CN205725763U - A kind of test waves trunking for OTDR fiber laser arrays - Google Patents
A kind of test waves trunking for OTDR fiber laser arrays Download PDFInfo
- Publication number
- CN205725763U CN205725763U CN201620351394.XU CN201620351394U CN205725763U CN 205725763 U CN205725763 U CN 205725763U CN 201620351394 U CN201620351394 U CN 201620351394U CN 205725763 U CN205725763 U CN 205725763U
- Authority
- CN
- China
- Prior art keywords
- division multiplexer
- wavelength
- rearmounted
- photoswitch
- trunking
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Optical Communication System (AREA)
Abstract
nullA kind of test waves trunking for OTDR fiber laser arrays of the present utility model，It effectively make use of the characteristic of OTDR，And utilize this test waves trunking，This trunking includes by M(M >=1,M is integer) individual wavelength division multiplexer constitute prewave division multiplexer group、The photoswitch of 1 preposition × M、Photoswitch N >=1 of 1 rearmounted × N,N is integer、The rearmounted wavelength division multiplexer group etc. being made up of N number of wavelength division multiplexer，The problem effectively solving complicated fiber optic network point of interruption detection，OTDR optical fiber test equipment ageing and efficiency of breakdown judge in existing network is greatly improved，It is thus possible to the very first time disconnected in a network obtains accurate location and the information of trouble point，Malfunction elimination for fiber optic network proposes brand-new solution，There is high actual application value.
Description
Technical field
This utility model relates to technical field of communication network, is specifically related to a kind of in the test waves of OTDR fiber laser arrays
Continue equipment.
Background technology
Along with the development of information technology, optical-fiber network is the most common networking mode of one used that communicates at present, due to
Optical fiber has transmission frequency bandwidth, capacity is big, low, that capacity of resisting disturbance strong advantage is lost, can not as a kind of communication network
Or the means lacked.Along with laying of a large amount of fiber optic networks, the fault of fibre circuit has become as greatly asking in optical network fault
Topic, in particular with operator to the network operation and the raising of maintenance requirement, the most rapidly and efficiently be accurately positioned fiber optic network
The most urgent pendulum of the problem of trouble point is in face of operator.At present, for being accurately positioned of fiber failure point, common
Use OTDR (Optical Time Domain Reflectometer, optical time domain reflectometer) as conventional means.With dynamically
As a example by scope is the single mode OTDR of 35 dB, it is assumed that the typical optical fiber typical attenuation on 1550 nm is 0.20 dB/
Km, at every 2 km weldings once (each splice loss, splice attenuation 0.1 dB), such a equipment can with accurate measure away from
From at most up to 120 kilometers (0.20 × 120+0.1 × 60 × 2=36dB).But, along with the development of communication network, special
Not being the development of Metropolitan Area Network (MAN), network structure is developed into chain structure by traditional point-to-point structure, even complicated net
Shape structures etc., the distance between communication contacts and communication contacts is general the most only only has about 5km～50km, and fiber optic network exists
The feature that net structure structure is complicated, contact is short with the spacing of contact；And traditional OTDR means of testing can only be to point-to-point
Optical-fiber network is tested, it is impossible to meet the requirement that the fiber failure in existing complex network judges.Pass through the most fast and effectively
OTDR equipment detects the position of failure point after the communication contacts in optical-fiber network, becomes the demand that each operator is urgent.
Summary of the invention
For overcoming above-mentioned deficiency, the purpose of this utility model is to provide a kind of survey for OTDR fiber laser arrays to this area
Examination ripple trunking, cannot breakpoints of optical fiber in cross-site detection optical-fiber network in order to solve the detection of existing OTDR fiber failure
Problem.Its objective is to be realized by below scheme.
