All-optical coherence-free microwave filter with switchable passbands based on phase and intensity hybrid modulation

被引：4
|
作者：
Zhu, Kun [1 ]
Ou, Haiyan [1 ]
Ye, Chenhui [1 ]
Fu, Hongyan [1 ]
He, Sailing [1 ,2 ]
机构：
[1] Zhejiang Univ, State Key Lab Modern Opt Instrumentat, Ctr Opt & Electromagnet Res, Hangzhou 310058, Zhejiang, Peoples R China
[2] Royal Inst Technol, Sch Elect Engn, Div Electromagnet Engn, S-10044 Stockholm, Sweden
来源：
OPTICS COMMUNICATIONS | 2011年 / 284卷 / 01期
关键词：
Microwave photonics; Optical signal processing; Microwave filter; Phase and intensity hybrid modulation; Switchable passbands; PHOTONIC NOTCH FILTER; SINGLE-SIDE-BAND; NEGATIVE COEFFICIENTS;
D O I：
10.1016/j.optcom.2010.09.023
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A simple all-optical coherence-free microwave notch filter is proposed and experimentally demonstrated. The filter with switchable passbands is based on a single-wavelength optical source and phase-intensity hybrid modulation scheme. The DC bias voltage applied to the Mach-Zehnder intensity modulator can be adjusted to switch signs of the tap coefficients, which affect the baseband response. Both lowpass and bandpass filtering responses are observed in the experiment and agree well with the simulated results. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：140 / 143
页数：4
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