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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1991),
  • paper CWL5

Beam coupling by cooperative nonlinearities

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Abstract

Nondegenerate, two-beam coupling due to increasing absorption in Tm:YALO crystals at room temperature is reported. We measured the power-dependent nonlinear refractive index using a new technique. Also we explain the origin of this resonantly enhanced nonlinearity by cooperative dynamics involving pairs of coupled Tm ions in concentrated crystals.

© 1991 Optical Society of America

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