A kind of test waves trunking for OTDR fiber laser arrays, including:
By M(M >=1, M is integer) individual wavelength division multiplexer constitute prewave division multiplexer (group), the light of 1 preposition × M
Switch, the photoswitch (N >=1, N is integer) of rearmounted 1 × N, the rearmounted wavelength division multiplexer that is made up of N number of wavelength division multiplexer
(group)；It is characterized in that, reflection end R that described wavelength division multiplexer by transmission end P of only applicable wavelengths λ o, is suitable for non-λ o wavelength,
The common port C being applicable to wavelength X o and non-λ o wavelength collectively forms；Described photoswitch is by multiple input I and 1 outfan T group
Becoming, outfan T selects to connect certain input I；
The common port C of M wavelength division multiplexer of prewave division multiplexer (group)1, common port C2、..., common port CMFor
Connect different telecommunication optical fiber circuits, be responsible for receiving the Communication ray of the non-λ o wavelength connecting the optic communication contact being in different far-end
The OTDR of signal and (or) λ o wavelength tests optical signal, the transmission end that M applicable wavelengths is λ o of prewave division multiplexer (group)
P1, transmission end P2、..., transmission end PMFor connecting M input I of preposition 1 × M photoswitch respectively1, input
I2、..., input IM, the M of prewave division multiplexer group the reflection end R being suitable for non-λ o wavelength1, reflection end R2、..., reflection
End RMConnect the different optical port of the optic communication contact of near-end；The outfan T of the photoswitch of 1 preposition × M1Connect rearmounted 1
The outfan T of the photoswitch of × N2, N number of input I' of the photoswitch of 1 rearmounted × N1, input I'2、..., input I'N
Then connect N number of transmission end P' of rearmounted wavelength division multiplexer group1, transmission end P'2、..., transmission end P'N, rearmounted wavelength division multiplexer group
Interior N number of reflection end R'1, reflection end R'2、..., reflection end R'NConnect the different optical port of the optic communication contact of near-end；After
Put the wavelength division multiplexer in wavelength division multiplexer group by N number of common port C'1, common port C'2、..., common port C'NConnect difference
Telecommunication optical fiber circuit.
As the further improvement of such scheme, described M=1, and during N ≠ 1, described prewave division multiplexer (group) is by one
Individual wavelength division multiplexer is constituted, and transmission end P of described prewave division multiplexer is used for connecting the outfan T of rearmounted 1 × N photoswitch2；
Or described M=1, and during N=1, described prewave division multiplexer group and rearmounted wavelength division multiplexer (group) are respectively by one
Individual wavelength division multiplexer is constituted, and transmission end P of described prewave division multiplexer is for connecting transmission end P' of rearmounted wavelength division multiplexer；
Also or described M ≠ 1, and during N=1, described rearmounted wavelength division multiplexer (group) is made up of a wavelength division multiplexer, institute
The outfan T stating preposition 1 × M photoswitch connects transmission end P' of rearmounted wavelength division multiplexer.
As the further improvement of such scheme, the preposition photoswitch of described 1 × M, the rearmounted photoswitch of 1 × N, by M × N
Photoswitch substitute.
As the further improvement of such scheme, described wavelength division multiplexer is optical device, it is achieved the light wave that wavelength is different
Couple and separate；The wavelength division multiplexer of described composition prewave division multiplexer (group) and rearmounted wavelength division multiplexer (group) is suitable for non-
The meaning of the reflection end R of λ o wavelength is that the reflection end R applicable wavelengths of each wavelength division multiplexer can be mutually internally inconsistent, also or each instead
Penetrate end R and be suitable for multiple non-λ o wavelength.
As the further improvement of such scheme, described optic communication contact refers to optical transmitter and receiver or various has optical interface
Active or inactive component, also or the active or combination of inactive component；Described optical port refers to receive optical interface, or luminescence connects
Mouthful, go back or the optical interface of inactive component.
As the further improvement of such scheme, described test waves trunking also includes control unit, is responsible for receiving far
Relay instruction that end control system sends also controls preposition photoswitch and (or) rearmounted photoswitch carries out circuit switching.
As the further improvement of such scheme, described test waves trunking also includes also including testing optical signal detecting
Unit, be responsible for test prewave division multiplexer group each transmission end P whether have test optical signal.
A kind of test waves trunking for OTDR fiber laser arrays of the present utility model, it effectively make use of OTDR's
Characteristic, and utilize this test waves trunking, the problem effectively solving complicated fiber optic network point of interruption detection so that
OTDR optical fiber test equipment ageing and efficiency of breakdown judge in existing network is greatly improved such that it is able in a network
The disconnected very first time obtains accurate location and the information of trouble point, and the malfunction elimination for fiber optic network proposes brand-new solution party
Press, there is high actual application value.
