Continuously Tunable Flat-Passband Microwave Photonic Notch Filter Based on Primary and Secondary Tap Distribution Impulse Response

IF 2.4 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC IEEE Photonics Journal Pub Date : 2015-01-19 DOI:10.1109/JPHOT.2015.2393874

Y. Wang;E. H. W. Chan;X. Wang;X. Feng;B. Guan

引用次数: 3

Abstract

A new microwave photonic signal processor that has the ability to realize a continuously tunable high-resolution notch filter response is presented. It is based on designing the filter impulse response to have a primary and secondary tap distribution. With a proper design on the tap amplitudes, the notch filter passband can be flattened. The filter notch frequency can be also continuously tuned by controlling the phase shift of the secondary taps via a diffraction-based Fourier-domain optical processor. The notch filter has a robust response and high signal-to-noise-ratio (SNR) performance. Experimental results demonstrate that the new microwave photonic notch filter can simultaneously realize a flat passband of only a 1-dB ripple, a large free spectral range of 4.7 GHz, and a notch depth of over 40 dB while tuning the notch frequency.

查看原文

微信好友朋友圈 QQ好友复制链接

本刊更多论文

基于初级和次级抽头分布脉冲响应的可连续调谐平带微波光子陷波滤波器

提出了一种新的微波光子信号处理器，该处理器能够实现连续可调的高分辨率陷波滤波器响应。它基于设计滤波器脉冲响应，以具有初级和次级抽头分布。通过对抽头幅度进行适当的设计，陷波滤波器通带可以被平坦化。滤波器陷波频率也可以通过基于衍射的傅立叶域光学处理器控制次级抽头的相移来连续调谐。陷波滤波器具有稳健的响应和高信噪比（SNR）性能。实验结果表明，这种新型微波光子陷波滤波器在调谐陷波频率的同时，可以同时实现只有1-dB纹波的平坦通带、4.7GHz的大自由光谱范围和超过40dB的陷波深度。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

求助全文

约1分钟内获得全文去求助

来源期刊

IEEE Photonics Journal ENGINEERING, ELECTRICAL & ELECTRONIC-OPTICS

CiteScore

4.50

自引率

8.30%

发文量

489

审稿时长

1.4 months

期刊介绍： Breakthroughs in the generation of light and in its control and utilization have given rise to the field of Photonics, a rapidly expanding area of science and technology with major technological and economic impact. Photonics integrates quantum electronics and optics to accelerate progress in the generation of novel photon sources and in their utilization in emerging applications at the micro and nano scales spanning from the far-infrared/THz to the x-ray region of the electromagnetic spectrum. IEEE Photonics Journal is an online-only journal dedicated to the rapid disclosure of top-quality peer-reviewed research at the forefront of all areas of photonics. Contributions addressing issues ranging from fundamental understanding to emerging technologies and applications are within the scope of the Journal. The Journal includes topics in: Photon sources from far infrared to X-rays, Photonics materials and engineered photonic structures, Integrated optics and optoelectronic, Ultrafast, attosecond, high field and short wavelength photonics, Biophotonics, including DNA photonics, Nanophotonics, Magnetophotonics, Fundamentals of light propagation and interaction; nonlinear effects, Optical data storage, Fiber optics and optical communications devices, systems, and technologies, Micro Opto Electro Mechanical Systems (MOEMS), Microwave photonics, Optical Sensors.