CN106772800A - Four-way THz wave power splitter - Google Patents

Four-way THz wave power splitter Download PDF

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Publication number
CN106772800A
CN106772800A CN201710029777.4A CN201710029777A CN106772800A CN 106772800 A CN106772800 A CN 106772800A CN 201710029777 A CN201710029777 A CN 201710029777A CN 106772800 A CN106772800 A CN 106772800A
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CN
China
Prior art keywords
photon crystal
wave
multimode
guide
waveguide
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CN201710029777.4A
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Chinese (zh)
Inventor
余佳培
李九生
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China Jiliang University
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China Jiliang University
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Priority to CN201710029777.4A priority Critical patent/CN106772800A/en
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    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122Basic optical elements, e.g. light-guiding paths
    • G02B6/125Bends, branchings or intersections
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/10Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
    • G02B6/12Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type of the integrated circuit kind
    • G02B6/122Basic optical elements, e.g. light-guiding paths
    • G02B6/1225Basic optical elements, e.g. light-guiding paths comprising photonic band-gap structures or photonic lattices

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Optical Integrated Circuits (AREA)

Abstract

The invention discloses a kind of four-way THz wave power splitter, it includes poroid hollow out flat board, signal input part, first signal output part, secondary signal output end, 3rd signal output part, 4th signal output part, there are three multimode photon crystal wave-guides between signal input part and four output ends, there are two photon crystal wave-guide passages between left side multimode photon crystal wave-guide and two, right side multimode photon crystal wave-guide, the THz wave of input is divided into 2 tunnels through left side multimode photon crystal wave-guide, respectively it is divided into 2 tunnels through two, right side multimode photon crystal wave-guide again, realize that 4 passages export the THz wave of equal-wattage simultaneously.The present invention has that simple structure, work(component efficiency are high, and size is small, low cost, the advantages of be easily integrated.

