CN105911643A - Adjustable multi-channel TeraHertz wave power divider based on hollow flat plate structure - Google Patents
Adjustable multi-channel TeraHertz wave power divider based on hollow flat plate structure Download PDFInfo
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- CN105911643A CN105911643A CN201610481967.5A CN201610481967A CN105911643A CN 105911643 A CN105911643 A CN 105911643A CN 201610481967 A CN201610481967 A CN 201610481967A CN 105911643 A CN105911643 A CN 105911643A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light 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
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/125—Bends, branchings or intersections
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light 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
- G02B6/122—Basic optical elements, e.g. light-guiding paths
- G02B6/1225—Basic optical elements, e.g. light-guiding paths comprising photonic band-gap structures or photonic lattices
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/10—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings of the optical waveguide type
- G02B6/12—Light 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
- G02B2006/12133—Functions
- G02B2006/1215—Splitter
Abstract
The invention discloses an adjustable multi-channel TeraHertz wave power divider based on a hollow flat plate structure. The adjustable multi-channel TeraHertz wave power divider comprises a porous hollow flat plate, a signal input end, a first signal output end, a second signal output end, a third signal output end, a fourth signal output end, a fifth signal output end and a sixth signal output end, wherein four Y-shaped waveguide channels and a multi-mode interference region are arranged between the signal input end and the six output ends; input TeraHertz waves are divided into 2 paths through the multi-mode interference region; the 2 paths are divided into 4 paths through two second-stage Y-shaped waveguide channels, and 2 of the 4 paths are divided into 4 paths through two third-stage Y-shaped waveguide channels, so as to realize 6 equal-power output TeraHertz waves; furthermore, the refractive index of the local flat plate is changed by adjusting the temperature, so that two-stage Y-shaped waveguides do not carry out power division, and the adjustable effect of converting 6 equal-power output TeraHertz waves into 4 equal-power output TeraHertz waves can be achieved. The adjustable multi-channel TeraHertz wave power divider has the advantages of simple structure, high power division efficiency, small size, low cost, easiness in integration and the like.
Description
Technical field
The present invention relates to THz wave power splitter, particularly relate to a kind of based on hollow out slab construction
Adjustable multi-channel terahertz ripple power splitter.
Background technology
Terahertz emission is the general designation of the electromagnetic radiation to a specific band, and it is at electromagnetic spectrum
In between microwave and infra-red radiation, the name of terahertz emission derives from its frequency of oscillation
At about 1THz, in person in electronics, the electromagnetic wave of this frequency range is also referred to as millimeter wave
And submillimeter wave；And in field of spectroscopy, it is also referred to as far ir ray.In 20th century
Before the mid-80, owing to lacking high-energy, high efficiency, room-temperature stable operating too
Hertzion radiation source and effective THz wave Detection Techniques, Terahertz Technology and applied research enter
Slowly, relevant document report also cans be counted on one's fingers, and terahertz wave band becomes broad electricity in exhibition
In electromagnetic spectrum, unique one piece of wave band not yet fully developed, is referred to as electromagnetic spectrum by scientific circles
Last " Terahertz space ".Along with terahertz emission source and the breakthrough of Detection Techniques, terahertz
Hereby unique advantageous characteristic be found and the detection of material science, detection of gas, biology and medical science,
The aspects such as communication show huge application prospect.
THz wave power splitter is the THz wave functional device that a class is important, Terahertz in recent years
Ripple power splitter has become focus and the difficult point of research both at home and abroad.But existing THz wave merit is divided
Device mostly also exists that structure is complicated, merit component efficiency is low, high in cost of production shortcomings, so research
Simple in construction, merit component efficiency height, low cost, size are little, have the THz wave of tunable performance
Power splitter is significant.
Summary of the invention
The present invention is in order to overcome prior art not enough, it is provided that a kind of simple in construction, merit component efficiency are high
Based on hollow out slab construction adjustable multi-channel terahertz ripple power splitter.
