Open Access13-W and 1000-Hz of a 2.7-µm laser on the 968 nm LD side-pumped Er:YAP crystal with concave end-faces
Author(s) -
Cong Quan,
Dunlu Sun,
Huili Zhang,
Jing Luo,
Lunzhen Hu,
Zhiyuan Han,
Kunpeng Dong,
Yuwei Chen,
Maojie Cheng
Publication year - 2021
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.428874
Subject(s) - optics , materials science , laser , crystal (programming language) , wavelength , slope efficiency , far infrared laser , optoelectronics , fiber laser , physics , computer science , programming language
We demonstrate a 968-nm LD side-pumped Er:YAP laser with concave end-faces and a working frequency of 50∼1000 Hz. The maximum average powers of 26.75 and 13.18 W are obtained at 250 and 1000 Hz, corresponding to the slope efficiency of 16.2% and 9.0%, respectively. The M2 factors of 7.98 and 1.49 are determined under the multi-mode and single-mode, and three laser wavelengths of 2713, 2732 and 2796 nm are observed. The results indicate that the LD side-pumped Er:YAP crystal with negative curvature end-faces is a promising candidate for the high power and high frequency mid-infrared laser device.