CN104297851B - Light wavelength division multiplexing - Google Patents
Light wavelength division multiplexing Download PDFInfo
- Publication number
- CN104297851B CN104297851B CN201310645586.2A CN201310645586A CN104297851B CN 104297851 B CN104297851 B CN 104297851B CN 201310645586 A CN201310645586 A CN 201310645586A CN 104297851 B CN104297851 B CN 104297851B
- Authority
- CN
- China
- Prior art keywords
- wavelength division
- light wavelength
- division multiplexing
- signal connection
- level
- 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.)
- Expired - Fee Related
Links
Classifications
-
- 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
Abstract
The present invention relates to light wavelength division multiplexing, including one-level light wavelength division multiplexing element and at least two secondary light wavelength division multiplexer elements, each secondary light wavelength division multiplexer element is respectively provided with two second signal connection ends, one of second signal connection end that one-level light wavelength division multiplexing element has the signal connection end of one-level first and number and the one-to-one one-level secondary signal connection end of secondary light wavelength division multiplexer element number, each secondary light wavelength division multiplexer element connects with corresponding one-level secondary signal connection end respectively.The invention provides a kind of isolation light wavelength division multiplexing higher.
Description
Technical field
The present invention relates to be used to separate optical wavelength and the light wavelength division multiplexing for being synthesized.
Background technology
Light wavelength division multiplexing is the light source device for being separated to optical wavelength with being synthesized, in the prior art using single light
Wavelength division multiplexer, light wavelength division multiplexing has first, second, and third signal connection end, as shown in Figure 1 when using：First,
Second with the corresponding optical fiber of connection respectively on the 3rd signal connection end, when operation wavelength is the composite optical signal of 1310nm and 1550nm
When being input into light wavelength division multiplexing 1 through the first signal connection end, second closes the 3rd signal connection end distinguishes output wavelength for 1310nm
With the optical signal of 1550nm, optical signal separated transmission is realized.The product wavelength isolation of existing this light wavelength division multiplexing exists
Between 17 ~ 24dB, bandwidth of operation is ± 5nm, it is impossible to meet requirement of the communication system to high-isolation.
The content of the invention
It is an object of the invention to provide a kind of isolation light wavelength division multiplexing higher.
In order to solve the above problems, the technical scheme is that：
Light wavelength division multiplexing, including one-level light wavelength division multiplexing element and at least two secondary light wavelength division multiplexer elements,
Each secondary light wavelength division multiplexer element is respectively provided with two second signal connection ends, and one-level light wavelength division multiplexing element has one-level
One signal connection end and number and the one-to-one one-level secondary signal connection end of secondary light wavelength division multiplexer element number, each two
One of second signal connection end of level light wavelength division multiplexing element connects with corresponding one-level secondary signal connection end respectively.
The secondary light wavelength division multiplexer element has two.
Beneficial effects of the present invention are：Composite signal with least two operation wavelengths when using is first through one-level first
Signal connection end enters one-level light wavelength division multiplexing element, and Hou Ge roads optical signal point is separated through one-level light wavelength division multiplexing element
Do not enter correspondence secondary light wavelength division multiplexer element through one-level secondary signal connection end, and it is final through secondary light wavelength division multiplexer unit
The corresponding second signal connection end output of part.The present invention is by secondary light wavelength division multiplexer element and one-level light wavelength division multiplexing unit
After part is used cooperatively, the product wavelength isolation of light wavelength division multiplexing is the product ripple of one-level light wavelength division multiplexing element after tested
Isolation long and the product wavelength isolation sum of corresponding secondary light wavelength division multiplexer element, substantially increase single in the prior art
The wavelength isolation of one light wavelength division multiplexing, greatly improves the application field of light wavelength division multiplexing.
Brief description of the drawings
Fig. 1 is the structural representation of prior art in the present invention；
Fig. 2 is the structural representation of one embodiment of the present of invention；
Fig. 3 is the connection diagram of one-level light wavelength division multiplexing element and each secondary light wavelength division multiplexer element in Fig. 2.
