CN109617643A - Reconfigurable optical add/drop multiplexer and network transmission system - Google Patents
Reconfigurable optical add/drop multiplexer and network transmission system Download PDFInfo
- Publication number
- CN109617643A CN109617643A CN201910037492.4A CN201910037492A CN109617643A CN 109617643 A CN109617643 A CN 109617643A CN 201910037492 A CN201910037492 A CN 201910037492A CN 109617643 A CN109617643 A CN 109617643A
- Authority
- CN
- China
- Prior art keywords
- optical add
- drop multiplexer
- multiplexer
- reconfigurable optical
- reconfigurable
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
- H04J14/0201—Add-and-drop multiplexing
- H04J14/0202—Arrangements therefor
- H04J14/021—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM]
- H04J14/0212—Reconfigurable arrangements, e.g. reconfigurable optical add/drop multiplexers [ROADM] or tunable optical add/drop multiplexers [TOADM] using optical switches or wavelength selective switches [WSS]
-
- 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
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The disclosure is directed to a kind of reconfigurable optical add/drop multiplexer and network transmission systems.The reconfigurable optical add/drop multiplexer includes adjustable optical attenuator, and the adjustable optical attenuator is made of controlled mode interaction switch.The reconfigurable optical add/drop multiplexer that the disclosure provides, attenuation range relatively with higher.
Description
Technical field
This disclosure relates to technology photoelectric device technical field, in particular to a kind of reconfigurable optical add/drop multiplexer with
Network transmission system.
Background technique
In recent years, there are more and more novel telecommunication services.These new business make people to network bandwidth
Demand increasingly increases.Compared with conventional telecommunications business, these new business often have higher dynamic characteristic and unpredictable
Property, therefore it is required that the optical-fiber network as transporting physical layer provides higher flexibility.Meanwhile extra long distance dense wave division multipurpose
(DWDM) maturation of system is transferred to the bottleneck of network service on Bandwidth Management from bandwidth construction.In core network node
On, generally require processing dozens of even a wavelength up to a hundred, and the transmittability of extra long distance then requires on more nodes have
The ability of lower road (Add/Drop) more multi-wavelength.
The appearance of optical add/drop multiplexer (OADM, Optical Add-Drop Multiplexer) makes optical-fiber network gradually from point
To networking to looped network evolution, and reconfigurable optical add/drop multiplexer (ROADM, Reconfigurable Optical Add-Drop
Multiplexer) can not only as traditional optical add/drop multiplexer, on one node complete optical channel road up and down and
The other cross scheduling of wavelength level between optical channel can also realize configuration and the tune of upper and lower road wavelength by software completely
It is whole.
In order to guarantee in communication equipment to the accuracy of high-speed real-time transmitting, the requirement of signal integrity and farther away
Transmission path needs to control the signal decaying of reconfigurable optical add/drop multiplexer.
It should be noted that information is only used for reinforcing the reason to the background of the disclosure disclosed in above-mentioned background technology part
Solution, therefore may include the information not constituted to the prior art known to persons of ordinary skill in the art.
Summary of the invention
The disclosure is designed to provide a kind of reconfigurable optical add/drop multiplexer and network transmission system, can make restructural
Optical add/drop multiplexer attenuation range with higher.
According to one aspect of the disclosure, a kind of reconfigurable optical add/drop multiplexer is provided.The optical add/drop multiplexer includes:
Adjustable optical attenuator, the adjustable optical attenuator are made of controlled mode interaction switch.
In a kind of exemplary embodiment of the disclosure, the reconfigurable optical add/drop multiplexer is that planar waveguide-type is restructural
Optical add/drop multiplexer.
In a kind of exemplary embodiment of the disclosure, the reconfigurable optical add/drop multiplexer further include:
Wave decomposing multiplexer and wavelength division multiplexer；
The adjustable optical attenuator is located on the channel that the Wave decomposing multiplexer is connect with the wavelength division multiplexer.
