LED band pump Nd∶YAG laser

HUANG Wendi; LI Xin; ZHONG Qixiu; ZHAO Tianzhuo

doi:10.7510/jgjs.issn.1001-3806.2022.03.014

LASER TECHNOLOGY > 2022 > 46(3): 385-389. > DOI: 10.7510/jgjs.issn.1001-3806.2022.03.014

HUANG Wendi, LI Xin, ZHONG Qixiu, ZHAO Tianzhuo. LED band pump Nd∶YAG laser[J]. LASER TECHNOLOGY, 2022, 46(3): 385-389. DOI: 10.7510/jgjs.issn.1001-3806.2022.03.014

Citation:

HUANG Wendi, LI Xin, ZHONG Qixiu, ZHAO Tianzhuo. LED band pump Nd∶YAG laser[J]. LASER TECHNOLOGY, 2022, 46(3): 385-389. DOI: 10.7510/jgjs.issn.1001-3806.2022.03.014

Citation:

HUANG Wendi, LI Xin, ZHONG Qixiu, ZHAO Tianzhuo. LED band pump Nd∶YAG laser[J]. LASER TECHNOLOGY, 2022, 46(3): 385-389. DOI: 10.7510/jgjs.issn.1001-3806.2022.03.014

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LED band pump Nd∶YAG laser

1.
Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100094, China
2.
School of Optoelectronics, University of Chinese Academy of Sciences, Beijing 100049, China

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Received Date: March 31, 2021
Revised Date: April 18, 2021
Published Date: May 24, 2022

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Abstract

Abstract

In order to study the influence of the pump light source spectrum and the absorption spectrum of the gain medium on the output efficiency of light-emitting diode(LED) band pump laser, and to improve the output efficiency, the spectral information was introduced into the laser rate equations to establish the rate equations of the LED band pump Nd∶YAG laser. Theoretical analysis and experimental verification of LED band pumped Nd∶YAG laser were carried out. The Nd∶YAG laser was side-pumped by infrared LEDs. Under the pump energy of 9.1mJ, a 1064nm laser output with an output energy of 607μJ was obtained. The slope efficiency of this LED band pump Nd∶YAG laser was 15.5%, and the corresponding optical-to-optical efficiency was 6.67%. The results show that the calculated solution of the rate equations was basically consistent with the experimental output energy, which is helpful for the study of improving the output efficiency of LED band pump laser.
- lasers,
- band pump,
- laser rate equations,
- light-emitting diode

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