CN202444490U - Optical transceiver module, optical communication device and optical communication system - Google Patents
Optical transceiver module, optical communication device and optical communication system Download PDFInfo
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- CN202444490U CN202444490U CN2012200753765U CN201220075376U CN202444490U CN 202444490 U CN202444490 U CN 202444490U CN 2012200753765 U CN2012200753765 U CN 2012200753765U CN 201220075376 U CN201220075376 U CN 201220075376U CN 202444490 U CN202444490 U CN 202444490U
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Abstract
An embodiment of the utility model provides an optical transceiver module, an optical communication device and an optical communication system. In the optical transceiver module, a first light emission assembly, a first wavelength division multiplexer and an optical fiber adapter form a first light path, and a second light emission assembly, the first wavelength division multiplexer and the optical fiber adapter form a second light path. On the first light path, a second wavelength division multiplexer is arranged between the first wavelength division multiplexer and the first light emission assembly, and a first light receiving assembly, the second wavelength division multiplexer, the first wavelength division multiplexer and the optical fiber adapter form a third light path. On the second light path, an optical splitter is arranged between the first wavelength division multiplexer and the second light emission assembly, and a second light receiving assembly, the optical splitter, the first wavelength division multiplexer and the optical fiber adapter form a fourth light path. Four light paths are formed in the optical transceiver module in the technical scheme of the embodiment to enable transceiving of test signals and data signals to transfer through different light paths, and mutual interference between signals are avoided.
Description
Technical field
The utility model embodiment relates to Fibre Optical Communication Technology, relates in particular to a kind of optical transceiver module, optical communication equipment and optical communication system.
Background technology
Optical Access Network is meant with the network environment of optical fiber as transmission medium, has huge bandwidth capacity because optical fiber inserts, and along with the continuous growth of network bandwidth requirements, Optical Access Network has become the main development trend that future network inserts.In fiber-optic communications traffic; Be accuracy and the reliability of guaranteeing Optical Fiber Transmission; Optical time domain reflectometer (Optical Time Domain Reflectometer need be set; OTDR) state to fibre circuit detects, so that for the maintenance of fiber optic network provides analysis fast and fault location foundation is provided.
OTDR when work, need be in testing fiber the transmission test light signal, and through measuring retroreflection and the scattered signal of test light signal in optical fiber; Know the state information of testing fiber circuit, judge the case point on the testing fiber, for the maintenance of fiber optic network provides rapid analysis and fault location; Therefore; In optical fiber communication, optical communication equipment also need carry out the transmission and the reception of test light signal when carrying out the transmitting and receiving of data light signal.At present; The transmit-receive sharing light emission component and the optical fiber receive module of data light signal and test light signal; In the promptly existing optical communication equipment; The optical transceiver module that transmits and receives as light comprises a light signal receiving unit and a light signal emitting module, and the emission of test signal and data-signal all is to send light signal through a light signal emitting module, and the reception of test signal and data-signal all is to come receiving optical signals through a light signal receiving unit.
But when existing shared emitting module and receiving unit, the mutual interference of meeting phase causes the data-signal deterioration between test signal and the data-signal, and the accuracy of data is lower, even the transfer of data interruption can occur; Simultaneously, test signal and data-signal mutual interference mutually can influence the OTDR test performance, the lifting of restriction OTDR performance.
The utility model content
The utility model embodiment provides a kind of optical transceiver module, optical communication equipment and optical communication system, and the signal that can effectively overcome data-signal and shared light emission component of test signal and optical fiber receive module existence in the existing optical transceiver module is the problem of mutual interference mutually.
The utility model embodiment provides a kind of optical transceiver module, comprising: first light emission component, second light emission component, first optical fiber receive module, second optical fiber receive module, first wavelength division multiplexer and fiber adapter, wherein:
Form first light path between said first light emission component, first wavelength division multiplexer and the fiber adapter, form second light path between said second light emission component, first wavelength division multiplexer and the fiber adapter;
On said first light path, between said first wavelength division multiplexer and first light emission component, be provided with second wavelength division multiplexer, and form the 3rd light path between said first optical fiber receive module, second wavelength division multiplexer, first wavelength division multiplexer and the fiber adapter;
On said second light path, between said first wavelength division multiplexer and second light emission component, be provided with optical splitter, and form the 4th light path between said second optical fiber receive module, optical splitter, first wavelength division multiplexer and the fiber adapter;
The first data light signal of said first light emission component emission is through said first optic path to said fiber adapter, from the second data light signal of said fiber adapter input through said the 3rd optic path said first optical fiber receive module extremely;
The first test light signal of said second light emission component emission is through said second optic path to said fiber adapter; Through said the 4th optic path said second optical fiber receive module extremely, the said second test light signal is the reflected light signal of the said first test light signal in optical fiber from the second test light signal of said fiber adapter input.
