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Optica Publishing Group
  • CLEO/Europe and IQEC 2007 Conference Digest
  • (Optica Publishing Group, 2007),
  • paper CA_34

Continuous wave dual-wavelength operation at 1048 and 1386 nm in Nd3+:LaBGeO5 for yellow laser light generation

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Abstract

Compact diode-pumped solid state lasers in the yellow-orange spectral region based are useful in biomedicine for application in dermatology and ophthalmology. One way to obtain continuous wave laser radiation in the yellow is by nonlinear sum-frequency-mixing of laser waves around 1.06 and 1.3 microns originating in the infrared 4F3/24I11/2 and →4I13/2 laser channels of Nd3+. In case of continuous wave compact diode-pumped Nd3+ lasers may result if the two laser channels can be oscillated simultaneously and sum-frequency-mixing takes place in a nonlinear crystal placed intracavity [1]. In a more integrated version, the laser ions may be embedded in a nonlinear host crystal which performs both as a laser oscillator and as a frequency converter yielding a self-frequency converted laser [2], With this scheme microchip yellow lasers with dielectric mirrors directly deposited are potentially realizable. Up to date there are only a few reports on simultaneous continuous-wave oscillation of both infrared laser channels in different crystals. The low difference in stimulated emission cross section in both laser channels of Nd3+:LaBGe05 favours simultaneous oscillation.

© 2007 IEEE

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