Accompanying drawing explanation
Fig. 1 is the link structure structural map of a kind of optical-fiber network Plays in this utility model；
Fig. 2 is the structural map increasing test waves trunking in the optic communication junction being each positioned at far-end in Fig. 1；
Fig. 3 is the structure structural map of a kind of test waves trunking in Fig. 2；
Fig. 4 is the structure structural map containing test waves trunking in this utility model in a kind of complexity optical-fiber network；
Fig. 5 is the structure structural map of a kind of test waves trunking in Fig. 4；
Fig. 6 is the structure structural map testing equipment in this utility model in a kind of complexity optical-fiber network containing multiple OTDR；
Fig. 7 is the structure structural map of a kind of test waves trunking in Fig. 6.
Detailed description of the invention
Below with reference to accompanying drawing, the technical scheme in this utility model embodiment is clearly and completely described, aobvious
So, described embodiment is only a part of embodiment of this utility model rather than whole embodiments.New based on this practicality
Embodiment in type, ordinary skill is left the every other enforcement obtained under not making creative work premise
Example, broadly falls into the scope of this utility model protection.
Embodiment one:
For convenience of this utility model content is understood, the structural map of a kind of concrete communication network is below used to carry out
Describe.As it is shown in figure 1, be the link structure structural map of a kind of optical-fiber network Plays, whole network is by center light communication contacts, position
In the optic communication contact 1 of far-end, optic communication contact 2, optic communication contact 3, and connect the telecommunication optical fiber line of each optic communication contact
Road collectively forms, and wherein optic communication contact 2 is by telecommunication optical fiber road connection optic communication contact 3.OTDR test equipment is positioned at
At center light communication contacts, access, by a wavelength division multiplexer, the Communication ray that center light communication contacts is connected with optic communication contact 1
In fine circuit；In this OTDR tests, this structure can only be simply between inspection center's optic communication contact and optic communication contact 1
Telecommunication optical fiber circuit, and other the telecommunication optical fiber circuit after optic communication contact 1 cannot be detected.It is appreciated that this practicality is new
A kind of test waves trunking for OTDR fiber laser arrays of type and control method thereof, be not only only limited to such communication network
In structure, it is also possible to be satisfied with in more communication network configurations.This be should not be used as to restriction of the present utility model, and all answer
Belong to protection domain of the present utility model.
As in figure 2 it is shown, for the structure of the optical-fiber network in Fig. 1 increases test waves in the optic communication junction being each positioned at far-end
The structural map of trunking；Telecommunication optical fiber connection test waves trunking, by test waves trunking by λ o wavelength
After OTDR test optical signal is separated, remaining communicating light signal is accessed optic communication contact, simultaneously test waves trunking
The optical signal sent by this optic communication contact accesses downward one-level optic communication contact after carrying out closing ripple with OTDR test optical signal
The telecommunication optical fiber circuit extended.
As it is shown on figure 3, be the structure structural map of a kind of test waves trunking in Fig. 2；It will be seen that test waves in figure
Trunking is collectively formed by prewave division multiplexer and rearmounted wavelength division multiplexer；Wavelength division multiplexer is by being applicable to wavelength X o and non-
The common port C(hereinafter referred to as C end of λ o wavelength), the transmission end P(hereinafter referred to as P end of applicable wavelengths λ o), be suitable for non-λ o wavelength
Reflection end R(hereinafter referred to as R end) collectively form；The C end of prewave division multiplexer connects telecommunication optical fiber circuit, and by wavelength X o
Test optical signal λ non-with wavelength o communicating light signal separates, and wherein communicating light signal is exported to proximally-located optic communication by R end
Contact, accesses the P end of rearmounted wavelength division multiplexer after test optical signals P end output；The non-λ that the optic communication contact of near-end is sent
The communicating light signal of o wavelength then accesses the R end of rearmounted wavelength division multiplexer, and rearmounted wavelength division multiplexer will test optical signal and Communication ray
The telecommunication optical fiber circuit that signal is extended to next stage optic communication contact by the input of C end after carrying out closing ripple.