Aforesaid optical transceiver module preferably, is provided with reflective optical system between the said optical splitter and first wavelength division multiplexer.
Aforesaid optical transceiver module preferably, is provided with reflective optical system between said second wavelength division multiplexer and first wavelength division multiplexer.
Aforesaid optical transceiver module preferably, also comprises housing, and each optical module is arranged in the said housing.
Aforesaid optical transceiver module preferably, is provided with supporting construction in the said housing, and each optical module is installed in the said housing through corresponding supporting construction.
Aforesaid optical transceiver module preferably, also comprises housing, and each optical module is arranged in the said housing.
Aforesaid optical transceiver module preferably, is provided with a plurality of supporting constructions in the said housing, each optical module is installed in the said housing through corresponding supporting construction.
Aforesaid optical transceiver module; Preferably; Said first wavelength division multiplexer and said first light path are miter angle, said reflective optical system and second light path and are miter angle and tilt to be installed on the same plane a in the said housing, and said plane a is the plane that said first light path and second light path form;
Said second wavelength division multiplexer is miter angle with first light path and tilts to be installed on the plane b vertical with said plane a;
Said optical splitter is miter angle with second light path and tilts to be installed on the plane c vertical with said plane a.
Aforesaid optical transceiver module preferably, is provided with first optical isolator between said second wavelength division multiplexer and first light emission component.
Aforesaid optical transceiver module preferably, is provided with second optical isolator between the said optical splitter and second light emission component.
Aforesaid optical transceiver module, preferably, a side of said optical splitter is provided with light absorber, is used to absorb the light signal of the first test light signal process spectrophotometric reflection on said second light path.
The utility model embodiment provides a kind of optical communication equipment, comprises the optical transceiver module that data-signal processing module, test signal processing module and above-mentioned the utility model embodiment provide, wherein:
Said data-signal processing module is connected with first optical fiber receive module with first light emission component in the said optical transceiver module;
Said test signal processing module is connected with second optical fiber receive module with second light emission component in the said optical transceiver module.
In the above-mentioned optical transceiver module, be provided with reflective optical system between the said optical splitter and first wavelength division multiplexer.Perhaps, be provided with reflective optical system between said second wavelength division multiplexer and first wavelength division multiplexer.
Above-mentioned optical transceiver module also can comprise housing, and each optical module is arranged in the said housing.Be provided with supporting construction in the said housing, each optical module is installed in the said housing through corresponding supporting construction.
In the above-mentioned optical transceiver module, can be provided with a plurality of supporting constructions in the said housing, each optical module is installed in the said housing through corresponding supporting construction.Wherein, said first wavelength division multiplexer and said first light path are miter angle, said reflective optical system and second light path and are miter angle and tilt to be installed on the same plane a in the said housing, and said plane a is the plane that said first light path and second light path form;
Said second wavelength division multiplexer is miter angle with first light path and tilts to be installed on the plane b vertical with said plane a;
Said optical splitter is miter angle with second light path and tilts to be installed on the plane c vertical with said plane a.
In the above-mentioned optical transceiver module, be provided with first optical isolator between said second wavelength division multiplexer and first light emission component.
In the above-mentioned optical transceiver module, be provided with second optical isolator between the said optical splitter and second light emission component.
In the above-mentioned optical transceiver module, a side of said optical splitter is provided with light absorber, is used to absorb the light signal of the first test light signal process spectrophotometric reflection on said second light path.
The utility model embodiment provides a kind of optical communication system, comprises optical line terminal, Optical Distribution Network and optical network unit, the optical communication equipment that wherein said optical line terminal adopts above-mentioned the utility model embodiment to provide;
Said optical line terminal is connected with said Optical Distribution Network, and said Optical Distribution Network is connected with at least one said optical network unit
The optical transceiver module that the utility model provides, optical communication equipment and optical communication system; Through optical splitter, first wavelength division multiplexer and second wavelength division multiplexer are set; Thereby can form 4 light paths; Carry out the reception and the transmission of data light signal, test light respectively, make transmitting and receiving respectively of data light signal and test light signal realize, avoid the phase mutual interference between data light signal and the test light signal by independent light emission component and optical fiber receive module; Improve the accuracy and the reliability of data optical signal transmission, improve the OTDR test performance simultaneously.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art; To do one to the accompanying drawing of required use in embodiment or the description of the Prior Art below introduces simply; Obviously, the accompanying drawing in describing below is some embodiment of the utility model, for those of ordinary skills; Under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
The theory structure sketch map of the optical transceiver module that Figure 1A provides for the utility model embodiment one;
Structural representation after the optical transceiver module encapsulation that Figure 1B provides for the utility model embodiment one;
Fig. 1 C is the mounting structure generalized section of each optical module on first light path among Figure 1B;
The theory structure sketch map of the optical transceiver module that Fig. 2 provides for the utility model embodiment two;
The theory structure sketch map of the optical transceiver module that Fig. 3 provides for the utility model embodiment three;
The structural representation of the optical communication equipment that Fig. 4 provides for the utility model embodiment four;
The structural representation of the optical communication system that Fig. 5 provides for the utility model embodiment five.
