Real-time video signal transmission over a terahertz communication link

被引：16

作者：

Chen, Zhen ^{[1
]}

Gu, Li ^{[1
]}

Tan, Zhiyong ^{[1
]}

Wang, Chang ^{[1
]}

Cao, Juncheng ^{[1
]}

机构：

[1] Chinese Acad Sci, Shanghai Inst Microsyst & Informat Technol, Key Lab Terahertz Solid State Technol, Shanghai 200050, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2013年 / 11卷 / 11期

基金：

中国国家自然科学基金;

关键词：

QUANTUM-WELL PHOTODETECTOR;

D O I：

10.3788/COL201311.112001

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A 2.4-m communication link operating at 3.9 THz based on a terahertz quantum cascade laser and a terahertz quantum well photodetector (THz QWP) are introduced. The lumped electrical models of THz QWP for small signals are presented. A discussion of the bandwidth limit of the detecting circuit is presented. Using direct on - off-keying modulation and intensity detection, the transmission of digital video signal with a data rate of 2.5 Mb/s is demonstrated. Pseudo-random binary sequences are transmitted to investigate the bit-error rate (BER) at different rates. Result shows the error free transmission when the rate is below 5 Mb/s.

引用

页数：3