开发用于环境应用的可调谐窄紫外 Ce:LiCAF 晶体多通道激光放大器

Van Diep Nguyen, Xuan Tu Nguyen, Van Duong Pham, Thi Khanh Van Nguyen, Van Minh Nguyen, Van Thu Vu, Hong Minh Pham
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引用次数: 0

摘要

在本文中,作者介绍了利用 Ce:LiCAF 晶体开发紫外线和窄线宽脉冲振荡器和四通放大器的成果。通过在激光腔的一端使用光栅,激光器的输出波长可以从 285 纳米调谐到 296 纳米,在 288.5 纳米处的最大输出功率为 8 mW。此外,还对 Ce:LiCAF 激光器的 4 路放大器的放大效果进行了理论和实验研究。结果表明,在 288.5 nm 波长注入时,使用功率为 7.0 mW、脉冲持续时间为 3.6 ns 的 4 路放大器可获得 49.0 mW 的放大脉冲,相当于放大器增益为 7。 此外,还使用 Ce:LiCAF 激光器研究了一些常见单粒子气溶胶(如黑碳、褐碳和污染水)的角散射强度。这一结果可以作为多通道激光放大器在环境应用,特别是在识别大气颗粒方面的基础。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Development of a tunable, narrow, and ultraviolet Ce:LiCAF crystal multipass laser amplifier for environmental application
In this paper, the authors present results on the development of both an oscillator and a 4-pass amplifier of ultraviolet and narrow linewidth pulses using a Ce:LiCAF crystal. By using a grating at one end of the laser cavity, the output laser wavelength of the laser can be tuned from 285 nm to 296 nm with a maximum output power of 8 mW at 288.5 nm. Moreover, amplification in a 4-pass amplifier of the Ce:LiCAF laser was investigated theoretically and experimentally. From the results, 49.0 mW amplified pulses can be obtained using a 4-pass amplifier with 7.0 mW power and 3.6 ns pulse duration at 288.5 nm injection, corresponding to an amplifier gain of 7. Furthermore, the angular scattering intensity of some common single-particle aerosols such as black carbon, brown carbon, and polluted water has been studied using the Ce:LiCAF laser. This result can serve as the basis for the multipass laser amplifier’s environmental application, particularly in identifying atmospheric particles.
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