论文部分内容阅读
阐明了影响固体激光器输出功率的根本原因是自聚焦效应,而菲涅耳衍射产生的空间高频调制是加速自聚焦过程的重要因素.为了消除硬边光阑产生菲涅耳衍射,作者建议采用宽频带激光,并用实验演示了其消衍射效果.
用增加频带宽度的方法提高钕玻璃高功率激光器输出功率
【摘 要】
：
阐明了影响固体激光器输出功率的根本原因是自聚焦效应,而菲涅耳衍射产生的空间高频调制是加速自聚焦过程的重要因素.为了消除硬边光阑产生菲涅耳衍射,作者建议采用宽频带激光,并用实验演示了其消衍射效果.
【机 构】
：
中国科学院上海光学精密机械研究所
【出 处】
：
光学学报
【发表日期】
：
1983年3期
其他文献
The effects of main laser parameters, such as pulse energy, pulse duration, frequency, and work time on laser propulsion of "air-breathing mode", are investigated experimentally with a high power and high repetition frequency TEA-CO2 pulsed laser. The r
高等学校实验教学承担着培养学生实践能力、创新能力和综合素质的重要任务。传统的实验教学模式在实验内容设置和安排上缺乏对学生自主研究、深度参与及提高综合能力的考虑,因而不利于学生个性和创新精神的养成。以《光电仪器电子学实验》课程为例提出了线上线下双反馈一体化的混合式实验教学模式。通过线上线下双反馈一体化的实验教学模式,可以形成一个发现问题、及时反馈、调整实验教学方案、跟踪评价并持续改进的闭环教育过程,有效提高学生学习的自主性、积极性,提高学习效果。
A high energy pulsed terahertz (THz) laser is studied experimentally. The laser cavity simply consists of a quartz glass waveguide, a coated GaAs input window, and a crystal quartz output window. NH
Biophotonics is an exciting and fast-expanding frontier which involves the fusion of advanced photonics and biology. It has not only created many novel methodologies for biomedical research, but also achieved many significant results as an independent fie
A diode-pumped Nd:YAG oscillator laser with an end-pumped zigzag slab architecture and weak pump absorption is developed. An output power of 253 W with a slope efficiency of 50.2% and an optical-optical conversion efficiency of 39.6% is achieved from the
A retroreflector that reflects light along its incident direction has found numerous applications in photonics, but the available metasurface schemes suffer from the issue of narrow bandwidth and/or a single angle of incidence. Here, a retroreflector usin
提出函数变换与二阶常系数齐次线性常微分方程相结合的方法,借助符号计算系统Mathematica构造了(3 1)维变系数Burgers方程的 类孤子新解,其由指数函数、三角函数和有理函数组成。