CN209117916U - A high-precision dual APC ferrule adapter - Google Patents
A high-precision dual APC ferrule adapter Download PDFInfo
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- CN209117916U CN209117916U CN201821982542.3U CN201821982542U CN209117916U CN 209117916 U CN209117916 U CN 209117916U CN 201821982542 U CN201821982542 U CN 201821982542U CN 209117916 U CN209117916 U CN 209117916U
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- 230000009977 dual effect Effects 0.000 title abstract description 8
- 238000003780 insertion Methods 0.000 claims abstract description 24
- 230000037431 insertion Effects 0.000 claims abstract description 24
- 239000000835 fiber Substances 0.000 claims abstract description 8
- 239000000919 ceramic Substances 0.000 claims description 17
- 239000013307 optical fiber Substances 0.000 abstract description 11
- 238000000034 method Methods 0.000 abstract description 9
- 238000004891 communication Methods 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000003466 welding Methods 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 3
- 239000003292 glue Substances 0.000 abstract description 2
- 210000001503 joint Anatomy 0.000 abstract 1
- 230000008878 coupling Effects 0.000 description 6
- 238000010168 coupling process Methods 0.000 description 6
- 238000005859 coupling reaction Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 2
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Abstract
Description
技术领域technical field
本实用新型涉及光纤通信技术领域,特别涉及一种高精度双APC插芯适配器。The utility model relates to the technical field of optical fiber communication, in particular to a high-precision double APC ferrule adapter.
背景技术Background technique
光纤通信是以光为载波,通过光电转换,用光来传递信息的通信系统,激光器和光纤插芯适配器是光纤通信系统的重要组成部分。激光器封装技术要求较高,光芯片工作发出来的光传输至光纤插芯适配器耦合端,在经过光纤适配器传输至对接端适配器插芯时,两个插芯端面都会产生菲涅尔反射现象,反射光将直接影响光器件的正常工作,降低产品质量。但是光纤插芯适配器作为传输连接器,也要求具有低插入损耗,否则会直接影响光纤通信系统的质量。Optical fiber communication is a communication system that transmits information with light through photoelectric conversion. Lasers and optical fiber ferrule adapters are important components of optical fiber communication systems. The laser packaging technology has high requirements. The light emitted by the optical chip is transmitted to the coupling end of the optical fiber ferrule adapter. When it is transmitted to the butt-end adapter ferrule through the optical fiber adapter, the Fresnel reflection phenomenon will occur on the end faces of the two ferrules. Light will directly affect the normal operation of optical devices and reduce product quality. However, as a transmission connector, the optical fiber ferrule adapter also requires low insertion loss, otherwise it will directly affect the quality of the optical fiber communication system.
目前,通常用于减少菲涅尔反射现象的方法是在光纤插芯适配器耦合端和对接端适配器插芯都设计为斜8度角斜面,如此,激光器光芯片工作发出的光传输至光纤插芯适配器时,产生的反射光不会垂直反射回去,实现激光器的正常工作。但是斜面的设计不容易装配,适配器厂商一般采用焊接或者点胶的方式实现光纤插芯适配器和对接端适配器插芯的组装固定。组装过程中,先将插芯压在定位插芯座,通过插芯座扁位研磨插芯两端斜8度角,然后将组装好的插芯定位座组装在适配器下套,最后,通过焊接或者点胶工艺直接实现产品组装固定。但是焊接的加工成本较高,不利于大批量生产;适配器组装好后,内部空间紧凑,对胶水的流动性、胶量要求较高,工艺精度难以保证,使得点胶工艺的产品可靠性风险较高。At present, the commonly used method to reduce the Fresnel reflection phenomenon is to design both the coupling end and the butt end of the fiber ferrule adapter to be inclined at an angle of 8 degrees. In this way, the light emitted by the laser optical chip is transmitted to the fiber ferrule. When the adapter is used, the reflected light generated will not be reflected back vertically, and the normal operation of the laser can be realized. However, the design of the inclined plane is not easy to assemble. Adapter manufacturers generally use welding or dispensing to realize the assembly and fixation of the optical fiber ferrule adapter and the butt end adapter ferrule. During the assembly process, first press the ferrule on the positioning ferrule seat, grind the ferrule at both ends at an angle of 8 degrees through the ferrule seat flat, then assemble the assembled ferrule positioning seat on the lower sleeve of the adapter, and finally, by welding Or the dispensing process can directly achieve product assembly and fixation. However, the processing cost of welding is high, which is not conducive to mass production; after the adapter is assembled, the internal space is compact, the fluidity and quantity of glue are required to be high, and the process accuracy is difficult to guarantee, which makes the product reliability risk of the dispensing process relatively high. high.
