Power Measurement of 200 kW Ultrahigh‐Power Fiber Laser Traceable to SI Basic Unit

Qing Sun; Dongchen Jin; Qiqi Shen; Yunfeng Duan; Zhaohui Liu; Bailin Cao; Juyun Zhao; Xiaohua Chen

doi:10.3788/CJL241251

Chinese Journal of Lasers, Volume. 52, Issue 3, 0315001(2025)

Power Measurement of 200 kW Ultrahigh‐Power Fiber Laser Traceable to SI Basic Unit

Qing Sun^1、*, Dongchen Jin², Qiqi Shen¹, Yunfeng Duan³, Zhaohui Liu¹, Bailin Cao², Juyun Zhao², and Xiaohua Chen²

Author Affiliations

¹Division of Optical Metrology, National Institute of Metrology, Beijing 100029,China

²BWT Beijing Ltd., Beijing 100006, China

³BWT Tianjin Ltd., Tianjin 300201, China

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References(7)

[1] Kawahito Y, Wang H Z, Katayama S et al. Ultra high power (100 kW) fiber laser welding of steel[J]. Optics Letters, 43, 4667-4670(2018).

[2] Jin D C, Duan Y F, Sun Q et al. 150 kW ultra-high power fiber laser[J]. Chinese Journal of Lasers, 51, 1416001(2024).

[3] OPHIR. 120K-W[EB/OL]. https:∥www.ophiropt.com/zh/f/120k-w-water-cooled-thermopile-sensor

[4] Williams P A, Artusio-Glimpse A B, Hadler J A et al. Radiation-pressure-enabled traceable laser sources at CW powers up to 50 kW[J]. IEEE Transactions on Instrumentation and Measurement, 68, 1833-1839(2019).

[5] Tam T V, Kyle A R, Daniel W K et al. Measurement of 140 kW continuous-wave laser power using radiation pressure[C], 223-224(2023).

[6] Sun Q, Ma C, Lin Y D et al. High-power laser measurement device based on light pressure principle[J]. Chinese Journal of Lasers, 48, 0315002(2021).

[7] Zhao L Q, Sun Z S, Yu D Y et al. Measurement repeatability of high power laser measuring device based on light pressure[J]. Chinese Optics, 16, 382-389(2023).

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Qing Sun, Dongchen Jin, Qiqi Shen, Yunfeng Duan, Zhaohui Liu, Bailin Cao, Juyun Zhao, Xiaohua Chen. Power Measurement of 200 kW Ultrahigh‐Power Fiber Laser Traceable to SI Basic Unit[J]. Chinese Journal of Lasers, 2025, 52(3): 0315001

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Paper Information

Category: Letters

Received: Oct. 9, 2024

Accepted: Nov. 18, 2024

Published Online: Jan. 20, 2025

The Author Email: Sun Qing (sunqing@nim.ac.cn)

DOI:10.3788/CJL241251

CSTR:32183.14.CJL241251

Topics

laser devices and laser physics

Lasers and Laser Optics

Laser physics

laser manufacturing

Instrumentation, Measurement and Metrology