High Power 1443.5 nm Laser with Nd:YAG Single Crystal Fiber

Han Rao; Zhaojun Liu; Zhenhua Cong; Yang Liu; Yongyao Xie; Wenrui Li; Xingyu Zhang

doi:10.3390/cryst7070189

Crystals (Jul 2017)

High Power 1443.5 nm Laser with Nd:YAG Single Crystal Fiber

Han Rao,
Zhaojun Liu,
Zhenhua Cong,
Yang Liu,
Yongyao Xie,
Wenrui Li,
Xingyu Zhang

Affiliations

Han Rao: School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China
Zhaojun Liu: School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China
Zhenhua Cong: School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China
Yang Liu: School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China
Yongyao Xie: School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China
Wenrui Li: School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China
Xingyu Zhang: School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China

DOI: https://doi.org/10.3390/cryst7070189
Journal volume & issue: Vol. 7, no. 7
p. 189

Abstract

Read online

A high-power eye-safe 1443.5 nm laser was demonstrated with an Nd:YAG single crystal fiber (SCF) as the gain medium. For continuous wave (CW) operation, a maximum output power of 13.3 W was obtained under an absorbed pump power of 95.0 W, corresponding to an optical-to-optical conversion efficiency of 14.0%. For acousto-optically (AO) Q-switched regime, an output power of 1.95 W was obtained at a pulse repetition frequency (PRF) of 10 kHz. The pulse duration was 69.5 ns. The pulse energy and peak power were calculated to be 195 µJ and 2.81 kW, respectively.

Published in Crystals

ISSN: 2073-4352 (Online)
Publisher: MDPI AG
Country of publisher: Switzerland
LCC subjects: Science: Chemistry: Crystallography
Website: http://www.mdpi.com/journal/crystals/

About the journal

Abstract

Keywords