Description

Four-way THz wave power splitter
Technical field
The present invention relates to beam splitter, more particularly to a kind of four-way THz wave power splitter.
Background technology
Aggravation and social informatization process with fast development, the international competition of modern science and technology are constantly accelerated, Various new technologies, new thought emerge in multitude out.From cloud computing to Internet of Things, the appearance from laser to Terahertz Technology Very big opportunity is both provided, while there is also certain challenge.THz wave typically refers to frequency in 0.1~10THz (wavelength Be 0.03~3mm) electromagnetic wave.Its long-wave band coincides with millimeter wave (submillimeter wave), and its development relies primarily on electronics Science and technology;And its short-wave band coincides with infrared ray, its development relies primarily on photonic propulsion science and technology, it is seen that THz wave It is frequency range of the macroelectronics to microcosmic photonic propulsion transition, very special position is occupied in electromagnetic spectrum.Due to Terahertz The position of residing special electromagnetic wave spectrum, it has many superior characteristics, has very important academic and application value so that too Hertz is subject to the support of whole world national governments.
THz wave power splitter is a kind of important THz wave function element, and THz wave power splitter has turned into recent years The focus studied both at home and abroad.But existing THz wave power splitter is mostly existed, and complex structure, work(component efficiency be low, high cost Deng shortcomings, so research structure is simple, work(component efficiency is high, low cost THz wave power splitter is significant.
The content of the invention
The present invention is in order to overcome prior art not enough, there is provided a kind of simple structure, work(component efficiency four-way Terahertz high Ripple power splitter.
In order to achieve the above object, technical scheme is as follows:
A kind of four-way THz wave power splitter includes that the airport photon of poroid hollow out flat board 14, two-dimension periodic arrangement is brilliant Body 13, signal input part 1, the first signal output part 2, secondary signal output end 3, the 3rd signal output part 4, the 4th signal output The 5, first multimode photon crystal wave-guide 6 of end, the second multimode photon crystal wave-guide 7, the 3rd multimode photon crystal wave-guide 8, first are single Mould photon crystal wave-guide 9, the second single-mode photon crystal waveguide 10, the 3rd single-mode photon crystal waveguide 11, the 4th single mode photon are brilliant Bulk wave leads 12;The airport photon crystal 13 of two-dimension periodic arrangement, the sky of two-dimension periodic arrangement are provided with poroid hollow out flat board 14 Signal input part 1, the first signal output part 2, secondary signal output end 3, the 3rd signal are provided between stomata photon crystal 13 defeated Go out end 4, the 4th signal output part 5, after first removing the airport photon crystal 13 of part five-element's two-dimension periodic arrangement, poroid hollow out The first multimode photon crystal wave-guide 6, the second multimode photon crystal wave-guide 7, the 3rd multimode photonic crystal are formed on flat board 14 respectively Waveguide 8, then after removing the airport photon crystal 13 of part a row or column two-dimension periodic arrangement, on poroid hollow out flat board 14 point The first single-mode photon crystal waveguide 9, the second single-mode photon crystal waveguide 10, the 3rd single-mode photon crystal waveguide 11, are not formed Four single-mode photon crystal waveguides 12, the THz wave of the input of signal input part 1 on poroid hollow out flat board 14 is through the first multimode light 6 points of sub- crystal waveguide is 2 tunnels, respectively through the first single-mode photon crystal waveguide 9 and the second single-mode photon crystal waveguide the 10, the 3rd Single-mode photon crystal waveguide 11, the 4th single-mode photon crystal waveguide 12 enters the second multimode photon crystal wave-guide 7, the 3rd multimode light Sub- crystal waveguide 8, then be 4 tunnels through the second multimode photon crystal wave-guide 7,8 points of the 3rd multimode photon crystal wave-guide, it is achieved in 4 Individual passage exports the THz wave of equal power simultaneously.
The material of described poroid hollow out flat board is silicon, and refractive index is 3.6.The airport light of described two-dimension periodic arrangement Sub- crystal is the airport photonic crystal arrays along the square periodic distribution of plane, and radius is 144~146 μm, airport The distance between center of circle is 292~294 μm.The first described multimode photon crystal wave-guide is the removal row two dimension week of the five-element 27 Formed after the airport photonic crystal of phase arrangement.Described the second multimode photon crystal wave-guide, the 3rd multimode photonic crystal ripple It is formation after the airport photonic crystal for removing the arrangement of the row two-dimension periodic of the five-element 19 to lead.The first described single-mode photon crystal Waveguide, the second single-mode photon crystal waveguide, the 4th single-mode photon crystal waveguide are the skies for removing part a line two-dimension periodic arrangement Formed after stomata photonic crystal.The 3rd described single-mode photon crystal waveguide is the sky for removing the arrangement of the row two-dimension periodic of part one Formed after stomata photonic crystal.
Four-way THz wave power splitter of the invention has simple and compact for structure, and work(component efficiency is high, and size is small, volume It is small, it is easy to the advantages of making, meet the requirement in field applications such as THz wave imaging, medical diagnosis, THz wave communications.