Embodiment
For the purpose, technical scheme and the advantage that make the utility model clearer; To combine the accompanying drawing among the utility model embodiment below; Technical scheme among the utility model embodiment is carried out clear, intactly description; Obviously, described embodiment is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, the every other embodiment that those of ordinary skills are obtained under the prerequisite of not making creative work belongs to the scope that the utility model is protected.
In view of in traditional optical transceiver module; Shared light emission component of data-signal and test signal and the existing signal interference problem of optical fiber receive module; The utility model embodiment provides a kind of optical transceiver module; Can comprise first light emission component, second light emission component, first optical fiber receive module, second optical fiber receive module, first wavelength division multiplexer and fiber adapter; Wherein, first light path can be formed between first light emission component, first wavelength division multiplexer and the fiber adapter, second light path can be formed between second light emission component, first wavelength division multiplexer and the fiber adapter; Between first wavelength division multiplexer on first light path and first light emission component, second wavelength division multiplexer can be provided with, and the 3rd light path can be formed between first optical fiber receive module, second wavelength division multiplexer, first wavelength division multiplexer and the fiber adapter; Between first wavelength division multiplexer on second light path and second light emission component, can be provided with optical splitter; And can form the 4th light path between second optical fiber receive module, optical splitter, first wavelength division multiplexer and the fiber adapter; Like this; The first data light signal of first light emission component emission can be through first optic path to fiber adapter, and the second data light signal of importing from fiber adapter can pass through the 3rd optic path to the first optical fiber receive module; The first test light signal of second light emission component emission can be through second optic path to said fiber adapter; Can be from the second test light signal of fiber adapter input through the 4th optic path to said second optical fiber receive module, the second test light signal is the reflected signal of the first test light signal in optical fiber.
In the present embodiment,, can in optical transceiver module, form 4 light paths through optical splitter, first wavelength division multiplexer and second wavelength division multiplexer are set; Make data optical signal transmitting, reception; And transmitting and receiving through different light paths of test light signal transmit, and like this, can not produce interference between test signal and the data-signal; Thereby can avoid in the prior art can effectively improving the accuracy of data because of signal disturbs the data-signal deterioration that occurs; Simultaneously, because test light signal independent light path capable of using is transmitted, the test light signal can not receive the influence of data light signal, can effectively improve the OTDR performance.
Understand for ease of the utility model embodiment technical scheme being had better, will describe the utility model embodiment technical scheme with instantiation below.
The theory structure sketch map of the optical transceiver module that Figure 1A provides for the utility model embodiment one; Structural representation after the optical transceiver module encapsulation that Figure 1B provides for the utility model embodiment one.In the present embodiment, between the optical splitter and first wavelength division multiplexer, can be provided with reflective optical system,, between second optical fiber receive module and fiber adapter, form second light path between second light emission component and fiber adapter, to form second light path.Particularly; Shown in Figure 1A and Figure 1B, the present embodiment optical transceiver module comprises: first light emission component 11, second light emission component 12, first optical fiber receive module 13, second optical fiber receive module 14, first wavelength division multiplexer 15, fiber adapter 16, second wavelength division multiplexer 17, optical splitter 18 and reflective optical system 19.
Wherein, Form first light path 101 between first light emission component 11, second wavelength division multiplexer 17, first wavelength division multiplexer 15 and the fiber adapter 16, be used for the first data light signal λ 1 of first light emission component, 11 emissions is transferred to the optical fiber that is connected with fiber adapter 16; Form the 3rd light path 103 between first optical fiber receive module 13, second wavelength division multiplexer 17, first wavelength division multiplexer 15 and the fiber adapter 16, be used for the second data light signal λ 2 that reaches fiber adapter from optical fiber is transferred to first optical fiber receive module 13; Form second light path 102 between second light emission component 12, optical splitter 18, reflective optical system 19, first wavelength division multiplexer 15 and the fiber adapter 16, be used for the first test light signal λ 3 of second light emission component, 12 emissions is transferred to the optical fiber that is connected with fiber adapter 16; Form the 4th light path 104 between second optical fiber receive module 14, optical splitter 18, reflective optical system 19, first wavelength division multiplexer 15 and the fiber adapter 16; Be used for and transfer to second optical fiber receive module 14 from the second test light signal λ 3 ' that optical fiber reaches fiber adapter 16; Like this; The reception of data light signal and transmission realize through first optical fiber receive module and first light emission component; The reception of test light signal and transmission realize through second optical fiber receive module and second light emission component, can not produce interference between data light signal and the test light signal, thereby can guarantee the accuracy and the reliability of test signal and data.
