Photonic measurement of microwave frequency using a silicon microdisk resonator

被引：40
作者：
Liu, Li
Jiang, Fan
Yan, Siqi
Min, Shucun
He, Mengying
Gao, Dingshan
Dong, Jianji [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China
来源：
OPTICS COMMUNICATIONS | 2015年 / 335卷
基金：
中国国家自然科学基金;
关键词：
Microwave photonic filter (MU); Microclisk resonator (MDR); Microwave frequency measurement; Integrated optics; Optical microwave signal processing; MEASUREMENT SYSTEM; AMPLITUDE;
D O I：
10.1016/j.optcom.2014.09.030
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple photonic approach to the measurement of microwave signal frequency with adjustable measurement range and resolution is proposed and demonstrated. In this approach, the unknown microwave signal is converted to an optical signal with single sideband modulation. Subsequently, a notch microwave photonic filter (MPF) is implemented by employing a high-Q silicon microdisk resonator (MDR). The MPF is tunable by changing the frequency interval between the optical carrier and the MDR notch so as to obtain different amplitude responses. A fixed frequency-to-power mapping is established by obtaining an amplitude comparison function (ACF) of the microwave power ratio and the microwave frequency. A proof-of-concept experiment demonstrates a frequency measurement range of 10 with measurement error of +/- 0.1 GHz. Different frequency measurement ranges and resolutions are also discussed. (C) 2014 Elsevier B.V. All rights reserved.
引用
收藏
页码：266 / 270
页数：5
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