CN201438229U - Parallel optical module - Google Patents
Parallel optical module Download PDFInfo
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- CN201438229U CN201438229U CN2009201105556U CN200920110555U CN201438229U CN 201438229 U CN201438229 U CN 201438229U CN 2009201105556 U CN2009201105556 U CN 2009201105556U CN 200920110555 U CN200920110555 U CN 200920110555U CN 201438229 U CN201438229 U CN 201438229U
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Abstract
The utility model provides a parallel optical module, belonging to the technical field of communication. The parallel optical module comprises a shell, an interface component, a plurality of amplifiers, at least two optical components and at least one multi-fiber connector. The interface component, the amplifiers, at least two optical components and at least one multi-fiber connector are all packaged in the shell; the signal input end of each optical component is respectively connected to the interface component through one amplifier; the signal output end of each optical component is respectively connected to the interface component through another amplifier; the multi-fiber connector comprises at least two connectors and a multi-fiber socket; each connector is respectively connected with the multi-fiber socket through optical fiber; optical interfaces of the optical components are correspondingly connected with the connectors of the multi-fiber connector; and the multi-fiber socket of the multi-fiber connector is used as an optical interface of the parallel optical module. The parallel optical module realizes higher integration of the optical interface at lower cost.
Description
Technical field
The utility model relates to communication technical field, relates in particular to a kind of parallel optical module.
Background technology
Continuous development along with optical communication technique, arrive X (FTTx at optical fiber, Fiber to The X (Building, Home), be that Fiber To The Building for FTTB, Fiber to the home for FTTH) fibre-optic terminus, field client is explosion type and increases sharply, cause telecom operators' local side machine room fiber flash pressure to increase, in FTTx uses, the normal fan-out that adopts the miniaturization pluggable optical module SFP mode of gathering to carry out the light mouth of local side optical line terminal (OLT, an Optical Line Terminal) side veneer, but because each miniaturization pluggable optical module (SFP, SFP, Small Form-Factor Pluggable) can only be used for the communication of this passage by fan-out one tunnel (duplex, single fiber bi-directional) light mouth.When needs increase light mouth quantity, bring serious challenge for structure, the fiber design of local side apparatus, the mode of miniaturization pluggable optical module SFP of gathering on the one hand is very limited to the densely covered degree that promotes the light mouth, also increased the difficulty of single plate structure, heat radiation simultaneously; Miniaturization pluggable optical module SFP adopts the optical fiber interface of LC on the other hand, and the number of fibers of fan-out increases suddenly, and local side rack fan-out optical fiber ability is critical, and causes original output groove to face the problem that can not effectively make the optical fiber fan-out.
Prior art provides a kind of planar lightguide circuit (PLC that utilizes, Planar LightwaveCircuit) technology realizes the optical device of little space encapsulation, can satisfy FTTx use in to the requirement of transmission range, this PLC technology is different from the technology that traditional TO-CAN mode is encapsulated into OSA, mainly be with chip of laser, receiver chip mounts in the optical waveguide substrate of silicon etching, realize the coupling of light path by the combination of optical waveguide and prism, more traditional OSA optical device packaged type can reduce volume, to what should technology make is the CSFP optical module, it is Compact SFP optical module, in the inner optical communication path that realizes two-way of CSFP encapsulation, more traditional SFP optical module integrated level promotes one times.But because the optical assembly of PLC technology has a plurality of parts, and need to adopt complicated and meticulous little package technique is assembled, the optical device circuit cost that causes utilizing the plane light wave waveguide technology to realize the encapsulation of little space is higher.
Because CSFP optical module inside also only realized light mouth density and promoted one times, flash pressure that can only the respite part, very limited to the lifting that the light mouth is integrated; And,, also cause this CSFP optical module cost higher, and be not suitable for field the more sensitive FTTx of cost owing to utilize the planar lightguide circuit technology.Therefore, how to realize at lower cost that a kind of light mouth integrated level height, the parallel optical module that cost is low are urgent problems.
The utility model content
The utility model embodiment provides a kind of parallel optical module, and its light mouth integrated level height and cost are low, are applicable to the FTTx application scenarios.
