WO2014015542A1 - 一种高性能光纤快速成端组件 - Google Patents

一种高性能光纤快速成端组件 Download PDF

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Publication number
WO2014015542A1
WO2014015542A1 PCT/CN2012/079931 CN2012079931W WO2014015542A1 WO 2014015542 A1 WO2014015542 A1 WO 2014015542A1 CN 2012079931 W CN2012079931 W CN 2012079931W WO 2014015542 A1 WO2014015542 A1 WO 2014015542A1
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WIPO (PCT)
Prior art keywords
optical fiber
ferrule body
fiber
ferrule
performance
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PCT/CN2012/079931
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English (en)
French (fr)
Inventor
郑镇宏
陈树城
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潮州三环（集团）股份有限公司
南充三环电子有限公司
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Application filed by 潮州三环（集团）股份有限公司, 南充三环电子有限公司 filed Critical 潮州三环（集团）股份有限公司
Priority to KR2020127000061U priority Critical patent/KR20140003383U/ko
Priority to US13/818,261 priority patent/US20140029896A1/en
Priority to EP12813249.5A priority patent/EP2713192A4/en
Priority to JP2015600056U priority patent/JP3198724U/ja
Publication of WO2014015542A1 publication Critical patent/WO2014015542A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/3833—Details of mounting fibres in ferrules; Assembly methods; Manufacture
    • G02B6/3846—Details of mounting fibres in ferrules; Assembly methods; Manufacture with fibre stubs
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3801—Permanent connections, i.e. wherein fibres are kept aligned by mechanical means
    • G02B6/3806—Semi-permanent connections, i.e. wherein the mechanical means keeping the fibres aligned allow for removal of the fibres
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means
    • G02B6/3807—Dismountable connectors, i.e. comprising plugs
    • G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
    • G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
    • G02B6/382—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with index-matching medium between light guides

