A calibration approach for terahertz wave measurements at frequencies from 0.11 THz to 0.17 THz

Xue-feng Wang; Jian-guo Wang; Guang-qiang Wang; Chang-jiang Tong; Shuang Li

doi:10.1117/12.2032317

23 August 2013 A calibration approach for terahertz wave measurements at frequencies from 0.11 THz to 0.17 THz

Xue-feng Wang, Jian-guo Wang, Guang-qiang Wang, Chang-jiang Tong, Shuang Li

Proceedings Volume 8909, International Symposium on Photoelectronic Detection and Imaging 2013: Terahertz Technologies and Applications; 890905 (2013) https://doi.org/10.1117/12.2032317
Event: ISPDI 2013 - Fifth International Symposium on Photoelectronic Detection and Imaging, 2013, Beijing, China

Abstract

This paper has successfully setup a calibration system for terahertz devices at frequencies from 0.11 THz to 0.17 THz in waveguide WR6.5. The system consists of a terahertz wave generator, a power meter, a digital oscilloscope and a computer, and is able to accomplish calibrations for some devices automatically. Calibrations of a 10 dB attenuator, a 20 dB directional coupler, and a Schottky diode detector are carried out by the system and a detailed discussion is given to the results. The results obtained have shown that the characteristics of the devices under calibrated remained essentially the same throughout the experiment and met rather good agreement to the factory data. Due to the use of GPIB, it is proved that the system can also improve the efficiency of work greatly. The calibration approach described in this paper can be a necessary supplement to the other calibration techniques and play an important role in terahertz measurement especially at lower frequencies.

Citation Download Citation

Xue-feng Wang, Jian-guo Wang, Guang-qiang Wang, Chang-jiang Tong, and Shuang Li "A calibration approach for terahertz wave measurements at frequencies from 0.11 THz to 0.17 THz", Proc. SPIE 8909, International Symposium on Photoelectronic Detection and Imaging 2013: Terahertz Technologies and Applications, 890905 (23 August 2013); https://doi.org/10.1117/12.2032317

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