion, stretching the pulse train by several tens of roundtrips.

© 1991 Optical Society of America

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