Definitions

  • the utility model belongs to the technology of optical fiber termination, in particular to a high-performance optical fiber rapid termination component.
  • one pre-embedding method is to embed an optical fiber in the inner hole of the ceramic ferrule.
  • One end of the optical fiber and the ceramic ferrule are ground and polished to form an end butt with the normal connector.
  • the other end is exposed to a certain length and the end face is flat, and then the exposed end fiber is installed in a V-shaped groove.
  • the V-shaped groove is equipped with a corresponding optical fiber pressing block to fix the connection of the external fiber and the embedded fiber.
  • the matching gel is preset in the V-shaped groove in advance, and an optical cable locking device is also attached.
  • the optical fiber is cut and connected through the V-groove and the embedded optical fiber to realize quick connection.
  • One end of the pre-embedded optical fiber in this pre-embedded fast-end assembly is exposed outside the ferrule, which is easy to break during the entire process, resulting in product scrapping, and the production of V-grooves is difficult, and the precision is not high during mass production, and the fiber connection cannot be realized. Coaxial butt joints lead to large insertion loss.
  • the first-time success rate of on-site assembly is low, and about 10% of them need to be assembled twice.
  • Another kind of pre-embedded fast-end assembly such as the Chinese patent application'application number 201110345399.3, the subject is a high-performance optical fiber fast-end assembly' records, the embedded optical fiber and the butt optical fiber are in the inner hole of the docking platform To realize the docking, it uses the high-precision inner hole of the ceramic ferrule to replace the existing plastic V-groove, so that the embedded optical fiber is protected by the inner hole of the ferrule. This technical solution has good optical performance and high reliability.
  • the ceramic ferrule in this kind of pre-embedded quick-end assembly requires special production, high cost, and low versatility.
  • the technical problem solved by the utility model is to overcome the shortcomings of the prior art and provide a low-cost, high-performance optical fiber fast end-forming assembly with strong versatility.
  • the utility model is simple to install, and can realize the efficient and fast docking of the embedded optical fiber and the access optical fiber.
  • a high-performance optical fiber rapid end assembly which comprises a first ferrule body and a second ferrule body connected as a whole by a connector, the first ferrule body and the second ferrule body are provided with an inner hole, and the second ferrule body A gap is provided in the middle of the ferrule body to expose the inner hole.
  • a docking platform is formed at the gap to realize the docking of the pre-buried fiber and the butt fiber.
  • the docking platform is provided with a fiber pair for pressing the pre-buried fiber and the docking fiber.
  • the first ferrule body and the second ferrule body in the utility model can be realized by using a common ceramic ferrule body, which replaces the ceramic ferrule that needs to be specially made by the combination of the first ferrule body and the second ferrule body.
  • the core body greatly reduces the production cost, and this solution has good optical performance and high reliability;
  • the docking platform is located in the middle of the second ferrule body, so that the pressing device is placed in it and the second ferrule is used The two ends of the body are limited, and the first ferrule body and the second ferrule body are connected by a connecting piece, which can prevent the displacement of the pressing device and ensure that the embedded optical fiber is not exposed after the completion of the docking.
  • the pressing device includes a pressing block arranged at the docking platform and a fixing member arranged on the pressing block to fix the pressing block.
  • the middle of the pressing block is exposed to ensure that the butted optical fiber on the docking platform is fully compressed and accurately butted, so as to avoid the problem of insufficient optical fiber compression caused by the uneven lower plane of the pressing block or the docking platform.
  • the fixing member is a tight hoop.
  • the access ends of the first ferrule body and the second ferrule body are both provided with optical fiber introduction holes.
  • the fiber introduction hole may be set as a V-shaped introduction hole, which facilitates the insertion of the docking fiber into the inner hole of the docking platform, and at the same time protects the end face of the fiber from being damaged by impact.
  • the end surface of the first ferrule body and the end of the pre-embedded optical fiber corresponding to the end surface are ground and polished to form an end fitting with a conventional connector.
  • the connecting member is a collar.
  • the mating end face of the pre-embedded optical fiber is preset with optical fiber matching gel.
  • the first ferrule body and the second ferrule body in the present invention can be realized by using a common ceramic ferrule body, which replaces the need for special production by the combination of the first ferrule body and the second ferrule body
  • the ceramic ferrule body can not only ensure that the utility model has good optical performance and high reliability, but also can greatly reduce the production cost and improve the general performance of the utility model. .
  • the embedded optical fiber of the present invention and the docking optical fiber realize the docking in the inner hole of the docking platform, so as to avoid the defect that the embedded optical fiber is exposed and easily broken .
  • the docking platform is located in the middle of the second ferrule body, so that the pressing device is placed in it and the two ends of the second ferrule body are used to realize the limit.
  • the first ferrule body and the second ferrule body are connected through Connecting parts can not only prevent the displacement of the pressing device, but also prevent the pre-embedded optical fiber from being exposed after the completion of the docking.
  • the middle of the pressing block is exposed to ensure that the optical fiber is fully squeezed to ensure a good connection of the optical fiber.
  • Figure 1 is a schematic diagram of the pre-embedded optical fiber in the ferrule body of the processed optical fiber rapid end assembly
  • Figure 2 is a schematic diagram of the crimping block on the ferrule body platform locking and crimping the fiber after the fiber is butted;
  • Fig. 3 is an enlarged schematic diagram of part A in Fig. 2.
  • the first ferrule body 2. The second ferrule body; 3. Connecting piece; 4. Fixing piece; 5. Optical fiber docking point; 6, Clamping block, 7, Docking optical fiber; 8. Docking platform; 9. Pre-embedded Optical fiber; 10. Optical fiber lead-in hole.
  • FIG. 1 to 3 it is a high-performance optical fiber fast-finishing assembly in the present invention, which includes a first ferrule body 1 and a second ferrule body 2 connected into one body by a connector 3.
  • the ferrule body 1 and the second ferrule body 2 are provided with inner holes, and a notch is provided in the middle of the second ferrule body 2 to expose the inner hole, and the notch is formed for pre-embedding the optical fiber 9 and butting the optical fiber 7.
  • the docking platform 8 is provided with a pressing device for pressing the pre-embedded optical fiber 9 and the optical fiber docking point 5 of the butted optical fiber 7 at the docking platform 8.
  • the pressing device includes a pressing block 6 arranged at the docking platform and a fixing member 4 arranged on the pressing block to fix the pressing block.
  • the pressing block 6 is pressed against the optical fiber butting point 5, and the middle part is exposed for Ensure that the butted optical fiber on the docking platform 8 is fully compressed and accurately docked, so as to avoid the problem of insufficient fiber compression caused by the lower plane of the pressing block 6 or the uneven docking platform 8.
  • the fixing member 4 can be realized by a tight hoop.
  • the first ferrule body 1 and the second ferrule body 2 can be made of ordinary ceramic ferrules, which can be made into blanks by extrusion or injection molding and then polished and processed by a precision grinder. , You can also use grinder cutter or corrosion process to complete the shape modification.
  • the access ends of the first ferrule body 1 and the second ferrule body 2 are both provided with optical fiber introduction holes 10, and the optical fibers 9 are pre-embedded at the inner hole access ends of the first ferrule body 1 and the second ferrule body 2.
  • One end of the embedded optical fiber 9 and the corresponding end surface of the first ferrule body 1 are ground and polished into an end that matches with a conventional connector for mating with the conventional connector.
  • the docking optical fiber 7 enters the docking platform 8 and the pre-embedded optical fiber 9 through the fiber introduction hole 10 of the second ferrule body 7 for docking. Under the action of the fixing member 4, the pressing block 6 and the docking platform 8 of the second ferrule body 2 are closed. In addition, the pressure block 6 is limited by the two ends of the second ferrule body 2, and the butted optical fiber 7 and the embedded optical fiber 9 are coaxially butted in the inner hole of the docking platform 8.