In the present embodiment, Optical Receivers also can include housing, and each above-mentioned optical module is separately positioned in this housing, so that in housing, form 4 light paths.Particularly, shown in Figure 1A and Figure 1B, can be provided with 5 ports on the housing 20, first light emission component 11, second light emission component 12, the 3rd optical fiber receive module 13, the 4th optical fiber receive module 14 and fiber adapter 16 are separately positioned on these 5 ports; First wavelength division multiplexer 15, second wavelength division multiplexer 17, optical splitter 18 and reflective optical system 19 are installed in housing 20 inside, and its concrete set-up mode can be with reference to shown in Figure 1A.
In the present embodiment; For ease of the installation of each optical module and form corresponding 4 light paths; Shown in Figure 1A, the first above-mentioned wavelength division multiplexer 15 is positioned at same plane a with reflective optical system 19, promptly on first light path 101 and second light path, the 102 formed planes; And first wavelength division multiplexer 15 is with first light path 101 in this plane, and miter angle tilts, reflective optical system 19 is miter angle with second light path 102 and tilts to be installed on the inwall of housing 20 in this plane; 17 inclinations of second wavelength division multiplexer are installed on the plane b vertical with plane a, and are the miter angle setting with first light path 101, and optical splitter 18 tilts to be installed on the plane c vertical with plane a; And be the miter angle setting with second light path 102, thereby can between each optical module, form 4 above-mentioned light paths.Can find out that the plane of above-mentioned each optical module setting can form the cube shell structure shown in Figure 1A dotted line, and can be installed on each supporting construction in the shell structure.
Fig. 1 C is the mounting structure generalized section of each optical module on first light path among Figure 1B.In this instance; Shown in Fig. 1 C, be the concrete mounting structure sketch map of each optical module on first light path among the utility model embodiment, housing 20 has the housing of cavity for the middle part; The inwall of housing 20 is provided with supporting construction; So that each optical module is installed on the housing 20 through supporting construction, thereby in the cavity of housing 20, can between each optical module, form light path; The supporter that wherein is used to support each optical module can be arranged to suitable structure as required, fixedly secures as long as guarantee optical module.
In the present embodiment, above-mentioned optical splitter 18 specifically can be light splitting piece or polarizing beam splitter, can be with the light part transmissive part reflection of incident.Simultaneously; For avoiding the 3rd light signal λ 3 interference to second optical fiber receive module 14 behind the light process secondary reflection of optical splitter 18 reflecting parts; Can be provided with light absorber 112 with these optical splitter 18 relative positions, to absorb the signal of the 3rd light signal λ 3 through optical splitter 18 reflecting parts.
In the present embodiment; Shown in Figure 1A; Between first light emission component 11 and second wavelength division multiplexer 17, also can be provided with first optical isolator 111; This first optical isolator 111 can be transmitted through second wavelength division multiplexer 17 with the first data light signal λ 1 of first light emission component, 11 emissions, and can isolate the reflected light signal λ 1 ' that the first data light signal λ 1 returns through fiber reflection, thereby can reduce the interference of reflected light signal λ 1 ' to first light emission component 11.
In the present embodiment; Shown in Figure 1A; Between second light emission component 12 and optical splitter 18, can be provided with second optical isolator 110, this second optical isolator 110 can be transmitted through optical splitter 18 with the first test light signal λ 3 of second light emission component, 12 emissions, and can isolate the reflected light signal that the process fiber reflection is returned; The i.e. second test light signal λ ' 3 is to reduce the interference of the second test light signal λ 3 ' to second light emission component 12.
It will be appreciated by those skilled in the art that; Other optical modules that remove on first light path equally can be through the respective support structure that is provided with in the housing; Firm is installed in the housing; Thereby can in housing, form 4 required light paths, satisfy the transmission of test signal and data-signal, concrete mounting means repeats no more.
It will be appreciated by those skilled in the art that; The first above-mentioned light emission component 11 and second light emission component 12 can be with the datagram that need to send in the optical communication equipment number and the test signals of telecommunication; Convert corresponding data light signal and test light signal into, and send in the optical fiber that is connected with fiber adapter 16 through corresponding light path; The first above-mentioned optical fiber receive module 13 and second optical fiber receive module 14 can be with data light signal of coming through corresponding optic path in the optical fiber and reflected light signals (the test light signal that promptly fires back); Convert the corresponding datagram number and the test signal of telecommunication into, transfer to optical communication equipment and handle.
