All-Solid-State CW Intracavity Frequency-Doubling
Nd:Lu₂O₃/LBO Red Laser at 679.5 nm¹

Y. L. Li^a, *, L. X. Zhang^b, and Y. C. Zhang^a

^a School of Electronics and Information Engineering, Changchun University of Science and Technology,
Changchun 130022, China

^b Respiratory Department, Affiliated Hospital of Changchun University of Chinese Medicine,
Changchun 130021, China

*e-mail: liyongliang1973@163.com

Received November 29, 2011; published online April 3, 2012

Abstract—We report an efficient intracavity second-harmonic generation (SHG) at 1359 nm in a non-linear
optical crystal, LiB₃O₅ (LBO), performed with a diode end pumped continuous-wave (cw) Nd:Lu₂O₃ laser. In
the case of a laser with a Nd:Lu₂O₃ crystal frequency-doubled with a LBO crystal cut for type I frequency dou-
bling. A cw SHG output power of 462 mW has been obtained using a 10 mm long LBO crystal. The red power
stability was 3.4% in 4 h.

DOI: 10.1134/S1054660X12050179

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