Abstract

一种高性能光纤快速成端组件，包括通过连接件（3）连接成一体的第一插芯体（1）和第二插芯体（2），第一插芯体（1）和第二插芯体（2）内设有内孔，在第二插芯体（2）中部位置设有使内孔外露的缺口，在缺口处形成用于预埋光纤（9）和对接光纤（7）实现对接的对接平台（8），在对接平台（8）处设有用于压紧预埋光纤（9）和对接光纤（8）的光纤对接点（5）的压紧装置。第一插芯体（1）和第二插芯体（2）采用普通的陶瓷插芯体即可实现，其通过第一插芯体（1）和第二插芯体（2）的结合替代了需要特殊制作的陶瓷插芯体，其不但能够保证所述高性能光纤快速成端组件具备好的光学性能和高的可靠性，而且还能降低制作成本，提高高性能光纤快速成端组件的通用性能。

Description

一种高性能光纤快速成端组件
技术领域
本实用新型属于光纤成端技术，具体涉及一种高性能光纤快速成端组件。
背景技术
目前，随着光纤通信技术的飞速发展，PON接入技术已成为全球FTTH（光纤到户）最主要的解决方案。然而，在这最后的一公里接入安装，传统的光纤熔接技术，由于其成本高、安装时受场地的限制，安装人员需要专业培训等原因而无法得到大面积的推广。新兴的光纤快速成端组件以其安装方便、快速、高效等优势，已成为目前FTTH接入的最优选择方案。
在现有的快速成端组件中常见的有直通式（也称直插式或干式）和预埋式。直通式快速成端组件由于现有技术的限制，性能指标不够稳定，不能达到规定要求，无法满足光纤到户的连接需求。一般的预埋式快速成端组件，一种预埋方式是在陶瓷插芯内孔中预埋一根光纤，光纤的一端与陶瓷插芯经研磨抛光后形成与正常连接器对接的端头，另一端则露出一定长度并保证端面平整，然后将露出端光纤安装在一个V型槽中，V型槽配备相应的光纤压贴块用来固定外入光纤和预埋光纤的对接，对接时在V型槽中提前预置匹配凝胶，同时还附带光缆锁紧装置。在现场施工时，将光纤切割后通过V型槽和预埋光纤对接实现快速连接。这种预埋快速成端组件中预埋光纤一端外露在插芯外，整个工艺流程中容易折断，造成产品的报废，而且V型槽的制作困难，批量生产时精度不高，对接光纤无法实现同轴对接导致插损偏大，此外其现场组装一次成功率低，约10%需进行二次装配。另一种预埋式快速成端组件，如中国专利申请'申请号为201110345399.3，主题为一种高性能光纤快速成端组件'记载的，其预埋光纤与对接光纤在对接平台的内孔中实现对接，其利用陶瓷插芯的高精度内孔对接取代现有的塑料V型槽，使预埋光纤受到插芯体内孔的保护，这种技术方案具备好的光学性能和高的可靠性，但是这种预埋式快速成端组件中的陶瓷插芯需要特殊制作，成本高，通用性不强。
实用新型内容
本实用新型解决的技术问题是克服现有技术的不足，提供一种成本低，通用性强的高性能光纤快速成端组件。本实用新型安装简单，能够实现预埋光纤和接入光纤的高效快速对接。
为解决上述技术问题，本实用新型的技术方案如下：
一种高性能光纤快速成端组件，其包括通过连接件连接成一体的第一插芯体和第二插芯体，第一插芯体和第二插芯体内设有内孔，在第二插芯体中部位置设有使内孔外露的缺口，在缺口处形成用于预埋光纤和对接光纤实现对接的对接平台，在对接平台处设有用于压紧预埋光纤和对接光纤的光纤对接点的压紧装置。本实用新型中的第一插芯体和第二插芯体采用普通的陶瓷插芯体即可实现，其通过第一插芯体和第二插芯体的结合代替了需要特殊制作的陶瓷插芯体，大大降低了制作成本，而且本方案具备好的光学性能和高的可靠性；此外，对接平台位于第二插芯体的中部位置，使压紧装置置于其中并利用第二插芯体的两端实现限位，第一插芯体和第二插芯体之间通过连接件进行连接，既能够防止压紧装置移位，还能够保证预埋光纤对接完成后不外露。
