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产品名称: | Lambda 421光束合成系统光束组合器 |
产品型号: | 产品产地: | 中国大陆 |
访问次数: | 161 | |
Lambda 421光束组合器是一种新的概念,用于将具有不同光谱的独立光源组合成一个单一的公共输出光束。每个单独的光源在通过带通滤波器进入光路之前都经过准直。每个光源的滤光片也起到镜子的作用,反射来自先前光源的准直光束。在下图中,概述了每个位置的光路,包括发生的反射 |
Lambda 421光束组合器是一种新的概念,用于将具有不同光谱的独立光源组合成一个单一的公共输出光束。每个单独的光源在通过带通滤波器进入光路之前都经过准直。每个光源的滤光片也起到镜子的作用,反射来自先前光源的准直光束。在下图中,概述了每个位置的光路,包括发生的反射:
传统上,组合两个以上的光源需要使用二向色阶梯。二向色镜在光谱中的一点从透射切换到反射,允许组合单独的光源,前提是这些光源没有重叠波长。这种方法的缺点是光源不能轻易改变。 二向色阶梯还需要特别注意光源引入光路的顺序,以避免光线被排成一行的下一个二向色镜阻挡。通常,必须在二向色镜之前的每个光源前面添加额外的带通滤波器,以便为每个光源选择所需的波长范围。阶梯中使用的每个滤光片和二向色镜都会降低系统的总光输出。
The Lambda 421 was designed to keep the size of the beam combiner small and the optical path short and efficient. Thin-film bandpass filters, such as Semrock’s STR, reflect greater than 90% of out-of-band light. If the band pass of each light source does not overlap, it is possible to use the filters for both attenuation and reflection of the light from the other sources. By arranging the filters and sources into a pentagon, we were able to combine four light sources in a compact design with lower losses than previously achievable. As an added benefit, the last position in the optical train does not require any filter, since no other input reflects from that position. This input can be used with any sort of light source as long as you are aware of the possible losses if there are filters in use that overlap this light source. The fifth side of the pentagon becomes the output for the combined sources. The filters are easily exchangeable and are installed on small sliders inside the core of the pentagon. Filters and associated light sources can be arranged in any order around the pentagon.
原创作者:深圳奥德赛创精密仪器有限公司 标签:Lambda 421光束合成系统 光束组合器 |
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