The present embodiment optical transceiver module can be applicable to the transmission and the reception of light signal of the optical communication equipment of integrated OTDR; Can transmit and receive data-signal and test signal; So that in carrying out normal data process, test signal capable of using detects the state of Transmission Fibers.In the face of in the present embodiment, the transmission course of each signal describes in the optical transceiver module down.
When transmitted data signal; First light emission component 11 can number convert first datagram that transmits in the optical communication equipment into first data light signal λ 1; And transfer in the optical fiber that is connected with fiber adapter 16 through first light path 101, carry out the transmission of data-signal.Particularly, shown in Figure 1A, the first data light signal λ 1 of first light emission component, 11 emissions is incident to second wavelength division multiplexer 17; After these second wavelength division multiplexer, 17 transmissions, transfer to first wavelength division multiplexer 15; Through after 15 transmissions of first wavelength division multiplexer, transfer to fiber adapter 16 again; , realize the emission of data-signal after fiber adapter 16 is coupled to connected optical fiber (not shown).
When receiving data-signal; The second data light signal λ 2 that from optical fiber, transfers to fiber adapter 16 can transfer to first optical fiber receive module 13 through the 3rd light path 103; Convert thereof into corresponding second datagram number by first optical fiber receive module 13; Transfer to optical communication equipment, handle by optical communication equipment.Particularly, shown in Figure 1A, the conduct second data light signal λ 2 that transmits in the optical fiber inputs to first wavelength division multiplexer 15 through fiber adapter 16; Transfer to second wavelength division multiplexer 17 through 15 transmissions of first wavelength division multiplexer; Reflexing to first optical fiber receive module, 13, the first optical fiber receive modules 13 through second wavelength division multiplexer 17 is the corresponding signal of telecommunication through opto-electronic conversion, transfers to optical communication equipment and handles, and realizes the reception of data-signal.
When emissioning testing signal, second light emission component 12 can be the corresponding first test light signal λ 3 with the test light conversion of signals of transmitting in the optical communication equipment, and through second light path 102 from the optical fiber of the output of fiber adapter 16 transmission as for its connection.Particularly, shown in Figure 1A, the first test light signal λ 3 of second light emission component, 12 emissions is incident to optical splitter 18,18 pairs first test light signals of optical splitter λ, 3 partial reflection part transmissions, and transmitted light can be incident to reflective optical system 19; Reflective optical system 19 can reflex to first wavelength division multiplexer 15 with the first test light signal λ 3 that is transmitted through the surface; Reflex to fiber adapter 16 through first wavelength division multiplexer 15, after fiber adapter 16 couplings export connected optical fiber to.
When the acceptance test signal; The second test light signal λ 3 ' that from optical fiber, transfers to fiber adapter 16 can transfer to second optical fiber receive module 14 through the 3rd light path 104; Convert thereof into the corresponding second test signal of telecommunication by second optical fiber receive module 14, transfer to optical communication equipment, handle by optical communication equipment; Wherein, the second test light signal λ 3 ' is the reflected signal of the first test light signal λ 3 when Optical Fiber Transmission.Particularly, shown in Figure 1A, the second test light signal λ 3 ' that returns from fiber reflection can reflex to reflective optical system 19 through this first wavelength division multiplexer 15 after fiber adapter 16 inputs to first wavelength division multiplexer 15; Can be after reflective optical system 19 reflections to optical splitter 18; This optical splitter 18 can be with the transmission of the second test light signal λ, 3 ' partial reflection part; Reverberation can be incident to second optical fiber receive module 14; Carry out transferring in the optical communication equipment and handling after opto-electronic conversion is the corresponding signal of telecommunication through second optical fiber receive module 14.
In the present embodiment, the wavelength of the first above-mentioned data light signal λ 1 can for but be not limited to 1260nm-1360nm, perhaps 1300nm-1320nm, perhaps 1480nm-1500nm, perhaps 1260nm～1280nm, perhaps 1575nm-1580nm.The wavelength of the second data light signal λ 2 can for but be not limited to 1480nm-1500nm, perhaps 1260nm-1360nm, perhaps 1300nm-1320nm or 1575nm-1580nm or 1260nm～1280nm.The wavelength of the first test light signal λ 3 can for but be not limited to 1625nm, perhaps 1650nm, corresponding, the second test light signal λ 3 ' is the reflected signal of the first test light signal λ 3 in optical fiber, its wavelength is identical with the wavelength of the first test light signal λ 3.
It will be appreciated by those skilled in the art that; In same optical transceiver module; The first data light signal λ 1, the second data light signal λ 2 are different with the wavelength of the first test light signal λ 3, in the practical application, and can be according to the light signal of the different choice suitable wavelength of wavelength division multiplexer, optical splitter in the optical transceiver module; The wavelength of the light signal that perhaps also can transmit as required, the wavelength division multiplexer and the optical splitter of selection suitable type.