实用新型内容Utility model content
本实用新型的目的在于,避免上述现有技术中的不足之处而提供一种生产简便、成本较低的高精度双APC插芯适配器。The purpose of the utility model is to avoid the above-mentioned deficiencies in the prior art and provide a high-precision dual APC ferrule adapter with simple production and low cost.
为实现上述目的,提供一种高精度双APC插芯适配器,包括同轴的插芯适配器外壳、插芯、套筒和插芯定位座,所述插芯的两个端面都是与插芯轴线的垂直线形成一个夹角的斜面,插芯适配器外壳套在套筒外侧且与其过盈配合,插芯适配器外壳用于安装插芯的一端的内径大于套筒外径,套筒内径与插芯外径相匹配,插芯定位座包括用于裹住所述插芯外围一段且与其过盈配合的夹持端和内径与套筒外径相匹配的插入端,所述插芯插入套筒内则所述插芯定位座的插入端卡在插芯适配器外壳内部和套筒外部之间,所述插芯和所述套筒过盈配合。In order to achieve the above purpose, a high-precision double APC ferrule adapter is provided, which includes a coaxial ferrule adapter shell, a ferrule, a sleeve and a ferrule positioning seat, and the two end faces of the ferrule are aligned with the ferrule axis. The vertical line of the ferrule forms an inclined plane with an included angle. The ferrule adapter shell is sleeved on the outside of the sleeve and has an interference fit with it. The inner diameter of one end of the ferrule adapter shell used to install the ferrule is larger than the outer diameter of the sleeve, and the inner diameter of the sleeve is the same as the ferrule. The outer diameter matches, and the ferrule positioning seat includes a clamping end for wrapping a section of the outer periphery of the ferrule and for interference fit with it, and an insertion end whose inner diameter matches the outer diameter of the sleeve. The insertion end of the ferrule positioning seat is clamped between the inside of the ferrule adapter shell and the outside of the sleeve, and the ferrule and the sleeve are in an interference fit.
其中,所述插芯定位座的夹持端的两个相对的外侧面是相互平行的平面。Wherein, the two opposite outer sides of the clamping end of the ferrule positioning seat are planes parallel to each other.
其中,所述插芯的端面的斜面自夹持端的一个平面向与其相对的另一个平面倾斜。Wherein, the inclined plane of the end face of the ferrule is inclined from one plane of the clamping end to another plane opposite to it.
其中,插芯定位座内部的夹持端和插入端之间设有环状台阶,所述插芯定位座的插入端卡在插芯适配器外壳内部和套筒外部之间,则该环状台阶的端面抵住套筒端面。Wherein, an annular step is provided between the clamping end and the insertion end inside the ferrule positioning seat, and the insertion end of the ferrule positioning seat is clamped between the inside of the ferrule adapter shell and the outside of the sleeve, then the annular step The end face of the sleeve is against the end face of the sleeve.
其中,插芯适配器外壳内部与套筒外侧过盈配合的一段和大于套筒外径的一段的连接处形成环面,所述插芯定位座的插入端抵住该环面。Wherein, an annular surface is formed at the connection between the inner part of the ferrule adapter shell and the outer side of the sleeve with interference fit and the part larger than the outer diameter of the sleeve, and the insertion end of the ferrule positioning seat abuts the annular surface.
