Wireless terahertz light transmission based on digitally-modulated terahertz quantum-cascade laser

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2013,（3）
• 页码范围: 38-40
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201311.031403

摘要

A wireless terahertz digital transmission link is demonstrated,in which a quantum-cascade laser and a spectrally-matched quantum-well photodetector serve as the emitter and receiver,respectively.An on-off modulation scheme is used.By directly amplitude modulating the laser emitting at 4.13 THz,a 1.0-Mbps pseudorandom signal is transmitted over a distance of 2.2 m.