After being appreciated that in Fig. 2 the test waves trunking used as shown in Figure 3, it is positioned at center light communication contacts
The test optical signal of wavelength X o that OTDR test equipment is sent can arrive fiber failure point, anti-by the fiber end face of trouble point
Penetrating, test optical signal can pass sequentially through each test waves trunking again.The rearmounted wavelength division multiplexer of each test waves trunking
By the test optical signal of the wavelength X o P end by P end input to prewave division multiplexer, prewave division multiplexer is again by this reflection
Test optical signal by C end input to connect previous stage optic communication contact telecommunication optical fiber circuit.The like, final wavelength
The test optical signal of λ o can arrive OTDR test equipment and be detected by OTDR test equipment；OTDR test equipment then can depend on
Telecommunication optical fiber circuit trouble point accurately is judged according to this test optical signal being reflected back.
It is appreciated that described wavelength division multiplexer is a kind of optical device, in order to realize the coupling of the different light wave of wavelength and to divide
From.Wavelength division multiplexer possesses low insertion loss, low Polarization Dependent Loss, high wavelength bandwidth isolation, spy that environmental stability is good
Point, and it is provided simultaneously with closing the characteristic of ripple/partial wave；As pure physical device, it does not results in time delay to optical signal, thus thus
The test waves trunking constituted can reach OTDR test optical signal and communicating light signal are carried out a point clutch ripple, and to test
The function that optical signal relays without time delay, and the test optical signal being reflected back trouble point relays so that OTDR test can
Extend with more website, substantially increase motility and the practicality of OTDR test.In applying due to reality, there is this kind of characteristic
The kind of wavelength division multiplexer is more, as molten every drawing tapered wavelength division multiplexer, medium membranous type wavelength division multiplexer, grating type wavelength-division multiplex
Device, Waveguide array type (Arrayed Waveguied Grating, AWG) wavelength division multiplexer etc., can meet this utility model
In requirement to wavelength division multiplexer；Forming the wavelength division multiplexer in each test waves trunking can be same model, it is also possible to
It it is different model；To this, in all test waves that those skilled in the art are obtained under not making creative work premise
Continue the constituted mode of wavelength division multiplexer in equipment, broadly falls into the scope of this utility model protection.
It is appreciated that in the wavelength division multiplexer of described composition prewave division multiplexer and rearmounted wavelength division multiplexer and is suitable for non-λ o
The meaning of the reflection end R of wavelength is that the reflection end R applicable wavelengths of each wavelength division multiplexer can be mutually internally inconsistent, also or respectively reflects
End R is suitable for multiple non-λ o wavelength；Reflection end R act as by test optical signal and communicating light signal partial wave or after closing ripple, test
Wavelength of optical signal does not changes, and communicating light signal may wavelength different, each wavelength-division of composition test waves trunking is multiple
Can be different by the R end performance of device；To this, it is regarded as protection domain of the present utility model.
Use this kind of test waves trunking, the optical fiber that the optical network link structure of the standard in Fig. 1 is occurred can be solved
Fault detection problem.But, in actual networking, optical-fiber network often has increasingly complex structure, such as circular structure, star-like structure
Make, tree-shaped structure etc..
Embodiment two:
As shown in Figure 4, for the structure structural map containing test waves trunking in a kind of complexity optical-fiber network.Compare figure
In 2, at optic communication contact 1, by telecommunication optical fiber connection optic communication contact 2, a most other telecommunication optical fiber line
Road connects optic communication contact 3；Optic communication contact 3 connects other optic communication contact of other telecommunication optical fiber connections.
It is appreciated that being positioned at the test waves trunking at optic communication contact 1 then needs to possess two descending communications
Fibre circuit selects the function of wherein.It is illustrated in figure 5 the structure structure of a kind of test waves trunking of the type
Figure；It is compared with the test waves trunking in Fig. 3, adds the photoswitch of 1 × 2 as rearmounted photoswitch, by rearmounted
Wavelength division multiplexer 1, rearmounted wavelength division multiplexer 2 collectively form rearmounted wavelength division multiplexer group.
