All-optical binary counter based on semiconductor optical amplifiers

被引：18
|
作者：
Wang, Jing [1 ]
Meloni, Gianluca [2 ]
Berrettini, Gianluca [3 ]
Poti, Luca [2 ]
Bogoni, Antonella [2 ]
机构：
[1] Tsinghua Univ, Dept Elect Engn, Beijing 100084, Peoples R China
[2] Consurzio Nazl Interuniv Telecomunicaz, Natl Lab Photon Networks, I-56124 Pisa, Italy
[3] Scuola Super Sant Anna, I-56124 Pisa, Italy
来源：
OPTICS LETTERS | 2009年 / 34卷 / 22期
关键词：
DIRECTIONAL COUPLER SWITCHES;
D O I：
10.1364/OL.34.003517
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A cascadable all-optical binary counter is demonstrated by using optical flip flops and logic gates based on semiconductor optical amplifiers. Two-bit counting operation as well as optical-frequency division at two different frequencies is presented. The proposed scheme is tunable in the entire C-band and can work at different counting rates without any reconfiguration. Performance evaluations in terms of Q factor confirm the effectiveness of the scheme in cascadable configurations. Counting-speed limitation is investigated, and photonic integration is identified as a feasible solution to increase the functioning rate beyond gigahertz. (C) 2009 Optical Society of America
引用
收藏
页码：3517 / 3519
页数：3
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