In a kind of exemplary embodiment of the disclosure, the reconfigurable optical add/drop multiplexer further include:
Photoswitch, the photoswitch are located on the channel that the adjustable optical attenuator is connect with the channel-splitting filter, and by by
Control mode interaction switch is constituted.
In a kind of exemplary embodiment of the disclosure, the reconfigurable optical add/drop multiplexer is that wavelength blocker type can weigh
Structure optical add/drop multiplexer.
In a kind of exemplary embodiment of the disclosure, the reconfigurable optical add/drop multiplexer further include:
Wave decomposing multiplexer and wavelength division multiplexer；
The adjustable optical attenuator is located on the channel that the Wave decomposing multiplexer is connect with the wavelength division multiplexer.
In a kind of exemplary embodiment of the disclosure, the reconfigurable optical add/drop multiplexer is that wavelength-selective switches type can
Reconstruct optical add/drop multiplexer.
In a kind of exemplary embodiment of the disclosure, the reconfigurable optical add/drop multiplexer further include:
Wave decomposing multiplexer and photoswitch, the photoswitch are 1 × N photoswitch；
The adjustable optical attenuator is located on the channel that the Wave decomposing multiplexer is connect with the photoswitch.
In a kind of exemplary embodiment of the disclosure, the controlled mode interaction switch includes dynamic mode converter.
According to another aspect of the disclosure, a kind of network transmission system is additionally provided.The network transmission system includes upper
The reconfigurable optical add/drop multiplexer stated.
The reconfigurable optical add/drop multiplexer that the disclosure provides uses controlled mode interaction (CMI) switch and constitutes tunable optical
Attenuator (VOA).Controlled mode interaction (CMI) switch is according to the optical characteristics between same order mode is not different and carry out in waveguide
Work, the Mode Coupling effect of same propagation constant is good, and the First-Order Mode of first waveguide and the basic mode of second waveguide are matched,
The modes different to the same wavelength are multiplexed.Different modes is operated, it is special according to the different optics of different mode
Property carry out high-isolation between implementation pattern, and pass through relatively simple mask structure, so that it may distinguish these modes.
It ensure that the highly attenuating range of reconfigurable optical add/drop multiplexer, and under the premise of not introducing other optical elements, it can be with
Emit or receiving inserting channel at any time, updates message transmission mode.In addition, and based on reconfigurable optical point after controlled mode interaction
The attenuation range of insert multiplexer becomes higher.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The disclosure can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the disclosure
Example, and together with specification for explaining the principles of this disclosure.It should be evident that the accompanying drawings in the following description is only the disclosure
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is the planar waveguide-type reconfigurable optical add/drop multiplexer that an embodiment of the disclosure provides；
Fig. 2 is the wavelength blocker schematic diagram that an embodiment of the disclosure provides；
Fig. 3 is the wavelength-selective switches schematic diagram that an embodiment of the disclosure provides；
Fig. 4 shows the sensitivity schematic diagram of the reconfigurable optical add/drop multiplexer based on Mach-Zender interferometer；
Fig. 5 shows the sensitivity schematic diagram of the reconfigurable optical add/drop multiplexer based on controlled mode interaction.
Specific embodiment
Example embodiment is described more fully with reference to the drawings.However, example embodiment can be with a variety of shapes
Formula is implemented, and is not understood as limited to example set forth herein；On the contrary, thesing embodiments are provided so that the disclosure will more
Fully and completely, and by the design of example embodiment comprehensively it is communicated to those skilled in the art.Described feature, knot
Structure or characteristic can be incorporated in any suitable manner in one or more embodiments.In the following description, it provides perhaps
More details fully understand embodiment of the present disclosure to provide.It will be appreciated, however, by one skilled in the art that can
It is omitted with technical solution of the disclosure one or more in the specific detail, or others side can be used
Method, constituent element, device, step etc..In other cases, be not shown in detail or describe known solution to avoid a presumptuous guest usurps the role of the host and
So that all aspects of this disclosure thicken.