In the present embodiment, above-mentioned fiber adapter can or be a LC type plug-in fiber connector or for the fine connector of magnetic tape trailer for SC type plug-in fiber connector, and this present embodiment is not done special restriction.
To sum up; The optical transceiver module that the utility model embodiment provides through optical splitter and wavelength division multiplexer are set, forms 4 light paths; Make the test light signal can transmit through different light paths respectively with the data light signal; The test light signal can be handled through different light emission components and optical fiber receive module with the data light signal, thereby can avoid producing the problem of disturbing between data light signal and the test light signal, can effectively improve the accuracy and the reliability of data; Simultaneously, because the special-purpose light path of test optical signals, and special-purpose light emission component and optical fiber receive module transmit, and the test light signal can not receive the influence of data light signal, thereby can effectively improve the OTDR performance.In the present embodiment through between the optical splitter and first wavelength division multiplexer, reflective optical system being set; Thereby can be at grade with first wavelength division multiplexer, second wavelength division multiplexer, optical splitter and reflective optical system setting; Make two optical fiber receive modules and two light emission components can lay respectively at the same side of optical transceiver module, be convenient to optical communication equipment in each processing module between be connected.
The theory structure sketch map of the optical transceiver module that Fig. 2 provides for the utility model embodiment two.Different with Figure 1B illustrated embodiment technical scheme with above-mentioned Figure 1A is; In the present embodiment; Can between second wavelength division multiplexer 17 and first wavelength division multiplexer 15, be provided with reflective optical system 19, make between the light emission component 11 of winning, second wavelength division multiplexer 17, reflective optical system 19, first wavelength division multiplexer 15 and the fiber adapter 16 and can form first light path 101; Can form second light path 102 between second light emission component 12, optical splitter 18, first wavelength division multiplexer 15 and the fiber adapter 16; Can form the 3rd light path 103 between first optical fiber receive module 13, second wavelength division multiplexer 17, reflective optical system 19, first wavelength division multiplexer 15 and the fiber adapter 16; Can form the 4th light path 104 between second optical fiber receive module 14, optical splitter 18, first wavelength division multiplexer 15 and the fiber adapter 16, these 4 light paths same capable of using realize transmitting and receiving data-signal and test signal.
As shown in Figure 2; Only need first light emission component 11 among Figure 1A, second wavelength division multiplexer 17, first optical fiber receive module 13 and second light emission component 12, optical splitter 18, the be oppositely arranged position of second optical fiber receive module 14 in housing be exchanged; Change first wavelength division multiplexer 15 for the first data light signal λ 1 and the second data light signal λ 2 are reflected; Wavelength division multiplexer to the first test light signal λ, 3 transmissions; And change reflective optical system 19 can obtain optical transceiver module shown in Figure 2 for the reflective optical system to the first data light signal λ 1 and the second data light signal λ, 2 reflections; The concrete set-up mode of each optical module in housing can be similar with mode shown in Fig. 1 C, repeats no more at this.
It will be understood by those skilled in the art that the correct position that can as required each optical module be arranged on housing in the practical application, as long as between optical module, forming 4 light paths.
The theory structure sketch map of the optical transceiver module that Fig. 3 provides for the utility model embodiment three.Different with above-mentioned Figure 1A-Fig. 1 C illustrated embodiment technical scheme is; Each optical module in the present embodiment does not comprise reflective optical system; Particularly; As shown in Figure 3; The present embodiment optical transceiver module comprises: first light emission component 11, second light emission component 12, first optical fiber receive module 13, second optical fiber receive module 14, first wavelength division multiplexer 15, fiber adapter 16, second wavelength division multiplexer 17 and optical splitter 18; Wherein, form between first light emission component 11, second wavelength division multiplexer 17, first wavelength division multiplexer 15 and the fiber adapter 16 between first light path, 101, the first optical fiber receive modules 13, second wavelength division multiplexer 17, first wavelength division multiplexer 15 and the fiber adapter 16 and form the 3rd light path 103; Form second light path 102 between second light emission component 12, optical splitter 18, first wavelength division multiplexer 15 and the fiber adapter 16; Form the 4th light path 104 between second optical fiber receive module 14, optical splitter 18, first wavelength division multiplexer 15 and the fiber adapter 16, like this, 4 light paths can realize the transmission and the reception of data light signal and test light signal respectively.