In order to achieve the above object, technical scheme is as follows:
Adjustable multi-channel terahertz ripple power splitter based on hollow out slab construction, including poroid hollow out
Flat board, airport, the first straight waveguide, the second straight waveguide, the 3rd straight waveguide, the 4th
Straight waveguide, the 5th straight waveguide, the 6th straight waveguide, the 7th straight waveguide, the 8th straight line
Waveguide, the 9th straight waveguide, the first y-shaped waveguide, the second y-shaped waveguide, the 3rd Y shape ripple
Lead, the 4th y-shaped waveguide, the first airport combine, the second airport combines, the 3rd air
Hole combination, the 4th airport combination, the 5th airport combination, the 6th airport combination, the 7th
Airport combination, the 8th airport combination, multiple-mode interfence region, the first airport, the second sky
Pore, the 3rd airport, the 4th airport, signal input part, the first signal output part,
Binary signal outfan, the 3rd signal output part, the 4th signal output part, the 5th signal output part,
6th signal output part, the 9th airport combination；Poroid hollow out flat board is provided with in two dimension positive three
The airport photonic crystal of dihedral periodic arrangement, at the airport removing the arrangement of part two-dimension periodic
After photonic crystal, poroid hollow out flat board defines the first straight waveguide, the second straight waveguide,
3rd straight waveguide, the 4th straight waveguide, the 5th straight waveguide, the 6th straight waveguide, the 7th
Straight waveguide, the 8th straight waveguide, the 9th straight waveguide, the first y-shaped waveguide, the 2nd Y
Shape waveguide, the 3rd y-shaped waveguide, the 4th y-shaped waveguide and multiple-mode interfence region, the first straight line
The left end of waveguide is provided with signal input part, and the left end of the second straight waveguide is provided with the 5th signal output
End, the left end of the 3rd straight waveguide is provided with the 6th signal output part, the right-hand member of the 6th straight waveguide
Being provided with the first signal output part, the right-hand member of the 7th straight waveguide is provided with the 4th signal output part, the
The right-hand member of eight straight waveguides is provided with secondary signal outfan, and the right-hand member of the 9th straight waveguide is provided with
Three signal output parts, the left end in multiple-mode interfence region and the first straight waveguide are connected, multiple-mode interfence
The bottom righthand side in region and upper right side are respectively by the 4th straight waveguide and the 5th straight waveguide and the
The left upper end of one y-shaped waveguide and the lower-left end of the second y-shaped waveguide are connected, the first y-shaped waveguide
Lower-left end and the right-hand member of the second straight waveguide be connected, the left upper end of the second y-shaped waveguide and the
The right-hand member of three straight waveguides is connected, and the left end of the 3rd y-shaped waveguide, upper right side, bottom righthand side divide
Not with the right-hand member of the first y-shaped waveguide, the left end of the 8th straight waveguide, the 6th straight waveguide
Left end be connected, the left end of the 4th y-shaped waveguide, upper right side, bottom righthand side respectively with the second Y shape
The right-hand member of waveguide, the left end of the 7th straight waveguide, the left end of the 9th straight waveguide are connected, and first
The position of the center deviation lower-left of y-shaped waveguide is provided with the second airport, in the second y-shaped waveguide
Position on the heart is to the left is provided with the first airport, and it is empty that the center of the 3rd y-shaped waveguide is provided with the 3rd
Pore, the center of the 4th y-shaped waveguide is provided with the 4th airport, the first y-shaped waveguide and second
Straight waveguide, the junction of the 4th straight waveguide are respectively equipped with the first airport combination and the 3rd sky
Pore combines, the second y-shaped waveguide and the 3rd straight waveguide, the junction of the 5th straight waveguide
It is respectively equipped with the second airport combination and the combination of the 4th airport, the 3rd y-shaped waveguide and the 6th
Straight waveguide, the junction of the 8th straight waveguide are provided with the 5th airport combination and the 7th airport
Combination, the 4th y-shaped waveguide and the 7th straight waveguide, the junction of the 9th straight waveguide are provided with
6th airport combination and the combination of the 8th airport, the 9th airport combination is positioned at multiple-mode interfence district
The right side middle-end in territory.