优选地，所述压紧装置包括设置在对接平台处的压块和设置在压块上对压块进行固定的固定件。
优选地，所述压块中间露空，用于确保对接平台上对接的光纤充分压紧及准确对接，避免压块的下平面或对接平台不平造成的光纤压不紧问题。
优选地，所述固定件为紧箍套。
优选地，第一插芯体和第二插芯体的接入端均设有光纤导入孔。具体地，光纤导入孔可以设置为V型导入孔，其方便于对接光纤穿入对接平台的内孔,同时保护光纤端面不受撞击而损伤。
优选地，第一插芯体端面和预埋光纤中与该端面对应的一端研磨抛光成与常规连接器配合的端头。
优选地，所述连接件为套环。
优选地，预埋光纤对接端面预置有光纤匹配凝胶。
与现有技术相比，本 实用新型技术方案的有益效果是：
一、本实用新型中的第一插芯体和第二插芯体采用普通的陶瓷插芯体即可实现，其通过第一插芯体和第二插芯体的结合代替了需要特殊制作的陶瓷插芯体，其不但能够保证本实用新型具备好的光学性能和高的可靠性，而且还能够大大降低了制作成本，提高本实用新型的通用性能 。
二、本实用新型的预埋光纤与对接光纤在对接平台的内孔中实现对接，避免预埋光纤外露而造成易折断的缺陷 。
三、对接平台位于第二插芯体的中部位置，使压紧装置置于其中并利用第二插芯体的两端实现限位，第一插芯体和第二插芯体之间通过连接件进行连接，既能够防止压紧装置移位，又能够防止预埋光纤对接完成后外露。
四、压块中间露空，确保充分压挤光纤，保证了光纤的良好对接。
五、在预埋光纤接入端端面预置足够的匹配凝胶，多次对接或长时间服役后还可以补充匹配凝胶。
附图说明
图1是经过加工的光纤快速成端组件的插芯体预埋光纤示意图；
图2是光纤对接后压块在插芯体平台上锁压对接光纤示意图；
图3 是图2中A部分的放大示意图。
1、第一插芯体2、第二插芯体；3、连接件；4、固定件；5、光纤对接点；6、压块、7、对接光纤；8、对接平台；9、预埋光纤；10、光纤导入孔。
具体实施方式
下面结合附图和实施例对本 实用新型 的技术方案做进一步的说明。
如图1至3所示，为本实用新型中的一种高性能光纤快速成端组件，其包括通过连接件3连接成一体的第一插芯体1和第二插芯体2，第一插芯体1和第二插芯体2内设有内孔，在第二插芯体2中部位置设有使内孔外露的缺口，在缺口处形成用于预埋光纤9和对接光纤7实现对接的对接平台8，在对接平台8处设有用于压紧预埋光纤9和对接光纤7的光纤对接点5的压紧装置。其中压紧装置包括设置在对接平台处的压块6和设置在压块上对压块进行固定的固定件4，其中压块6抵压在光纤对接点5中，其中部露空，用于确保对接平台8上对接的光纤充分压紧及准确对接，避免压块6的下平面或对接平台8不平造成的光纤压不紧问题。固定件4可以采用紧箍套实现。
第一插芯体1和第二插芯体2采用普通的陶瓷插芯体即可，其可以由挤出或注射成型工艺制成坯体后经过打磨抛光并通过精密磨床进行修磨加工而成，也可以利用磨床切刀或腐蚀工艺等完成形状修改。
第一插芯体1和第二插芯体2的接入端均设有光纤导入孔10，在第一插芯体1和第二插芯体2的内孔接入端预埋光纤9，预埋光纤9一端和对应的第一插芯体1端面研磨抛光成与常规连接器配合的端头，用于与常规连接器对接，预埋光纤9另一端预埋之前确保端面平整清洁，并将对接端面定位在对接平台8中，且在对接端面预置有光纤匹配凝胶。对接光纤7通过第二插芯体7的光纤导入孔10进入对接平台8和预埋光纤9进行对接，在固定件4的作用下压块6和第二插芯体2的对接平台8闭合，且压块6通过第二插芯体2两端实现限位，对接光纤7与预埋光纤9在对接平台8的内孔中实现同轴对接。

