Tunable microwave photonic notch filter based on sliced broadband optical source

被引：10
|
作者：
Yu, Yang [1 ]
Li, Shangyuan [1 ]
Zheng, Xiaoping [1 ]
Zhang, Hanyi [1 ]
Zhou, Bingkun [1 ]
机构：
[1] Tsinghua Univ, Tsinghua Natl Lab Informat Sci & Technol, Dept Elect Engn, Beijing 100084, Peoples R China
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 19期
基金：
中国国家自然科学基金;
关键词：
FIBER BRAGG GRATINGS; COMPENSATION;
D O I：
10.1364/OE.23.024308
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A microwave photonic filter is demonstrated with both tunable center frequency and bandwidth. This filter is switchable from all-pass, bandpass to notch filter, and the notch filter is a result of the subtraction of a bandpass filter from an all-pass filter based on a balanced photodetector. The all-pass filter is achieved based on a single wavelength radio over fiber link, and the bandpass one is acquired by using the spectrum-sliced broadband optical source. Theoretical analysis and experimental results show that both the center frequency and the bandwidth of the notch filter can be widely tuned. (C) 2015 Optical Society of America
引用
收藏
页码：24308 / 24316
页数：9
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