CN1588149A - Tunable light wave guide dispersion compensator controlled by two-section erverse electrode oriented coupler - Google Patents
Tunable light wave guide dispersion compensator controlled by two-section erverse electrode oriented coupler Download PDFInfo
- Publication number
- CN1588149A CN1588149A CNA2004100531613A CN200410053161A CN1588149A CN 1588149 A CN1588149 A CN 1588149A CN A2004100531613 A CNA2004100531613 A CN A2004100531613A CN 200410053161 A CN200410053161 A CN 200410053161A CN 1588149 A CN1588149 A CN 1588149A
- Authority
- CN
- China
- Prior art keywords
- optical waveguide
- directional coupler
- length
- binodal
- dispersion compensator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000006185 dispersion Substances 0.000 title claims abstract description 22
- 230000003287 optical effect Effects 0.000 claims abstract description 45
- 230000008878 coupling Effects 0.000 claims abstract description 15
- 238000010168 coupling process Methods 0.000 claims abstract description 15
- 238000005859 coupling reaction Methods 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 claims abstract description 3
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000005452 bending Methods 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 8
- 235000012239 silicon dioxide Nutrition 0.000 description 4
- 239000000377 silicon dioxide Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 239000013307 optical fiber Substances 0.000 description 2
- 238000001259 photo etching Methods 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001312 dry etching Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Images
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
The invention discloses a regulatable optical waveguide dispersion compensator controlled by binodal reverse-electrode orientation coupler, arranging parallel I/O optical waveguides in a part of the closed-loop optical waveguide microring to compose an orientation coupler, where the effective length of the orientation coupler is once to thrice as long as its coupled length and is a length influencing the coupling in the graded separation, two driving electrodes of the same length are arranged on the orientation coupler and reversely arranged on two waveguides composing the orientation coupler, thus composing the binodal reverse-electrode structural 2x2 input controllable orientation coupler. This structural regulable coupling mechanism can realize regulable coupling in the whole range and can have a bending shape, and even for a circular optical microring, it need not adopt special structure processing, thus unable to enlarge the circumference of the optical microring. This brings about extreme flexibility to the design and besides, it has extreme flexibility in designing and realizing multiple-stage cascade.
Description
Technical field
The present invention relates to optical component, particularly a kind of tunable optical waveguide dispersion compensator.
Background technology
Along with the increase of traffic rate in the optical communication, the chromatic dispersion in the optical fiber has become the principal element of restriction light transmission distance, for this reason, the light wave that transmits in the optical fiber is carried out dispersion compensation become of crucial importance.At present, people have proposed many optical dispersion compensation schemes, and this is wherein based on the all-pass filter principle, and adopting the integrated type optical waveguide optical dispersion compensator of the little ring structure of light is the scheme that has prospect.
Adopt the optical waveguide dispersion compensator of the little ring structure of light, but will realize the dispersion compensation adjustable function, then need to have the I/O Coupling Control mechanism of the little ring of light.The people such as Mai Desheng of U.S.'s Bell Laboratory (Bell Labs) have drawn and have adopted 2 * 2 Mach-Zehnder interference structures to realize Coupling Control, but because the restriction on the mechanism, there is restriction in the realization of coupling coefficient, and, because structural requirement, have to increase the girth of the little ring of overall optical, be unfavorable for using.
Summary of the invention
Purpose of the present invention is at the tunable optical waveguide dispersion compensator that a kind of binodal reverse electrode directional coupler control is provided, and its dispersion compensation adjustable control function realizes by the directional coupler that employing has binodal reverse electrode structure.
The technical solution adopted for the present invention to solve the technical problems is: constitute the waveguide part of closed loop at the little ring of optical waveguide along it, parallel I/O optical waveguide is set, constitute directional coupler, the effective length of directional coupler, for 1 times of its coupling length between the 3 double-length degree, effective length is the length that counts the coupling influence of gradual change separation place, the drive electrode of two sections equal length is set on directional coupler, two segment electrodes oppositely are arranged in two waveguides that constitute directional coupler, constitute the controlled directional coupler of 2 * 2 inputs with binodal reverse electrode structure.
The little ring of optical waveguide can be circular, has the arch section of directional coupler in the corresponding I/O waveguide with its formation, has the identical center of circle with the little ring of optical waveguide, and the directional coupler of this moment has curved shape.
The little ring of optical waveguide can be that track and field is run-track shaped, and straight wave guide is adopted in corresponding I/O waveguide, partly constitutes the directional coupler of straight parallel waveguide with the straight wave guide of the little ring of optical waveguide.
The advantage that the present invention has:
1) can realize that the gamut coupling is adjustable, this design for the integrated type optical waveguide optical dispersion compensator provides a scheme;
2) owing to adopt directional coupling structure, and directional coupler can have curved shape, even to the little ring of circular light, also do not need to adopt special structure treatment, can not increase the girth of the little ring of light.This has brought great dirigibility for the design of device;
3) owing to the light color adjustable dispersion compensator with desirable characteristics often also needs to realize by multistage cascade scheme, adopt the circular configuration among the present invention, can reasonably well utilize round girth to carry out Coupling Control, this has also brought great dirigibility for the design of multistage cascade and realization.
Description of drawings
Fig. 1 is the tunable optical waveguide dispersion compensation of binodal reverse electrode directional coupler control, and the little ring of optical waveguide is circular among the figure;
Fig. 2 is the tunable optical waveguide dispersion compensator of binodal reverse electrode directional coupler control, and the little ring of optical waveguide is that track and field is run-track shaped among the figure;
Embodiment
Fig. 1 and Fig. 2 are the tunable optical waveguide dispersion compensators of binodal reverse electrode directional coupler control.The little ring 1 of optical waveguide is circular among Fig. 1, and the little ring 11 of optical waveguide is run-track shaped for track and field among Fig. 2.Wherein 1 and 11 are the little rings of optical waveguide, 2 and 12 is I/O coupling optical waveguides, 3 and 13 for having the directional coupler part of binodal counter-rotating electrode structure, drive electrode 4 and 14 has constituted the binodal electrode part of reversing respectively with drive electrode 5 and 15.Certainly, be noted that here electrode structure only is schematically, specifically will be provided with according to the driving of the index of refraction effects of being utilized.
Embodiments of the present invention are a lot, are embodiment at this with silicon dioxide multilayer planar optical waveguide technology, but only limit to this embodiment by no means.
With silicon chip or glass with certain thickness silicon dioxide layer is backing material, grows the silicon dioxide sandwich layer that mixes and have relative high index of refraction value, and with photoetching and dry etching, the sandwich layer waveguide of the light color adjustable dispersion compensator of producing.After finishing sandwich layer, regeneration grows the low slightly upper limiting layer of refractive index.To silicon dioxide optical waveguide, can utilize its thermo-optic effect to realize the tunable characteristic of device.That is, on upper limiting layer, steam the last layer crome metal, adopt photoetching and corroding method, produce heating electrode at the directional coupler position with binodal counter-rotating electrode structure.By this heating electrode excitation thermo-optic effect, thereby obtain 2 * 2 transvar coupler, realize that the coupling between little ring of light and I/O optical waveguide is adjustable, finally obtain adjustable optical dispersion compensator.
Claims (3)
1. the tunable optical waveguide dispersion compensator of binodal reverse electrode directional coupler control, it is characterized in that: constitute the waveguide part of closed loop along it at the little ring of optical waveguide, parallel I/O optical waveguide is set, constitute directional coupler, the effective length of directional coupler, for 1 times of its coupling length between the 3 double-length degree, effective length is the length that counts the coupling influence of gradual change separation place, the drive electrode of two sections equal length is set on directional coupler, two segment electrodes oppositely are arranged in two waveguides that constitute directional coupler, constitute the controlled directional coupler of 2 * 2 inputs with binodal reverse electrode structure.
2. the tunable optical waveguide dispersion compensator of a kind of binodal reverse electrode directional coupler control according to claim 1, it is characterized in that: the little ring of optical waveguide is circular, the arch section that has directional coupler in the corresponding I/O waveguide with its formation, have the identical center of circle with the little ring of optical waveguide, the directional coupler of this moment has curved shape.
3. the tunable optical waveguide dispersion compensator of a kind of binodal reverse electrode directional coupler control according to claim 1, it is characterized in that: the little ring of optical waveguide is that track and field is run-track shaped, straight wave guide is adopted in corresponding I/O waveguide, partly constitutes the directional coupler of straight parallel waveguide with the straight wave guide of the little ring of optical waveguide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100531613A CN1255693C (en) | 2004-07-19 | 2004-07-19 | Tunable light wave guide dispersion compensator controlled by two-section erverse electrode oriented coupler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100531613A CN1255693C (en) | 2004-07-19 | 2004-07-19 | Tunable light wave guide dispersion compensator controlled by two-section erverse electrode oriented coupler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1588149A true CN1588149A (en) | 2005-03-02 |
| CN1255693C CN1255693C (en) | 2006-05-10 |
Family
ID=34602756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100531613A Expired - Fee Related CN1255693C (en) | 2004-07-19 | 2004-07-19 | Tunable light wave guide dispersion compensator controlled by two-section erverse electrode oriented coupler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1255693C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280899A (en) * | 2014-10-27 | 2015-01-14 | 山东大学 | Silicon-based thermo-optic modulator based on micro-ring resonant cavity |
| CN113267848A (en) * | 2020-02-17 | 2021-08-17 | 华为技术有限公司 | Multi-wavelength dispersion compensation device, related product and optical signal processing method |
-
2004
- 2004-07-19 CN CNB2004100531613A patent/CN1255693C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280899A (en) * | 2014-10-27 | 2015-01-14 | 山东大学 | Silicon-based thermo-optic modulator based on micro-ring resonant cavity |
| CN104280899B (en) * | 2014-10-27 | 2016-11-23 | 山东大学 | Silica-based Thermo-optical modulator based on micro-ring resonant cavity |
| CN113267848A (en) * | 2020-02-17 | 2021-08-17 | 华为技术有限公司 | Multi-wavelength dispersion compensation device, related product and optical signal processing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1255693C (en) | 2006-05-10 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20070201805A1 (en) | Optical transmission device and light-receiving module | |
| CN115016062B (en) | Planar lightwave circuit optical splitter/mixer | |
| EP2447761A1 (en) | Planar lightwave circuit type variable optical attenuator | |
| CN110412682A (en) | The high double-refraction photon crystal fiber filled based on gold nano-material and the Polarization filter using the optical fiber | |
| JPH09189817A (en) | Optical waveguide for optical branching unit | |
| WO2016101470A1 (en) | Mode filtering optical fibre | |
| CN215415966U (en) | Photon filter based on Cantor photonic crystal and graphene composite structure | |
| JP2003315752A (en) | Wavelength dispersion compensating filter | |
| CN115016154A (en) | Polarization filtering type intensity modulator based on lithium niobate thin film | |
| CN1255693C (en) | Tunable light wave guide dispersion compensator controlled by two-section erverse electrode oriented coupler | |
| CN113934024A (en) | Photon filter based on PD photonic crystal and graphene composite structure | |
| CN111624705B (en) | Wide forbidden band chirp mixed plasmon waveguide Bragg grating | |
| CN2711757Y (en) | Double-section inverse electrode directional coupler controlled adjustable light waveguide chromatic dispersion compensator | |
| JPH0660982B2 (en) | Waveguide-type Matsuha-Tsender optical interferometer | |
| CN111650694A (en) | Wavelength division multiplexer based on three-core graphene optical fiber | |
| CN116520492A (en) | Directional coupling device | |
| US11835759B2 (en) | Optical waveguide circuit | |
| JP4263027B2 (en) | Waveguide type optical signal processor | |
| CN215415967U (en) | Adjustable two-channel photon filter | |
| CN115145062A (en) | Optical device | |
| JPH03213829A (en) | Waveguide type optical branching element operating at wide-wavelength-range | |
| JP2003014958A (en) | Waveguide type optical multiplexer/demultiplexer circuit | |
| CN100580488C (en) | Broad band tunable optical fibre band filter | |
| CN113791462B (en) | Photon filter based on Cantor photon crystal and graphene composite structure | |
| CN113687451B (en) | Multichannel photon filter based on binary Rudin-shape photon crystal pair |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |