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ANALYSIS OF MICROWAVE PHOTONIC NOTCH FILTER WITH TUNABLE PARAMETERS

被引：0
|
作者：
Khosroabadi, Saeed [1 ]
Salehi, Mohammad Reza [1 ]
机构：
[1] Shiraz Univ Technol, Dept Elect & Elect Engn, Shiraz 71555, Iran
来源：
ICSPC: 2007 IEEE INTERNATIONAL CONFERENCE ON SIGNAL PROCESSING AND COMMUNICATIONS, VOLS 1-3, PROCEEDINGS | 2007年
关键词：
optical mixing; chirped Bragg grating; photonic microwave notch filter; optical filters;
D O I：
暂无
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
In this paper a tunable photonic notch filter based on all-optical mixing using a single narrow-linewidth optical source and a variable time delay line is presented. In the proposed filter, the optical carrier emitted from a laser source is externally intensity modulated by a subcarrier signal and then applied to a second intensity modulator. By using a variable polarization beamsplitter, a Hi-Bi coupler, a variable time delay line; a two-tap photonic microwave notch filter with a tunable free spectral range (FSR) is numerically demonstrated. An expression for the filter transfer function is derived. Numerical results show a notch rejection greater than 30 dB.
引用
收藏
页码：860 / 863
页数：4
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