The utility model embodiment provides a kind of parallel optical module, comprising:
Shell, interface module, a plurality of amplifier, at least two optical assemblies and at least one multifiber connector;
Described interface module, a plurality of amplifier, at least two optical assemblies and at least one multifiber connector all encapsulate in the enclosure, the signal input part of each optical assembly is connected to described interface module by an amplifier respectively, and the signal output part of each optical assembly is connected to described interface module by another amplifier respectively;
Described multifiber connector comprises: at least two connect plug-in unit and many optical fiber socket; Described each connection plug-in unit all is connected with many optical fiber socket respectively by optical fiber; The light mouth of described optical assembly and the corresponding connection of the connection plug-in unit of described multifiber connector; Many optical fiber socket of described multifiber connector is as the optical interface of the optical module that should walk abreast.
The technical scheme that is provided by above-mentioned the utility model embodiment as can be seen, the utility model embodiment is by encapsulating at least two optical assemblies and at least one multifiber connector in the enclosure, and under the cooperation of a plurality of amplifiers and interface module, form parallel optical module.Owing to adopt multifiber connector, making the external optical interface of parallel optical module of formation is many optical fiber socket, can be with MPO (Multi-fiber Push-On, many optical fiber socket) mode fan-out, improved light mouth fan-out density, realized higher light mouth integrated level at lower cost, be applicable to require during the low FTTx of light mouth integrated level height, cost uses.
Description of drawings
In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is embodiment more of the present utility model, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawings according to these accompanying drawings.
The inner structure synoptic diagram of the parallel optical module that Fig. 1 provides for the utility model embodiment one;
The multifiber connector structural representation of the parallel optical module that Fig. 2 provides for the utility model embodiment one;
Fig. 3 has the BOSA optical device floor map of LC ceramic sleeve as the light mouth for what the utility model embodiment one provided;
Fig. 4 has the BOSA optical device schematic perspective view of LC ceramic sleeve as the light mouth for what the utility model embodiment one provided;
The fundamental diagram of the BOSA optical device that Fig. 5 provides for the utility model embodiment one;
The synoptic diagram that the multifiber connector that Fig. 6 provides for the utility model embodiment one is connected with the BOSA optical device;
The inner structure synoptic diagram of the parallel optical module that Fig. 7 provides for the utility model embodiment two;
The inner structure synoptic diagram of the parallel optical module that Fig. 8 provides for the utility model embodiment three.
Embodiment
For ease of understanding, below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described, obviously, described embodiment only is the utility model part embodiment, rather than whole embodiment.Based on the embodiment in the utility model, those of ordinary skills are not making the every other embodiment that is obtained under the creative work prerequisite, all belong to the scope of the utility model protection.
Embodiment one
Present embodiment provides a kind of parallel optical module, can be applicable in the FTTx scene to improve light mouth density as the optical module of fanning light-emitting window, and as shown in Figure 1, this parallel optical module comprises:
Described interface module 12, a plurality of amplifier, at least two optical assemblies and at least one multifiber connector 11 all are encapsulated in the shell 10, the signal input part of each optical assembly is connected with interface module 12 by an amplifier LDD, the signal output part of each optical assembly is connected with interface module 12 by another amplifier LA, the amplifier LDD that is connected with each optical assembly signal input part can adopt driving amplifier, and the amplifier LA that is connected with each optical assembly signal output part can adopt limiting amplifier or post amplifier; Described multifiber connector 11 comprises: at least two connect plug-in unit and many optical fiber socket; Described each connection plug-in unit all is connected with many optical fiber socket respectively by optical fiber; The light mouth of described optical assembly and the corresponding connection of the connection plug-in unit of described multifiber connector; Many optical fiber socket of described multifiber connector is as the optical interface of the external connection of the optical module that should walk abreast.
