Ultrafast Photonics

超快光子学

• 批准号: 08305001
• 负责人: KAMIYA Takeshi
• 金额: $ 4.86万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1996
• 资助国家: 日本
• 起止时间: 1996 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-08305001/
• 关键词: laser; optical fiber; femtosecond; optical pulse; optical comunication; optical measurements; semiconductor laser; nonlinear optics; レーザ; フェムト秒; フォトニクス; 光物性; 光デバイス

Collaborative research on ultrafast photonics which is one of the leading edge topics of photonics is organized with active university researchers as members. Typical achievements are summarized : Prof.M.Yamashita proposed a scheme of generating monocycle optical pulse by broadening optical spectra using nonlinear optical effect ; Prof.H.Ito generated efficiently coherent THz radiation via parametric oscillator pumped by visible laser using quasi-phase matching techuique ; Prof.K.Kikuchi calrified the condition of dispersion compensation usng mid-way spectral conversion by four wave mixing for the case of ultra-long distance fiber-optic trans-oceanic transmission system with multiple wavelength ; T.Kamiya improved semicoductor-laser-based femtosecond pulse source and also proposed a new all optical signal conversion scheme using nonlinear fiber-optic switch. M.Tsuchiya discovered the subharmonic synchronization of mode-locked semiconductor laser by means of rf signal injection and discussed its application to milliwave photonic network. F.Koyama improved the characteristics of vertical cavity semiconductor lasers (VCSELs), with special emphasis on polarization stabilization. S.Noda investigated the control of interband transition in semiconductor quantum wells via intersubband optical transition. Using free electron laser pump, ultrafast optical switching capability was demonstrated. T.Kobayashi extended the idea of controlling temporal waveform by the control of spectrum and discussed the merits of different apporaches.

超快光子学的协作研究是光子学的前沿课题之一，由活跃的大学研究人员组成。主要成果有：山下M.Yamashita教授提出了利用非线性光学效应展宽光谱产生单周期光脉冲的方案；H.Ito教授利用准相位匹配技术在可见光泵浦下通过参量振荡器产生高效的相干THz辐射；K.Kikuchi教授针对多波长超长距离光纤跨洋传输系统的情况，计算了四波混频实现色散补偿的条件；T.Kamiya教授改进了基于半导体激光器的飞秒脉冲光源，并提出了一种新的基于非线性光纤开关的全光信号转换方案。M.Tsuhiya利用射频信号注入的方法发现了锁模半导体激光器的亚谐同步，并讨论了它在毫米波光子网络中的应用。F.Koyama改进了垂直腔半导体激光器(VCSEL)的特性，特别强调了偏振稳定。S.Noda研究了通过子带间光学跃迁控制半导体量子阱中的带间跃迁。利用自由电子激光泵浦，展示了超快光开关能力。T.Kobayashi推广了通过控制频谱来控制时间波形的思想，并讨论了不同分配方法的优点。

项目成果

T.Saito: "Femtosecond Dynamics of Nonresonant Third-order optical Nonlinearity of 1-(3-thienyl)-3-(4-chlorophenyl)propene-1-one Crystal and Solution" Japanese Journal of Applied Physics. No.9A Vol.35. 4649-4653 (1996)

T.Saito：“1-(3-噻吩基)-3-(4-氯苯基)丙烯-1-酮晶体和溶液的非共振三阶光学非线性的飞秒动力学”日本应用物理学杂志。

K.S.Abedin: "Integrated Intracavity Quasi-phase-matched Second Harmonic Generation Based on Periodically Poled Nd:LiTaO3" Applied Physics Letters. No.1 Vol.70. 10-12 (1997)

K.S.Abedin：“基于周期性极化 Nd:LiTaO3 的集成腔内准相位匹配二次谐波生成”应用物理快报。

K.Kawase, M.Sato et al.: "Unidirectional radiation of widely tunable THz wave using a prism coupler under noncollinear phase matching condition" Appl.Phys.Lett.Vol.71 no.6. 753-755 (1997)

K.Kawase、M.Sato 等人：“在非共线相位匹配条件下使用棱镜耦合器进行广泛可调太赫兹波的单向辐射”Appl.Phys.Lett.Vol.71 no.6。

T.Asano, S.Noda et al.: "Investigation of short wavelength intersubband transitions in InGaAs/AlAs quantum wells on GaAs substrate" Journal of applied Physics. Vol.82 no.7. 3385-3391 (1997)

T.Asano、S.Noda 等人：“GaAs 衬底上 InGaAs/AlAs 量子阱中短波长子带间跃迁的研究”应用物理学杂志。

T.Asano, S.Noda et al.: "Inverstigation of short wavelength intersubband transition in InGaAs/AlAs quantum wells on GaAs substrate" Journal of applied Physics. Vol.82 no.7. 3385-3391 (1997)

T.Asano、S.Noda 等人：“GaAs 衬底上 InGaAs/AlAs 量子阱中短波长子带间跃迁的研究”应用物理学杂志。