CN103905139A - Reconfigurable add-drop multiplexer and signal add drop multiplexing method - Google Patents
Reconfigurable add-drop multiplexer and signal add drop multiplexing method Download PDFInfo
- Publication number
- CN103905139A CN103905139A CN201210572522.XA CN201210572522A CN103905139A CN 103905139 A CN103905139 A CN 103905139A CN 201210572522 A CN201210572522 A CN 201210572522A CN 103905139 A CN103905139 A CN 103905139A
- Authority
- CN
- China
- Prior art keywords
- photonic crystal
- waveguide
- crystal
- add
- signal
- 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
Images
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
The invention relates to a reconfigurable add-drop multiplexer and a signal add drop multiplexing method. The multiplexer comprises a first photonic crystal and a second photonic crystal made from magneto-optic material columns. A third photonic crystal is arranged between the first photonic crystal and the second photonic crystal. A unidirectional waveguide is formed between the third photonic crystal and the first photonic crystal and between the third photonic crystal and the second photonic crystal. The middle portion of the third photonic crystal is provided with a single-mode defect cavity formed through the magneto-optic material column. The multiplexer further comprises a magnetic field generator for generating a control magnetic field applied onto the first photonic crystal, the second photonic crystal and the single-mode defect cavity. The reconfigurable add-drop multiplexer and the signal add drop multiplexing method of the invention are implemented, by adjusting externally-added magnetic field parameters, the multiplexer can be used to perform uploading and downloading on signals of different frequencies in any channel, and the signal input and output port can be selected. The multiplexer is not provided with a movable component, advantages of simple design method, compact structure and reconfigurable working frequency can be realized, and the design principle meets the requirements of the next generation of intelligent optical network.
Description
Technical field
The present invention relates to photonic crystal field, more particularly, relate to a kind of restructural add-drop multiplexer of photon crystal structure and use photonic crystal to carry out the method for signal add drop multiplex.
Background technology
Reconfigurable add drop multiplex technology is a core technology of optical-fiber network of future generation.Photon crystal structure is because its constraint, regulating power to light is strong, the related device compact conformation of its making, flexible design, can reach wavelength magnitude, meet the integrated growth requirement of element height, thereby use photonic crystal making bifurcation multiplex apparatus to be more and more subject to people's attention.
The plane add drop multiplex filter of current employing photonic crystal designs, divides and is mainly divided into two kinds by the kind of coupler, and one is photon crystal micro cavity, and another kind is micro-ring structure.What first propose photon crystal micro cavity structure is the group of masschusetts, u.s.a science and engineering, and they propose two kinds of structures: single chamber coupler or two-chamber coupler.Wherein, for single chamber coupler, want to obtain good filtering performance, must excite two symmetric degenerate modes of difference in single chamber simultaneously, this designs complicated, very difficult realization for real material; Relatively easy is two-chamber coupler design, and researcher introduced the reflecting mechanism method of (as reflection cavity optionally) afterwards.But because its filtering characteristic is subject to the phase-modulation between two-chamber consumingly, very high to the requirement of design and manufacture, what therefore more research in recent years adopted is the coupler of micro-ring structure.Although can reach very high filtration efficiency in such structural theory, micro-ring structure also has radiation loss and other restrictions that self cannot eliminate.In addition, if coupler is not carried out the means of dynamic adjustments, once above-mentioned add-drop multiplexer is produced, can only carry out add drop multiplex to fixing frequency.
The conventional means that operating frequency is reconstructed are to utilize the deflection of electrical micro-machine control micro mirror at present, but its complex process, yields is low, and owing to there being moving-member, easy to wear, affect the life-span.Also have in addition the method such as the micro-ring of the heating of employing, change liquid-crystal refractive-index to realize the control method to microcavity resonance frequency.
Summary of the invention
The object of the invention is to, for existing add drop multiplex scheme complex process, yields is low, and owing to there being moving-member, easy to wear, affect the defect in life-span, a kind of add-drop multiplexer that can reconstruct is provided, with by regulating outfield, the frequency of required download is carried out to reconstruct easily.
