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论述了干涉成像光谱技术的工作原理,采用光线追迹的方法对基于Sagnac棱镜和Savart偏光镜的干涉仪中的光线传播规律进行了分析,推导出了无狭缝式干涉成像光谱仪光通量的精确理论计算公式,并对干涉成像光谱仪中具有代表性的Savart型偏振干涉成像光谱仪光通量和改型Sagnac成像光谱仪光通量进行了分析比较.通过计算机模拟给出了系统光通量随入射角和波长变化的关系曲线.该研究对干涉成像光谱仪的研究和工程化研制具有重要的指导意义.
关键词:
干涉成像光谱仪
光通量
透射比 相似文献
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Experimental and Numerical Investigation of Single Frequency Amplifier with Photonic Bandgap Fiber at 1178 nm 下载免费PDF全文
A single frequency photonic bandgap fiber amplifier at 11 78nm is iuvestigated experimentally and numerically.With a pump power of 81 W, a single frequency 1178nm fiber laser of 10.3 W is obtained with a 3 W seed laser and a 20m gain fiber. Numerical simulation is conducted with a rate equation model taking amplified spontaneous emission and stimulated Brillouin scattering (SBS) into consideration. Temperature distribution along the fiber is applied for SBS suppression, more than 50 W single frequeney fiber laser at 1178 nm is predicted theoreticall.v with a 5 W seed laser and a 40m long gain fiber with five temperature steps. 相似文献
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