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Double-right-angle corner waveguide-shaped terahertz wave polarization beam splitter

A polarizing beam splitter and curved waveguide technology, which is applied in light guides, instruments, optics, etc., can solve the problems of difficult manufacturing process, low beam splitting rate, complex structure, etc., and achieve simple structure, high beam splitting rate, and easy integration. 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 overcome the disadvantages of relatively low beam splitting ratio, complicated structure and difficult actual manufacturing process in the prior art, and provide a double right-angle curved waveguide-shaped terahertz wave polarization beam splitter with high beam splitting ratio

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Embodiment 1

[0016] Double right angle bend waveguide terahertz wave polarizing beam splitter:

[0017] The material of the substrate is silicon dioxide, the length is 2560 μm, the width is 1500 μm, and the thickness is 300 μm. The material of the branched input waveguide, the first right-angle waveguide, the second right-angle waveguide, the two circular columns, and the two square frames is silicon, and the thickness is 100 μm. The length of the common side of the branched input waveguide is 300 μm, the length of the upper and lower branches is 500 μm, the radius of the outer circle of the arc is 150 μm, and the width of the waveguide is 50 μm. The distance between the first right-angle waveguide and the second right-angle waveguide is 100 μm; the size of the first right-angle waveguide and the second right-angle waveguide are the same, the radius of the outer circle of the arc is 150 μm, and the width of the waveguide is 50 μm; The lengths of the longitudinal and lateral branches of th...

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Abstract

The invention discloses a double-right-angle corner waveguide-shaped terahertz wave polarization beam splitter. The double-right-angle corner waveguide-shaped terahertz wave polarization beam splitter comprises a terahertz wave input end, a first signal output end, a second signal output end, a basal body, a branch-shaped input waveguide, a first straight corner waveguide, a second straight corner waveguide, two cylindrical columns and two square frames, wherein the branch-shaped input waveguide, the first straight corner waveguide, the second straight corner waveguide, the two cylindrical columns and the two square frames are arranged on the basal body; terahertz waves are input from the terahertz wave input end; TE (transverse electric) waves are output from the first signal output end; and TM (transverse magnetic) waves are output from the second signal output end, so that the polarization beam splitting function is achieved. The double-right-angle corner waveguide-shaped terahertz wave polarization beam splitter has the advantages of simple structure, high beam splitting efficiency, small size, low cost, convenience in manufacture, easiness in integration and the like.

Description

technical field [0001] The invention relates to a beam splitter, in particular to a double right-angle bent waveguide-shaped terahertz wave polarization beam splitter. Background technique [0002] Terahertz technology is a high-tech developed in the late 1980s. It has attracted much attention in recent years. It has broad application prospects in biomedicine, product testing, wireless communication and other fields. Terahertz radiation has been recognized by people in the 19th century. Oston and others at Bell Laboratories in the United States discovered the gallium arsenide photoconductive detection effect when studying ultrafast semiconductor phenomena. In 1982, the relevant results were published in the authoritative American magazine "Science Published on ", which aroused widespread concern in the scientific community and became a hot topic at the end of the 20th century. However, due to the absence of stable radiation sources and detectors, and the special position of...

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Application Information

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