In the present embodiment; Each optical module on first light path 101 and the 3rd light path 103 is positioned at same plane, and promptly first light emission component 11, first optical fiber receive module 13, first wavelength division multiplexer 15, second wavelength division multiplexer 17 and fiber adapter 16 are positioned at first plane; Each optical module on second light path 102, the 4th light path 104 is positioned at same plane; Promptly second light emission component 12, second optical fiber receive module 14, first wavelength division multiplexer 15, optical splitter 18 and fiber adapter 16 are positioned at second plane, and first plane is vertical each other with second plane.In the present embodiment; In light path, be not provided with under the situation of reflective optical system; Can in optical transceiver module, form 4 light paths equally, realize the transmission to data light signal and test light signal, be the not homonymy that two optical fiber receive modules and two light emission components lay respectively at optical transceiver module.
The present embodiment optical transceiver module can be realized 4 light paths equally; Make that data-signal and test signal can be through corresponding optic path; Can carry out the reception and the emission of signal through different optical fiber receive modules and light emission component, making can the phase mutual interference between data-signal and the test signal.
The structural representation of the optical communication equipment that Fig. 4 provides for the utility model embodiment four.The present embodiment optical communication equipment is integrated with OTDR, and is as shown in Figure 4 particularly can the optical fiber state being detected, and optical communication equipment comprises data-signal processing module 10, test signal processing module 20 and optical transceiver module 30, wherein:
Data-signal processing module 10 is connected with first optical fiber receive module with first light emission component in the optical transceiver module 30; Can be used for transmitting the corresponding datagram of data to be sent number to first light emission component; So that number converting this datagram into the data light signal by first light emission component is transmitted in the optical fiber and goes; And the corresponding datagram of the data that can be used for receiving the transmission of first optical fiber receive module number, and the datagram that receives number handled accordingly;
Test signal processing module 20 is connected with second optical fiber receive module with second light emission component in the optical transceiver module 30; Can be used for testing the signal of telecommunication accordingly to second light emission component transmission test data to be sent; So that should test electrical signal conversion by second light emission component goes for the test light signal is transmitted in the optical fiber; And can be used for receiving the corresponding test signal of telecommunication of test data that second optical fiber receive module transmits, and the test signal of telecommunication that receives is handled accordingly.
In the present embodiment, data-signal processing module 10 can realize the function in traditional optical communication equipment data-signal handled, realizes the transmission and the reception of data-signal, and its concrete structure can be identical with traditional optical communication equipment; Test signal processing module 20 can realize the OTDR function, with realization the optical fiber state is tested, and its concrete structure can be identical with traditional OTDR; Optical transceiver module 30 can be and adopts the light transmitting-receiving subassembly of above-mentioned Figure 1A-Fig. 3 shown in arbitrary; Can realize the transmitting-receiving of data-signal and test signal; Because data-signal transmits through different light paths with test signal; Can avoid the interference that produces between data-signal and the test signal, improve the accuracy of data, and can improve the OTDR test performance.
The structural representation of the optical communication system that Fig. 5 provides for the utility model embodiment five.As shown in Figure 5; The present embodiment optical communication system can comprise: optical line terminal 1, Optical Distribution Network 2 and optical network unit 3; Wherein optical line terminal 1 and/or optical network unit 3 can adopt optical communication equipment shown in Figure 4; Optical line terminal 1 is connected with Optical Distribution Network 2, and Optical Distribution Network 2 is connected with at least one optical network unit 3, all is to connect through optical fiber between each module.
Optical communication system specifically can be EPON (Passive Optical Network in the present embodiment; PON) system; Optical line terminal (Optical Line Terminal; OLT) 1 can pass through the optical-fiber network distribution network (Optical Distribution Network ODN) 2 is connected to a plurality of optical network units (Optical Network Unit, ONU) 3 with the form of putting multiple spot; Its concrete structure can be identical with the traditional passive optical-fiber network or similar, and just optical line terminal 1 and/or optical network unit 3 can adopt optical communication equipment shown in Figure 4.
What should explain at last is: above each embodiment is only in order to the technical scheme of explanation the utility model, but not to its restriction; Although the utility model has been carried out detailed explanation with reference to aforementioned each embodiment; Those of ordinary skill in the art is to be understood that: it still can be made amendment to the technical scheme that aforementioned each embodiment put down in writing, perhaps to wherein part or all technical characteristic are equal to replacement; And these are revised or replacement, do not make the scope of each embodiment technical scheme of essence disengaging the utility model of relevant art scheme.
Claims (13)
1. an optical transceiver module is characterized in that, comprising: first light emission component, second light emission component, first optical fiber receive module, second optical fiber receive module, first wavelength division multiplexer and fiber adapter, wherein:
Form first light path between said first light emission component, first wavelength division multiplexer and the fiber adapter, form second light path between said second light emission component, first wavelength division multiplexer and the fiber adapter;
On said first light path, between said first wavelength division multiplexer and first light emission component, be provided with second wavelength division multiplexer, and form the 3rd light path between said first optical fiber receive module, second wavelength division multiplexer, first wavelength division multiplexer and the fiber adapter;
On said second light path, between said first wavelength division multiplexer and second light emission component, be provided with optical splitter, and form the 4th light path between said second optical fiber receive module, optical splitter, first wavelength division multiplexer and the fiber adapter;
The first data light signal of said first light emission component emission is through said first optic path to said fiber adapter, from the second data light signal of said fiber adapter input through said the 3rd optic path said first optical fiber receive module extremely;
The first test light signal of said second light emission component emission is through said second optic path to said fiber adapter; Through said the 4th optic path said second optical fiber receive module extremely, the said second test light signal is the reflected light signal of the said first test light signal in optical fiber from the second test light signal of said fiber adapter input.
