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Symmetrical structure terahertz wave polarization beam splitter

A polarization beam splitter and symmetrical structure technology, applied in the direction of instruments, light guides, optics, etc., can solve the problems of low polarization beam splitting rate, complex structure, difficult production, etc., and achieve low cost, high beam splitting rate, and simple structure Effect

Inactive Publication Date: 2013-02-13
CHINA JILIANG UNIV
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Problems solved by technology

[0004] The purpose of the present invention is to provide a terahertz wave polarization beam splitter with a symmetrical structure in order to overcome the disadvantages of relatively low polarization beam splitting ratio, complex structure, difficulty in actual manufacture, and high cost in the prior art

Method used

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  • Symmetrical structure terahertz wave polarization beam splitter
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  • Symmetrical structure terahertz wave polarization beam splitter

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Embodiment 1

[0016] The material of the substrate is silicon dioxide, the length is 2000 μm, the width is 1800 μm, and the thickness is 200 μm; the material of the waveguide is silicon, and the thickness is 40 μm. The grooved waveguide at the upper end is composed of two horizontal waveguides and a concave waveguide. The length of the concave waveguide is 1000 μm and the width is 80 μm. The depth of the concave waveguide is 80 μm. The length of the two horizontal waveguides is 500 μm and the width is Both are 80 μm. The groove waveguide at the lower end is composed of a left horizontal waveguide, a right horizontal waveguide and a concave waveguide. The length of the concave waveguide is 1000 μm, the width is 80 μm, the depth of the concave waveguide is 80 μm, and the length of the left horizontal waveguide is 300 μm. The width is 80 μm; the right horizontal waveguide has a length of 500 μm and a width of 80 μm. The waveguide width of the ring waveguide is 80 μm, and the radius of the out...

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Abstract

The invention discloses a symmetrical structure terahertz wave polarization beam splitter which comprises a signal input end, a first signal output end, a second signal output end, an upper end groove-shaped waveguide, a polarization beam splitting waveguide area, a lower end groove-shaped waveguide and a base body. The central bottom end of a groove of the upper end groove-shaped waveguide is connected with the central top end of the polarization beam splitting waveguide area, and the central bottom end of the polarization beam splitting waveguide area is connected with the central top end of a groove of the lower end groove-shaped waveguide. The polarization beam splitting waveguide area comprises a ring waveguide, a symmetrical rectangular ring waveguide, a symmetrical ring waveguide and a symmetrical column waveguide. Signals can be input from the signal input end, and beam splitting wave is respectively output from the first signal output end and the second signal output end. The symmetrical structure terahertz wave polarization beam splitter has the advantages of being simple in structure, high in beam splitting rate, small in size, low in cost, convenient to manufacture and the like and meeting application requirement of fields of terahertz wave communication 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 symmetrical structure. Background technique [0002] Terahertz (THz for short) waves refer to electromagnetic waves with a frequency in the range of 0.1THz to 10THz. Because terahertz is in a special position in the electromagnetic spectrum, it has many superior characteristics. In recent years, researchers from all over the world have paid great attention to terahertz technology, which has made great progress in the generation, detection and application of terahertz waves, forming a new interdisciplinary field - terahertz science and technology . Since terahertz can provide a wireless transmission rate up to 10Gb / s, terahertz communication has become one of the important fields of terahertz technology application. The terahertz wave communication system is inseparable from the performance guarantee of various terahertz wave functional device...

Claims

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Application Information

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IPC IPC(8): G02B6/126
Inventor 李九生
Owner CHINA JILIANG UNIV
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