Brief description of the drawings
Fig. 1 is the three dimensional structure diagram of four-way THz wave power splitter;
Fig. 2 is the two-dimensional structure schematic diagram of four-way THz wave power splitter;
Fig. 3 is each output end output power curve of four-way THz wave power splitter;
Fig. 4 is four-way THz wave power splitter steady-state field distribution map in 0.280THz.
Fig. 5 is four-way THz wave power splitter steady-state field distribution map in 0.280THz.
Specific embodiment
As shown in Figure 1, 2, a kind of four-way THz wave power splitter includes the arrangement of poroid hollow out flat board 14, two-dimension periodic Airport photon crystal 13, signal input part 1, the first signal output part 2, secondary signal output end 3, the 3rd signal output part 4, 4th signal output part 5, the first multimode photon crystal wave-guide 6, the second multimode photon crystal wave-guide 7, the 3rd multimode photonic crystal Waveguide 8, the first single-mode photon crystal waveguide 9, the second single-mode photon crystal waveguide 10, the 3rd single-mode photon crystal waveguide 11, Four single-mode photon crystal waveguides 12;The airport photon crystal 13 of two-dimension periodic arrangement, two dimension are provided with poroid hollow out flat board 14 Signal input part 1, the first signal output part 2, secondary signal output end are provided between the airport photon crystal 13 of periodic arrangement 3rd, the 3rd signal output part 4, the 4th signal output part 5, first remove the airport photonic crystal of part five-element's two-dimension periodic arrangement After 13, the first multimode photon crystal wave-guide 6, the second multimode photon crystal wave-guide the 7, the 3rd are formed on poroid hollow out flat board 14 respectively Multimode photon crystal wave-guide 8, then after removing the airport photon crystal 13 of part a row or column two-dimension periodic arrangement, it is poroid to engrave The first single-mode photon crystal waveguide 9, the second single-mode photon crystal waveguide 10, the 3rd single mode photon crystalline substance are formed on empty flat board 14 respectively Bulk wave leads the 11, the 4th single-mode photon crystal waveguide 12, the THz wave warp of the input of signal input part 1 on poroid hollow out flat board 14 First 6 points of multimode photon crystal wave-guide is 2 tunnels, respectively through the first single-mode photon crystal waveguide 9 and the second single-mode photon crystal Waveguide 10, the 3rd single-mode photon crystal waveguide 11, the 4th single-mode photon crystal waveguide 12 enter the second multimode photon crystal wave-guide 7th, the 3rd multimode photon crystal wave-guide 8, then be 4 through the second multimode photon crystal wave-guide 7,8 points of the 3rd multimode photon crystal wave-guide Road, is achieved in the THz wave that 4 passages export equal power simultaneously.
The material of described poroid hollow out flat board 14 is silicon, and refractive index is 3.6.The airport of described two-dimension periodic arrangement Photon crystal 13 is the airport photonic crystal arrays along the square periodic distribution of plane, and radius is 144~146 μm, empty The distance between stomata center of circle is 292~294 μm.The first described multimode photon crystal wave-guide 6 is the removal row of the five-element 27 Formed after the airport photon crystal 13 of two-dimension periodic arrangement.Described the second multimode photon crystal wave-guide 7, the 3rd multimode light Sub- crystal waveguide 8 is formation after the airport photon crystal 13 for removing the arrangement of the row two-dimension periodic of the five-element 19.Described first Single-mode photon crystal waveguide 9, the second single-mode photon crystal waveguide 10, the 4th single-mode photon crystal waveguide 12 are removal part a line Formed after the airport photon crystal 13 of two-dimension periodic arrangement.The 3rd described single-mode photon crystal waveguide 11 is removal part Formed after the airport photon crystal 13 of one row two-dimension periodic arrangement.
Embodiment 1
The material of poroid hollow out flat board is silicon, and refractive index is 3.6.The airport photonic crystal of two-dimension periodic arrangement is along flat The airport photonic crystal arrays of the square periodic distribution in face, radius is 144 μm, and the distance between airport center of circle is 292μm.First multimode photon crystal wave-guide is shape after the airport photonic crystal for removing the arrangement of the row two-dimension periodic of the five-element 27 Into.Second multimode photon crystal wave-guide, the 3rd multimode photon crystal wave-guide are the removal five-element 19 row two-dimension periodic arrangements Formed after airport photonic crystal.First single-mode photon crystal waveguide is the air for removing the arrangement of the row two-dimension periodic of a line 11 Formed after the photonic crystal of hole.Second single-mode photon crystal waveguide is the airport photon for removing the arrangement of the row two-dimension periodic of a line ten Formed after crystal.3rd single-mode photon crystal waveguide is after removing the airport photonic crystal that the row two-dimension periodic of the five-element one is arranged Formed.4th single-mode photon crystal waveguide is formation after the airport photonic crystal for removing the arrangement of the row two-dimension periodic of a line two 's.Each output end output power curve of four-way THz wave power splitter when frequency is 0.280THz as shown in figure 3, export Power is 23.6%, and the general power of power splitter is 94.4%.Stable state electricity of the four-way THz wave power splitter in 0.280THz Field pattern is as shown in Figure 4, Figure 5.

