We propose a photonic radio-frequency (RF) channelization scheme which can slice the frequency spectrum into different subchannels through shaping the optical sampling pulse of each subchannel. An optical pulse shaper, which is composed of two cascaded multi-tap optical pulse shapers, is used in each subchannel to shape the sampling pulse. The principle of proposed scheme is theoretically analyzed, and experimentally verified. Through shaping the sampling pulse, the channel responses with 500 MHz bandwidth and center frequency of 7.5 GHz/8.5 GHz are experimentally measured.

中文翻译：

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基于光采样脉冲整形的宽带光子射频信道化

我们提出了一种光子射频 (RF) 信道化方案，通过对每个子信道的光采样脉冲进行整形，可以将频谱分割成不同的子信道。由两个级联多抽头光脉冲整形器组成的光脉冲整形器在每个子通道中用于对采样脉冲进行整形。对该方案的原理进行了理论分析和实验验证。通过对采样脉冲进行整形，实验测量了带宽为500 MHz、中心频率为7.5 GHz/8.5 GHz的信道响应。