Spectroscopic Characterization and Diode-Pumped 910 nm
Laser
of Nd:LiLuF₄ Crystal¹

C. C. Zhao^{a, b}, M. Z. He^a, Y. Hang^a, *, J. G. Yin^{a, b}, L. H. Zhang^a,
X. M. He^a, J. Gong^{a, b}, T. Yu^c, and W. B. Chen^c

^a Key Laboratory of Materials for High Power Laser, Shanghai Institute of Optics and Fine Mechanics,
Chinese Academy of Sciences, Shanghai 201800, China

^b Research Center of Space Laser Information Technology, Shanghai Institute of Optics and Fine Mechanics,
Chinese Academy of Sciences, Shanghai 201800, China

^c Graduate School of Chinese Academy of Sciences, Beijing 100039, China

*e-mail: yhang@siom.ac.cn

Received December 13, 2011; in final form, December 22, 2011; published online April 3, 2012

Abstract—Polarized absorption and fluorescence spectra Nd³⁺-doped LiLuF₄ single crystal were investigated.
The peak emission cross section at 905 and 910 nm are 0.97 10^–20 and 0.82 10^–20 cm², respectively. Two
samples with different dimensions were tested in the laser experiments. With a laser-diode as the pump source,
a maximum 1.17 W laser output at 910 nm has been obtained with a slope efficiency of 16.3% with respect to
the pump power.

DOI: 10.1134/S1054660X12050362

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