It is appreciated that described photoswitch is by 2 input I(hereinafter referred to as I end) and 1 outfan T(hereinafter referred to as T end)
Composition, T end selects to connect certain I end.In real network structure, optic communication contact is commonly present N(N >=1) individual descending light direction,
The corresponding photoswitch that rearmounted photoswitch is 1 × N constituting test waves trunking, wherein photoswitch is by N number of I end and 1 T end
Constituting, rearmounted wavelength division multiplexer group is made up of N number of rearmounted wavelength division multiplexer.And in actual applications, it would however also be possible to employ lead to than light
I end and a T end that descending light direction quantity N of letter contact is few constitute photoswitch and use as rearmounted photoswitch.This area
The every other constituted mode to test light relay equipment that technical staff is obtained under not making creative work premise,
Under the theory of constitution not changing test light relay equipment, it is regarded as protection domain of the present utility model.
Wherein, the T end of rearmounted photoswitch connects the C end of prewave division multiplexer, the I of rearmounted photoswitch1End, I2End is respectively
Connect the P end of rearmounted wavelength division multiplexer 1, rearmounted wavelength division multiplexer 2；Rearmounted wavelength division multiplexer 1, the R end of rearmounted wavelength division multiplexer 2
Connect two downward optical communication interfaces of optic communication contact 1, rearmounted wavelength division multiplexer 1, the C end of rearmounted wavelength division multiplexer 2 respectively
Connect downward telecommunication optical fiber circuit respectively.
In the application, when being positioned at the optical fiber that the test equipment of the OTDR at center light communication contacts needs to occur in detection Fig. 4
During trouble point, after the prewave division multiplexer being positioned in the test waves trunking at optic communication contact 1 carries out partial wave, after arrival
Putting the T end of photoswitch, the T end of rearmounted photoswitch selects to connect the P end of rearmounted wavelength division multiplexer 2, then the C by wavelength division multiplexer 2
End connects telecommunication optical fiber circuit and arrives at optic communication contact 3, then is entered by the test waves trunking as described in embodiment one
After row partial wave, conjunction ripple, test optical signal i.e. arrives fiber failure point；After test optical signal reflects at fiber failure point, according to
Backtracking is tested at equipment to OTDR, and OTDR test equipment, then according to relevant information, can obtain the accurate of fiber failure point
Position.
Utilize the test waves trunking of this kind of structure, can effectively solve the OTDR test relaying in complicated optical network environment
Problem, can preferably be applied in real network.
Embodiment three:
As shown in Figure 6, for a kind of complexity optical-fiber network is tested the structure structural map of equipment containing multiple OTDR；Can in figure
To see, in the catenet comparing the increasingly complex type of Fig. 4, owing to OTDR tests equipment self-characteristic, and increase test
The insertion loss problem brought after ripple trunking, the test optical signal that OTDR test equipment is sent can not pass through too much
Test waves trunking.In this type of large-scale ad-hoc network, if there being multiple OTDR to test equipment, then by increasing test waves
Trunking so that OTDR test can be than the more comprehensively whole fiber optic network of covering.
Be appreciated that each optic communication contact in figure, such as optic communication contact 2, optic communication contact 5 etc., face may be from from
The a certain wavelength that certain the OTDR test equipment that multiple directions transmit is sent is that λ o tests optical signal and it needs to by this test light
Signal sends to corresponding telecommunication optical fiber circuit, after test optical signal is by test waves trunkings at different levels, can arrive light
Fine trouble point, and by the reflection of fiber failure point, then pass sequentially through test waves trunking at different levels, arrive the OTDR sent
At test equipment.
