Implementation of Broadband Microwave Arbitrary-Order Time Differential Operators Using a Reconfigurable Incoherent Photonic Processor

被引：24
作者：
Park, Yongwoo [1 ]
Asghari, Mohammad H. [1 ]
Helsten, Robin [1 ]
Azana, Jose [1 ]
机构：
[1] INRS EMT, Montreal, PQ H5A 1K6, Canada
来源：
IEEE PHOTONICS JOURNAL | 2010年 / 2卷 / 06期
基金：
加拿大自然科学与工程研究理事会;
关键词：
Fiber optics systems; optical communications; microwave photonics signal processing; SEMICONDUCTOR OPTICAL AMPLIFIER; PERIOD FIBER GRATINGS; CROSS-GAIN MODULATION; TEMPORAL DIFFERENTIATORS; GENERATION; FILTER; PICOSECOND; PULSES; MONOCYCLE; 1ST-ORDER;
D O I：
10.1109/JPHOT.2010.2091115
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 reconfigurable photonic signal processing system for arbitrary-order temporal differentiation of broadband microwave waveforms, with bandwidths up to a few tens of gigahertz, is proposed and experimentally demonstrated. This technique enables full programmability of the differentiation operator to be applied on the input microwave signal, including any desired linear differential-equation operator, by suitably reshaping the incoherent power spectrum according to the corresponding finite-difference time-domain (FDTD) equations obtained from the Euler's approximation. Successive photonic time derivatives of Gaussian-like pulse intensity waveforms with pulse widths of 42 and 72 ps were accurately achieved up to the second and the fourth order, respectively, using the same photonic processing platform. A more general operator, conceived to directly emulate the secondorder differential-equation modeling a high-frequency series resistor, inductor, and capacitor (RLC) circuit, was also implemented and successfully tested.
引用
收藏
页码：1040 / 1050
页数：11
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