微波频率测量利用频率到时间的映射

2008 International Topical Meeting on Microwave Photonics jointly held with the 2008 Asia-Pacific Microwave Photonics Conference Pub Date : 2008-11-05 DOI:10.1109/MWP.2008.4666704

L. Nguyen

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引用次数: 7

摘要

提出并论证了一种新型微波光子频率测量接收机的概念。这种光子技术利用色散介质直接将入射微波信号的频率信息映射到时间延迟上。观测到的时间延迟的测量直接等于输入微波频率的值。测量了色散参数为1000 ps/nm的啁啾光纤光栅(FBG)的频时映射函数。在啁啾光纤光栅的群延迟纹波(GDR)范围内，测量值与理论值非常吻合。

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Microwave frequency measurement utilising frequency to time mapping

A novel microwave photonic frequency measurement (MPFM) receiver concept is proposed and demonstrated. This photonic technique directly maps the frequency information of the incoming microwave signal to a time delay utilising a dispersive medium. The measurement of the observed time delay directly equates to value of the input microwave frequency. The frequency-time mapping function from a chirped fiber Bragg grating (FBG) having a dispersion parameter of 1000 ps/nm was measured. Excellent agreement between measurement and theory is demonstrated within the bounds of the group delay ripple (GDR) of the chirped FBG.

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2008 International Topical Meeting on Microwave Photonics jointly held with the 2008 Asia-Pacific Microwave Photonics Conference

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