Wherein, the light mouth of optical assembly can adopt ceramic sleeve, and the connection plug-in unit of multifiber connector can adopt ceramic plunger, during the corresponding connection of connection plug-in unit of the light mouth of optical assembly and described multifiber connector, plug-in unit pottery plunger is corresponding one by one to be inserted in the ceramic sleeve of optical assembly as the light mouth as connecting with multifiber connector, and the realization multifiber connector is connected with each optical assembly.
In conjunction with Fig. 1, adopting BOSA (Bi-direction Optical Sub-assembly) bi-directional light device with optical assembly is example, and above-mentioned parallel optical module is described further:
In this parallel optical module, adopt N BOSA optical device, a plurality of amplifiers, a multifiber connector 11 and a golden finger are as interface module 12, wherein, N BOSA optical device, a plurality of amplifiers, a multifiber connector 11 and an interface module 12 (can adopt golden finger) all are encapsulated in the shell 10, the signal input part of each BOSA optical device is connected with interface module 12 by an amplifier LDD (driving amplifying circuit), the signal output part of each BOSA optical device also is connected with interface module 12 by an amplifier LA (amplitude limiting amplifier circuit or rearmounted amplifying circuit), form parallel schema between N BOSA optical device like this, each BOSA optical device has a light mouth, it (is optical interface that the light mouth of each BOSA optical device and multifiber connector one is connected plug-in unit, generally can adopt ceramic plunger) the corresponding connection, the concrete structure of multifiber connector as shown in Figure 2, mainly be divided into the two large divisions: a plurality of connection plug-in units 1 and many optical fiber socket, a plurality of connection plug-in units 1 are connected with many optical fiber socket by optical fiber, many optical fiber socket is mainly by ribbon fiber 3, optical fiber jacket 4, bolt-lock 5, socket 6 and location mortise lock 7 constitute, wherein, one end of ribbon fiber is connected with plug, and ribbon fiber is provided with optical fiber jacket outward; Plug is provided with bolt-lock outward, is provided with at least two optical fiber slots in the plug, and plug is provided with fastening screw.The other end of ribbon fiber is used for connecting with the plug-in unit that is connected of outside by optical fiber.
In the above-mentioned parallel optical module, the surface structure of BOSA optical device such as Fig. 3, shown in 4, the light mouth of each BOSA optical device generally adopts ceramic sleeve, when N parallel BOSA optical device is connected with multifiber connector 11, each ceramic plunger correspondence as connecting plug-in unit of multifiber connector 11 is inserted in the ceramic sleeve (being the light mouth) of BOSA optical device, the parallel BOSA optical device of N is with after multifiber connector is connected like this, it is parallel to have formed multichannel BOSA optical device, and carry out fan-out by multifiber connector, make the external optical interface of this parallel optical module be MPO (Multi-fiber Push-On, many optical fiber socket) mode.
BOSA optical device in the above-mentioned parallel optical module can be applicable to the FTTx field, this BOSA optical device can realize receiving and dispatching the light of different wave length by the prism of inside, light to transmitting-receiving on light path separates, the principle of work of this BOSA optical device as shown in Figure 5, be provided with laser instrument 24 in it, receiver 25 and prism 21, laser instrument 24 links to each other with prism 21 respectively with receiver 25, the input/output terminal of prism 21 is connected with optical fiber 22, be provided with light splitting piece 23 in the prism 21, can receive and dispatch different wave length λ 1 by the light splitting piece 23 in the prism 21, λ 2 light signals are realized the light path separation.The amplifier LDD and the amplitude limiting amplifier circuit LA that are connected with each BOSA optical device can finish this BOSA optical device place light path make a start driving amplification, the electric light conversion of electric signal and the amplitude limit enlarging function of receiving end faint light electric signal.The optical fiber of the optical communication channel of each BOSA optical device finally carries out " converging " at multifiber connector, and the external optical interface of this parallel optical module presents the MPO mode and carries out the optical fiber fan-out.The light mouth of BOSA optical device and the connected mode of multifiber connector optical interface can be referring to Fig. 6, and what the light mouth of this BOSA optical device 21 adopted is LC ceramic sleeve 201.What the connection plug-in unit of multifiber connector adopted is LC pottery plunger 1, when the light mouth of BOSA optical device is connected with the multifiber connector optical interface, the LC pottery plunger of the connection plug-in unit of multifiber connector is inserted in the LC ceramic sleeve of BOSA optical device light mouth, realized BOSA optical device be of coupled connections (referring to Fig. 6) to the multifiber connector optical interface, thereby make this parallel optical module with many optical fiber socket of multifiber connector optical interface, realized that this parallel optical module carries out fan-out in the MPO mode as fan-out.Can know that in the parallel optical module of the utility model embodiment, the connected mode of bi-directional light assembly and multifiber connector is not only limited to LC ceramic sleeve and LC pottery plunger, various common ceramic sleeves can use with cooperating all of ceramic plunger.All can use as SC (Super Connector or Square Connector outward appearance is square fibre-optical splice), FC (Ferrule Connector contact pin connector), ST/BFOC (Straight Tip/BayonetFiber Optic Connector directly carries/the bayonet formula joints of optical fibre) etc.
