Journal of Applied Optics, Volume. 45, Issue 2, 398(2024)
Peak power measurement device of terawatt femtosecond pulsed laser and measurement uncertainty analysis
Figures & Tables(10)
Fig. 1. Composition diagram of peak power measurement system of terawatt-level femtosecond pulsed laser
Fig. 2. Composition diagram of Ti:Sapphire femtosecond laser source system
Fig. 3. Working schematic diagram of Ti:Sapphire femtosecond seed source
Fig. 4. Working schematic diagram of femtosecond regeneration amplification system
Fig. 5. Schematic diagram of spectral phase coherent direct electric field reconstruction device
Table 1. Uncertainty of femtosecond laser pulse energy measurement
View tableView in ArticleTable 1. Uncertainty of femtosecond laser pulse energy measurement
测量不确定度分量 测量不确定度值/% 评定方法 能量计线性度u1 0.58 B类 能量计（含衰减片）面均匀性u2 1.74 B类 能量计标校u3 2.00 B类 测量重复性u4 0.82 A类 相对合成不确定度 2.9 / 相对扩展不确定度（k=2） 5.7 /
Table 2. Uncertainty of femtosecond laser pulse width measurement
View tableView in ArticleTable 2. Uncertainty of femtosecond laser pulse width measurement
不确定度分量 测量不确定度/% 评定方法 脉冲波形测量时间分辨率u1 0.58 B类 分束镜等光学元件脉宽展 宽引入的不确定度u2 0.58 B类 脉宽标定引入的测量不确定度u3 7.50 B类 测量重复性引入的不确定度分量u4 2.05 A类 相对合成不确定度 7.9 / 相对扩展不确定度（k=2） 15.7 /
Table 3. Measurement results of 10 fs femtosecond laser pulse energy, pulse width, and peak power
View tableView in ArticleTable 3. Measurement results of 10 fs femtosecond laser pulse energy, pulse width, and peak power
测量次数 脉冲能量/mJ 脉冲宽度/fs 峰值功率/TW 1 0.220 10.1 0.0205 2 0.215 9.9 0.0204 3 0.217 10.4 0.0196 4 0.219 9.6 0.0214 5 0.212 9.8 0.0203 6 0.232 10.6 0.0206 平均值 0.219 10.1 0.0272 测量重复性 3.2% 3.8% 2.9%
Table 4. Uncertainty of femtosecond laser peak power measurement
View tableView in ArticleTable 4. Uncertainty of femtosecond laser peak power measurement
不确定度分量 测量不确定度/% 评定方法 脉冲能量测量引入的不确定度u1 2.9 B类 脉冲宽度测量引入的不确定度u2 7.9 B类 测量重复性的测量不确定度u3 2.9 A类 相对合成不确定度 8.8 / 相对扩展不确定度（k=2） 17.6 /
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Guangyi ZHU, Shangzhong JIN, Lei WU, Yuanyuan XUE, Yunlong MO, Yue YOU, Yunlong ZHANG, Bing YU, Hongru YANG, Zaitian DONG, Fei LU. Peak power measurement device of terawatt femtosecond pulsed laser and measurement uncertainty analysis[J]. Journal of Applied Optics, 2024, 45(2): 398
Paper Information
Category: Research Articles
Received: Mar. 30, 2023
Accepted: --
Published Online: May. 28, 2024
The Author Email: ZHU Guangyi (317350325@qq.com)
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