Development of millimeter/sub-millimeter radio-astronomy heterodyne detection system using photonics technology.

利用光子技术开发毫米/亚毫米射电天文外差探测系统。

• 批准号: 12354001
• 负责人: ISHIGURO Masato
• 金额: $ 29.99万
• 依托单位: National Astronomical Observatory
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2000
• 资助国家: 日本
• 起止时间: 2000 至 2002
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-12354001/
• 关键词: photonic local oscillator; laser; photomixer; UTC-PD; radio astoronomy; heterodyne; sub-millimeter wave; millimeter wave; ALMA; 電波天文学; LMSA

We have developed a millimeter and submillimeter wavelength photomixer using a uni-traveling-carrier photodiode (UTC-PD). The UTC-PD, which is developed by NTT, has higher saturation output while maintaining fast response. Output power of the photomixer is as same as 2mW around 100GHz. We have demonstrated that the photomixer can be used as a local oscillator source for a radio astronomy receiver. The excess noise of the photonic local oscillator compared with that of a Gunn diode was measured to be less than a few K. A CS J=2-1 line at 98GHz was observed toward a high-mass star-forming region W51 using the photonic local oscillator and a Gunn oscillator. The spectra obtained with the photonic local oscillator and the conventional Gunn local oscillator are quantitatively consistent with each other.

我们研制了一种使用单载流子光电二极管(UTC-PD)的毫米波和亚毫米波长光混合器。NTT公司开发的UTC-PD在保持快速响应的同时，具有较高的饱和输出。在100 GHz附近，光混合器的输出功率为2 mW。我们已经证明，光电混合器可以用作射电天文接收器的本机振荡源。用光子本机振荡器和体效应振荡器在高质量恒星形成区W51处观测到了98 GHz的CSJ=2-1谱线。用光子本振和传统的Gunn本振得到的光谱在定量上是一致的。

项目成果

T.Yamamoto et al.: "270-360 GHz tunable beat signal light generator for photonic local oscillator"Electron.Lett.. 38. 795-797 (2002)

T.Yamamoto 等人：“用于光子本地振荡器的 270-360 GHz 可调谐拍频信号光发生器”Electron.Lett.. 38. 795-797 (2002)

T.Noguchi, A.Ueda, et al.: "Millimeter Wave Generation Using A Uni-Traveling-Carrier Photodiode"Proc.13^<th> Int.Symp.Space Terahertz Technology. (印刷中). (2003)

T.Noguchi、A.Ueda 等人：“使用单行进载波光电二极管生成毫米波”Proc.13^<th> Int.Symp.Space 太赫兹技术（2003 年出版）。

Ultra-Low Noise Photonic Local Oscillator at 100 GHz

• DOI: 10.1143/jjap.42.l704
• 发表时间: 2003-06
• 期刊: Japanese Journal of Applied Physics
• 影响因子: 1.5
• 作者: A. Ueda;T. Noguchi;S. Asayama;H. Iwashita;Y. Sekimoto;M. Ishiguro;Hiroshi Ito;T. Nagatsuma;A. Hirata;W. Shillue

W-band waveguide photomixer using a uni-traveling-carrier photodiode with 2mW output

使用具有 2mW 输出的单行载流子光电二极管的 W 波段波导光电混频器

• 发表时间: 2003
• 期刊: IEEE MTT Transactions 51,5
• 作者: A.Ueda;T.Noguchi;et al.
• 通讯作者: et al.

T.Noguchi, H.Maezawa, et al.: "Nb-Based SIS Mixer in the 800GHz Band"IEEE Trans.Appl.Supercond. 11. 167-170 (2001)

T.Noguchi、H.Maezawa 等人：“800GHz 频段基于 Nb 的 SIS 混频器”IEEE Trans.Appl.Supercond。