其中,所述环面与所述插芯定位座的插入端的接触面设为弧面。Wherein, the contact surface between the annular surface and the insertion end of the ferrule positioning seat is set as an arc surface.
其中,所述插芯的两个端面是露出在适配器外壳外的耦合端和插入套筒内的对接端,耦合端和对接端的倾斜角度和方向都相同。Wherein, the two end faces of the ferrule are the coupling end exposed outside the adapter shell and the butt end inserted into the sleeve, and the inclination angle and direction of the coupling end and the butt end are the same.
其中,所述夹角的角度为5~13度。Wherein, the angle of the included angle is 5-13 degrees.
其中,所述套筒是陶瓷套筒。Wherein, the sleeve is a ceramic sleeve.
其中,包括设置在插芯的轴心的纤芯。Among them, the fiber core arranged on the axis of the ferrule is included.
有益效果:该高精度双APC插芯适配器,插芯的两个端面都是与插芯轴线的垂直线形成一个夹角的斜面,降低了菲涅尔反射现象对插入损耗的影响,并且通过插芯定位座来连接插芯适配器外壳、插芯和套筒,通过控制这些部件之间的尺寸配合形成紧配结构,不需要采用焊接或者点胶的方式实现光纤插芯适配器和对接端适配器插芯的组装固定,易于控制工艺精度,且降低了生产成本,实现了产品质量与成本的双重优化。Beneficial effect: In the high-precision double APC ferrule adapter, the two end faces of the ferrule are inclined planes that form an angle with the vertical line of the ferrule axis, which reduces the influence of the Fresnel reflection phenomenon on the insertion loss. The core positioning seat is used to connect the ferrule adapter shell, ferrule and sleeve, and form a tight fitting structure by controlling the size matching between these components, without welding or dispensing to realize the fiber optic ferrule adapter and the butt end adapter ferrule The assembly is fixed, the process accuracy is easy to control, the production cost is reduced, and the double optimization of product quality and cost is realized.
附图说明Description of drawings
图1是该高精度双APC插芯适配器的外部结构示意图。Figure 1 is a schematic diagram of the external structure of the high-precision dual APC ferrule adapter.
图2是该高精度双APC插芯适配器的拆解结构示意图。FIG. 2 is a schematic diagram of the disassembled structure of the high-precision dual APC ferrule adapter.
图3是该高精度双APC插芯适配器的配合结构示意图。FIG. 3 is a schematic diagram of the matching structure of the high-precision dual APC ferrule adapter.
图4是该高精度双APC插芯适配器的端面结构示意图。FIG. 4 is a schematic diagram of the end face structure of the high-precision double APC ferrule adapter.
具体实施方式Detailed ways
该高精度双APC插芯适配器如图1~3所示,包括同轴设置的插芯适配器外壳1、插芯2、套筒3和插芯定位座4,纤芯设置在插芯2的轴心。插芯2的两个端面是露出在适配器外壳外的耦合端和插入陶瓷套筒3内的对接端,耦合端和对接端都是与插芯2轴线的垂直线形成一个8度的夹角(该夹角的角度在5~13度之间)的斜面,且两者的倾斜角度α、β以及方向都相同,降低了菲涅尔反射现象对插入损耗的影响。The high-precision dual APC ferrule adapter is shown in Figures 1 to 3. It includes a ferrule adapter shell 1, a ferrule 2, a sleeve 3 and a ferrule positioning seat 4 that are coaxially arranged. The fiber core is arranged on the axis of the ferrule 2. Heart. The two end faces of the ferrule 2 are the coupling end exposed outside the adapter shell and the butt end inserted into the ceramic sleeve 3. Both the coupling end and the butt end form an included angle of 8 degrees with the vertical line of the axis of the ferrule 2 ( The angle of the included angle is between 5 and 13 degrees), and the inclination angles α, β and directions of the two are the same, which reduces the influence of the Fresnel reflection phenomenon on the insertion loss.
