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Terahertz wave dual-mode polarization power splitter

A power divider and terahertz technology, applied in the field of power dividers, can solve the problems of inability to complete mode conversion, complex structure, low power division efficiency, etc., and achieve the effects of simple structure, easy integration and low cost

Active Publication Date: 2019-09-24
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, most of the existing terahertz wave power splitters have many shortcomings such as complex structure, low power division efficiency, and inability to complete mode conversion. The power divider is of great significance

Method used

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  • Terahertz wave dual-mode polarization power splitter
  • Terahertz wave dual-mode polarization power splitter
  • Terahertz wave dual-mode polarization power splitter

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Embodiment 1

[0017] The structure of the terahertz wave dual-mode polarization power splitter in this embodiment is as described above, see for details figure 1 , which will not be repeated here. The specific parameters of each component are as follows:

[0018]The base layer 15 is made of silicon dioxide with a refractive index of 1.45, a length of 28 μm, a width of 10 μm, and a thickness of 2 μm. The first tapered directional coupler 5, the second tapered directional coupler 9, the first separation zone 6, the second separation zone 8, the first multiplexing zone 10, the second multiplexing zone 12, the first linear cone The material of the shaped waveguide 7 , the second linear tapered waveguide 11 , the single-mode waveguide 14 and the multi-mode waveguide 13 is high-resistance silicon with a refractive index of 3.4. The first tapered directional coupler 5 has a length of 2.2 μm, a width of 1.1 μm, and a thickness of 2 μm. The second tapered directional coupler 9 is an asymmetric str...

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Abstract

The invention discloses a terahertz wave dual-mode polarized power splitter. The power splitter comprises a base layer, first and second tapered directional couplers, a single-mode waveguide, a multi-mode waveguide, a signal input end, three signal output ends, first and second separation zones on the first tapered directional coupler, first and second multiplex zones on the second tapered directional coupler, a first linear tapered waveguide connecting the first and second separation zones, and a second linear tapered waveguide connecting the first and second multiplex zones. Signals are input from the signal input end, TE (Transverse Electric) waves are coupled to the multi-mode waveguide through the first separation zone and converted into TM (Transverse Magnetic) waves, and then the TMwaves are coupled to the single-mode waveguide and output through the first, second and third signal output ends. The TM waves are coupled to the single-mode waveguide through the first and second separation zones and converted into TE waves through the first and second multiplex conversion zones, and the TE waves are output through the first and second signal output ends. The power splitter hasthe advantages of mode conversion, small size, easy integration and the like.

Description

technical field [0001] The invention relates to a power splitter, in particular to a terahertz wave dual-mode polarization power splitter. Background technique [0002] Terahertz waves refer to electromagnetic waves with a frequency in the range of 0.1THz to 10THz. Due to the lack of terahertz sources and detection substances in nature, before the 1980s, scientists in the world still had very limited understanding of the electromagnetic characteristics of this frequency band. In recent decades, the rapid development of ultrafast laser technology has made it possible to solve the problem of obtaining a stable and reliable terahertz source, thus promoting the vigorous development of terahertz wave detection and related research applications. Therefore, terahertz technology and terahertz The research of Hertz devices has gradually become a hotspot of extensive research in the world. [0003] Terahertz wave power splitter is an important class of terahertz wave functional devic...

Claims

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Application Information

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IPC IPC(8): G02B6/10G02B6/126
Inventor 李九生孙建忠
Owner CHINA JILIANG UNIV
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