Specific embodiment
The implementation of light wavelength division multiplexing is for example shown in Fig. 2 ~ 3：Light wavelength division multiplexing 2 includes an one-level light wavelength division multiplexing
Element 31 and two secondary light wavelength division multiplexer elements, two secondary light wavelength division multiplexer elements are respectively two grade of first smooth wavelength-division
Multiplexer element 33 and two grade of second light wavelength division multiplexing element 32, wherein one-level light wavelength division multiplexing element, two grade of first light
Wavelength division multiplexer element, two grade of second these three element of light wavelength division multiplexing element are by single OWDM in the prior art
Device is constituted, that is to say, that their structure belongs to prior art, will not be described in detail herein.The three of one-level light wavelength division multiplexing element
Individual signal connection end be respectively a signal connection end of one-level first and two respectively with each secondary light wavelength division multiplexer element pair
The one-level secondary signal connection end that should be set, two grade of first, second light wavelength division multiplexing element each itself also has three letters
Number connection end, but reflectorized material will be coated on a signal connection end in two grade of first, second light wavelength division multiplexing element,
I.e. two grade first, second light wavelength division multiplexing element has a signal connection end to be blocked, and two grade of first, second smooth wavelength-division is answered
It is left two signal connection ends that can be used, the signal connection end that the two can be used referred to as second signal with device element
Connection end, two grade of first one of second signal connection end of light wavelength division multiplexing element connects with one-level secondary signal connection end
Connect, one of second signal connection end of two grade of second light wavelength division multiplexing element is connected with the signal connection end of one-level the 3rd.
When using, optical fiber A is connected to the signal connection end of one-level first connection of one-level light wavelength division multiplexing element, by light
Another second signal connection end of fine B and optical fiber C respectively with two grade of first, second light wavelength division multiplexing element is connected, below
Effect explanation is carried out with the optical signal that wavelength is respectively 1310nm, 1550nm：A ends are input into 1310nm wavelength signals, B ports wavelength
Isolation >=40dB；C-terminal 1310nm measures insertion loss≤0.5dB（Including wavelength division multiplexer, continuous loss and plug loss）.
B ends are input into 1550nm wavelength signals, and 1550nm insertion loss in A ends is≤0.5dB, and C-terminal mouthful near-end isolation >=
60dB。
A ends are input into 1550nm wavelength signals, C-terminal mouthful distal end isolation >=40dB；B ends 1550nm measure insertion loss≤
0.5dB（Including wavelength division multiplexer, continuous loss and plug loss）.
C-terminal is input into 1310nm wavelength signals, and 1310nm insertion loss in A ends is≤0.5dB, and B ports near-ends isolation >=
60dB。
That is by simple that two light wavelength division multiplexing elements are in parallel with light wavelength division multiplexing element
Set, achieve isolation and be superimposed this unexpected technique effect.
Secondary light ripple multiplexer element in the present embodiment employs light wave multiplexer of the prior art, by one letter
Reflectorized material closure is coated in number connection end, in other embodiments of the invention：Secondary light ripple multiplexer can also be and make
At the beginning of itself only have two signal connection ends；When composite signal includes the signal of multiple wavelength, secondary light ripple multiplexer element
Number can also be appropriate increase, such as composite signal is when including the signal of three wavelength, secondary light ripple multiplexer unit
The number of part should also have three, and the number of the one-level secondary signal connection end of one-level light wave multiplexer element is and secondary light ripple
Multiplexer element number corresponds three for setting, with should composite signal include the signal of four wavelength when, secondary light
The number of ripple multiplexer element and the number of one-level secondary signal connection end are also four.
Claims (2)
1. light wavelength division multiplexing, it is characterised in that：It is multiple including one-level light wavelength division multiplexing element and at least two secondary light wavelength-divisions
Device element, each secondary light wavelength division multiplexer element is used to be respectively provided with two second signal connection ends, each secondary light wavelength division multiplexer unit
Part only has its in three signal connection ends of two signal connection ends or each secondary light wavelength division multiplexer element when making
In a signal connection end blocked, one-level light wavelength division multiplexing element has the signal connection end of one-level first and number with two grades
The one-to-one one-level secondary signal connection end of light wavelength division multiplexing element number, each secondary light wavelength division multiplexer element is wherein
One second signal connection end connects with corresponding one-level secondary signal connection end respectively, by secondary light wavelength division multiplexer element with
After one-level light wavelength division multiplexing element is used cooperatively, the product wavelength isolation for making light wavelength division multiplexing is one-level OWDM
The product wavelength isolation sum of the product wavelength isolation of device element and corresponding secondary light wavelength division multiplexer element.
