Efficient 914 nm Nd3+:YVO4 laser by in-band pumping at 878 nm

This paper reports on an Nd 3+ :YVO 4 laser in-band pumped by a 878 nm diode laser. Compared with conventional 808 nm pumping, 878 nm pumping offers higher quantum efficiency and lower thermal load, thereby reducing thermal load and reabsorption losses. With a 0.2 at.% doped Nd 3+ :YVO 4 crystal, a continuous-wave (CW) output of 23.9 W is achieved under a 109 W ended 878 nm pump, corresponding to a slope efficiency of 23.8% and a beam quality factor of M x 2 = 1.9 and M y 2 = 1.5 . The RMS power stability is better than 0.38% over one hour. Passive Q-switching with a Cr:YAG saturable absorber (SA) produces an average output power of 15.2 W, corresponding to a single-pulse energy of 215.2 μJ and a peak power of 7.9 kW a 70.8 kHz. To the best of our knowledge, this work achieves the highest output power reported to date for both CW and Q-switched 914 nm Nd 3+ :YVO 4 lasers.

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Publication Details

Journal
Optics & Laser Technology
Published
2026-09-30
DOI
https://doi.org/10.1016/j.optlastec.2026.116532
Primary Topic
Solid State Laser Technologies
Type
article
Field-Weighted Citation Impact
0.00

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article

Efficient 914 nm Nd3+:YVO4 laser by in-band pumping at 878 nm

Wenbin Liao, Meiying Xie, Shuailei Yang, Xiaoming Yang et al.
Optics & Laser Technology
Solid State Laser Technologies
article

Efficient 914 nm Nd3+:YVO4 laser by in-band pumping at 878 nm

Wenbin Liao, Meiying Xie, Shuailei Yang, Xiaoming Yang, 歐振偉, Bingxuan Li, Youjian Wang, 刘振东, Shengyuan Pan, Ge Zhang, Rui Liu, Xifa Long
article en

Abstract

This paper reports on an Nd 3+ :YVO 4 laser in-band pumped by a 878 nm diode laser. Compared with conventional 808 nm pumping, 878 nm pumping offers higher quantum efficiency and lower thermal load, thereby reducing thermal load and reabsorption losses. With a 0.2 at.% doped Nd 3+ :YVO 4 crystal, a continuous-wave (CW) output of 23.9 W is achieved under a 109 W ended 878 nm pump, corresponding to a slope efficiency of 23.8% and a beam quality factor of M x 2 = 1.9 and M y 2 = 1.5 . The RMS power stability is better than 0.38% over one hour. Passive Q-switching with a Cr:YAG saturable absorber (SA) produces an average output power of 15.2 W, corresponding to a single-pulse energy of 215.2 μJ and a peak power of 7.9 kW a 70.8 kHz. To the best of our knowledge, this work achieves the highest output power reported to date for both CW and Q-switched 914 nm Nd 3+ :YVO 4 lasers.

Optics & Laser TechnologyVol. 204
Fujian Normal University (CN), Chinese Academy of Sciences (CN), Xinjiang Institute of Ecology and Geography (CN), Xinjiang Technical Institute of Physics & Chemistry (CN), Fujian Institute of Research on the Structure of Matter (CN), University of Chinese Academy of Sciences (CN), Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China (CN)
Science and Technology Projects of Fujian Province, National Natural Science Foundation of China, Chinese Academy of Sciences, Fujian Institute of Research on the Structure of Matter
Affordable and clean energy
Openalex Percentile: Top 22%
Solid State Laser Technologies
DOIOpen Access PDFOpenAlex
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