An arbitrarily shaped microwave source for ultra wideband radio communication using femtosecond laser pulse shaping

使用飞秒激光脉冲整形用于超宽带无线电通信的任意形状微波源

• 批准号: 17360168
• 负责人: KANNARI Fumihiko
• 金额: $ 9.92万
• 依托单位: Keio University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2005
• 资助国家: 日本
• 起止时间: 2005 至 2006
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-17360168/
• 关键词: Applied Optics・Quantum Optical Engineering; High Quality Lasers; Information Communication Engineering; Advanced Communication; Microwave; 高性能レーザ; フェムト秒パルスレーザー; 周波数領域波形整形; 超広帯域無線

Arbitrarily shaped microwave signal ranging from 3 to 20 GHz for ultra wideband (UWB) radio communication is constructed using spectrally shaped femtosecond laser pulses and their E-0 conversion with a fast photodiode. The shaped spectrum of the femtosecond laser pulse is proportionally transferred to the temporal shape by travelling through an optical fiber. The transfer functions of electrical devices in a transmission system including an UWB antenna, especially their group delay characteristics, can be compensated for by the launched laser pulse shape. The transmission of UWB-impulse signal ranging 3-6 GHz is successfully accomplished with a commercial UWB antenna apart at 50 cm.This arbitrarily shaped microwave source is useful to examine cross-talking with existent radio communication systems such as radio LAN for a specific UWB encoding, or to measure the response function of electric devices in the transmission system.

使用光谱形状的飞秒激光脉冲及其通过快速光电二极管进行的 E-0 转换，可构建用于超宽带 (UWB) 无线电通信的 3 至 20 GHz 任意形状的微波信号。飞秒激光脉冲的成形光谱通过光纤传播，按比例转换为时间形状。包括 UWB 天线在内的传输系统中电气设备的传递函数，特别是其群延迟特性，可以通过发射的激光脉冲形状进行补偿。使用相距 50 cm 的商用 UWB 天线成功完成了 3-6 GHz 范围内的 UWB 脉冲信号的传输。这种任意形状的微波源可用于检查与现有无线电通信系统（例如特定 UWB 的无线电 LAN）的串扰编码，或测量输电系统中电气设备的响应函数。

项目成果

Influence of spatiotemporal coupling induced by an ultrashort laser shaper on afocused beam profile

超短激光整形器引起的时空耦合对聚焦光束轮廓的影响

• 发表时间: 2005
• 期刊: Applied Optics Vol.44, No.6
• 作者: 水門善之;山本博資;T.Tanabe
• 通讯作者: T.Tanabe

フェムト秒テクノロジー(基礎と応用)

飞秒技术（基础与应用）

• 发表时间: 2006
• 作者: Y. Harada;T. Tokushima;Y. Takata;N. Kamakura;T. Takeuchi;K. Kobayashi;Y. Shirota;S. Shin;N. Otuka;T.Shirasawa;西澤典彦(共著)
• 通讯作者: 西澤典彦(共著)