Chinese Optics Letters, Volume. 11, Issue 11, 112001(2013)
Real-time video signal transmission over a terahertz communication link
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.
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Zhen Chen, Li Gu, Zhiyong Tan, Chang Wang, Juncheng Cao. Real-time video signal transmission over a terahertz communication link[J]. Chinese Optics Letters, 2013, 11(11): 112001
Category: Optics in Computing
Received: Jul. 11, 2013
Accepted: Sep. 4, 2013
Published Online: Nov. 25, 2013
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