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首页> 外文会议>International conference on applications of optics and photonics >Multi-arm spectrometer for parallel frequency analysis of radio-wave signals oriented to astronomical observations
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Multi-arm spectrometer for parallel frequency analysis of radio-wave signals oriented to astronomical observations

机译：多臂光谱仪，用于针对天文观测的无线电信号并行频率分析

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We describe a potential prototype of modern spectrometer based on acousto-optical technique with three parallel optical arms for analysis of radio-wave signals specific to astronomical observations. Each optical arm exhibits original performances to provide parallel multi-band observations with different scales simultaneously. Similar multi-band instrument is able to realize measurements within various scenarios from planetary atmospheres to attractive objects in the distant Universe. The arrangement under development has two novelties. First, each optical arm represents an individual spectrum analyzer with its individual performances. Such an approach is conditioned by exploiting various materials for acousto-optical cells operating within various regimes, frequency ranges, and light wavelengths from independent light sources. Individually produced beam shapers give both the needed incident light polarization and the required apodization for light beam to increase the dynamic range of the system as a whole. After parallel acousto-optical processing, a few data flows from these optical arms are united by the joint CCD matrix on the stage of the combined extremely high-bit rate electronic data processing that provides the system performances as well. The other novelty consists in the usage of various materials for designing wide-aperture acousto-optical cells exhibiting the best performances within each of optical arms. Here, one can mention specifically selected cuts of tellurium dioxide, bastron, and lithium niobate, which overlap selected areas withm the frequency range from 40 MHz to 2.0 GHz. Thus one yields the united versatile instrument for comprehensive studies of astronomical objects simultaneously with precise synchronization in various frequency ranges.
机译：我们描述了一种基于声光技术的现代光谱仪的潜在原型，它具有三个平行的光学臂，用于分析特定于天文观测的无线电波信号。每个光学臂均具有独创的性能，可同时提供不同比例的平行多波段观测。类似的多波段仪器能够实现从行星大气到遥远宇宙中各种引人入胜的物体在内的各种情况下的测量。发展中的安排有两个新颖之处。首先，每个光学臂代表一个具有各自性能的光谱分析仪。通过为声光电池开发各种材料来调节这种方法，声光细胞可以在各种状态，频率范围和来自独立光源的光波长下工作。单独生产的光束整形器既可以提供所需的入射光偏振，又可以提供所需的变迹，以增加整个系统的动态范围。经过并行声光处理后，来自这些光学臂的少量数据流在联合的超高比特率电子数据处理阶段也由联合CCD矩阵组合在一起，从而提供了系统性能。另一个新颖之处在于使用各种材料来设计在每个光学臂内表现出最佳性能的宽口声光电池。在这里，可以提到专门选择的二氧化碲，玄武岩和铌酸锂的切口，它们与频率范围从40 MHz到2.0 GHz的选定区域重叠。因此，人们产生了一种用于天文学的综合研究的多功能仪器，同时在各种频率范围内进行了精确同步。

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