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Terahertz wave polarization beam splitter with parallel waveguide structure

A polarization beam splitter and polarization beam splitting technology, applied in light guides, instruments, optics, etc., to achieve the effects of high beam splitting rate, simple and compact structure, and small size

Inactive Publication Date: 2016-04-13
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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

Method used

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  • Terahertz wave polarization beam splitter with parallel waveguide structure
  • Terahertz wave polarization beam splitter with parallel waveguide structure
  • Terahertz wave polarization beam splitter with parallel waveguide structure

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Embodiment 1

[0015] The material of the first rectangular waveguide of the terahertz wave polarization beam splitter with parallel waveguide structure is silicon dioxide, the length L of the first rectangular waveguide is 20 μm, the width W is 0.5 μm, and the height h is 0.25 μm. The material of the second rectangular waveguide is silicon, the length L of the second rectangular waveguide is 20 μm, the width W is 0.5 μm, and the height t is 0.06 μm. The material of the third rectangular waveguide is silicon dioxide, the length L of the third rectangular waveguide is 20 μm, the width W is 0.5 μm, and the height h is 0.25 μm. The material of the fourth rectangular waveguide is silicon dioxide, the length L of the fourth rectangular waveguide is 20 μm, the width W is 0.5 μm, and the height h is 0.25 μm. The material of the fifth rectangular waveguide is silicon, the length L of the fifth rectangular waveguide is 20 μm, the width W is 0.5 μm, and the height t is 0.06 μm. The material of the si...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/126
Inventor 李九生
Owner CHINA JILIANG UNIV
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