Solution of the above problems of the present invention is: construct a kind of restructural add-drop multiplexer, for coupled signal, comprise the first photonic crystal and the second photonic crystal, between the first photonic crystal and the second photonic crystal, be provided with three-photon crystal, the photonic crystal that the first photonic crystal and the second photonic crystal form for magneto-optic memory technique post; The photonic crystal that three-photon crystal forms for non-magneto-optic memory technique post; Three-photon crystal forms and has the common waveguide of unidirectional guided wave performance, local waveguide respectively and between the first photonic crystal, the second photonic crystal, in three-photon crystal, comprise a single mode defect cavity being formed by magneto-optic memory technique post, for the coupling cavity between common waveguide and local waveguide, for be coupled common waveguide with the signal of coupling cavity resonance frequency in local waveguide, and in Coupled Local waveguide with the signal of coupling cavity resonance frequency in common waveguide; Restructural add-drop multiplexer also comprises magnetic field generator, for generation of being applied to the controlling magnetic field that is parallel to Z direction in the first photonic crystal, the second photonic crystal and single mode defect cavity, controlling magnetic field makes signal at common waveguide, local waveguide one way propagation, carries out resonance coupling in single mode defect cavity.
Restructural add-drop multiplexer of the present invention, the first photonic crystal and the second photonic crystal are square lattice lattice structure, and three-photon crystal is and the square lattice lattice structure of the square lattice dot matrix angle at 45 ° of the first photonic crystal, the second photonic crystal.
Restructural add-drop multiplexer of the present invention, the material that the first photonic crystal, the second photonic crystal and single mode defect cavity are used is magneto-optic memory technique, comprises yttrium iron garnet or other magnet-optical medium; The formation of three-photon crystal is non-magneto-optic memory technique, comprises aluminium or other high-index material.
Restructural add-drop multiplexer of the present invention, common waveguide is linear pattern waveguide, local waveguide is the fold-line-shaped waveguide that waveguide port is positioned at homonymy.
The present invention also provides a kind of signal add drop multiplex method, comprises the following steps:
S100, form the first photonic crystal and the second photonic crystal by identical magneto-optic memory technique post periodic arrangement, determine cycle and the size of described magneto-optic memory technique post according to operating frequency value, operating frequency is arranged in the forbidden band of photonic crystal;
S200, between the first photonic crystal and the second photonic crystal, introduce the three-photon crystal that formed by non-magneto-optic memory technique post, determine cycle and the pillar size of described three-photon crystal according to operating frequency, operating frequency is arranged in the forbidden band of photonic crystal; The interface of the first photonic crystal, the second photonic crystal and three-photon crystal is respectively common waveguide and the local waveguide of one way propagation;
S300, in three-photon crystal center, resonance frequency is set and equals the single mode defect cavity of operating frequency;
S400, in the first photonic crystal, the second photonic crystal and single mode defect cavity, apply the controlling magnetic field that is parallel to Z direction, controlling magnetic field makes signal at common waveguide, local waveguide one way propagation, carries out resonance coupling in single mode defect cavity.
Signal add drop multiplex method of the present invention, the first photonic crystal and the second photonic crystal are square lattice lattice structure, and three-photon crystal is and the square lattice lattice structure of the square lattice dot matrix angle at 45 ° of the first photonic crystal, the second photonic crystal.
Signal add drop multiplex method of the present invention, the material that the first photonic crystal, the second photonic crystal and single mode defect cavity are used is magneto-optic memory technique, comprises yttrium iron garnet or other magnet-optical medium; The formation of three-photon crystal is non-magneto-optic memory technique, comprises aluminium or other high-index material.
Signal add drop multiplex method of the present invention, common waveguide is linear pattern waveguide, local waveguide is the fold-line-shaped waveguide that waveguide port is positioned at homonymy.
Signal add drop multiplex method of the present invention, by the frequency that puts on the upper and lower year signal of magnetic field control in single mode defect cavity.
The present invention also provides a kind of multi channel signals add-drop multiplexer, comprise multiple restructural add-drop multiplexing modules, multiple download one-way waveguides, multiple one-way waveguides of uploading, the first photonic crystal of each signal add-drop multiplexing module, the second photonic crystal, three-photon crystal are mutually the same, the size of single mode defect cavity is mutually the same, and the common waveguide of each restructural add-drop multiplexer is spliced into a waveguide.