2. optical transceiver module according to claim 1 is characterized in that, is provided with reflective optical system between the said optical splitter and first wavelength division multiplexer.
3. optical transceiver module according to claim 1 is characterized in that, is provided with reflective optical system between said second wavelength division multiplexer and first wavelength division multiplexer.
4. optical transceiver module according to claim 1 is characterized in that, also comprises housing, and each optical module is arranged in the said housing.
5. optical transceiver module according to claim 4 is characterized in that, is provided with supporting construction in the said housing, and each optical module is installed in the said housing through corresponding supporting construction.
6. according to claim 2 or 3 described optical transceiver modules, it is characterized in that also comprise housing, each optical module is arranged in the said housing.
7. optical transceiver module according to claim 6 is characterized in that, is provided with a plurality of supporting constructions in the said housing, and each optical module is installed in the said housing through corresponding supporting construction.
8. optical transceiver module according to claim 8; It is characterized in that; Said first wavelength division multiplexer and said first light path are miter angle, said reflective optical system and second light path and are miter angle and tilt to be installed on the same plane a in the said housing, and said plane a is the plane that said first light path and second light path form;
Said second wavelength division multiplexer is miter angle with first light path and tilts to be installed on the plane b vertical with said plane a;
Said optical splitter is miter angle with second light path and tilts to be installed on the plane c vertical with said plane a.
9. according to the arbitrary described optical transceiver module of claim 1-3, it is characterized in that, be provided with first optical isolator between said second wavelength division multiplexer and first light emission component.
10. according to the arbitrary described optical transceiver module of claim 1-3, it is characterized in that, be provided with second optical isolator between the said optical splitter and second light emission component.
11. optical transceiver module according to claim 1 is characterized in that, a side of said optical splitter is provided with light absorber, is used to absorb the light signal of the first test light signal process spectrophotometric reflection on said second light path.
12. an optical communication equipment is characterized in that, comprises the arbitrary described optical transceiver module of data-signal processing module, test signal processing module and claim 1-10, wherein:
Said data-signal processing module is connected with first optical fiber receive module with first light emission component in the said optical transceiver module;
Said test signal processing module is connected with second optical fiber receive module with second light emission component in the said optical transceiver module.
13. an optical communication system is characterized in that, comprises optical line terminal, Optical Distribution Network and optical network unit, wherein said optical line terminal adopts the described optical communication equipment of claim 12;
Said optical line terminal is connected with said Optical Distribution Network, and said Optical Distribution Network is connected with at least one said optical network unit.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200753765U CN202444490U (en) | 2012-03-02 | 2012-03-02 | Optical transceiver module, optical communication device and optical communication system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012200753765U CN202444490U (en) | 2012-03-02 | 2012-03-02 | Optical transceiver module, optical communication device and optical communication system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109475A (en) * | 2012-10-15 | 2013-05-15 | 华为技术有限公司 | Single fiber bidirectional optical component and working method thereof |
| WO2019153181A1 (en) * | 2018-02-08 | 2019-08-15 | 徐州旭海光电科技有限公司 | Low-crosstalk single-core bidirectional optical component |
| CN110178065A (en) * | 2019-04-11 | 2019-08-27 | 深圳市亚派光电器件有限公司 | Light emission component and preparation method thereof |
-
2012
- 2012-03-02 CN CN2012200753765U patent/CN202444490U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103109475A (en) * | 2012-10-15 | 2013-05-15 | 华为技术有限公司 | Single fiber bidirectional optical component and working method thereof |
| WO2014059580A1 (en) * | 2012-10-15 | 2014-04-24 | 华为技术有限公司 | A single fiber bidirectional optical element and working method thereof |
| CN103109475B (en) * | 2012-10-15 | 2016-08-03 | 华为技术有限公司 | Single fiber bidirectional optical component and method of work thereof |
| WO2019153181A1 (en) * | 2018-02-08 | 2019-08-15 | 徐州旭海光电科技有限公司 | Low-crosstalk single-core bidirectional optical component |
| CN110178065A (en) * | 2019-04-11 | 2019-08-27 | 深圳市亚派光电器件有限公司 | Light emission component and preparation method thereof |
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