| 基于双半导体光放大器的读/写分别控制的新型全光缓存器 |
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| 引用本文： | 张立军,吴重庆,李亚捷.基于双半导体光放大器的读/写分别控制的新型全光缓存器[J].光学学报,2007,27(11):1945-1949. |
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| 作者姓名： | 张立军 吴重庆 李亚捷 |
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| 作者单位： | 北京交通大学理学院光信息科学与技术研究所发光与光信息技术教育部重点实验室,北京,100044 |
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| 基金项目： | 国家自然科学基金(60577020,60672004)资助课题 |
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| 摘 要： | 全光缓存器能够在光域内对数据包进行缓存,解决数据包在节点的冲突。提出了一种新型可擦写的全光缓存器,该缓存器以半导体光放大器(SOA)为非线性相移器件,利用信号光和控制光在半导体光放大器中的交叉相位调制实现信号在光域内的"写入"和"读出"。在注入信号峰值功率相同的条件下,双半导体光放大器结构的采用还可以对信号光实现功率补偿,比利用单个半导体光放大器进行"写入/读出"控制延长了缓存时间,并能有效克服在数据包"写入"缓存器时造成的输出端口处信号光的泄漏。该缓存器顺利实现了2.5 Gb/s数据包的多圈缓存。
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| 关 键 词： | 光通信 全光缓存器 3×3平行排列耦合器 半导体光放大器 交叉相位调制 |
| 文章编号： | 0253-2239（2007）11-1945-5 |
| 收稿时间： | 2007/2/5 |
| 修稿时间： | 2007-02-05 |
Novel Read/Write Independently Controlled All-Optical Buffer Based on Dual-Semiconductor Optical Amplifier |
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| Zhang Lijun,Wu Chongqing,Li Yajie.Novel Read/Write Independently Controlled All-Optical Buffer Based on Dual-Semiconductor Optical Amplifier[J].Acta Optica Sinica,2007,27(11):1945-1949. |
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| Authors: | Zhang Lijun Wu Chongqing Li Yajie |
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| Institution: | Key Laboratory of Luminescence and Optical Information, EMC, Institute of Optical Information, Beijing Jiaotong University, Beijing 100044 |
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| Abstract: | All-optical buffer can store the packet,which can solve the problem of node collision when transmitting packets in optical domain,and will become an important element in all-optical network.This paper presents a novel erasable all-optical buffer which realizes the "write" and "read" function.Two semiconductor optical amplifiers(SOA) which are used as the nonlinearity element can also compensate the power attenuation at the same time.Compared with the single semiconductor optical amplifier configuration,the storage time is prolonged greatly when the same signal power is introduced.This configuration can overcome the "packet leakage" effectively on the output port because of the "write" operation.The buffer can store the packet transmitting at the speed of 2.5 Gb/s successfully. |
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| Keywords: | optical communication all-optical buffer 3 × 3 collinear fiber coupler semiconductor optical amplifier cross-phase modulation |
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