插芯适配器外壳1套在陶瓷套筒3外侧且与其过盈配合,插芯适配器外壳1用于安装插芯2的一端的内径大于陶瓷套筒3外径,陶瓷套筒3内径与插芯2外径相匹配,插芯定位座4包括用于裹住插芯2外围一段且与其过盈配合的夹持端和内径与陶瓷套筒3外径相匹配的插入端,插芯2插入陶瓷套筒3内则插芯定位座4的插入端卡在插芯适配器外壳1内部和陶瓷套筒3外部之间,插芯2和陶瓷套筒3过盈配合。通过插芯定位座4来连接插芯适配器外壳1、插芯2和陶瓷套筒3,通过控制这些部件之间的尺寸配合形成紧配结构,不需要采用焊接或者点胶的方式实现光纤插芯适配器和对接端适配器插芯2的组装固定,易于控制工艺精度,且降低了生产成本,实现了产品质量与成本的双重优化。The ferrule adapter shell 1 is sleeved on the outside of the ceramic sleeve 3 and has an interference fit with it. The inner diameter of one end of the ferrule adapter shell 1 used to install the ferrule 2 is larger than the outer diameter of the ceramic sleeve 3, and the inner diameter of the ceramic sleeve 3 is the same as that of the ferrule 2. The outer diameter is matched, and the ferrule positioning seat 4 includes a clamping end for wrapping the periphery of the ferrule 2 and interference fit with it, and an insertion end whose inner diameter matches the outer diameter of the ceramic sleeve 3, and the ferrule 2 is inserted into the ceramic sleeve. Inside the barrel 3, the insertion end of the ferrule positioning seat 4 is clamped between the inside of the ferrule adapter shell 1 and the outside of the ceramic sleeve 3, and the ferrule 2 and the ceramic sleeve 3 are in an interference fit. The ferrule adapter shell 1, the ferrule 2 and the ceramic sleeve 3 are connected through the ferrule positioning seat 4, and a tight fitting structure is formed by controlling the size matching between these components, and the fiber ferrule does not need to be welded or dispensed. The adapter and the butt-end adapter ferrule 2 are assembled and fixed, which is easy to control the process precision, reduces the production cost, and realizes the double optimization of product quality and cost.
具体的,插芯定位座4的夹持端的两个相对的外侧面是如图4所示的相互平行的平面形成的用于夹持的扁位41,插芯2的端面的斜面自夹持端的上面的扁位41向与其相对的下面的扁位41倾斜。插芯定位座4的扁位41与该插芯适配器中插芯端面的角度相对应,在使用插芯适配器时,只需要观察扁位41的方向和角度就可以确定插芯端面的方向和角度,保障光器件产品使用时的插拔动作不易出错,具有高重复性。Specifically, the two opposite outer sides of the clamping end of the ferrule positioning seat 4 are flat positions 41 formed by mutually parallel planes as shown in FIG. The upper flat 41 of the end slopes toward the lower flat 41 opposite it. The flat position 41 of the ferrule positioning seat 4 corresponds to the angle of the ferrule end face in the ferrule adapter. When using the ferrule adapter, the direction and angle of the ferrule end face can be determined only by observing the direction and angle of the flat position 41 , to ensure that the plugging action of the optical device product is not easy to make mistakes and has high repeatability.
其中,插芯定位座4内部的夹持端和插入端之间设有环状台阶,插芯定位座4的插入端卡在插芯适配器外壳1内部和陶瓷套筒3外部之间,则该环状台阶的端面抵住陶瓷套筒3端面。There is an annular step between the clamping end and the insertion end inside the ferrule positioning seat 4, and the insertion end of the ferrule positioning seat 4 is clamped between the inside of the ferrule adapter shell 1 and the outside of the ceramic sleeve 3, then the The end face of the annular step abuts the end face of the ceramic sleeve 3 .
