您的位置: 专家智库 > 资助详情>国家自然科学基金(60877056)

国家自然科学基金(60877056)

作品数:5 被引量:4H指数:1
相关作者:张新亮黄喜董建绩张羽黄德修更多>>
相关机构:华中科技大学更多>>
发文基金:国家自然科学基金国家重点基础研究发展计划国家高技术研究发展计划更多>>
相关领域:电子电信建筑科学理学机械工程更多>>

文献类型

  • 5篇中文期刊文章

领域

  • 5篇电子电信
  • 1篇机械工程
  • 1篇建筑科学
  • 1篇理学

主题

  • 2篇光放大
  • 2篇光放大器
  • 2篇放大器
  • 2篇半导体光放大...
  • 2篇SEMICO...
  • 2篇ALL-OP...
  • 1篇导光
  • 1篇调制
  • 1篇增益
  • 1篇增益调制
  • 1篇阵列
  • 1篇阵列波导
  • 1篇阵列波导光栅
  • 1篇同相
  • 1篇下一代
  • 1篇下一代光网络
  • 1篇相移键控
  • 1篇消光比
  • 1篇滤波器
  • 1篇码型

机构

  • 1篇华中科技大学

作者

  • 1篇黄德修
  • 1篇张羽
  • 1篇董建绩
  • 1篇黄喜
  • 1篇张新亮

传媒

  • 2篇Chines...
  • 2篇Scienc...
  • 1篇物理学报

年份

  • 1篇2013
  • 2篇2012
  • 2篇2010
5 条 记 录,以下是 1-5
排序方式:
Reconfigurable all-optical dual-directional half-subtractor for high-speed differential phase shift keying signal based on semiconductor optical amplifiers
2012年
All-optical digital logic elementary circuits are the building blocks of many important computational operations in future high-speed all-optical networks and computing systems. Multifunetional and reconfigurable logic units are essential in this respect. Employing the demodulation properties of delay interferometers for input differential phase shift keying signals and the gain saturation effect in two parallel semiconductor optical amplifiers, a novel design of 40 Cbit/s reconfigurable all-optical dual-directional half-subtractor is proposed and demonstrated. All output logic results show that the scheme achieves over 11=dB extinction ratio, clear and wide open eye diagram, as well as low polarization dependence (〈 1 dB), without using any additional input light beam. The scheme may provide a promising candidate for future ultrafast all-optical signal processing applications.
Zhang YinDong Jian-JiLei LeiZhang Xin-Liang
Measurement of the carrier recovery time in SOA based on four-wave mixing on narrow-band ASE spectrum
2010年
Carrier recovery time is a key parameter that determines the performance of a semiconductor optical amplifier (SOA). A measurement method of carrier recovery time in SOA based on a nearly degenerate four-wave mixing of narrowband amplified spontaneous emission (ASE) spectra is presented. The results show the carrier times are 50.2, 44.6, and 23.6 ps when the injected currents are 120, 180, and 240 mA, respectively, which are in agreement with the nominal values of the sample.
程乘张新亮张羽刘磊黄德修
Simultaneous multi-channel RZ-OOK/DPSK to NRZ-OOK/DPSK format conversion based on integrated delay interferometers and arrayed-waveguide grating被引量:1
2013年
Format conversion is enabling function at the interface of different networks with different optimal modulation formats.Meanwhile,multi-channel signal processing function has its special significance for dense wavelength division multiplexing networks.In this paper,we designed and fabricated a delay interferometer cascaded with an arrayed-waveguide grating based on silicon on insulator.The 4-channel return-to-zero on-off keying(RZ-OOK) to non-return-to-zero on-off keying(NRZ-OOK) and return-to-zero differential phase shift keying(RZ-DPSK) to non-return-to-zero differential phase shift keying(NRZ-DPSK) format conversions at 40 Gbit/s were realized with this integrated device,the output eye diagrams showed a good conversion performance.Thanks to the mature fabrication technology,this device shows great potential for its small size,low power consumption and possibility of monolithic integration.
XIANG LeiGAO DingShanZOU BingRongHU ShouJinZHANG XinLiang
关键词:阵列波导光栅干涉仪差分相移键控
基于半导体光放大器和光学滤波器的同相波长转换理论研究被引量:3
2010年
采用半导体光放大器(SOA)级联滤波器的方案可以实现高速全光波长转换,其中,滤波器实质上是对SOA输出信号的光谱进行优化操作.文中利用带通滤波器(BPF)和延时干涉仪(DI)组成的光谱优化器,不仅实现了80Gbit/s同相波长转换,而且基于遗传算法设计光谱优化器的参数,极大地提高了输出信号的质量.同时,也从理论上分析了SOA中超快带内效应对信号光谱的影响以及光谱优化器中BPF和DI的消光比对输出信号质量的影响.
黄喜张新亮董建绩张羽黄德修
关键词:半导体光放大器消光比码型效应
40-Gb/s all-optical digital 4-bit priority encoder employing cross-gain modulation in semiconductor optical amplifiers
2012年
High-speed all-optical logic circuits have attracted much attention because of their important roles in signal processing in next-generation optical networks.The digital encoder is widely used in binary calculation,multiplexing,demultiplexing,address recognition and data encryption.A priority encoder allows the existence of multiple valid inputs simultaneously,identifies the priority of the request signals and encodes the priority.We propose and experimentally demonstrate an all-optical 4-bit priority encoder for return-to-zero signals at 40 Gbit/s based on cross-gain modulation in semiconductor optical amplifiers.Detuning fil-ters after semiconductor optical amplifiers are employed to improve the output performance.Correct logic bit sequences and clear open eye patterns with extinction ratios exceeding 10 dB are achieved.
LEI Lei DONG JianJi ZHANG Yin YU Yu ZHANG XinLiang
关键词:半导体光放大器交叉增益调制下一代光网络
共1页<1>
聚类工具0