论文标题
使用波导斑点的基于光子积分电路的压缩传感射频接收器
A Photonic Integrated Circuit based Compressive Sensing Radio Frequency Receiver Using Waveguide Speckle
论文作者
论文摘要
由11厘米多模斑点波导，1x32分离器和线性光栅耦合器阵列组成的光子积分电路（PIC），用于使用可调节感应（CS）从2.5到4.5 GHz接收2 GHz的射频信号（RF）信号带宽。传入的RF信号被调制到chir的光脉冲上，该光脉冲输入了多模型波导。多模波导通过光学斑点产生CS所需的随机投影。使用标准惩罚$ L_1 $ -NOMM方法成功恢复了两个测试RF信号的时变阶段和幅度。被动图片的使用是迈向压缩感应RF接收器的小型化的第一步。
A photonic integrated circuit (PIC) comprised of an 11 cm multimode speckle waveguide, a 1x32 splitter, and a linear grating coupler array is fabricated and utilized to receive 2 GHz of radio-frequency (RF) signal bandwidth from 2.5 to 4.5 GHz using compressive sensing (CS). Incoming RF signals are modulated onto chirped optical pulses which are input to the multimode waveguide. The multimode waveguide produces the random projections needed for CS via optical speckle. The time-varying phase and amplitude of two test RF signals between 2.5 and 4.5 GHz are successfully recovered using the standard penalized $l_1$-norm method. The use of a passive PIC serves as an initial step towards the miniaturization of a compressive sensing RF receiver.