其中,插芯适配器外壳1内部与陶瓷套筒3外侧过盈配合的一段和大于陶瓷套筒3外径的一段的连接处形成环面11,插芯定位座4的插入端抵住该环面11。具体的,环面11与插芯定位座4的插入端的接触面设为弧面。A ring surface 11 is formed at the connection between the inner part of the ferrule adapter shell 1 and the outer side of the ceramic sleeve 3 with interference fit and the part larger than the outer diameter of the ceramic sleeve 3, and the insertion end of the ferrule positioning seat 4 abuts the ring surface 11. Specifically, the contact surface between the annular surface 11 and the insertion end of the ferrule positioning seat 4 is set as an arc surface.
该高精度双APC插芯适配器的生产过程如下:The production process of this high-precision dual APC ferrule adapter is as follows:
(1)加工插芯定位座的两处扁位,两者中心对称;(1) The two flat positions of the ferrule positioning seat are processed, and the centers of the two are symmetrical;
(2)使用气动压配机台,将插芯2压进插芯定位座4,完成插芯2与插芯定位座4的组装;(2) Using a pneumatic press-fitting machine, press the ferrule 2 into the ferrule positioning seat 4 to complete the assembly of the ferrule 2 and the ferrule positioning seat 4;
(3)使用光纤研磨夹具夹紧插芯定位座4的两个扁位41,然后研磨插芯2的两个端面使其成斜8度角,保证插芯定位座4扁位41与插芯2两端斜8度角的高度一致性;(3) Use the optical fiber grinding jig to clamp the two flat positions 41 of the ferrule positioning seat 4, and then grind the two end faces of the ferrule 2 to make them at an angle of 8 degrees to ensure that the flat positions 41 of the ferrule positioning seat 4 and the ferrule 2 The height consistency of the inclined 8-degree angle at both ends;
(4)将陶瓷套筒3套入插芯适配器外壳1,完成插芯适配器外壳1与陶瓷套筒3的组装;(4) Insert the ceramic sleeve 3 into the ferrule adapter shell 1 to complete the assembly of the ferrule adapter shell 1 and the ceramic sleeve 3;
(5)使用气动压配机台,将研磨好角度的插芯2,通过插芯定位座4扁位和插芯适配器外壳1扁位,压进插芯适配器外壳1,完成双APC插芯适配器的组装。(5) Using a pneumatic press-fitting machine, press the ferrule 2 with a good angle through the ferrule positioning seat 4 flat and the ferrule adapter shell 1 flat, and press it into the ferrule adapter shell 1 to complete the double APC ferrule adapter assembly.
Claims (10)
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Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
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CN112077705A (en) * | 2020-09-18 | 2020-12-15 | 汇聚科技(惠州)有限公司 | APC grinding process and structure of mini type MT ferrule |
CN112658980A (en) * | 2020-12-17 | 2021-04-16 | 广昌县中广创新电子科技有限公司 | double-APC core insert grinding disc of optical fiber adapter |
CN113156587A (en) * | 2021-04-23 | 2021-07-23 | 茂名市欧格斯通讯科技有限公司 | Optical fiber adapter and positioning adjustment device |
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2018
- 2018-11-28 CN CN201821982542.3U patent/CN209117916U/en active Active
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112077705A (en) * | 2020-09-18 | 2020-12-15 | 汇聚科技(惠州)有限公司 | APC grinding process and structure of mini type MT ferrule |
CN112077705B (en) * | 2020-09-18 | 2022-04-12 | 汇聚科技(惠州)有限公司 | APC grinding process and structure of mini type MT ferrule |
CN112658980A (en) * | 2020-12-17 | 2021-04-16 | 广昌县中广创新电子科技有限公司 | double-APC core insert grinding disc of optical fiber adapter |
CN113156587A (en) * | 2021-04-23 | 2021-07-23 | 茂名市欧格斯通讯科技有限公司 | Optical fiber adapter and positioning adjustment device |
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