Cryogenically cooled 946nm Nd:YAG laser | Zendy

S. J. Yoon | Zendy; J. I. Mackenzie | Zendy

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Cryogenically cooled 946nm Nd:YAG laser

Author(s) -

S. J. Yoon,

J. I. Mackenzie

Publication year - 2014

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.22.008069

Subject(s) - materials science , neodymium , laser , optics , diode , slope efficiency , diode pumped solid state laser , yttrium , laser pumping , wavelength , optoelectronics , continuous wave , absorption (acoustics) , fiber laser , tunable laser , physics , metallurgy , composite material , oxide

We present the first multi-Watt demonstration of a diode pumped cryogenically cooled neodymium-doped yttrium aluminum garnet (YAG) laser operating at 946 nm on the (4)F(3/2) → (4)I(9/2) transition. 3.8 W of continuous wave output power for 12.8 W of absorbed pump was obtained with a slope efficiency of 47%. In addition, we made an extensive characterization of the spectroscopic properties around the pump and laser wavelengths over the temperature range of 77 K to 300 K to find an increase of ~2.5 times for both the absorption and emission cross sections at the lowest temperature.

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