Implement restructural add-drop multiplexer of the present invention and signal add drop multiplex method, there is following beneficial effect: by regulating additional magnetic field parameter that multiplexer can be carried out upper and lower year the signal of different frequency in any passage, and can select signal input, output port.This multiplexer is without moving-member, and method for designing is simple, compact conformation, and operating frequency restructural, design principle meets the demand of ASON of future generation.
Brief description of the drawings
Below in conjunction with Figure of description, the present invention will be described, wherein:
Fig. 1 is principle assumption diagram of the present invention;
Fig. 2 is the first example structure schematic diagram;
Fig. 3 is the graph of a relation of operating frequency and the magnetic field intensity of single mode defect cavity of the present invention;
Fig. 4 is the laser propagation effect figure of the first embodiment download signal to local port 321;
Fig. 5 is the transmission curve of the first embodiment download signal to local port 321;
Fig. 6 is the laser propagation effect figure of the first embodiment download signal to local port 322;
Fig. 7 is the transmission curve of the first embodiment download signal to local port 322;
Fig. 8 is the first embodiment is uploaded signal multiplexing laser propagation effect figure by local port 321;
Fig. 9 is the first embodiment is uploaded signal multiplexing laser propagation effect figure by local port 322;
Figure 10 is second embodiment of the invention;
Figure 11 is the transmission curve of the second embodiment;
Figure 12 a is that the second embodiment downloads the laser propagation effect figure of 4.64354GHz signal to the first port;
Figure 12 b is that the second embodiment downloads the laser propagation effect figure of 4.64354GHz signal to the second port;
Figure 12 c is the laser propagation effect figure that the second embodiment downloads 4.66GHz signal to the three ports;
Figure 12 d is the laser propagation effect figure that the second embodiment downloads 4.66GHz signal to the four ports;
Figure 13 a is the second embodiment uploads 4.64354GHz signal laser propagation effect figure from the first port;
Figure 13 b is the second embodiment uploads 4.64354GHz signal laser propagation effect figure from the second port;
Figure 13 c is the second embodiment uploads 4.66GHz signal laser propagation effect figure from the 3rd port;
Figure 13 d is the second embodiment uploads 4.66GHz signal laser propagation effect figure from the 4th port;
Figure 14 is a multichannel restructural add-drop multiplexer architecture figure.
Embodiment
Below in conjunction with the drawings and specific embodiments and accompanying drawing, the present invention is described in detail.
Fig. 1 is the structure principle chart of restructural add-drop multiplexer of the present invention.This add-drop multiplexer the first photon crystal 1 00 and second photonic crystal 200, between the first photon crystal 1 00 and the second photonic crystal 200, be provided with the photonic crystal that three-photon crystal 300, the first photon crystal 1s 00 and the second photonic crystal 200 form for magneto-optic memory technique post; Three-photon crystal 300 respectively and between the first photon crystal 1 00, the second photonic crystal 200, form common waveguide 310, local waveguide 320, in three-photon crystal 300, comprise a single mode defect cavity 301 being formed by magneto-optic memory technique post, for carrying out signal filtering; Restructural add-drop multiplexer also comprises magnetic field generator, for generation of being applied to the controlling magnetic field that is parallel to Z direction in the first photon crystal 1 00, the second photonic crystal 200 and single mode defect cavity 301, controlling magnetic field makes signal at common waveguide 310, local waveguide 320 one way propagations, carries out resonance coupling in single mode defect cavity 301.
