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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 11,
  • Issue 3,
  • pp. 031403-
  • (2013)

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

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Abstract

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.

© 2013 Chinese Optics Letters

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