Technique scheme can use following optimal way:
The material of described poroid hollow out flat board is silicon, and when temperature is 25 DEG C, refractive index is
3.45, when temperature becomes 650 DEG C, refractive index is 3.6.The sky of described two-dimension periodic arrangement
The radius of pore photonic crystal is 24～25 μm, and the distance between the airport center of circle is
76～80 μm.Described the first airport combination, the second airport combine, the 3rd airport group
Close, the 4th airport combines, the 5th airport combines, the 6th airport combines, the 7th air
Hole combination is identical with the 8th airport combined shaped structure, the radius of airport in airport combination
Being 24～25 μm, the distance between the airport center of circle is 118～119 μm.Described first is empty
Pore radius is 15～16 μm, the first airport with the center of the second y-shaped waveguide for initial point to
Upper left side moves 23～24 μm.The second described airport radius is 15～16 μm, second
Airport moves 23～24 μm with the center of the first y-shaped waveguide for initial point lower section to the left.Institute
The 3rd airport stated and the 4th airport shape are identical, and radius is 15～16 μm, and the 3rd is empty
Pore and the 4th airport lay respectively at the 3rd y-shaped waveguide and the center of the 4th y-shaped waveguide.
The upper end airport of the 9th airport combination, both under air hole, the radius of right-hand member airport are
24～25 μm, the distance between right-hand member airport and upper end airport, the both under air center of circle is
57～58 μm, the radius of left end airport is 19～20 μm, left end airport and right-hand member airport
Distance between the center of circle is 54～55 μm.Poroid hollow out flat board is provided with the equalizing section of rectangle
Territory, the left boundary of temperature regulated zone is through the first y-shaped waveguide and the second y-shaped waveguide
The center of circle of first airport above right-hand member, temperature regulated zone transverse width is adjacent two
4 times of airport distance of center circle.
Based on hollow out slab construction the adjustable multi-channel terahertz ripple power splitter of the present invention has
Simple and compact for structure, merit component efficiency is high, and size is little, and volume is little, it is simple to make, adjustable etc. excellent
Point, meets wanting in field application such as THz wave imaging, medical diagnosis, THz wave communications
Ask.
Accompanying drawing explanation
Fig. 1 is the three-dimensional of adjustable multi-channel terahertz ripple power splitter based on hollow out slab construction
Structural representation；
Fig. 2 is the two dimension of adjustable multi-channel terahertz ripple power splitter based on hollow out slab construction
Structural representation；
Fig. 3 is that adjustable multi-channel terahertz ripple power splitter based on hollow out slab construction is at 1THz
Time, power splitter steady-state field scattergram when not heating (25 DEG C)；
Fig. 4 is that adjustable multi-channel terahertz ripple power splitter based on hollow out slab construction is at 1THz
Time, temperature regulated zone is heated to power splitter steady-state field scattergram when 650 DEG C.
Detailed description of the invention
As illustrated in fig. 1 and 2, a kind of adjustable multi-channel terahertz ripple based on hollow out slab construction
Power splitter, including poroid hollow out flat board 37, airport the 35, first straight waveguide 1, second
Straight waveguide 2, the 3rd straight waveguide 3, the 4th straight waveguide 4, the 5th straight waveguide 5,
Six straight waveguide the 6, the 7th straight waveguide the 7, the 8th straight waveguide the 8, the 9th straight waveguides 9,
First y-shaped waveguide the 10, second y-shaped waveguide the 11, the 3rd y-shaped waveguide the 12, the 4th Y shape
Combination the 14, second airport combination the 15, the 3rd airport combination of waveguide the 13, first airport
16, the 4th airport combination the 17, the 5th airport combination the 18, the 6th airport combination 19,
7th airport combination the 20, the 8th airport combination 21, multiple-mode interfence region the 22, first sky
Pore the 23, second airport the 24, the 3rd airport the 25, the 4th airport 26, signal input
End the 27, first signal output part 28, secondary signal outfan the 29, the 3rd signal output part 30,
4th signal output part the 31, the 5th signal output part the 32, the 6th signal output part the 33, the 9th
Airport combination 36；Poroid hollow out flat board 37 is provided with in two dimension equilateral triangle periodic arrangement
Airport photon crystal 10, at the airport photon crystal 10 removing the arrangement of part two-dimension periodic
After, poroid hollow out flat board defines first straight waveguide the 1, second straight waveguide the 2, the 3rd
Straight waveguide 3, the 4th straight waveguide 4, the 5th straight waveguide 5, the 6th straight waveguide 6,
Seven straight waveguide the 7, the 8th straight waveguide the 8, the 9th straight waveguide the 9, first y-shaped waveguides 10,
Second y-shaped waveguide the 11, the 3rd y-shaped waveguide the 12, the 4th y-shaped waveguide 13 and multiple-mode interfence
Region 22, the left end of the first straight waveguide 1 is provided with signal input part 27, the second straight waveguide
The left end of 2 is provided with the 5th signal output part 32, and the left end of the 3rd straight waveguide 3 is provided with the 6th letter
Number outfan 33, the right-hand member of the 6th straight waveguide 6 is provided with the first signal output part 28, and the 7th
The right-hand member of straight waveguide 7 is provided with the 4th signal output part 31, the right-hand member of the 8th straight waveguide 8
Being provided with secondary signal outfan 29, the right-hand member of the 9th straight waveguide 9 is provided with the 3rd signal output
End 30, left end and first straight waveguide 1 in multiple-mode interfence region 22 are connected, multiple-mode interfence district
The bottom righthand side in territory 22 and upper right side are respectively by the 4th straight waveguide 4 and the 5th straight waveguide 5
It is connected with the left upper end of the first y-shaped waveguide 10 and the lower-left end of the second y-shaped waveguide 11, the
The lower-left end of one y-shaped waveguide 10 and the right-hand member of the second straight waveguide 2 are connected, the second Y shape ripple
Lead the left upper end of 11 and the right-hand member of the 3rd straight waveguide 3 is connected, a left side for the 3rd y-shaped waveguide 12
End, upper right side, bottom righthand side respectively with right-hand member, the 8th straight waveguide of the first y-shaped waveguide 10
The left end of 8, the left end of the 6th straight waveguide 6 are connected, the left end of the 4th y-shaped waveguide 13,
Upper right side, bottom righthand side respectively with the right-hand member of the second y-shaped waveguide 11, the 7th straight waveguide 7
Left end, the left end of the 9th straight waveguide 9 are connected, center (this of the first y-shaped waveguide 10
In bright, the center of y-shaped waveguide refers to the friendship of three branch's straight waveguide centrages of y-shaped waveguide
Point) to the left under position be provided with the second airport 24, the center of the second y-shaped waveguide 11 is to the left
On position be provided with the first airport 23, the center of the 3rd y-shaped waveguide 12 is provided with the 3rd air
Hole 25, the center of the 4th y-shaped waveguide 13 is provided with the 4th airport 26, the first y-shaped waveguide
10 and second the junction of straight waveguide the 2, the 4th straight waveguide 4 be respectively equipped with the first airport
Combination 14 and the 3rd airport combination 16, the second y-shaped waveguide 11 and the 3rd straight waveguide 3,
The junction of the 5th straight waveguide 5 is respectively equipped with the second airport combination 15 and the 4th airport
Combination 17, the 3rd y-shaped waveguide 12 and the company of the 6th straight waveguide the 6, the 8th straight waveguide 8
The place of connecing is provided with the 5th airport combination 18 and the 7th airport combination 20, the 4th y-shaped waveguide
13 and the 7th the junction of straight waveguide the 7, the 9th straight waveguide 9 be provided with the 6th airport combination
19 and the 8th airport combination 21, the 9th airport combination 36 is positioned at multiple-mode interfence region 22
Right side middle-end.
The material of described poroid hollow out flat board 36 is silicon, when temperature is 25 DEG C, and refractive index
Being 3.45, when temperature becomes 650 DEG C, refractive index is 3.6.Described two-dimension periodic arrangement
The radius of airport photonic crystal 35 be 24～25 μm, the distance between the airport center of circle is
76～80 μm.First described airport combination the 14, second airport combination the 15, the 3rd is empty
Pore combination the 16, the 4th airport combination the 17, the 5th airport combination the 18, the 6th airport
It is identical that combination the 19, the 7th airport combination 20 combines 21 shape and structures with the 8th airport,
All comprise two airports.In airport combination, the radius of airport is 24～25 μm, air
Distance between the center of circle, hole is 118～119 μm.The first described airport 23 radius is
15～16 μm, in order to realize the not decile effect of the second y-shaped waveguide 11, the first airport 23
23～24 μm are moved for initial point to 45 ° of upper left side with the center of the second y-shaped waveguide 11.Institute
The second airport 24 radius stated is 15～16 μm, in order to realize the first y-shaped waveguide 10
Not decile effect, the second airport 24 is with the center of the first y-shaped waveguide 10 for initial point to the left
45 °, lower section moves 23～24 μm.The 3rd described airport 25 and the 4th airport 26
Shape is identical, and radius is 15～16 μm, the 3rd airport 25 and the 4th airport 26 respectively
It is positioned at the 3rd y-shaped waveguide 12 and the center of the 4th y-shaped waveguide 13.The 9th described air
The existence of hole combination 36 is the loss in order to reduce multiple-mode interfence region 22, the 9th airport group
The upper end airport of conjunction 36, both under air hole, the radius of right-hand member airport are 24～25 μm,
Distance between right-hand member airport and upper end airport, the both under air center of circle is 57～58 μm,
The radius of left end airport is 19～20 μm, between left end airport and the right-hand member airport center of circle
Distance is 54～55 μm.
Poroid hollow out flat board 37 is provided with the temperature regulated zone 34 of rectangle, rectangle longitudinally across
Monoblock poroid hollow out flat board 37, top and bottom all with the overlapping margins of poroid hollow out flat board 37.
The left boundary of temperature regulated zone 34 passes the first y-shaped waveguide 10 and the second y-shaped waveguide
The center of circle of first airport above 11 low order ends, temperature regulated zone 34 transverse width is
4 times of adjacent two airport distance of center circle.
Temperature regulated zone 34 is used for heating.When not heating, THz wave inputs from signal
End 27 input is divided into two-way through multiple-mode interfence region 22, then via the first y-shaped waveguide 10
Being divided into 4 tunnels with the second y-shaped waveguide 11, wherein 2 tunnels are via the 3rd y-shaped waveguide 12 and
Four y-shaped waveguides 13 are divided into 4 tunnels, finally realize 6 outfan equivalent outputs, adjust temperature
Joint region 34 is heated, and changes the refractive index of temperature regulated zone 34 so that enter first
The THz wave of y-shaped waveguide 10 and the second y-shaped waveguide 11 cannot be introduced into the second straight waveguide 2
With the 3rd straight waveguide 3, finally realize 6 tunnel equivalent outputs and become 4 tunnel equivalent outputs.
Embodiment 1
In the present embodiment, the structure of adjustable multi-channel terahertz ripple power splitter (figure the most as previously mentioned
1 and 2), concrete structure is no longer superfluous at this chats.The structure of adjustable multi-channel terahertz ripple power splitter
Parameter is particularly as follows: the material of poroid hollow out flat board is silicon, when temperature is 25 DEG C, and refractive index
Being 3.45, when temperature becomes 650 DEG C, refractive index is 3.6.The air of two-dimension periodic arrangement
Hole photonic crystal is the airport photonic crystal arrays in equilateral triangle periodic distribution, radius
Being 24.96 μm, the distance between the airport center of circle is 78 μm.First airport combination, the
Two airport combinations, the 3rd airport are combined, the 4th airport combines, the 5th airport combines,
6th airport combination, the 7th airport combine identical with the 8th airport combined shaped structure,
In airport combination, the radius of airport is 24.96 μm, and the distance between the airport center of circle is
118.56μm.First airport radius is 15.6 μm, in order to realize the second y-shaped waveguide not
Decile effect, the first airport moves to upper left side with the center of the second y-shaped waveguide for initial point
23.4 μm.Second airport radius is 15.6 μm, in order to realize the first y-shaped waveguide not
Decile effect, the second airport moves with the center of the first y-shaped waveguide 10 for initial point lower section to the left
23.4 μm are moved.3rd airport and the 4th airport shape are identical, and radius is 15.6 μm,
3rd airport and the 4th airport lay respectively at the 3rd y-shaped waveguide and the 4th y-shaped waveguide
Center.The upper end airport of the 9th airport combination, both under air hole, the half of right-hand member airport
Footpath is 24.96 μm, between right-hand member airport and upper end airport, the both under air center of circle away from
From being 57.6 μm, the radius of left end airport is 19.5 μm, and left end airport is empty with right-hand member
Distance between the pore center of circle is 54.6 μm.