In the above-mentioned parallel optical module, can coil fibre to the optical fiber that inner optical device is connected with multifiber connector, make the optical fiber that is connected between each optical assembly and the multifiber connector, be arranged in the mode that is fit in the shell 10 of parallel optical module, realize the design of internal circuit densification, be convenient to the encapsulation of parallel optical module; By the console panel fibre, in less space, realize the integrated of a plurality of BOSA optical device light paths, Parallel Implementation light mouth fan-out.Simultaneously, can improve the quantity of fan-out optical fiber as required, and then realize the parallel optical module of high density of (as 6 tunnel, 8 tunnel, 12 tunnel, 12 tunnel with first-class) multiple quantity more than 4 tunnel.
The parallel optical module that present embodiment provides, because effective separation that the prism (perhaps being optical filter) of the BOSA optical device inside of adopting can realize receiving and dispatching two kinds of wavelength, can be considered a kind of WDM (wavelength-division multiplex), and each independently the BOSA optical device have independently driving amplifier and limiting amplifier, form array arrangement, can be considered a kind of space division multiplexing.Therefore, the utility model embodiment has realized a kind of low cost, highdensity parallel optical module by a kind of wavelength-division multiplex and the shared mode of space division multiplexing.Should walk abreast optical module with lower cost, effectively improved the integrated level of light mouth, can well be applied in the FTTx scene.
Embodiment two
Present embodiment two provides a kind of parallel optical module, is a kind of 4 tunnel parallel optical module (referring to Fig. 7).Should adopt 4 BOSA optical devices, 8 amplifiers, a multifiber connector 11 and an interface module 12 (can adopt golden finger) by parallel optical module with 4 tunnel fan-out optical fiber; Wherein, 4 BOSA optical devices, 8 amplifiers, a multifiber connector 11 and the interface module 12 with 4 tunnel fan-out optical fiber all are encapsulated in the shell 10; The input end of each BOSA optical device is connected to interface module 12 through a driving amplifier LDD, the output terminal of each BOSA optical device is connected to interface module 12 through a limiting amplifier LA, the light mouth of each BOSA optical device connects one to one with the plug-in unit that respectively is connected of multifiber connector 11 respectively, the connection plug-in unit (as: can be LC pottery plunger) that is about to multifiber connector is inserted to respectively in the light mouth (as being the LC ceramic sleeve) of each BOSA optical device, realize that both are of coupled connections, and then form 4 tunnel parallel optical module, the parallel external optical interface of optical module is somebody's turn to do in socket 6 (having 4 sockets in this socket 6) conduct by multifiber connector, makes this parallel optical module externally be MPO mode fan-out.Each parts annexation is basic identical with embodiment one in the present embodiment, can be referring to embodiment one, in this repeat specification no longer one by one.
Utilize 4 BOSA optical devices to cooperate in the present embodiment, realized 4 road optical modules that walk abreast at lower cost, can be applied in easily and improve light mouth density among the FTTx with a multifiber connector with 4 tunnel fan-out optical fiber.
