环状输出UR90束旋转非稳腔的实验研究
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摘要: 提出一种适合于高功率超音速横流氧碘化学激光器的环状输出的UR90束转非稳腔,采用FFT 方法模拟了具有非均匀分布的小信号增益时最低阶模的光场强度分布。利用大口径铜蒸汽激光器, 通过实验研究了在放大倍率为1.21和1.13的情况下,环状输出UR90腔正向模与反向模的基本特性, 得到较好的实验结果。
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关键词:
- 氧碘化学激光器 /
- 环形输出UR90束旋转非稳腔 /
- 光束质量
Abstract: A annular output unstable resonator with 90° beam rotation suitable for high-power supersonic chemical oxgen-iodine lasers (COIL) is given, intensity distribution of lowest-order mode with inhom ogeneous distribution of small signal gain is calculated by FFT method.The prop erties of forward mode and reverse mode of this resonator at magnification M＝1.21 and 1.3 are studied by copper vapor laser experiments, a good experimental result is obtained．-
Key words:
- coil /
- annular output ur90 resonator /
- beam quality
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