Be illustrated in figure 2 the first example structure schematic diagram of restructural add-drop multiplexer of the present invention, in the present embodiment, restructural add-drop multiplexer comprise the first photon crystal 1 00, the second photonic crystal 200 and be arranged on three-photon crystal 300, the three-photon crystal 300 between the two and the first photon crystal 1 00, the second photonic crystal 200 between form common waveguide 310 and local waveguide 320.The first photon crystal 1 00, the second photonic crystal 200, three-photon crystal 300 are 2 D photon crystal, and the pillar of arranging by generating period type in two-dimensional flat plate forms.Two dimensional surface be XY institute in the plane.The local waveguide 320 of formation between the second photonic crystal 200 and three-photon crystal 300 forms half " returning " character form structure, i.e. linear pattern waveguide is by twice 90-degree bent, and waveguide port is positioned at the fold-line-shaped waveguide of homonymy.Like this, be applied to the magnetic direction on the second photonic crystal 200 by adjustment, just can select the electromagnetic wave that is coupled to local waveguide 320 from which port outgoing.Because one-way transmission mould of the present invention is insensitive to the defect such as turn round, in the present embodiment, what waveguide was used is the structure of half " returning " font, and in actual use, as required, this structure also can be optimized and revised.
In the present embodiment, the first photon crystal 1 00 and the second photonic crystal 200 are the photonic crystal that yttrium iron garnet (Yttrium Iron Garnet, YIG) post forms, and are square lattice lattice structure, and radius is a
1=4.0 millimeters, lattice constant is r
1=36.8 millimeters, dielectric constant is 15 ε
0(ε
0for permittivity of vacuum).Three-photon crystal 300 is the photonic crystal that aluminium (Al) pillar forms, and is also square lattice lattice structure, with the square lattice dot matrix angle at 45 ° of the first photonic crystal, the second photonic crystal.Lattice constant r
3=26.0 millimeters, radius is a
2=3.9 millimeters, dielectric constant is taken as 10 ε
0.In three-photon crystal 300, on the position apart from common waveguide 310 and local waveguide 320 equal length, the cylinder being made up of YIG material is set, form single mode defect cavity 301, the radius of single mode defect cavity 301 is a
3=1.8 millimeters.
These are only the concrete size of the present embodiment, in the time of the signal transmission for different, above-mentioned a
1, a
2, a
3, r
1, r
3change etc. concrete numerical value adaptability.
In the present embodiment, the signal of propagation is mainly the frequency signal of 4GHz to 5GHz, a
1can suitably select 3.5 ~ 4.5 millimeters; r
1can suitably select 35.0 ~ 40.0 millimeters; r
3can be corresponding to r
1select 24.7 ~ 28.3 millimeters; The radius of single mode defect cavity 301 can suitably be selected 1.5 ~ 2.5 millimeters.Require to select concrete different size according to the operating frequency range of restructural add-drop multiplexer.
For the signal that makes transmission in common waveguide 310 and local waveguide 320 is controlled, the restructural add-drop multiplexer of the present embodiment also comprises magnetic field generator, the magnetic fields that magnetic field generator produces is at the first photon crystal 1 00, in the second photonic crystal 200 and single mode defect cavity 301, concrete, the size of controlling magnetic field in single mode defect cavity 301, can realize the filtering to different frequency signals, and at the first photon crystal 1 00, the direction in the second photonic crystal 200 magnetic fields is+Z or-the vertical paper of Z(outwards or inwards), can make the signal of propagating in common waveguide 310 and local waveguide 320 carry out one way propagation along different directions by changing magnetic direction.
The corresponding relation of concrete magnetic direction and directions of signal flow is as shown in table 1:
Table 1
In addition, the direction in above-mentioned magnetic field is the result that corresponding the present embodiment is selected YIG material and specific dimensions, in other magneto-optic memory technique, concrete size, need to recalculate or determine the guided wave direction of one-way waveguide and the corresponding relation of magnetic direction according to experiment, to redefine magnetic direction.
Be chosen in common waveguide input 311 signalization sources, place (Source), signal source produces signal ω 1, the ω 2 of multiple frequencies ... ω n, transmit along common waveguide 310, apply direction at the first photon crystal 1 00 place and be-magnetic field of Z, as seen from the above table, the signal in common waveguide can only be propagated to common waveguide output 312 from common waveguide input 311.
By can with and simulation calculation can obtain the relation of resonance frequency and the externally-applied magnetic field of single mode defect cavity 301, as shown in Figure 3.Wherein, round dot is the data that transmission spectrum calculates, and side's point is for being with the data of calculating.From two curves of Fig. 3, two cover results are almost coincide.In practical application, the operating characteristic of single mode defect cavity 301 can directly be recorded by transmission experiment.According to this curve, can obtain being applied to the magnetic field intensity in single mode defect cavity 301 by filtering wave frequency.