In addition, attached drawing is only the schematic illustrations of the disclosure, it is not necessarily drawn to scale.Identical attached drawing mark in figure
Note indicates same or similar part, thus will omit repetition thereof.Some block diagrams shown in the drawings are function
Energy entity, not necessarily must be corresponding with physically or logically independent entity.These function can be realized using software form
Energy entity, or these functional entitys are realized in one or more hardware modules or integrated circuit, or at heterogeneous networks and/or place
These functional entitys are realized in reason device device and/or microcontroller device.
Term "one", " one ", "the" and " described " to indicate there are one or more elements/component part/etc.；With
Language " comprising " and " having " is to indicate the open meaning being included and refer to element/composition portion in addition to listing
Also may be present except divide/waiting other element/component part/etc..
Existing reconfigurable optical add/drop multiplexer (ROADM) generallys use Mach-Zender interferometer (MZI) composition
Adjustable optical attenuator (VOA) can control the intensity of optical output signal using thermo-optic effect by electronic control system.Specifically
Ground, when "On" state of Mach-Zender interferometer (MZI) switch, are realized by changing the phase difference of two-beam in two-arm
, required phase difference can be realized by heater, his power consumption is smaller.However, in order to make up manufacturing process
Phase difference, when be in "Off" state when, it is also desirable to expend energy.Therefore, horse is used by what multiple adjustable optical attenuators formed
The power consumption of conspicuous-Zeng Deer interferometer (MZI) attenuator array is calibrated extremely complex with regard to bigger.Further, since using horse
Conspicuous-Zeng Deer interferometer (MZI) is based on interference of light principle, and birefringent presence will cause to polarize relevant loss (PDL), because
This, Mach-Zender interferometer (MZI) is not suitable for use in the adjustable optical attenuator (VOA) constituted.
Further, since phase shift and splitting ratio are too sensitive to the variation of working condition, so that Mach-Zender interferometer
(MZI) manufacture difficulty of the adjustable optical attenuator (VOA) constituted is very big, its lower communication performance, and foozle influence compared with
Greatly, yield rate is low.
A kind of reconfigurable optical add/drop multiplexer is provided firstly in the example embodiment of the disclosure.As shown in Figure 1, this can
Reconstructing optical add/drop multiplexer includes adjustable optical attenuator, which is made of controlled mode interaction switch.
The reconfigurable optical add/drop multiplexer that the disclosure provides uses controlled mode interaction (CMI) switch and constitutes tunable optical
Attenuator (VOA).Controlled mode interaction (CMI) switch is according to the optical characteristics between same order mode is not different and carry out in waveguide
Work, the Mode Coupling effect of same propagation constant is good, and the First-Order Mode of first waveguide and the basic mode of second waveguide are matched,
The modes different to the same wavelength are multiplexed.Different modes is operated, it is special according to the different optics of different mode
Property carry out high-isolation between implementation pattern, and pass through relatively simple mask structure, so that it may these modes are distinguished,
It ensure that the highly attenuating range of reconfigurable optical add/drop multiplexer, and under the premise of not introducing other optical elements, it can be with
Emit or receiving inserting channel at any time, updates message transmission mode.
As shown in Figure 4 and Figure 5, Fig. 4 is the sensitivity of the reconfigurable optical add/drop multiplexer based on Mach-Zender interferometer
Schematic diagram, Fig. 5 show the sensitivity schematic diagram of the reconfigurable optical add/drop multiplexer based on controlled mode interaction.As can be seen that
Reconfigurable optical add/drop multiplexer is very sensitive when based on Mach-Zender interferometer, and based on restructural after controlled mode interaction
The attenuation range of optical add/drop multiplexer becomes higher.