For realizing the problem of above-mentioned OTDR test, test waves trunking is needed to possess the telecommunication optical fiber line in multiple directions
Road selects certain ability including OTDR test optical signal therein.As it is shown in fig. 7, be the test light with this type of function
The structure structural map of trunking；In figure, by prewave division multiplexer 1, prewave division multiplexer 2 ..., preposition wavelength-division multiplex
Device M(M >=1) the prewave division multiplexer group that collectively forms, the photoswitch of a 1 × M is as preposition photoswitch, a 1 × N(N
>=1) photoswitch is as rearmounted photoswitch, by rearmounted wavelength division multiplexer 1, rearmounted wavelength division multiplexer 2 ..., rearmounted wavelength-division again
Rearmounted wavelength division multiplexer group is collectively formed with device N.The C end of M prewave division multiplexer of prewave division multiplexer group1, public
End C2End ..., CMEnd is for connecting different telecommunication optical fiber circuits, and the optic communication that responsible reception connection is in different far-end connects
The communicating light signal of the non-λ o wavelength of point and (or) the OTDR of λ o wavelength test optical signal, and the M of prewave division multiplexer group suitable
With the P that wavelength is λ o1End, P2End ..., PMEnd is for connecting M I of preposition 1 × M photoswitch respectively1End, I2End ...,
IMEnd, the M of prewave division multiplexer group the R being suitable for non-λ o wavelength1End, R2End ..., RMEnd connects the optic communication of near-end and connects
The different optical port of point；The T of the photoswitch of 1 preposition × M1End connects the T of the photoswitch of 1 rearmounted × N2End, rearmounted 1
N number of I' of the photoswitch of × N1End, I'2End ..., I'NEnd then connects N number of P' of rearmounted wavelength division multiplexer group1End, P'2
End ..., P'NEnd, the N number of R' in rearmounted wavelength division multiplexer group1End, R'2End ..., R'NEnd connects the optic communication of near-end and connects
The different optical port of point；Wavelength division multiplexer in rearmounted wavelength division multiplexer group passes through N number of C'1End, C'2End ..., C'NEnd is even
Connect different telecommunication optical fiber circuits.
Be appreciated that M(M >=1 herein), N(N >=1) represent the multiple possibility of telecommunication optical fiber circuit, according to the actual requirements,
Can be 1 telecommunication optical fiber circuit, it is also possible to be 2 telecommunication optical fiber circuits, it is also possible to be a plurality of telecommunication optical fiber circuit；Test light
Trunking is received the telecommunication optical fiber circuit to upper level and the telecommunication optical fiber number of, lines to next stage can be different, it is possible to
With identical；To this, it will be appreciated by those of skill in the art that in the constituted mode of this test light relay equipment, it is also possible to use it
He realizes mode, as substituted photoswitch with optical branching device；But in actual applications, optical branching device is because attenuation is big, it is impossible to full
Foot selects the requirement of unique Fibre circuit, will necessarily affect the performance of OTDR test；It is to be understood that the existing structure of employing is
The constituted mode of optimal test trunking.Those skilled in the art are obtained under not making creative work premise
Every other to test light relay equipment constituted mode, do not change test light relay equipment theory of constitution under, all
Should be regarded as protection domain of the present utility model.
The preposition photoswitch of 1 × M that is appreciated that in this test waves trunking, the rearmounted photoswitch of 1 × N, by M × N
Photoswitch substitute.Here, all should be used as the protection domain of the present embodiment.
It is appreciated that and uses the test waves trunking being previously mentioned in previous embodiment, just can make in the entire network,
Constitute the optical fiber link passage of a test optical signal that can only be sent by the OTDR test equipment that wavelength is λ o, and
When can make test optical signal that reflection occurs at fiber failure point, can return at OTDR test equipment by former optical fiber link,
OTDR test optical fiber can be completed.So, then can be greatly promoted the malfunction elimination efficiency of fibre circuit, and pass through network management system
Unified allocation of resources, decreases the operating pressure of attendant, and whole communications network security stability has been had higher lifting.
A kind of test waves trunking for OTDR fiber laser arrays of the present utility model, it effectively make use of this test
Ripple trunking, in conjunction with optical communication network, when fiber failure occurs, by the reasonable application of test waves trunking, at light
Fibre web network constitutes one from OTDR test equipment to fiber failure point, it is adaptable to wavelength is that the OTDR of λ o tests equipment
The optical fiber link passage of the test optical signal sent, thus realize the OTDR optical fiber test method across optic communication contact, can be full
The demand of foot OTDR test optical fiber at present, has high promotional value.
But, the foregoing is only preferable possible embodiments of the present utility model, and unrestricted protection of the present utility model
Scope, therefore the equivalent structure change that all utilization this utility model description and accompanying drawing content are made, be all contained in this practicality new
In the protection domain of type.
