Telecommunications technology-based terahertz sources

被引：17

作者：

Fice, M. J. ^{[1
]}

Rouvalis, E. ^{[1
]}

Ponnampalam, L. ^{[1
]}

Renaud, C. C. ^{[1
]}

Seeds, A. J. ^{[1
]}

机构：

[1] UCL, Dept Elect & Elect Engn, London WC1E 7JE, England

来源：

ELECTRONICS LETTERS | 2010年 / 46卷 / 26期

基金：

英国工程与自然科学研究理事会;

关键词：

TRAVELING-CARRIER PHOTODIODE; MU-M; HIGH-SPEED; GENERATION; BANDWIDTH; POWER;

D O I：

10.1049/el.2010.1917

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A review is presented of continuous-wave terahertz sources based on the optical heterodyne generation (photomixing) technique, that make use of optical components and fabrication techniques originally developed for the 1550 nm optical fibre telecommunications window. The uni-travelling carrier photodiode is identified as a key component for conversion of optical to terahertz power, and the state of the art is summarised in terms of terahertz power generated at various frequencies. An approach based on phase locking the heterodyned lasers is described, which enables terahertz signals to be generated with extremely high spectral purity and frequency accuracy, and progress in developing the photonic integrated circuits required for its implementation is reported. Finally, possible future developments in the field are discussed.

引用

页码：S28 / S31

页数：4

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