In conjunction with the first embodiment of the present invention, when the signal of the input input different frequency in common waveguide, and the magnetic field intensity 1000Oe(oersted in single mode defect cavity 301) time, if on the second photonic crystal 200, applying direction is-magnetic field of Z, can obtain transmission spectrum as shown in Figure 5 at local waveguide output 321 places; And when the magnetic direction applying on the second photonic crystal 200 is during for+Z, can obtain transmission spectrum as shown in Figure 7 at local waveguide output 322 places.The transmission spectrum of Fig. 5 and Fig. 7 all shows that the centre frequency of coupled signal is 4.68735GHz, is the resonance frequency of single mode defect cavity 301.
One end in common waveguide 310 increases signal source 400, while being 4.68735GHz signal to common waveguide 310 frequencies of propagation, if on the second photonic crystal 200, applying direction is-magnetic field of Z, and signal will be exported from local waveguide port 321, and signal communication effect is as shown in Figure 4.In Fig. 4, different gray scale charts is shown in the power that the moment signal strength space of taking pictures distributes.When the magnetic direction applying on the second photonic crystal 200 is during for+Z, the guided wave direction in local waveguide 320 will change thereupon, and therefore signal can only be exported from port 322.Electromagnetic wave propagation effect as shown in Figure 6.
Propagating example from the concrete signal of Fig. 4-Fig. 7 can find out, in signal " demultiplexing " process, utilize the present invention to be applied to the magnetic field size in single mode defect cavity 301 by change easily, thereby select the download signal of different frequency, overcome the defect that the each passage of not reconfigurable demultiplexing device can only certain characteristic frequency of demultiplexing.Be applied to the magnetic direction on the second photonic crystal 200 by change, can also select the signal that " demultiplexing " obtains from which signal port to export.
And in the process of signal multiplexing, as shown in Figure 8 and Figure 9, treat port 321 or 322 inputs of multiplexing signal from local waveguide 320.If the signal frequency that signal source 400 produces is 4.68735GHz, and while making magnetic field intensity in single mode defect cavity 301 be 1000Oe according to Fig. 3, treat that multiplexing signal will be coupled to common waveguide.
Being another embodiment of the present invention as shown in figure 10, is a two-channel photon crystal restructural add-drop multiplexer.In two corresponding single mode defect cavity of passage, apply respectively the magnetic field of varying strength, can realize the multiplex/demultiplex of different frequency signals in two passages.For example, when apply respectively the external magnetic field (defect cavity that label is 301a adds 975Oe, and the defect cavity that label is 301b adds 985Oe) of intensity 975Oe and 985Oe in left and right single mode defect cavity, transmission spectral line corresponding to each port as shown in figure 11.Can find out from this transmission spectral line, the output center frequency of left and right two passages is respectively 4.64354GHz and 4.66GHz.In addition, can see the isolation of two passages or good, signal does not have phase mutual interference.
Concrete, under different passages, different port, carrier wave RST can be with reference to shown in Figure 12 a ~ Figure 12 d.Wherein Figure 12 a and Figure 12 b are to be 4.64354GHz signal (demultiplexing) situation in left passage download frequency; The situation that Figure 12 c and Figure 12 d are is 4.66GHz signal in right passage download frequency.
When apply respectively the external magnetic field of intensity 975Oe and 985Oe in left and right two single mode defect cavity time, can make left single mode defect cavity there is the resonance frequency of 4.64354GHz owing to applying intensity 975Oe, apply magnetic field intensity 985Oe and can make right single mode defect cavity there is the resonance frequency of 4.66GHz; Therefore the signal of 4.64354GHz will be downloaded to left passage, and the signal of 4.66GHz will be downloaded to right passage.With reference to table 1, by adjusting the magnetic direction in passage, can obtain the design sketch of downloading at different port as Figure 12 a-12d.