As shown in Figure 1, reconfigurable optical add/drop multiplexer is planar waveguide-type reconfigurable optical add/drop multiplexer, for realizing light
The add drop multiplex function of signal, including Wave decomposing multiplexer 11, wavelength division multiplexer 12, adjustable optical attenuator 13,14 and of photoswitch
Photodetector.The Wave decomposing multiplexer 11 and wavelength division multiplexer 12 constituted using planar waveguide and planar array waveguide can be realized more
The decomposition and synthesis of road dense frequencies or wavelength signals.It, can using the array light switch constituted based on controlled mode interaction (CMI)
The transmission channel of conversion or recombined optical signal.Using the adjustable optical attenuator 13 constituted based on controlled mode interaction (CMI), pass through
Electronic control system, according to the optical characteristics between same order mode is not different and work in waveguide, to different modes into
Row operation, can control the intensity of optical output signal.Optical signal coupling device can be used and photodiode constitutes photodetector, can examine
Survey the intensity of light, and the feedback control signal as adjustable optical attenuator.
Wherein, adjustable optical attenuator 13 is located on the channel that Wave decomposing multiplexer 11 is connect with wavelength division multiplexer 12.In addition,
It is also equipped with adjustable optical attenuator 13 on the channel that point slotting channel is connect with array light switch, is declined to the optical signal of insertion
Subtract.
The optical signal of the optical add/drop multiplexer of reconfigurable optical add/drop multiplexer is divided into two-way, is main channel signal all the way, separately
It is a point slotting channel signal all the way.Main channel signal enters Wave decomposing multiplexer 11 from main channel input terminal, by frequency or different waves
Long single channel main channel signal is divided into multipath light signal, then reaches array light switch by adjustable optical attenuator 13, and control is
The new optical signal of no insertion, by the intensity of 13 adjustment signal of adjustable optical attenuator, and via the optical signal coupling device of main channel
After the photodetector detection formed with the photodiode of main channel, it is delivered to wavelength division multiplexer 12, with other frequencies or wavelength
Main channel signal be combined into an optical signal, exported through main channel output end.
Specifically, based on controlled mode interaction (CMI) constitute array light switch, according in waveguide not same order mode it
Between optical characteristics it is different and work, comprising modules include mode division multiplexer and dynamic mode converter.Pass through dynamic
Mode converter operates multimode waveguide, and there are two types of operating modes for tool, and under "Off" state, mode converter is a nothing
Source device, light beam can be directly by without any variations, at this point, the order of mode does not change, and insertion loss
It is very low.In addition, full symmetric when the structure of mode converter, thus it to wavelength according to lazyness very little, and can mention
For biggish bandwidth.Under "open" state, the refractive index of device can change by thermo-optic effect, turn to complete mode
It changes.
Planar waveguide-type reconfigurable optical add/drop multiplexer, its own has to lower road wavelength and upper road wavelength power detection function
Can, cooperate adjustable optical attenuator to constitute reaction type automatic channel power adjustment for it and provides condition, utilize automatic channel power
It adjusts, planar waveguide-type reconfigurable optical add/drop multiplexer can not manually intervene can be by the route flatness of node exit
Control in the preferred range, in particular by the adjustable optical attenuator constituted based on controlled mode interaction, can be mentioned further
Highly attenuating range promotes the performance of reconfigurable optical add/drop multiplexer.Furthermore, it is possible to Wave decomposing multiplexer 11, wavelength division multiplexer
12, adjustable optical attenuator 13, array light switch 14 and photodetector are integrated on the one wafer, have cost in large-scale production
With the advantage in structure.
In another implementation, reconfigurable optical add/drop multiplexer is wavelength blocker type reconfigurable optical add/drop multiplexer.
As shown in Fig. 2, wavelength blocker includes Wave decomposing multiplexer 21, wavelength division multiplexer 22 and adjustable optical attenuator 23.