Embodiment three
Present embodiment three provides a kind of parallel optical module, the scheme that provides a kind of a plurality of BOSA optical device to cooperate with a plurality of multifiber connectors, as shown in Figure 8, the parallel optical module that provides in the structure of this parallel optical module and the foregoing description one, two is basic identical, different is to have adopted a plurality of multifiber connector 11～1N, a plurality of multifiber connector 11～1N are connected one to one with the light mouth of a plurality of BOSA optical devices respectively, make this parallel optical module that a plurality of sockets are externally arranged after the connection, effectively improved the integrated level of light mouth.Basic identical among the annexation of other each parts that should parallel optical module and the embodiment one, two, in this repeat specification no longer one by one, the parallel optical module of this structure can effectively improve the light path number that walks abreast, and helps the lifting of local side light mouth density during application.
Just with the example of BOSA optical device as the bi-directional light assembly that encapsulates based on TO-CAN, embodiment describes the various embodiments described above to the utility model.Can know, under the prerequisite that does not break away from the utility model guiding theory, the various optical devices of transmission range that guarantee all can use in this parallel optical module, and especially lower-cost TOSA optical device, ROSA optical device and three-dimensional optical device based on the TO-CAN encapsulation all can be used as optical assembly and be applied in this parallel optical module.
In sum, among the utility model embodiment, utilize cheap OSA optical device, carry out organic the combination, effectively improved the light mouth integrated level of parallel optical module with the MPO fan-out mode of multifiber connector based on the TO-CAN encapsulation.Cost is low, processing and manufacturing is easy to characteristics owing to possess than the optical assembly of PLC technology based on the OSA optical device of TO-CAN encapsulation, has realized solving highdensity parallel optical module with low cost.
And this parallel optical module can be selected the specification of OSA optical device according to the transmission performance needs, if selection single-mode laser OSA that performance is good, luminous power is bigger and highly sensitive OSA can obtain to transmit the above performance advantage of 10km.Therefore, the parallel optical module of the utility model embodiment can solve the difficult problem of existing FTTx telecom operators local side optical interface fan-out density, is possessing huge advantage aspect cost and the lifting of light mouth density.The optical module that should walk abreast also may be used on all and requires optical module optical channel integrated level to promote, and surpasses the application scenarios of multimode optical fiber transmission range scope.
The above; it only is the preferable embodiment of the utility model; but protection domain of the present utility model is not limited thereto; the utility model is not caused any restriction because of the precedence of each embodiment yet; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; the variation that can expect easily or replacement all should be encompassed within the protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of claim.
Claims (9)
1. a parallel optical module is characterized in that, comprising:
Shell, interface module, a plurality of amplifier, at least two optical assemblies and at least one multifiber connector;
Described interface module, a plurality of amplifier, at least two optical assemblies and at least one multifiber connector all encapsulate in the enclosure, the signal input part of each optical assembly is connected to described interface module by an amplifier respectively, and the signal output part of each optical assembly is connected to described interface module by another amplifier respectively;
Described multifiber connector comprises: at least two connect plug-in unit and many optical fiber socket; Described each connection plug-in unit all is connected with many optical fiber socket respectively by optical fiber; The light mouth of described optical assembly and the corresponding connection of the connection plug-in unit of described multifiber connector; Many optical fiber socket of described multifiber connector is as the optical interface of the optical module that should walk abreast.
2. parallel optical module according to claim 1 is characterized in that, described many optical fiber socket comprises: ribbon fiber, optical fiber jacket, fasten lock, plug and fastening screw;
One end of described ribbon fiber is connected with plug, and ribbon fiber is provided with optical fiber jacket outward, the ribbon fiber other end be used for by optical fiber be connected plug-in unit and connect; Plug is provided with bolt-lock outward, is provided with at least two optical fiber slots in the plug, and plug is provided with fastening screw.
3. parallel optical module according to claim 1 and 2 is characterized in that, described connection plug-in unit comprises: ceramic plunger; The light mouth of described optical assembly comprises: ceramic sleeve.
4. parallel optical module according to claim 1 is characterized in that, described optical assembly is the optical assembly based on the TO-CAN encapsulation.
