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Optica Publishing Group
  • Conference on Lasers and Electro-Optics
  • OSA Technical Digest (Optica Publishing Group, 1995),
  • paper CWH8

Neodymium-doped 1.3-µm LSB, and GVO lasers and 1.4-µm YAG lasers

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Abstract

The 1.3-1.45-µm wavelength range is important for many practical applications. There is a limited number of neodymium-doped materials that lase efficiently in the range near 1.3 µm. The output power is usually not very high and the efficiency in the longer-wavelength range is generally much lower than theoretically expected. The reasons for this are not completely clear. Here, we present the results of an investigation of diode-pumped neodymium-doped LaSc3(BO3)4 (LSB) and GdVO4 (GVO) lasers operating near 1.3 µm and Nd:YAG lasing at 1.444 µm. It was shown earlier that GVO and LSB crystals are very efficient microchip lasers at 1.06 µm.1-3 Under diode pumping, 1-mm-long GVO and LSB crystals produce more than 1W of output power with a slope efficiency close to 60%.1-3 Similar results have been obtained with 5-8-mm-long Nd:YAG crystals.

© 1995 Optical Society of America

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