In the time need to the signal of different frequency being uploaded in common waveguide 310 (signal multiplexing), take the process contrary with Figure 12 a ~ Figure 12 d: from the electromagnetic wave of local waveguide input different frequency, then be coupled in common waveguide.The design sketch of concrete propagation of electromagnetic waves is as shown in Figure 13 a ~ Figure 13 d.
Figure 12 a ~ 12d and Figure 13 a ~ 13d provide the concrete condition of two-channel photon crystal restructural add-drop multiplexer, more multichannel photonic crystal restructural add-drop multiplexer as shown in figure 14, as long as apply the magnetic field of different sizes in the corresponding single mode defect cavity of different passages, on the second photonic crystal, apply the magnetic field of different directions, can realize the multiplex/demultiplex of the signal of multiple frequencies, and the selection of input, output port.
In above all embodiment, what the first photon crystal 1 00, the second photonic crystal 200, three-photon crystal 300 used is tetragonal structure, in actual use, also can use triangular lattice structure or other lattice structure instead, as long as the common waveguide 310, local 320 waveguides that form can one-way transmission electromagnetic wave signals, single mode defect cavity 301 can coupled electromagnetic wave.
These are only the specific embodiment of the invention, can not limit scope of the present invention with this, equalization that those skilled in the art in the art do according to the present invention changes, and the change known of those skilled in that art, all should still belong to the scope that the present invention is contained.
Claims (10)
1. a restructural add-drop multiplexer, comprise the first photonic crystal (100) and the second photonic crystal (200), it is characterized in that, between described the first photonic crystal (100) and the second photonic crystal (200), be provided with three-photon crystal (300), the photonic crystal that the first photonic crystal (100) and the second photonic crystal (200) form for magneto-optic memory technique post, the photonic crystal that three-photon crystal forms for non-magneto-optic memory technique post, described three-photon crystal (300) respectively with the first photonic crystal (100), between the second photonic crystal (200), form common waveguide (310) and the local waveguide (320) with unidirectional guided wave performance, in three-photon crystal (300), comprise single mode defect cavity (301), single mode defect cavity comprises a magneto-optic memory technique post, for the coupling cavity between common waveguide (310) and local waveguide (320), the common waveguide (310) that is used for being coupled arrives in local waveguide (320) with the signal of coupling cavity resonance frequency, and arrive in common waveguide (310) with the signal of coupling cavity resonance frequency in Coupled Local waveguide (320), described restructural add-drop multiplexer also comprises magnetic field generator, is that the first photonic crystal (100), the second photonic crystal (200) and single mode defect cavity (301) provide magnetic field.
2. restructural add-drop multiplexer according to claim 1, it is characterized in that, described the first photonic crystal (100) and the second photonic crystal (200) are square lattice lattice structure, and three-photon crystal (300) is and the square lattice lattice structure of the square lattice dot matrix angle at 45 ° of the first photonic crystal, the second photonic crystal.
3. restructural add-drop multiplexer according to claim 1, is characterized in that, the material in described the first photonic crystal (100), the second photonic crystal (200) and single mode defect cavity (301) is yttrium iron garnet; Medium post in three-photon crystal (300) is aluminium.
4. restructural add-drop multiplexer according to claim 1, is characterized in that, described common waveguide (310) is linear pattern waveguide, and described local waveguide (320) is the fold-line-shaped waveguide that is positioned at homonymy with photonic crystal (200).
5. a multi channel signals add-drop multiplexer, it is characterized in that, comprise multiple as the restructural add-drop multiplexer as described in arbitrary in claim 1-4, multiple download one-way waveguides, multiple one-way waveguides of uploading, the first photonic crystal of each restructural add-drop multiplexer, the second photonic crystal, three-photon crystal are mutually the same, and the size of single mode defect cavity is mutually the same, and the common waveguide of each restructural add-drop multiplexer is spliced into a waveguide.