Claims (7)
1. the test waves trunking for OTDR fiber laser arrays, it is characterised in that this test waves trunking includes:
By M(M >=1, M is integer) individual wavelength division multiplexer constitute prewave division multiplexer group, the photoswitch of 1 preposition × M, after
Photoswitch N >=1 of the 1 × N put, N is integer, the rearmounted wavelength division multiplexer group that is made up of N number of wavelength division multiplexer；Its feature exists
In, reflection end R that described wavelength division multiplexer by transmission end P of only applicable wavelengths λ o, is suitable for non-λ o wavelength, be applicable to wavelength X o and
The common port C of non-λ o wavelength collectively forms；Described photoswitch is made up of multiple input I and 1 outfan T, and outfan T selects
Connect certain input I；
The common port C of M wavelength division multiplexer of prewave division multiplexer group1, common port C2、..., common port CMFor connecting not
Same telecommunication optical fiber circuit, is responsible for receiving the communicating light signal of the non-λ o wavelength connecting the optic communication contact being in different far-end
And/or the OTDR of λ o wavelength tests optical signal, transmission end P that M applicable wavelengths is λ o of prewave division multiplexer group1, transmission
End P2、..., transmission end PMFor connecting M input I of preposition 1 × M photoswitch respectively1, input I2、..., input
End IM, the M of prewave division multiplexer group the reflection end R being suitable for non-λ o wavelength1, reflection end R2、..., reflection end RMConnect near-end
The different optical port of optic communication contact；The outfan T of the photoswitch of 1 preposition × M1Connect the photoswitch of 1 rearmounted × N
Outfan T2, N number of input I' of the photoswitch of 1 rearmounted × N1, input I'2、..., input I'NThen connect rearmounted
N number of transmission end P' of wavelength division multiplexer group1, transmission end P'2、..., transmission end P'N, in rearmounted wavelength division multiplexer group N number of instead
Penetrate end R'1, reflection end R'2、..., reflection end R'NConnect the different optical port of the optic communication contact of near-end；Rearmounted wavelength-division is multiple
With the wavelength division multiplexer in device group by N number of common port C'1, common port C'2、..., common port C'NConnect different Communication rays
Fine circuit.
2. test waves trunking as claimed in claim 1, it is characterised in that
Described M=1, and during N ≠ 1, described prewave division multiplexer group is made up of a wavelength division multiplexer, described preposition wavelength-division is multiple
It is used for connecting the outfan T of rearmounted 1 × N photoswitch by transmission end P of device2；
Or described M=1, and during N=1, described prewave division multiplexer group and rearmounted wavelength division multiplexer group are respectively by a wavelength-division
Multiplexer is constituted, and transmission end P of described prewave division multiplexer is for connecting transmission end P' of rearmounted wavelength division multiplexer；
Also or described M ≠ 1, and during N=1, described rearmounted wavelength division multiplexer group is made up of a wavelength division multiplexer, and described preposition 1
The outfan T of × M photoswitch connects transmission end P' of rearmounted wavelength division multiplexer.
3. test waves trunking as claimed in claim 1, it is characterised in that the preposition photoswitch of described 1 × M, 1 × N
Rearmounted photoswitch, is substituted by the photoswitch of M × N.
4. test waves trunking as claimed in claim 1, it is characterised in that described wavelength division multiplexer is optical device, it is achieved
The coupling of the light wave that wavelength is different with separate；The wavelength-division of described composition prewave division multiplexer group and rearmounted wavelength division multiplexer group is multiple
Can mutually differ by the reflection end R applicable wavelengths that the meaning of the reflection end R being suitable for non-λ o wavelength in device is each wavelength division multiplexer
Cause, go back or each reflection end R is suitable for multiple non-λ o wavelength.
5. test waves trunking as claimed in claim 1, it is characterised in that described optic communication contact refer to optical transmitter and receiver or
Various have the active of optical interface or inactive component, goes back or the active or combination of inactive component；Described optical port refers to
Receive optical interface, or Lighting Interface, go back or the optical interface of inactive component.
6. test waves trunking as claimed in claim 1, it is characterised in that also include control unit, is responsible for receiving far-end
Relay instruction that control system sends also controls preposition photoswitch and/or rearmounted photoswitch carries out circuit switching.