The Wave decomposing multiplexer 21 and wavelength division multiplexer 22 constituted using planar waveguide and planar array waveguide can realize the intensive frequency of multichannel
The decomposition and synthesis of rate or wavelength signals.Using the adjustable optical attenuator 23 constituted based on controlled mode interaction (CMI), pass through electricity
Sub-control system carries out different modes according to the optical characteristics between same order mode is not different and work in waveguide
Operation can control the intensity of optical output signal.
Wherein, adjustable optical attenuator 23 is located on the channel that Wave decomposing multiplexer 21 is connect with wavelength division multiplexer 22.
The optical signal of the channel-splitting filter of reconfigurable optical add/drop multiplexer is divided into two-way, is forthright signal all the way, under another way is
Road signal.Forthright signal enters Wave decomposing multiplexer 21 from main channel input terminal, by frequency or the single channel main channel of different wave length
Signal is divided into multipath light signal, then passes through the intensity of 23 adjustment signal of adjustable optical attenuator, is then delivered to wavelength division multiplexer
22, it is combined into an optical signal, is delivered to combiner through main channel.The signal on road is locally needed to believe after wave multiplexer with analgesic
Output can be amplified by number being combined by combiner.
Wavelength blocker type reconfigurable optical add/drop multiplexer, using the variable optical attenuation constituted based on controlled mode interaction
Device can reduce manufacturing cost.
In another implementation, reconfigurable optical add/drop multiplexer is wavelength-selective switches type reconfigurable optical add/drop multiplexer.
As shown in figure 3, wavelength-selective switches type reconfigurable optical add/drop multiplexer includes Wave decomposing multiplexer 31, wavelength-division multiplex
Device 32, adjustable optical attenuator 33 and array light switch 34.The wavelength-division demultiplexing constituted using planar waveguide and planar array waveguide
Device 31 and wavelength division multiplexer 32 can realize the decomposition and synthesis of multichannel dense frequencies or wavelength signals.It is handed over using based on controlled mode
The mutually array light switch that (CMI) is constituted, convertible or recombined optical signal transmission channel.Using based on controlled mode interaction
(CMI) adjustable optical attenuator 33 constituted, by electronic control system, according to the not optical characteristics between same order mode in waveguide
It is different and work, different modes is operated, can control the intensity of optical output signal.Optical signal coupling device can be used
Photodetector, the intensity of detectable light, and the feedback control signal as adjustable optical attenuator are constituted with photodiode.
Wherein, adjustable optical attenuator 33 is located on the channel that Wave decomposing multiplexer 31 is connect with 1 × N photoswitch 34.
The main channel signal of reconfigurable optical add/drop multiplexer enters Wave decomposing multiplexer 31 from main channel input terminal, by frequency
Or the single channel main channel signal of different wave length is divided into multipath light signal, then reaches 1 × N of array light by adjustable optical attenuator 33
Signal is then delivered to that wavelength division multiplexer 32 is corresponding to be connect by the intensity of 33 adjustment signal of adjustable optical attenuator by switch 34
Receiving end mouth is exported through main channel output end.
Specifically, the array 1 × N photoswitch constituted based on controlled mode interaction (CMI) is according to not same order mould in waveguide
Optical characteristics between formula is different and works, and comprising modules include mode division multiplexer and dynamic mode converter.It is logical
It crosses dynamic mode converter to operate multimode waveguide, there are two types of operating modes for tool, and under "Off" state, mode converter is
One passive device, light beam can be directly by this point, the order of mode does not change, and inserting without any variation
Enter to be lost very low.In addition, full symmetric when the structure of mode converter, thus it to wavelength according to lazyness very little, and
Biggish bandwidth can be provided.Under "open" state, the refractive index of device can change by thermo-optic effect, to complete mould
Formula conversion.
Wavelength-selective switches type reconfigurable optical add/drop multiplexer, increases exchange dimension, can be used to constitute network, can also change
The performance of kind direct channel.Any one port into N can be exported in any wavelength of the input terminal of 1 × N photoswitch.For
Polydirectional wavelength switching node using relatively easy, and each channel independently has adjustable optical attenuator, especially adopts
With the adjustable optical attenuator constituted based on controlled mode interaction, attenuation range can be further increased, reconfigurable optical point is promoted and inserts
The performance of multiplexer.
