Terahertz wave polarization beam splitter with parallel waveguide structure

Abstract

The invention discloses a terahertz wave polarization beam splitter with a parallel waveguide structure. The terahertz wave polarization beam splitter includes a signal input terminal, a first signal output terminal, a second signal output terminal, a first rectangular waveguide, a second rectangular waveguide, a third rectangular waveguide, a fourth rectangular waveguide, a fifth rectangular waveguide, a Six rectangular waveguides; the lower surface of the first rectangular waveguide is connected with the upper surface of the second rectangular waveguide, the upper surface of the third rectangular waveguide is connected with the lower surface of the second rectangular waveguide, the lower surface of the fourth rectangular waveguide is connected with the fifth rectangular waveguide The upper surface of the sixth rectangular waveguide is connected to the lower surface of the fifth rectangular waveguide, the first rectangular waveguide and the fourth rectangular waveguide are placed in parallel with the length of the rectangular waveguide as the parallel side; the signal is input horizontally from the signal input end, The first signal output end outputs TE wave, and the second signal output end outputs TM wave, so as to obtain polarization beam splitting performance. The invention has the advantages of simple structure, high beam splitting rate, small size and the like.

Description

technical field [0001] The invention relates to a beam splitter, in particular to a terahertz wave polarization beam splitter with a parallel waveguide structure. Background technique [0002] Terahertz waves (Terahertz, THz for short) refer to electromagnetic waves with a frequency range of 0.1~10THz between microwave and infrared spectrum. On the electromagnetic spectrum, it is a special area transitioning from electronics to optics. The intersection area of ​​microscopic quantum theory has high scientific research and application value. Due to the long-term research gap, terahertz waves have always been a blind spot in electromagnetic wave research. With the emergence of quantum cascade lasers, free electron lasers, light wave difference frequency methods, and continuous terahertz wave methods that generate higher power through optical rectification, as well as research on superheterodyne and direct detectors, etc. With the progress, terahertz technology has gradually b...

AI Technical Summary

Problems solved by technology

Due to the long-term research gap, terahertz waves have always been a blind spot in electromagnetic wave research

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