Communication band becomes more and more crowded, terahertz (THz) technology can obtain more than 300GHz frequency, and easy to obtain the transmission rate of Gbit/s. This paper reports a kind of wide-band THz communication based on a THz time domain spectroscopy (TDS) system, which uses photoconductive antenna as a THz source, ZnTe crystal as a receiver. In our experiment, the modulation mode is the on-off keying (OOK) [1] method based on amplitude-shift keying (ASK) [2].An audio signal was generated by program, and we put the signal into a voltage amplifier and increase the peak-to-peak voltage, which was used as a bias voltage on the photoconductive antenna. Then the signal to noise ratio of the received audio signal is 51.4. The wide-band terahertz communication on ambient atmosphere was demonstrated on a THz time domain spectroscopy system. The received signal has the same spectrum with the original audio signal, but noisier than the original signal.

© 2014 Optical Society of America

PDF Article
More Like This
Trapping of terahertz waves in a wide bandwidth

XiaoFei Zang and YiMing Zhu
TuS4_2 International Symposium on Ultrafast Phenomena and Terahertz Waves (ISUPTW) 2014

Research of coldrex in the terahertz band

Wu Shuang and Li Jiu-sheng
AS3A.8 Advanced Spectroscopy and Applications (ASA) 2017

Industrial Applications of Terahertz Technology: from Layer Thickness Measurements to Mail Screening

René Beigang
AW1A.2 Applied Industrial Optics: Spectroscopy, Imaging and Metrology (AIO) 2014


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription