CN1253736C - Light wave guide micro ring device coupled by bending shape oriented coupler - Google Patents
Light wave guide micro ring device coupled by bending shape oriented coupler Download PDFInfo
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- CN1253736C CN1253736C CN 200410053160 CN200410053160A CN1253736C CN 1253736 C CN1253736 C CN 1253736C CN 200410053160 CN200410053160 CN 200410053160 CN 200410053160 A CN200410053160 A CN 200410053160A CN 1253736 C CN1253736 C CN 1253736C
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- optical waveguide
- directional coupler
- ring
- coupling
- curved shape
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- 238000005452 bending Methods 0.000 title 1
- 230000003287 optical effect Effects 0.000 claims abstract description 70
- 230000008878 coupling Effects 0.000 claims abstract description 35
- 238000010168 coupling process Methods 0.000 claims abstract description 35
- 238000005859 coupling reaction Methods 0.000 claims abstract description 35
- 230000005693 optoelectronics Effects 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000001312 dry etching Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229920000620 organic polymer Polymers 0.000 description 1
- 230000001151 other effect Effects 0.000 description 1
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Abstract
The present invention discloses an optical waveguide micro ring device coupled by a directional coupler in a curving shape. A curving shape the same with an optical waveguide micro ring with a closed ring resonance structure is adopted in a certain distance from an input/output optical waveguide, and is arranged in parallel with an optical micro ring to form the directional coupler in a curving shape. The optical power coupling between the input/output optical waveguide and the optical waveguide micro ring is realized through a light wave mode evanescent field in the waveguide. The parallel certain distance is determined according to the required coupling quantity in application. The present invention uses the directional coupler in a curing shape to set the coupling between the optical micro ring and the input/output optical waveguide in rather long distance; consequently, the input/output power coupling of optical micro rings of different sizes can be easily realized. Further, the adjustable control of the power coupling quantity can also be easily realized by the characteristics, the electro-optical effect, etc. of the directional coupler.
Description
Technical field
The present invention relates to optical component, particularly a kind of optical waveguide micro ring device.
Background technology
The optical waveguide micro-ring resonator is a kind of important fiber waveguide device structural unit, and it all has important use in optical devices such as laser instrument, optical filter, photomodulator, optical dispersion compensator.Make full use of the characteristic of optical waveguide micro-ring resonator, realize that the input of luminous power in the little ring of light and output coupling are the most basic.It requires can obtain different power coupling coefficient according to different needs.In some tunable light device based on the little ring of light, this coupling further is utilized, and the adjustment by power coupling amount realizes the adjustable of functional characteristic.
Present existing coupling scheme all are based on the coupling of I/O straight wave guide and the little interannular of light, for realizing big power coupling and being coupled controlled, have to also be designed to straight wave guide with one section in the little ring of light, the girth that this has increased the little ring of light has greatly limited the application of device.Also the someone adopts complicated Mach-Zehnder structure to carry out Coupling Control, has a strong impact on the structure and the size of device, especially, small little ring size is realized it being infeasible.
Summary of the invention
The object of the present invention is to provide a kind of optical waveguide micro ring device that adopts curved shape directional coupler coupling, can easily realize the luminous power coupling of various situations as required, what can also be used to realize to be coupled is adjustable.
The technical solution adopted for the present invention to solve the technical problems is: on I/O optical waveguide certain distance, adopt and the identical curved shape of the little ring of the optical waveguide with close loop resonance structure, and be provided with the little ring of optical waveguide is parallel, constitute the directional coupler of curved shape, the luminous power that realizes I/O optical waveguide and the little interannular of optical waveguide by light wave pattern evanescent field in the waveguide is coupled, and parallel certain distance is measured big or small needs according to coupling in using and determined.
The little ring of I/O optical waveguide and optical waveguide is provided with in same optical waveguide plane, on the parallel distance.
I/O optical waveguide and the little ring of optical waveguide are provided with in different optical waveguide planes, on the parallel distance; The aspect at the little ring of optical waveguide place is above or below the aspect of I/O optical waveguide.
The little ring of said optical waveguide is the little ring of any closed loop shape light.
The useful effect that the present invention has is:
1) the present invention adopts the directional coupler of curved shape, and the coupling between little ring of light and I/O optical waveguide can be set on quite long distance, thereby can easily realize the little ring I/O of the light power coupling of different sizes; Especially,, can not need structure to be set especially again, also just not need to increase the girth of little ring because of the needs of coupling for the little ring of annular light;
2) utilize the characteristic of directional coupler and electrooptical effect etc., on the curved shape directional coupler that the present invention adopts, can easily realize the adjustable control of power coupling size.
Description of drawings
The optical waveguide micro ring device with any closed loop shape of the employing curved shape directional coupler coupling when Fig. 1 is same plane;
Fig. 2 is the optical waveguide micro ring device with any closed loop shape of the employing curved shape directional coupler coupling during aspect up and down;
Employing curved shape directional coupler coupling when Fig. 3 is same plane have a round-shaped optical waveguide micro ring device;
Fig. 4 is the round-shaped optical waveguide micro ring device that has of the up and down employing curved shape directional coupler coupling during aspect.
Embodiment
The optical waveguide micro ring device with any closed loop shape of the employing curved shape directional coupler coupling when being same plane as shown in Figure 1; In Fig. 1 (a) and (b), 1 is the I/O waveguide, and 2 is the little ring of any closed loop shape light, the directional coupler of 3 curved shapes.
As shown in Figure 2, be the optical waveguide micro ring device with any closed loop shape of the employing curved shape directional coupler coupling during aspect up and down; Among Fig. 2 (a) and (b), (c), 11 are the I/O waveguide, and 12 is the little ring of any closed loop shape light, and 13 is the directional coupler of curved shape.I/O waveguide 11 is in last aspect 15 among Fig. 2 (b), and the little ring 12 of closed loop shape light is positioned at the subsurface 14 of I/O waveguide 11 arbitrarily.I/O waveguide 11 is at subsurface 14 among Fig. 2 (c), and the little ring 12 of closed loop shape light is positioned at the last aspect 15 of I/O waveguide 12 arbitrarily.
Employing curved shape directional coupler coupling when being same plane as shown in Figure 3, have a round-shaped optical waveguide micro ring device; In Fig. 3 (a) and (b), 21 are the I/O waveguide, and 22 is the little ring of round-shaped light, the directional coupler of 23 curved shapes.
As shown in Figure 4, be the round-shaped optical waveguide micro ring device that has of the up and down employing curved shape directional coupler coupling during aspect; Among Fig. 4 (a) and (b), (c), 31 are the I/O waveguide, and 32 is the little ring of round-shaped light, and 33 is the directional coupler of curved shape.I/O waveguide 31 is in last aspect 35 among Fig. 4 (b), and the little ring 32 of round-shaped light is positioned at the subsurface 34 of I/O waveguide 31.I/O waveguide 31 is at subsurface 34 among Fig. 4 (c), and the little ring 32 of round-shaped light is positioned at the upper strata 35 of I/O waveguide 32.
Embodiments of the present invention are a lot, are embodiment at this with organic polymer multilayer planar optical waveguide technology, but only limit to this embodiment by no means.
With silicon chip or glass is backing material, adopts spin coated film forming legal system to make lower limit layer, makes sandwich layer again, and with photoetching and dry etching, produces the waveguide figure with I/O optical waveguide and the little ring of optical waveguide.Apply upper limiting layer after finishing sandwich layer.The curved shape directional coupler I/O coupled structure of I/O optical waveguide in the time of just can having obtained copline thus and the little interannular of light.Directional coupler partly utilize electrooptical effect or other effect in addition electrode realize that the power that promptly can control between the little ring of light and I/O waveguide is coupled.
To planar structure up and down, can be backing material with silicon chip or glass equally, adopt spin coated film forming legal system to make the lower limit layer of ground floor, make the sandwich layer of ground floor again, and with photoetching and dry etching, produce have the I/O optical waveguide waveguide figure of (or the little ring of optical waveguide).Apply upper limiting layer after finishing sandwich layer.This upper limiting layer also will be as the lower limit layer of the second layer.Follow and make and the waveguide etching of the little ring of optical waveguide (or I/O optical waveguide) and the coating of upper limiting layer by the sandwich layer of the second layer.The optical waveguide micro ring device of the I/O optical waveguide in the time of just can having finished aspect up and down thus and the employing curved shape directional coupler coupling of the little interannular of light.
Claims (4)
1. optical waveguide micro ring device that adopts curved shape directional coupler coupling, it is characterized in that: on I/O optical waveguide certain distance, adopt and the identical curved shape of the little ring of the optical waveguide with close loop resonance structure, and be provided with the little ring of optical waveguide is parallel, constitute the directional coupler of curved shape, the luminous power that realizes I/O optical waveguide and the little interannular of optical waveguide by light wave pattern evanescent field in the waveguide is coupled, and parallel certain distance is measured big or small needs according to coupling in using and determined.
2. a kind of optical waveguide micro ring device that adopts curved shape directional coupler coupling according to claim 1 is characterized in that: the little ring of I/O optical waveguide and optical waveguide is provided with in same optical waveguide plane, on the parallel distance.
3. a kind of optical waveguide micro ring device that adopts curved shape directional coupler coupling according to claim 1 is characterized in that: I/O optical waveguide and the little ring of optical waveguide are provided with in different optical waveguide planes, on the parallel distance; The aspect at the little ring of optical waveguide place is above or below the aspect of I/O optical waveguide.
4. according to claim 1,2 or 3 described a kind of optical waveguide micro ring devices that adopt the coupling of curved shape directional coupler, it is characterized in that: the little ring of said optical waveguide is the little ring of any closed loop shape light.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053160 CN1253736C (en) | 2004-07-19 | 2004-07-19 | Light wave guide micro ring device coupled by bending shape oriented coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410053160 CN1253736C (en) | 2004-07-19 | 2004-07-19 | Light wave guide micro ring device coupled by bending shape oriented coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588143A CN1588143A (en) | 2005-03-02 |
| CN1253736C true CN1253736C (en) | 2006-04-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410053160 Expired - Fee Related CN1253736C (en) | 2004-07-19 | 2004-07-19 | Light wave guide micro ring device coupled by bending shape oriented coupler |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103163664B (en) * | 2013-04-02 | 2015-10-07 | 杭州电子科技大学 | Based on the frequency-selecting filter of micro-ring resonant cavity |
| CN104062712A (en) * | 2014-07-17 | 2014-09-24 | 广东威创视讯科技股份有限公司 | Smoothing structure applied to LED and LED display screen |
| CN104100932B (en) * | 2014-07-31 | 2016-03-02 | 广东威创视讯科技股份有限公司 | Be applied to the filter structure of LED, the method for LED display and acquisition optical loss coefficient |
| CN106054317B (en) * | 2016-06-03 | 2019-11-15 | 浙江大学 | A kind of micro-loop filter of the polarization insensitive based on silicon nanowires waveguide |
| CN110764284A (en) * | 2019-10-18 | 2020-02-07 | 中国地质大学（武汉） | Large-range bandwidth-adjustable microwave photon filter based on silicon-based micro-ring |
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2004
- 2004-07-19 CN CN 200410053160 patent/CN1253736C/en not_active Expired - Fee Related
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| CN1588143A (en) | 2005-03-02 |
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