2. light wavelength division multiplexing according to claim 1, it is characterised in that：The secondary light wavelength division multiplexer element has two
It is individual.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645586.2A CN104297851B (en) | 2013-12-05 | 2013-12-05 | Light wavelength division multiplexing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310645586.2A CN104297851B (en) | 2013-12-05 | 2013-12-05 | Light wavelength division multiplexing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104297851A CN104297851A (en) | 2015-01-21 |
| CN104297851B true CN104297851B (en) | 2017-06-27 |
Family
ID=52317652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310645586.2A Expired - Fee Related CN104297851B (en) | 2013-12-05 | 2013-12-05 | Light wavelength division multiplexing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104297851B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113949457B (en) * | 2021-09-23 | 2023-03-14 | 中航光电科技股份有限公司 | Miniaturized multichannel high-isolation radio frequency optical transmission system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412969A (en) * | 2001-10-12 | 2003-04-23 | 光技术统合网株式会社 | Wavelength-division multiplex device and wavelength-division multiplex system |
| CN2636503Y (en) * | 2003-09-04 | 2004-08-25 | 深圳市深大长通电信技术有限公司 | Single fiber double wave four channel transmission converter |
| CN101308232A (en) * | 2007-05-15 | 2008-11-19 | 福州大学 | Tapered optical fiber annular cavity optical comb type wavelength-division multiplexer and method of manufacture |
-
2013
- 2013-12-05 CN CN201310645586.2A patent/CN104297851B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1412969A (en) * | 2001-10-12 | 2003-04-23 | 光技术统合网株式会社 | Wavelength-division multiplex device and wavelength-division multiplex system |
| CN2636503Y (en) * | 2003-09-04 | 2004-08-25 | 深圳市深大长通电信技术有限公司 | Single fiber double wave four channel transmission converter |
| CN101308232A (en) * | 2007-05-15 | 2008-11-19 | 福州大学 | Tapered optical fiber annular cavity optical comb type wavelength-division multiplexer and method of manufacture |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104297851A (en) | 2015-01-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109870767A (en) | A kind of grating type single-fiber three-way multiplexer | |
| WO2011017348A8 (en) | Split/smart channel allocated wdm-pon architecture | |
| CN104614807B (en) | Cascading mach zehnder interferometer type optical power splitting-wave splitting device based on raster phase arm | |
| CN106896453A (en) | A kind of four-way photoelectric device of compatible GPON, 10GPON | |
| CN108834005A (en) | A kind of passive optical fiber network system and its control method of power adjustable | |
| CN104363070A (en) | Multichannel optical network transmission device and method | |
| CN103338088A (en) | Optical fiber communication multiplexing device | |
| CN104297851B (en) | Light wavelength division multiplexing | |
| CN204231362U (en) | A kind of multi-path light net transmission equipment | |
| ITMI980079A1 (en) | WAVE LENGTH DIVISION MULTIPLATION SYSTEM LENGTH DIVISION MULTIPLATION TRANSMISSION SYSTEM AND | |
| CN105137694B (en) | All-optical logic gate based on nonlinear phase shift fiber grating | |
| CN103630975A (en) | Central wavelength and channel interval tunable optical-comb-shaped interferometer | |
| CN202050420U (en) | Integrated multichannel wavelength division multiplexer | |
| CN202488626U (en) | Novel wavelength division multiplexer | |
| CN107907946A (en) | A kind of photoelectricity complex optical splitter | |
| WO2009011053A1 (en) | Point-to-multipoint optical communication system | |
| CN203616501U (en) | Optical fiber connector capable of multiplexing optical path | |
| CN104426604B (en) | Single-fiber three-way multiplexer for optical network unit and monolithic integrated reflector | |
| CN205545275U (en) | Single fiber triple wave six is to transmission converter and transmission system | |
| CN104345413B (en) | A kind of six to single fiber transmission converter | |
| RU2423000C1 (en) | Double passive fibre-optic network | |
| CN101551489A (en) | One multiply N power splitter comprising wavelength selectivity | |
| CN103731227B (en) | A kind of Novel bidirectional optical add-drop multiplexer | |
| CN203645689U (en) | Novel bidirectional optical add-drop multiplexer (OADM) | |
| CN207663103U (en) | Photoelectricity complex optical splitter |
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 |
Granted publication date: 20170627 Termination date: 20181205 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |