Tunable photonic microwave bandpass filter with negative coefficients implemented using an optical phase modulator and chirped fiber Bragg gratings

被引：21
|
作者：
Yan, Yu [1 ]
Blais, Sebastien R. [1 ]
Yao, Jianping [1 ]
机构：
[1] Univ Ottawa, Sch Informat Technol & Engn, Microwave Photon Res Lab, Ottawa, ON K1N 6N5, Canada
来源：
JOURNAL OF LIGHTWAVE TECHNOLOGY | 2007年 / 25卷 / 11期
基金：
加拿大自然科学与工程研究理事会;
关键词：
chirped fiber Bragg grating (CFBG); electrooptic phase modulation; microwave photonics; phase-modulation to intensity-modulation (PM-IM) conversion; photonic microwave filter;
D O I：
10.1109/JLT.2007.906821
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A continuously tunable photonic rnicrowave bandpass filter with positive and negative coefficients implemented using an optical phase modulator and chirped fiber Bragg gratings (FBGs) is proposed and experimentally demonstrated. The positive and negative coefficients are generated through optical phase-modulation to intensity-modulation conversion by reflecting the phase-modulated optical carrier from linearly chirped FBGs (LCFBGs) with positive and negative dispersions. The tunability of the filter is realized by changing the wavelength of the optical carrier such that it is reflected at different physical locations in the LCFBGs. A two-tap microwave bandpass filter with a free spectral range tunable from 1.14 to 4.55 GHz is experimentally demonstrated.
引用
收藏
页码：3283 / 3288
页数：6
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