7. test waves trunking as claimed in claim 1, it is characterised in that also include testing optical signal detecting unit, negative
Duty test prewave division multiplexer group each transmission end P whether have test optical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351394.XU CN205725763U (en) | 2016-04-25 | 2016-04-25 | A kind of test waves trunking for OTDR fiber laser arrays |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620351394.XU CN205725763U (en) | 2016-04-25 | 2016-04-25 | A kind of test waves trunking for OTDR fiber laser arrays |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205725763U true CN205725763U (en) | 2016-11-23 |
Family
ID=57296307
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620351394.XU Withdrawn - After Issue CN205725763U (en) | 2016-04-25 | 2016-04-25 | A kind of test waves trunking for OTDR fiber laser arrays |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205725763U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100746B (en) * | 2016-04-25 | 2018-05-15 | 海普林科技（武汉）有限公司 | A kind of test waves trunking and its control method for OTDR fiber laser arrays |
| CN110474676A (en) * | 2019-08-08 | 2019-11-19 | 国网新疆电力有限公司信息通信公司 | One kind being suitable for long range optical cable on-line monitoring system and monitoring method |
| CN115051751A (en) * | 2021-03-08 | 2022-09-13 | 腾讯科技（深圳）有限公司 | Method, device, electronic equipment and medium for detecting fault of optical relay equipment |
-
2016
- 2016-04-25 CN CN201620351394.XU patent/CN205725763U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100746B (en) * | 2016-04-25 | 2018-05-15 | 海普林科技（武汉）有限公司 | A kind of test waves trunking and its control method for OTDR fiber laser arrays |
| CN110474676A (en) * | 2019-08-08 | 2019-11-19 | 国网新疆电力有限公司信息通信公司 | One kind being suitable for long range optical cable on-line monitoring system and monitoring method |
| CN115051751A (en) * | 2021-03-08 | 2022-09-13 | 腾讯科技（深圳）有限公司 | Method, device, electronic equipment and medium for detecting fault of optical relay equipment |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101630972B (en) | Optical fiber line intelligent detection system and optical fiber line intelligent detection method for wavelength division multiplex (WDM) network | |
| US8693866B1 (en) | Fiber diagnosis system for WDM optical access networks | |
| CN1020229C (en) | Optical fibre link circuit testing network | |
| KR100687710B1 (en) | Method and apparatus for monitering optical fiber of passive optical network system | |
| CN101924590B (en) | The detection system of fiber fault of passive optical network and method | |
| US5774245A (en) | Optical cross-connect module | |
| CN101826919B (en) | Mixed type passive optical network structure and method for positioning and restoring faults thereof | |
| CN101442691B (en) | Optical cable monitoring system based on passive optical network system | |
| CN102821330B (en) | WDM-PON (wavelength division multiplexing-passive optical network) for performing OTDR (optical time domain reflectometry) test without influencing service | |
| CN208508943U (en) | A kind of fibre circuit monitoring system | |
| KR20040020815A (en) | System for testing an optical network using optical time-domain reflectometry(OTDR) | |
| CN205725763U (en) | A kind of test waves trunking for OTDR fiber laser arrays | |
| CN101282586B (en) | Method, system and apparatus for detecting optical fiber fault in passive optical network | |
| CN103222206B (en) | The fault detection method of branch optical fiber, Apparatus and system | |
| CN111901039A (en) | Semi-active base station forward transmission system with line protection and based on miniature wavelength division | |
| CN113708883B (en) | Local-end-to-remote-end network system capable of monitoring optical fiber state | |
| CN106100746B (en) | A kind of test waves trunking and its control method for OTDR fiber laser arrays | |
| US8014670B2 (en) | Method and apparatus for testing and monitoring data communications in the presence of a coupler in an optical communications network | |
| CN206402230U (en) | Optical assembly, the detecting devices using the optical assembly | |
| Ng et al. | Development of monitoring system for FTTH‐PON using combined ACS and SANTAD | |
| CN103675974A (en) | Filter capable of being used for both wave aggregation and bidirectional signal monitoring | |
| CN102893539A (en) | Optical network monitoring module, optical communication network and optical network monitoring method | |
| CN104536093B (en) | A kind of multichannel multiplex for simulative surveillance PON system switches equipment | |
| CN103560826A (en) | Method for testing multistage non-equipartition EPON optical fiber failures | |
| EP4175196A1 (en) | Method and system to implement a demarcation point be-tween a provider network and a customer network |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161123 Effective date of abandoning: 20180515 |