6. a signal add drop multiplex method, is characterized in that, comprises the following steps:
S100, form the first photonic crystal and the second photonic crystal by identical magneto-optic memory technique post periodic arrangement, determine cycle and the size of described magneto-optic memory technique post according to operating frequency value, operating frequency is arranged in the forbidden band of photonic crystal;
S200, between the first photonic crystal and the second photonic crystal, introduce the three-photon crystal being formed by non-magneto-optic memory technique post periodic arrangement, cycle and the pillar size of determining described three-photon crystal according to operating frequency, operating frequency is arranged in the forbidden band of photonic crystal; The interface of the first photonic crystal, the second photonic crystal and three-photon crystal is respectively common waveguide and the local waveguide of one way propagation;
S300, in three-photon crystal center, resonance frequency is set and equals the single mode defect cavity of operating frequency;
S400, in the first photonic crystal, the second photonic crystal and single mode defect cavity, apply the controlling magnetic field that is parallel to Z direction, controlling magnetic field makes signal one way propagation in common waveguide, local waveguide, carries out resonance coupling in single mode defect cavity.
7. signal add drop multiplex method according to claim 6, it is characterized in that, the structure of the first photonic crystal and the second photonic crystal is square lattice lattice structure, and three-photon crystal is and the square lattice lattice structure of the square lattice dot matrix angle at 45 ° of the first photonic crystal, the second photonic crystal.
8. signal add drop multiplex method according to claim 6, is characterized in that, the material that the first photonic crystal, the second photonic crystal and single mode defect cavity are used is yttrium iron garnet; The material that three-photon crystal uses is aluminium.
9. signal add drop multiplex method according to claim 6, is characterized in that, common waveguide is linear pattern waveguide, and local waveguide is the fold-line-shaped waveguide that waveguide port is positioned at homonymy.
10. signal add drop multiplex method according to claim 6, is characterized in that, by the frequency that puts on magnetic field in single mode defect cavity and control upper and lower year signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572522.XA CN103905139B (en) | 2012-12-25 | 2012-12-25 | Reconfigurable add-drop multiplexer and signal add drop multiplexing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210572522.XA CN103905139B (en) | 2012-12-25 | 2012-12-25 | Reconfigurable add-drop multiplexer and signal add drop multiplexing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103905139A true CN103905139A (en) | 2014-07-02 |
| CN103905139B CN103905139B (en) | 2017-04-26 |
Family
ID=50996306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210572522.XA Expired - Fee Related CN103905139B (en) | 2012-12-25 | 2012-12-25 | Reconfigurable add-drop multiplexer and signal add drop multiplexing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103905139B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070996A (en) * | 2015-07-29 | 2015-11-18 | 常熟浙瑞亘光电技术有限公司 | Four-port terahertz wave circulator based on magnetic plasmon one-way cavity |
| WO2017140143A1 (en) * | 2016-02-15 | 2017-08-24 | 深圳大学 | Photonic crystal cross-junction waveguide-based magnetically-controlled one-out-of-two optical path switch |
| WO2018041186A1 (en) * | 2016-08-31 | 2018-03-08 | 深圳大学 | Magnetic surface fast-mode arbitrary-angle unidirectional bent waveguide with low-loss magneto-optical gap |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400749A (en) * | 2001-08-08 | 2003-03-05 | 中国科学院物理研究所 | New-type photon crystal wavelength division multiplex device |
| CN1996682A (en) * | 2006-08-31 | 2007-07-11 | 欧阳征标 | Two-dimensional photon crystal micro resonance cavity |
| CN101533126A (en) * | 2009-04-20 | 2009-09-16 | 中山大学 | Photonic crystal wavelength division multiplexer and design method thereof |
| CN102262267A (en) * | 2011-05-21 | 2011-11-30 | 浙江工业大学 | High-efficiency channel drop filter based on photonic crystal non-commutative unidirectional waveguide |
-
2012
