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Crystals 2017, 7(7), 189;

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

School of Information Science & Engineering and Shandong Provincial Key Laboratory of Laser Technology and Application, Shandong University, Jinan 250100, China
Author to whom correspondence should be addressed.
Academic Editors: Michel Ferriol and Helmut Cölfen
Received: 30 April 2017 / Revised: 18 June 2017 / Accepted: 23 June 2017 / Published: 1 July 2017
(This article belongs to the Special Issue Advances in Optical Crystal Fibers)
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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. View Full-Text
Keywords: single crystal fiber; Nd:YAG; eye-safe 1443.5 laser; laser diode single crystal fiber; Nd:YAG; eye-safe 1443.5 laser; laser diode

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Rao, H.; Liu, Z.; Cong, Z.; Liu, Y.; Xie, Y.; Li, W.; Zhang, X. High Power 1443.5 nm Laser with Nd:YAG Single Crystal Fiber. Crystals 2017, 7, 189.

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