This example embodiment additionally provides a kind of network transmission system.The network transmission system includes above-mentioned restructural
Optical add/drop multiplexer, for example, the network transmission system can be applied in the network transmission systems such as AR/VR equipment.It is above-mentioned restructural
The detail and beneficial effect of optical add/drop multiplexer are described in detail in corresponding embodiment, herein no longer
It repeats.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to its of the disclosure
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the disclosure, these modifications, purposes or
Person's adaptive change follows the general principles of this disclosure and including the undocumented common knowledge in the art of the disclosure
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the disclosure are by appended
Claim is pointed out.
Claims (10)
1. a kind of reconfigurable optical add/drop multiplexer characterized by comprising
Adjustable optical attenuator, the adjustable optical attenuator are made of controlled mode interaction switch.
2. reconfigurable optical add/drop multiplexer according to claim 1, which is characterized in that the reconfigurable optical add/drop multiplexer
For planar waveguide-type reconfigurable optical add/drop multiplexer.
3. reconfigurable optical add/drop multiplexer according to claim 2, which is characterized in that the reconfigurable optical add/drop multiplexer
Further include:
Wave decomposing multiplexer and wavelength division multiplexer；
The adjustable optical attenuator is located on the channel that the Wave decomposing multiplexer is connect with the wavelength division multiplexer.
4. reconfigurable optical add/drop multiplexer according to claim 3, which is characterized in that the reconfigurable optical add/drop multiplexer
Further include:
Photoswitch, the photoswitch are located on the channel that the adjustable optical attenuator is connect with the channel-splitting filter, and by controlled mould
Formula interaction switch is constituted.
5. reconfigurable optical add/drop multiplexer according to claim 1, which is characterized in that the reconfigurable optical add/drop multiplexer
For wavelength blocker type reconfigurable optical add/drop multiplexer.
6. reconfigurable optical add/drop multiplexer according to claim 5, which is characterized in that the reconfigurable optical add/drop multiplexer
Further include:
Wave decomposing multiplexer and wavelength division multiplexer；
The adjustable optical attenuator is located on the channel that the Wave decomposing multiplexer is connect with the wavelength division multiplexer.
7. reconfigurable optical add/drop multiplexer according to claim 1, which is characterized in that the reconfigurable optical add/drop multiplexer
For wavelength-selective switches type reconfigurable optical add/drop multiplexer.
8. reconfigurable optical add/drop multiplexer according to claim 2, which is characterized in that the reconfigurable optical add/drop multiplexer
Further include:
Wave decomposing multiplexer and array light switch, the photoswitch are 1 × N photoswitch；
The adjustable optical attenuator is located on the channel that the Wave decomposing multiplexer is connect with the photoswitch.
9. reconfigurable optical add/drop multiplexer according to claim 1, which is characterized in that the controlled mode interaction switch packet
Include dynamic mode converter.