Four y-shaped waveguide passages and one are had between the signal input part of the present invention and six outfans
Individual multiple-mode interfence region, the THz wave of input is divided into 2 tunnels through multiple-mode interfence region, then through two
Individual second level y-shaped waveguide passage is divided into 4 tunnels, and wherein 2 tunnels are again through two third level Y shape ripples
Pathway is divided into 4 tunnels, it is achieved 6 road constant power output THz waves；It addition, by regulation temperature
Degree changes the refractive index of local flat, two grades of y-shaped waveguides can be made not carry out merit and divide, real
Existing 6 tunnels become the adjustable effect of 4 road constant power output THz waves.Concrete: temperature is not adjusted
During the heating of joint region, when i.e. temperature is 25 DEG C, when input THz wave frequency is 1THz, merit is divided
Device steady-state field scattergram is as shown in Figure 3；When temperature regulated zone is heated to 650 DEG C, defeated
Enter when THz wave frequency is 1THz power splitter steady-state field scattergram as shown in Figure 4.Temperature
Before and after change, the delivery efficiency of each outfan is as shown in table 1.In summary it can be seen, proposed
Design preferably achieves an adjustable multi-channel terahertz ripple power splitter.
The delivery efficiency of each port of table 1
Claims (9)
1. an adjustable multi-channel terahertz ripple power splitter based on hollow out slab construction, its feature
Be to include poroid hollow out flat board (37), airport (35), the first straight waveguide (1),
Two straight waveguides (2), the 3rd straight waveguide (3), the 4th straight waveguide (4), the 5th straight line
Waveguide (5), the 6th straight waveguide (6), the 7th straight waveguide (7), the 8th straight waveguide (8),
9th straight waveguide (9), the first y-shaped waveguide (10), the second y-shaped waveguide (11),
Three y-shaped waveguides (12), the 4th y-shaped waveguide (13), the first airport combination (14), the
Two airports combine (15), the 3rd airport combines (16), the 4th airport combination (17),
5th airport combines (18), the 6th airport combines (19), the 7th airport combination (20),
8th airport combination (21), multiple-mode interfence region (22), the first airport (23), the
Two airports (24), the 3rd airport (25), the 4th airport (26), signal input part
(27), the first signal output part (28), secondary signal outfan (29), the 3rd signal are defeated
Go out end (30), the 4th signal output part (31), the 5th signal output part (32), the 6th letter
Number outfan (33), the 9th airport combination (36)；Poroid hollow out flat board (37) is provided with
In the airport photonic crystal (10) of two dimension equilateral triangle periodic arrangement, removing part two dimension
After the airport photonic crystal (10) of periodic arrangement, poroid hollow out flat board defines first straight
Line waveguide (1), the second straight waveguide (2), the 3rd straight waveguide (3), the 4th straight waveguide
(4), the 5th straight waveguide (5), the 6th straight waveguide (6), the 7th straight waveguide (7),
8th straight waveguide (8), the 9th straight waveguide (9), the first y-shaped waveguide (10), second
Y-shaped waveguide (11), the 3rd y-shaped waveguide (12), the 4th y-shaped waveguide (13) and multimode
Interference region (22), the left end of the first straight waveguide (1) is provided with signal input part (27),
The left end of the second straight waveguide (2) is provided with the 5th signal output part (32), the 3rd straight waveguide
(3) left end is provided with the 6th signal output part (33), the right-hand member of the 6th straight waveguide (6)
Being provided with the first signal output part (28), the right-hand member of the 7th straight waveguide (7) is provided with the 4th signal
Outfan (31), the right-hand member of the 8th straight waveguide (8) is provided with secondary signal outfan (29),
The right-hand member of the 9th straight waveguide (9) is provided with the 3rd signal output part (30), multiple-mode interfence region
(22) left end and the first straight waveguide (1) are connected, the right side of multiple-mode interfence region (22)
Lower end and upper right side are respectively by the 4th straight waveguide (4) and the 5th straight waveguide (5) and the
The left upper end of one y-shaped waveguide (10) and the lower-left end of the second y-shaped waveguide (11) are connected,
The lower-left end of the first y-shaped waveguide (10) and the right-hand member of the second straight waveguide (2) are connected, the
The left upper end of two y-shaped waveguides (11) and the right-hand member of the 3rd straight waveguide (3) are connected, and the 3rd
The left end of y-shaped waveguide (12), upper right side, bottom righthand side respectively with the first y-shaped waveguide (10)
Right-hand member, the left end of the 8th straight waveguide (8), the 6th straight waveguide (6) left end be connected,
The left end of the 4th y-shaped waveguide (13), upper right side, bottom righthand side respectively with the second y-shaped waveguide
(11) right-hand member, the left end of the 7th straight waveguide (7), a left side for the 9th straight waveguide (9)
End is connected, and the position of the center deviation lower-left of the first y-shaped waveguide (10) is provided with the second airport
(24), the position of the center deviation upper left of the second y-shaped waveguide (11) is provided with the first airport (23),
The center of the 3rd y-shaped waveguide (12) is provided with the 3rd airport (25), the 4th y-shaped waveguide (13)
Center be provided with the 4th airport (26), the first y-shaped waveguide (10) and the second straight waveguide
(2), the junction of the 4th straight waveguide (4) is respectively equipped with the first airport combination (14)
With the 3rd airport combination (16), the second y-shaped waveguide (11) and the 3rd straight waveguide (3),
The junction of the 5th straight waveguide (5) is respectively equipped with the second airport combination (15) and the 4th
Airport combination (17), the 3rd y-shaped waveguide (12) and the 6th straight waveguide (6), the 8th
The junction of straight waveguide (8) is provided with the 5th airport combination (18) and the 7th airport group
Close (20), the 4th y-shaped waveguide (13) and the 7th straight waveguide (7), the 9th straight waveguide
(9) junction is provided with the 6th airport combination (19) and the 8th airport combination (21),
9th airport combination (36) is positioned at the right side middle-end in multiple-mode interfence region (22).
