Characterization of a coherent optical RF channelizer based on a diffraction grating
Characterization of a coherent optical RF channelizer based on a diffraction grating
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DOI：
10.1109/22.954820
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发表时间：
2001-10-01
影响因子：
4.3
通讯作者：
Wu, MC
中科院分区：
文献类型：
--
作者：
Wang, WS;Davis, RL;Wu, MC
相干光射频通道器的构建和表征已经完成。光学通道器基于自由空间光学衍射光栅，并利用相干光学外差检测将所有频道转换为公共中频 (IF)。设计的光通道器具有 1 GHz 通道间隔和标称 5 GHz IF，并且可以提供大于 100 GHz 的瞬时带宽。信道化接收机以其频率为特征。响应、串扰和无杂散动态范围，结果与理论值非常吻合。
A coherent optical RF channelizer has been constructed and characterized. The optical channelizer is based on a free-space optical diffraction grating, and utilizes coherent optical heterodyne detection to translate all of the frequency channels to a common intermediate frequency (IF). The designed optical channelizer has a 1-GHz channel spacing, and a nominal 5-GHz IF, and can offer an instantaneous bandwidth greater than 100 GHz. The channelizing receiver has been characterized for its frequency. response, crosstalk, and spur-free dynamic range, and the results are in a good agreement with the theoretical values.