Claims (8)

  1. 一种高性能光纤快速成端组件，其特征在于，包括通过连接件连接成一体的第一插芯体和第二插芯体，第一插芯体和第二插芯体内设有内孔，在第二插芯体中部位置设有使内孔外露的缺口，在缺口处形成用于预埋光纤和对接光纤实现对接的对接平台，在对接平台处设有用于压紧预埋光纤和对接光纤的光纤对接点的压紧装置。
  2. 根据权利要求1所述的高性能光纤快速成端组件，其特征在于，所述压紧装置包括设置在对接平台处的压块和设置在压块上对压块进行固定的固定件。
  3. 根据权利要求2所述的高性能光纤快速成端组件，其特征在于，所述固定件为紧箍套。
  4. 根据权利要求2所述的高性能光纤快速成端组件，其特征在于，所述压块中间露空。
  5. 根据权利要求1所述的高性能光纤快速成端组件，其特征在于，第一插芯体和第二插芯体的接入端均设有光纤导入孔。
  6. 根据权利要求1所述的高性能光纤快速成端组件，其特征在于，第一插芯体端面和预埋光纤中与该端面对应的一端研磨抛光成与常规连接器配合的端头。
  7. 根据权利要求1所述的高性能光纤快速成端组件，其特征在于，所述连接件为套环。
  8. 根据权利要求1所述的高性能光纤快速成端组件，其特征在于，预埋光纤对接端面预置有光纤匹配凝胶。
PCT/CN2012/079931 2012-07-26 2012-08-10 一种高性能光纤快速成端组件 WO2014015542A1 (zh)

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EP12813249.5A EP2713192A4 (en) 2012-07-26 2012-08-10 HIGH-PERFORMANCE FIBER OPTIC QUICK-CONNECTING COMPONENT
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JP3198724U (ja) 2015-07-23

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