Low-Complexity TOAD-Based All-Optical Sampling Gate With Ultralow Switching Energy and High Linearity

被引：9
作者：
Li, P. [1 ,2 ]
Jiang, L. [1 ,2 ]
Zhang, J. G. [1 ,2 ]
Zhang, J. Z. [1 ,2 ]
Wang, Y. C. [1 ,2 ]
机构：
[1] Minist Educ & Shanxi Prov, Key Lab Adv Transducers & Intelligent Control Sys, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Coll Phys & Optoelect, Inst Optoelect Engn, Taiyuan 030024, Peoples R China
来源：
IEEE PHOTONICS JOURNAL | 2015年 / 7卷 / 04期
基金：
中国国家自然科学基金;
关键词：
All-optical sampling; semiconductor optical amplifier; optical signal processing; EYE-DIAGRAM MEASUREMENT; AMPLIFIER; FIBER; RESOLUTION; SYSTEM; INTERFEROMETER; WAVELENGTHS; CRYSTAL; PULSES; SCHEME;
D O I：
10.1109/JPHOT.2015.2459377
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：
We present experimentally a low-complexity ultralow switching energy and high-linearity all-optical sampling gate based on a terahertz optical asymmetric demultiplexer, constructed by placing a polarization-insensitive multiple-quantum-well semiconductor optical amplifier (PI-MQW-SOA) asymmetrically within a fiber loop mirror. Using a picosecond pulse train as the trigger clock, we analyze, in detail, the influence of the sampling pulse power and the offset of the PI-MQW-SOA from the loop midpoint on the shape, width, and amplitude of the sampling window, respectively. Furthermore, the switching energy and linearity of this sampling gate under different widths of sampling windows are specifically investigated. Results demonstrate that our sampling gate possesses a switching energy as low as 25 fJ and a high linearity above 0.99.
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页数：8
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