Study on Thermal and Luminescence Properties of YAG:Ce Ceramics Excited by High‐Power Fiber Laser with the Condition of a Water‐Cooling Package

Author:

Wang Lichao1,Li Yang1ORCID,Li Xindi1,Zhu Yiwei1,Kang Jian23,Zhang Le23ORCID,Shao Cen23,Zou Jun4

Affiliation:

1. School of Materials Science and Engineering Shanghai Institute of Technology Shanghai 201418 China

2. Jiangsu Key Laboratory of Advanced Laser Materials and Devices School of Physics and Electronics Engineering Jiangsu Normal University Xuzhou 221116 China

3. Department of Research and Development Jiangsu Xiyi Advanced Materials Research Institute of Industrial Technology Xuzhou 221400 China

4. School of Science Shanghai Institute of Technology Shanghai 201418 China

Abstract

A high‐power white laser source is prepared by using a 455 nm blue laser to excite YAG:Ce ceramics. To achieve high‐power output, a water‐cooling device is used to reduce the operating temperature of ceramics. The luminescence properties of laser‐excited phosphor ceramics are studied under different blue excitation power and different irradiation time. The experimental results show that the luminous flux of phosphor ceramics excited by the blue laser increases linearly with the increase of blue laser power, depending on the heat dissipation of the water‐cooling device. When the blue laser power increases to 73.1 W, the phosphor ceramics do not reach the luminescence saturation state. The luminous flux of phosphor ceramics excited by 73.1 W blue laser is stable within 60 min. The maximum luminous flux is 8094 lm, and the maximum working temperature of the ceramics is 110 °C. The experimental results show that water‐cooling packages are an effective means to realize high‐power white laser sources.

Funder

Key Technologies Research and Development Program

Science and Technology Commission of Shanghai Municipality

Publisher

Wiley

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