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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 24, Iss. 22 — Nov. 15, 1999
  • pp: 1611–1613

Intracavity second-harmonic and sum-frequency generation with a laser-diode-pumped multitransition-oscillation LiNdP4O12 laser

Kenju Otsuka, Ryoji Kawai, and Yusuke Asakawa  »View Author Affiliations


Optics Letters, Vol. 24, Issue 22, pp. 1611-1613 (1999)
http://dx.doi.org/10.1364/OL.24.001611


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Abstract

Efficient simultaneous intracavity second-harmonic and sum-frequency generation that is free from irregular large amplitude fluctuations (the so-called green problem) is achieved with a laser-diode-pumped LiNdP4 O12 (LNP) laser with a type II phase-matching KTiOPO4 crystal. Observed frequency-mixing operations result from the simultaneous single-frequency oscillations on different transitions that arise from the wide fluorescence linewidth in a stoichiometric LNP laser that possesses inherently high Nd concentrations. Sum-frequency generation has been shown to arise from the interaction of oscillating longitudinal modes that belong to different transitions. A promising application to coherent terahertz-wave radiation by use of photomixers is proposed.

© 1999 Optical Society of America

OCIS Codes
(140.3530) Lasers and laser optics : Lasers, neodymium
(140.3580) Lasers and laser optics : Lasers, solid-state
(190.2620) Nonlinear optics : Harmonic generation and mixing

Citation
Kenju Otsuka, Ryoji Kawai, and Yusuke Asakawa, "Intracavity second-harmonic and sum-frequency generation with a laser-diode-pumped multitransition-oscillation LiNdP4O12 laser," Opt. Lett. 24, 1611-1613 (1999)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-24-22-1611

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