10. a kind of network transmission system, which is characterized in that inserted including the described in any item reconfigurable opticals of claim 1-9 point multiple
Use device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037492.4A CN109617643A (en) | 2019-01-15 | 2019-01-15 | Reconfigurable optical add/drop multiplexer and network transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910037492.4A CN109617643A (en) | 2019-01-15 | 2019-01-15 | Reconfigurable optical add/drop multiplexer and network transmission system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109617643A true CN109617643A (en) | 2019-04-12 |
Family
ID=66017597
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910037492.4A Pending CN109617643A (en) | 2019-01-15 | 2019-01-15 | Reconfigurable optical add/drop multiplexer and network transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109617643A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228674A1 (en) * | 2019-05-14 | 2020-11-19 | 阿里巴巴集团控股有限公司 | Optical network system and method for scheduling same, and data center interconnection network |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303433A (en) * | 2007-05-10 | 2008-11-12 | 陈谷红 | Plane light integrated reconfigurable optical add-drop multiplexer |
| JPWO2011161891A1 (en) * | 2010-06-24 | 2013-08-19 | 三菱電機株式会社 | OADM equipment |
| CN104917570A (en) * | 2014-03-10 | 2015-09-16 | 中兴通讯股份有限公司 | ROADM add-drop transceiving system, method and terminal based on optical frequency comb |
-
2019
- 2019-01-15 CN CN201910037492.4A patent/CN109617643A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101303433A (en) * | 2007-05-10 | 2008-11-12 | 陈谷红 | Plane light integrated reconfigurable optical add-drop multiplexer |
| JPWO2011161891A1 (en) * | 2010-06-24 | 2013-08-19 | 三菱電機株式会社 | OADM equipment |
| CN104917570A (en) * | 2014-03-10 | 2015-09-16 | 中兴通讯股份有限公司 | ROADM add-drop transceiving system, method and terminal based on optical frequency comb |
Non-Patent Citations (1)
| Title |
|---|
| E. NAREVICIUS等: "Controlled mode interaction based wide-band and robust optical switching unit in silica-on-silicon", 《IEEE》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020228674A1 (en) * | 2019-05-14 | 2020-11-19 | 阿里巴巴集团控股有限公司 | Optical network system and method for scheduling same, and data center interconnection network |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11159231B2 (en) | Methods and systems relating to optical networks | |
| KR101954376B1 (en) | Optical network communication system with optical line terminal transceiver and method of operation thereof | |
| US9780903B2 (en) | Optical wavelength demultiplexer having optical interference filters connected in cascade | |
| US20130039662A1 (en) | Opto-electronic transceiver having housing with small form factor | |
| US5953470A (en) | Circuit for optical WDM system | |
| EP1078487B1 (en) | Dense wdm optical multiplexer and demultiplexer | |
| CN105607191A (en) | Manufacturing method of time-division wavelength division multiplexing passive optical network terminal transmit-receive integrated chip | |
| CN104918145B (en) | Single-chip integration formula multi-wavelength palarization multiplexing/demultiplexer | |
| Doi et al. | Compact ROSA for 100-Gb/s (4× 25 Gb/s) Ethernet with a PLC-based AWG demultiplexer | |
| Huang et al. | Optical transceivers for fiber-to-the-premises applications: System requirements and enabling technologies | |
| Datta | Optical networks | |
| JP2001215349A (en) | Multiplex/de-multiplex system for wavelength multiplex optical signal | |
| WO2012089527A1 (en) | Optical network system and method | |
| CN109617643A (en) | Reconfigurable optical add/drop multiplexer and network transmission system | |
| Toda et al. | 25-GHz channel spacing DWDM multiplexing using an arrayed waveguide grating for 60-GHz band radio-on-fiber systems | |
| EP1590904B1 (en) | Asymetric optical network traffic flow control | |
| Suzuki et al. | A transponder aggregator with efficient use of filtering function for transponder noise suppression | |
| Calabretta et al. | Programmable modular photonic integrated switches for beyond 5G metro optical networks | |
| US10484122B2 (en) | Optical add/drop multiplexer and control method thereof, and transceiver | |
| Riziotis et al. | Novel full-cycle-coupler-based optical add-drop multiplexer and performance characteristics at 40-Gb/s WDM networks | |
| EP0916105B1 (en) | Optical module for access networks to wide band communication systems and relevant production method | |
| Li et al. | Demonstration and application of a monolithic two-PONs-in-one device | |
| US20030086151A1 (en) | Bidirectional coding splitter | |
| Stabile et al. | Photonic integrated nodes for next-generation metro optical networks | |
| WO2020238279A1 (en) | Plc chip, tosa, bosa, optical module, and optical network device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |
|
| RJ01 | Rejection of invention patent application after publication |