5. according to claim 1 or 4 described parallel optical modules, it is characterized in that described optical assembly is unidirectional optical assembly, bi-directional light assembly or three-dimensional optical assembly.
6. parallel optical module according to claim 5 is characterized in that, described optical assembly comprises: any in BOSA optical device, TOSA optical device, ROSA optical device, the three-dimensional optical device.
7. parallel optical module according to claim 1 and 2 is characterized in that, the amplifier that the signal input part of described optical assembly connects is a driving amplifier.
8. parallel optical module according to claim 1 and 2 is characterized in that, the amplifier that the signal output part of described optical assembly connects is limiting amplifier or post amplifier.
9. parallel optical module according to claim 1, it is characterized in that connect corresponding with the connection plug-in unit of described multifiber connector of the light mouth of described optical assembly comprises: each of multifiber connector connected in each light mouth that plug-in unit is inserted to optical assembly respectively connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201105556U CN201438229U (en) | 2009-07-29 | 2009-07-29 | Parallel optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201105556U CN201438229U (en) | 2009-07-29 | 2009-07-29 | Parallel optical module |
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| CN201438229U true CN201438229U (en) | 2010-04-14 |
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| CN2009201105556U Expired - Fee Related CN201438229U (en) | 2009-07-29 | 2009-07-29 | Parallel optical module |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011110070A1 (en) * | 2010-08-04 | 2011-09-15 | 华为技术有限公司 | Optical module and manufacturing method thereof |
| CN103441801A (en) * | 2013-08-26 | 2013-12-11 | 四川飞阳科技有限公司 | Optical line terminal manufacturing method, optical line terminal and passive optical network local side device |
| CN103597387A (en) * | 2011-03-04 | 2014-02-19 | 阿尔卡特朗讯 | Dynamic spatial-mode allocation in an under-addressed optical MIMO system |
| CN108873190A (en) * | 2018-06-25 | 2018-11-23 | 重庆霓扬科技有限责任公司 | A kind of integrated opto-electronic receiver module and its production technology containing low-noise amplifier |
| WO2019233010A1 (en) * | 2018-06-05 | 2019-12-12 | 昂纳信息技术（深圳）有限公司 | Optical structure for improving electromagnetic radiation resistance performance and optical module |
-
2009
- 2009-07-29 CN CN2009201105556U patent/CN201438229U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011110070A1 (en) * | 2010-08-04 | 2011-09-15 | 华为技术有限公司 | Optical module and manufacturing method thereof |
| US8705910B2 (en) | 2010-08-04 | 2014-04-22 | Huawei Technologies Co., Ltd. | Optical module manufacturing method and optical module |
| CN103597387A (en) * | 2011-03-04 | 2014-02-19 | 阿尔卡特朗讯 | Dynamic spatial-mode allocation in an under-addressed optical MIMO system |
| CN103597387B (en) * | 2011-03-04 | 2018-04-03 | 阿尔卡特朗讯 | Owe the dynamic space pattern distribution in the optics mimo system of addressing |
| US9995879B2 (en) | 2011-03-04 | 2018-06-12 | Alcatel Lucent | Dynamic spatial-mode allocation in an under-addressed optical MIMO system |
| CN103441801A (en) * | 2013-08-26 | 2013-12-11 | 四川飞阳科技有限公司 | Optical line terminal manufacturing method, optical line terminal and passive optical network local side device |
| CN103441801B (en) * | 2013-08-26 | 2016-05-11 | 四川飞阳科技有限公司 | Optical line terminal preparation method, optical line terminal, passive optical network local side apparatus |
| WO2019233010A1 (en) * | 2018-06-05 | 2019-12-12 | 昂纳信息技术（深圳）有限公司 | Optical structure for improving electromagnetic radiation resistance performance and optical module |
| CN108873190A (en) * | 2018-06-25 | 2018-11-23 | 重庆霓扬科技有限责任公司 | A kind of integrated opto-electronic receiver module and its production technology containing low-noise amplifier |
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Granted publication date: 20100414 Termination date: 20130729 |