Wideband tunable single bandpass microwave photonic filter based on FWM dynamics of optical-injected DFB laser

Wideband tunable single bandpass microwave photonic filter based on FWM dynamics of optical-injected DFB laser
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基于光注入DFB激光器FWM动力学的宽带可调谐单带通微波光子滤波器

DOI:
10.1049/el.2015.1696
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发表时间:
2016-01
影响因子:
1.1
通讯作者:
Pu Tao
Pu Tao
中科院分区:
工程技术4区
文献类型:
--
作者:
Zhang Tingting;Xiong Jintian;Zheng Jilin;Chen Xiangfei;Pu Tao

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提出了一种基于光注入下分布反馈(DFB)半导体激光器四波混频(FWM)非线性动力学特性的宽带可调谐单通带微波光子滤波器(MPF),并进行了实验验证。利用光注入DFB激光器的波长选择性光学增益,获得相位调制到强度调制的转换,从而实现单带通MPF。通过改变注入参数,获得了频率调谐范围为27.72GHz的MPF。最小3 dB带宽和带外抑制比分别为61.2 MHz和25 dB。
A wideband tunable single bandpass microwave photonic filter (MPF) based on the four-wave mixing (FWM) nonlinear dynamics of a distributed feedback (DFB) semiconductor laser under optical injection is proposed and experimentally demonstrated. Utilising the wavelength-selective optical gain of the optical-injected DFB laser, phase-modulation to intensity-modulation conversion is obtained, leading to the realisation of a single bandpass MPF. By changing the injection parameters, an MPF with a frequency tuning range of 27.72 GHz has been achieved. The minimum 3 dB bandwidth and the out-of-band suppression ratio are measured to be 61.2 MHz and 25 dB, respectively.
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