Opt Lett. 2013 Nov 15;38(22):4781-4. doi: 10.1364/OL.38.004781.
A serial photonic channelized radio frequency (RF) measurement scheme is proposed and experimentally demonstrated. This scheme can be used for instantaneous multiple-frequency measurement and capturing key parameters of linear frequency modulation signals. Based on high-speed wavelength scanning, this photonic RF channelizer works serially in time domain, and each wavelength labels a certain RF channel. With only one low-bandwidth photodetector (PD), we can implement multiple channel RF frequency measurements, which have a much simpler structure compared with parallel channelized schemes using broadband filter-bank and multiple PDs.
提出并实验验证了一种串行光子射频(RF)测量方案。该方案可用于瞬时多频率测量和捕获线性调频信号的关键参数。基于高速波长扫描,这种光子 RF 分路器在时域中串行工作,每个波长标记一个特定的 RF 信道。仅使用一个低带宽光电探测器(PD),我们就可以实现多个信道 RF 频率测量,与使用宽带滤波器组和多个 PD 的并行分路方案相比,其结构要简单得多。