A kind of multi-channel terahertz ripple power splitter the most according to claim 1, its feature exists
Material in described poroid hollow out flat board (36) is silicon, when temperature is 25 DEG C, and refraction
Rate is 3.45, and when temperature becomes 650 DEG C, refractive index is 3.6.
A kind of adjustable multichannel based on hollow out slab construction the most according to claim 1 is too
Hertz wave power splitter, it is characterised in that the airport photonic crystal of described two-dimension periodic arrangement
(35) radius is 24～25 μm, and the distance between the airport center of circle is 76～80 μm.
A kind of adjustable multichannel based on hollow out slab construction the most according to claim 1 is too
Hertz wave power splitter, it is characterised in that the first described airport combination (14), the second air
Hole combination (15), the 3rd airport combination (16), the 4th airport combination (17), the 5th
Airport combination (18), the 6th airport combination (19), the 7th airport combination (20) and
8th airport combination (21) shape and structure is identical, and in airport combination, the radius of airport is equal
Being 24～25 μm, the distance between the airport center of circle is 118～119 μm.
A kind of adjustable multichannel based on hollow out slab construction the most according to claim 1 is too
Hertz wave power splitter, it is characterised in that described the first airport (23) radius is 15～16 μm,
First airport (23) is that initial point moves to upper left side with the center of the second y-shaped waveguide (11)
23～24 μm.
A kind of adjustable multichannel based on hollow out slab construction the most according to claim 1 is too
Hertz wave power splitter, it is characterised in that described the second airport (24) radius is 15～16 μm,
Second airport (24) is that initial point lower section to the left is moved with the center of the first y-shaped waveguide (10)
23～24 μm are moved.
A kind of adjustable multichannel based on hollow out slab construction the most according to claim 1 is too
Hertz wave power splitter, it is characterised in that the 3rd described airport (25) and the 4th airport (26)
Shape is identical, and radius is 15～16 μm, the 3rd airport (25) and the 4th airport (26)
Lay respectively at the 3rd y-shaped waveguide (12) and the center of the 4th y-shaped waveguide (13).
A kind of adjustable multichannel based on hollow out slab construction the most according to claim 1 is too
Hertz wave power splitter, it is characterised in that the upper end air of the 9th described airport combination (36)
Hole, both under air hole, the radius of right-hand member airport are 24～25 μm, and right-hand member airport is with upper
End distance between airport, the both under air center of circle is 57～58 μm, the half of left end airport
Footpath is 19～20 μm, and the distance between left end airport and the right-hand member airport center of circle is
54～55 μm.
A kind of adjustable multichannel based on hollow out slab construction the most according to claim 1 is too
Hertz wave power splitter, it is characterised in that poroid hollow out flat board (37) is provided with the temperature of rectangle and adjusts
Joint region (34), the left boundary of temperature regulated zone (34) passes the first y-shaped waveguide (10)
With the center of circle of first airport above the second y-shaped waveguide (11) low order end, temperature regulates
Region (34) transverse width is 4 times of adjacent two airport distance of center circle.
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| CN105911643B CN105911643B (en) | 2018-10-16 |
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