- 2012-12-25 CN CN201210572522.XA patent/CN103905139B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1400749A (en) * | 2001-08-08 | 2003-03-05 | 中国科学院物理研究所 | New-type photon crystal wavelength division multiplex device |
| CN1996682A (en) * | 2006-08-31 | 2007-07-11 | 欧阳征标 | Two-dimensional photon crystal micro resonance cavity |
| CN101533126A (en) * | 2009-04-20 | 2009-09-16 | 中山大学 | Photonic crystal wavelength division multiplexer and design method thereof |
| CN102262267A (en) * | 2011-05-21 | 2011-11-30 | 浙江工业大学 | High-efficiency channel drop filter based on photonic crystal non-commutative unidirectional waveguide |
Non-Patent Citations (2)
| Title |
|---|
| JIN-XIN FU, JIN LIAN, RONG-JUAN LIU, LIN GAN, ZHI-YUAN LI: "Unidirectional channel-drop filter by one-way gyro magnetic photonic crystal waveguides", 《APPLIED PHYSICS LETTERS 98,211104》 * |
| 陈小玲，李未，何玉平: "含缺陷光子晶体波分复用器研究", 《光通信技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105070996A (en) * | 2015-07-29 | 2015-11-18 | 常熟浙瑞亘光电技术有限公司 | Four-port terahertz wave circulator based on magnetic plasmon one-way cavity |
| CN105070996B (en) * | 2015-07-29 | 2018-09-14 | 常熟浙瑞亘光电技术有限公司 | The four port THz wave circulators based on the unidirectional chamber of magnetic plasmon |
| WO2017140143A1 (en) * | 2016-02-15 | 2017-08-24 | 深圳大学 | Photonic crystal cross-junction waveguide-based magnetically-controlled one-out-of-two optical path switch |
| WO2018041186A1 (en) * | 2016-08-31 | 2018-03-08 | 深圳大学 | Magnetic surface fast-mode arbitrary-angle unidirectional bent waveguide with low-loss magneto-optical gap |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103905139B (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Wang et al. | Channel drop filters with folded directional couplers in two-dimensional photonic crystals | |
| Khosravi et al. | Design and analysis of integrated all-optical 2× 4 decoder based on 2D photonic crystals | |
| Alipour-Banaei et al. | A novel proposal for all optical PhC-based demultiplexers suitable for DWDM applications | |
| Zhang et al. | Broadband on-chip mode-division multiplexer based on adiabatic couplers and symmetric Y-junction | |
| Fallahi et al. | Four-channel optical demultiplexer based on hexagonal photonic crystal ring resonators | |
| CN101672987B (en) | Optical isolator, optical add/drop multiplexer and optical combiner | |
| CN105068189B (en) | InP-base wavelength-division mode division multiplexing lacks mould optic communication integreted phontonics transmitting chip | |
| CN106291820B (en) | A kind of silicon-based integrated optical mode data exchange unit | |
| CN104238023B (en) | A kind of unrelated micro-loop light exchange method of polarization and system | |
| CN105137623A (en) | Wavelength division demultiplexer based on photonic crystal non-commutative unidirectional waveguide | |
| CN109459816A (en) | Chip occurs for silicon-based optical random waveform | |
| Yuan et al. | An ultra-compact dual-channel multimode wavelength demultiplexer based on inverse design | |
| Mohammadi et al. | Optimization and realization all-optical compact five-channel demultiplexer using 2D photonic crystal based hexagonal cavities | |
| CN103901541A (en) | Signal add-drop multiplexing module and signal add-drop multiplexer | |
| CN108519642B (en) | Integrated optical mode switch compatible with wavelength division multiplexing and mode division multiplexing functions | |
| CN107976738A (en) | Wavelength-division mould based on photonic crystal and Nanowire Waveguides divides hybrid multiplex device | |
| CN103905139A (en) | Reconfigurable add-drop multiplexer and signal add drop multiplexing method | |
| CN104834059B (en) | Mode conversion method and device in a kind of optical transmission process | |
| CN115061285A (en) | Spectrum shaping method and device | |
| Naghizade et al. | Optical four-channel demultiplexer based on air-bridge structure and graphite-type ring resonators | |
| CN203012182U (en) | Signal add-drop multiplexing module and signal add-drop multiplexer | |
| CN109491175A (en) | A kind of restructural oriented logical device based on mode multiplexing | |
| CN100565257C (en) | Reconstructing light top and bottom path multiplexer based on 2 D photon crystal | |
| CN108873176A (en) | A kind of close-coupled three-dimensional Wavelength division multiplexer/demultiplexer and implementation method | |
| CN104393926A (en) | Transmitter module for mode multiplexing-wavelength division multiplexing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170426 Termination date: 20191225 |