Tb/s Optical Logic Gates Based on Quantum-Dot Semiconductor Optical Amplifiers

被引：88
|
作者：
Rostami, Ali [1 ,2 ]
Nejad, Hamed Baghban Asghari [1 ]
Qartavol, Reza Maram [1 ]
Saghai, Hassan Rasooli [2 ]
机构：
[1] Univ Tabriz, Fac Elect & Comp Engn, PNRL, Tabriz 51664, Iran
[2] Univ Tabriz, Sch Engn Emerging Technol, Tabriz 51664, Iran
来源：
IEEE JOURNAL OF QUANTUM ELECTRONICS | 2010年 / 46卷 / 03期
关键词：
All-optical processing; control pulse; quantum-dot (QD) amplifier; Tb/s optical gate; WAVELENGTH CONVERSION; GAIN-SATURATION; PERFORMANCE; XOR; MODULATION; RECOVERY; SIGNAL; CHIRP;
D O I：
10.1109/JQE.2009.2033253
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：
The performance of an ultrafast all-optical logic gate based on quantum-dot semiconductor optical amplifier (QD-SOA) has been theoretically analyzed in this paper. We introduce a novel approach to accelerate the gain recovery process with a control pulse (CP) using the cross-gain modulation (XGM) effect. It is shown that the optical XOR gate in a Mach-Zehnder interferometer- based structure is feasible at Tb/s speeds with proper quality factor. The operation capability at 2.5 Tb/s with Q-factor of 4.9 and 2 Tb/s with Q-factor of 8.8 is reported for the first time. This capability indicates great potential for ultrafast all-optical signal processing and switching.
引用
收藏
页码：354 / 360
页数：7
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