Claims (7)

1. a kind of four-way THz wave power splitter, it is characterised in that arranged including poroid hollow out flat board (14), two-dimension periodic Airport photonic crystal (13), signal input part (1), the first signal output part (2), secondary signal output end (3), the 3rd signal Output end (4), the 4th signal output part (5), the first multimode photon crystal wave-guide (6), the second multimode photon crystal wave-guide (7), 3rd multimode photon crystal wave-guide (8), the first single-mode photon crystal waveguide (9), the second single-mode photon crystal waveguide (10), the 3rd Single-mode photon crystal waveguide (11), the 4th single-mode photon crystal waveguide (12);Two-dimension periodic is provided with poroid hollow out flat board (14) The airport photonic crystal (13) of arrangement, signal input part is provided between the airport photonic crystal (13) of two-dimension periodic arrangement (1), the first signal output part (2), secondary signal output end (3), the 3rd signal output part (4), the 4th signal output part (5), First after the airport photonic crystal (13) of removal part five-element two-dimension periodic arrangement, the is formed on poroid hollow out flat board (14) respectively One multimode photon crystal wave-guide (6), the second multimode photon crystal wave-guide (7), the 3rd multimode photon crystal wave-guide (8), then remove After the airport photonic crystal (13) of part a row or column two-dimension periodic arrangement, the is formed on poroid hollow out flat board (14) respectively One single-mode photon crystal waveguide (9), the second single-mode photon crystal waveguide (10), the 3rd single-mode photon crystal waveguide (11), the 4th Single-mode photon crystal waveguide (12), the THz wave of signal input part (1) input on poroid hollow out flat board (14) is through more than first Mould photon crystal wave-guide (6) is divided into 2 tunnels, respectively through the first single-mode photon crystal waveguide (9) and the second single-mode photon crystal ripple Lead (10), the 3rd single-mode photon crystal waveguide (11), the 4th single-mode photon crystal waveguide (12) the second multimode photonic crystal of entrance Waveguide (7), the 3rd multimode photon crystal wave-guide (8), then through the second multimode photon crystal wave-guide (7), the 3rd multimode photonic crystal Waveguide (8) is divided into 4 tunnels, is achieved in the THz wave that 4 passages export equal power simultaneously.
2. a kind of four-way THz wave power splitter according to claim 1, it is characterised in that described poroid hollow out is put down The material of plate (14) is silicon, and refractive index is 3.6.
3. a kind of four-way THz wave power splitter according to claim 1, it is characterised in that described two-dimension periodic row The airport photonic crystal (13) of row is the airport photonic crystal arrays along the square periodic distribution of plane, and radius is 144~146 μm, the distance between airport center of circle is 292~294 μm.
4. a kind of four-way THz wave power splitter according to claim 1, it is characterised in that the first described multimode light Sub- crystal waveguide (6) is that the airport photonic crystal (13) for removing the arrangement of the row two-dimension periodic of the five-element 27 is formed afterwards.
5. a kind of four-way THz wave power splitter according to claim 1, it is characterised in that the second described multimode light Sub- crystal waveguide (7), the 3rd multimode photon crystal wave-guide (8) are the airport photons for removing the arrangement of the row two-dimension periodic of the five-element 19 Crystal (13) is formed afterwards.
6. a kind of four-way THz wave power splitter according to claim 1, it is characterised in that the first described single-mode optics Sub- crystal waveguide (9), the second single-mode photon crystal waveguide (10), the 4th single-mode photon crystal waveguide (12) are removal part a line What the airport photonic crystal (13) of two-dimension periodic arrangement was formed afterwards.
7. a kind of four-way THz wave power splitter according to claim 1, it is characterised in that the 3rd described single-mode optics Sub- crystal waveguide (11) is that the airport photonic crystal (13) for removing the arrangement of the row two-dimension periodic of part one is formed afterwards.
CN201710029777.4A 2017-01-11 2017-01-11 Four-way THz wave power splitter Pending CN106772800A (en)

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116905A (en) * 2011-01-07 2011-07-06 南京邮电大学 Two-dimensional photonic crystal four-wavelength division multiplexer based on multiple-mode interference
CN105044842A (en) * 2015-09-06 2015-11-11 中国计量学院 Multichannel terahertz wave power divider
CN105911643A (en) * 2016-06-23 2016-08-31 中国计量大学 Adjustable multi-channel TeraHertz wave power divider based on hollow flat plate structure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102116905A (en) * 2011-01-07 2011-07-06 南京邮电大学 Two-dimensional photonic crystal four-wavelength division multiplexer based on multiple-mode interference
CN105044842A (en) * 2015-09-06 2015-11-11 中国计量学院 Multichannel terahertz wave power divider
CN105911643A (en) * 2016-06-23 2016-08-31 中国计量大学 Adjustable multi-channel TeraHertz wave power divider based on hollow flat plate structure

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
刘峭峭 等: "基于1×4光子晶体波导分束器的特性研究", 《应用光学》 *
徐旭明 等: "1x4光子晶体波导分束器的特性", 《发光学报》 *
程伟 等: "基于光子晶体的双波长太赫兹波功分器研究", 《光子学报》 *
范定环 等: "基于光子晶体多模波导的1.31/1.55um双波长功分器的设计", 《量子电子学报》 *

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Application publication date: 20170531