微波食品加热
炸薯条
光子学
材料科学
布里渊散射
滤波器(信号处理)
航程(航空)
光电子学
布里渊区
光学
电子工程
光纤
物理
电气工程
计算机科学
工程类
电信
复合材料
作者
Hengyun Jiang,David Marpaung,Mattia Pagani,Khu Vu,Duk‐Yong Choi,Steve Madden,Lianshan Yan,Benjamin J. Eggleton
出处
期刊:Optica
[The Optical Society]
日期:2016-01-07
卷期号:3 (1): 30-30
被引量:98
标识
DOI:10.1364/optica.3.000030
摘要
Spectrum analysis is a key functionality in modern radio frequency (RF) systems. In particular, fast and accurate estimation of multiple unknown RF signal frequencies over a wide measurement range is crucial in defense applications. Although photonic techniques benefit from an enhanced frequency estimation range along with reduced size and weight relative to their RF counterparts, they have been limited by a fundamental trade-off between measurement range and accuracy. Here, we circumvent this trade-off by harnessing the photon and phonon interactions in a photonic chip through stimulated Brillouin scattering, resulting in an accurate estimation of multiple RFs of up to 38 GHz with a record-low error of 1 MHz.
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