CN210465758U - Optical fiber connector, optical transmitter optical subassembly and optical module - Google Patents
Optical fiber connector, optical transmitter optical subassembly and optical module Download PDFInfo
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- CN210465758U CN210465758U CN201921212669.1U CN201921212669U CN210465758U CN 210465758 U CN210465758 U CN 210465758U CN 201921212669 U CN201921212669 U CN 201921212669U CN 210465758 U CN210465758 U CN 210465758U
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Abstract
The utility model discloses an optical fiber connector, including first shell, second shell, pottery lock pin and lock pin sleeve, first shell adopts the insulating plastic material, the embedding of second shell part in the first shell and with first shell is connected, lock pin sleeve both ends respectively embedded in first shell with the second shell, pottery lock pin embedded in second shell and partial embedding in the lock pin sleeve. The first shell is made of insulating plastic materials and can be directly contacted with the second shell, and electro-optic isolation is realized without additional insulating parts; in addition, the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule is improved, the transmission quality of the optical fiber is favorably ensured, and the reduction of the parts is also favorable for improving the efficiency during production. The utility model also discloses a light emission submodule and an optical module.
Description
Technical Field
The utility model relates to an optical communication technical field, in particular to fiber connector, a light emission submodule and an optical module.
Background
The optical module is an important component in an optical communication system, and has the function of simply realizing photoelectric conversion. In the process of long-distance signal transmission, when an electric signal is transmitted to a transmitting end of an optical module, the electric signal is converted into an optical signal, and the optical signal is transmitted to the optical module at the opposite end through an optical fiber; after receiving optical signals of other optical modules through optical fibers, the receiving end of the optical module converts the optical signals into electric signals, so that the long-distance transmission of the signals can be realized.
The Optical module is mainly composed of an Optical Subassembly (OSA) and a functional circuit (i.e., a circuit board assembly). The optical secondary module is electrically connected with the circuit board assembly, the circuit board assembly is connected with an external upper computer to realize power supply and electric signal transmission, and the optical secondary module is connected with light transmission media such as external optical fibers to realize light transmission. The Optical Subassembly mainly includes a Transmitter Optical Subassembly (TOSA), a Receiver Optical Subassembly (TOSA), and a Bi-directional Optical Subassembly (BOSA).
The tosa is a module that converts an electrical signal into an optical signal for transmission, and includes a laser as a light source and a fiber connector for coupling light out to an external optical fiber. In order to realize the optoelectronic isolation on both sides of the tosa, the conventional tosa structure is shown in fig. 1-1 and 1-2. Fig. 1-1 is a schematic structural diagram of an optical fiber connector of an SFP type tosa, which includes an adapter 1 (sometimes also called a front clamping cylinder), a ferrule 3, a ferrule base 2, and a ferrule sleeve 5 (in the prior art, a ferrule sleeve is generally a ceramic sleeve, and is configured as a C-type), where the adapter 1 and the ferrule base 2 are both metal pieces, and in order to achieve isolation between the adapter 1 and the ferrule base 2, the optical fiber connector is provided with an O-type insulating ring 4 and an insulating rubber ring 6. During production and manufacturing, the ferrule sleeve 5 is firstly placed in the ferrule base 2, the ceramic ferrule 3 is pressed into the ferrule base 2 and the ferrule sleeve 5, the O-shaped insulating ring 4 is sleeved on the ferrule base 2, the adapter 1 is sleeved on the O-shaped insulating ring 4, and finally the insulating glue 6 is coated between the ferrule base 2 and the adapter 1.
Fig. 1-2 are schematic structural diagrams of an optical fiber connector of an XMD type tosa, which includes an adapter 1, a ferrule 3, a ferrule base 2, a ferrule sleeve 5, and a connecting tube 6 for accommodating a laser, wherein the adapter 1, the ferrule base 2, and the connecting tube 6 are metal members, and an insulating rubber ring 4 is disposed between the optical fiber connector and the connecting tube 6 for realizing optoelectronic isolation. During production and manufacturing, the ceramic ferrule 3 is pressed into the ferrule base 2, then the ferrule sleeve 5 is sleeved on one end of the ceramic ferrule 3, the adapter 1 is sleeved on the ferrule sleeve 5 and embedded into the ferrule base 2, and then the insulating rubber ring 4 and the connecting pipe 6 are sequentially sleeved on the other end of the ceramic ferrule 3.
The optical fiber connectors are more in component parts, and due to the fact that the parts have coaxiality tolerance during machining, the more the parts are, the larger the accumulated coaxiality tolerance is, the more the parts are, the greater the coupling efficiency of light can be greatly influenced, and the transmission quality of the optical fiber is reduced. In addition, the more parts inevitably bring about complicated working procedures during installation, and the production efficiency is reduced.
SUMMERY OF THE UTILITY MODEL
The present invention has been made in view of the above problems, and aims to provide an optical fiber connector that overcomes or at least partially solves the above problems.
The utility model provides an optical fiber connector, includes first shell, second shell, pottery lock pin and lock pin sleeve, first shell adopts insulating plastics material, second shell part embedding in first shell and with first shell is connected, lock pin sleeve both ends respectively embedded in first shell with the second shell, pottery lock pin embedded in the second shell and partial embedding in the lock pin sleeve.
Further, the second shell is a ferrule base, and the first shell is an adapter.
Furthermore, the ferrule base is provided with an external thread, and the adapter is provided with an internal thread matched with the external thread.
Furthermore, a groove is formed in the insertion core base, and a protrusion matched with the groove is arranged on the adapter.
Further, the second shell is a connecting pipe, and the first shell is an integrated ferrule base type adapter.
Furthermore, the connecting pipe is provided with an external thread, and the integrated inserting core base type adapter is provided with an internal thread matched with the external thread.
Furthermore, a groove is formed in the connecting pipe, and a protrusion matched with the groove is arranged on the integrated inserting core base type adapter.
Further, the second shell is made of metal.
The utility model also discloses a light emission submodule including above-mentioned fiber connector.
The utility model also discloses an optical module of including above-mentioned transmitter optical subassembly.
Based on the technical scheme, the utility model discloses beneficial effect than prior art does:
the utility model discloses an optical fiber connector, which comprises a first shell, a second shell, a ceramic ferrule and a ferrule sleeve, wherein the first shell is made of insulating plastic and can be directly contacted with the second shell, and electro-optic isolation is realized without additional insulating parts; in addition, the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule is improved, the transmission quality of the optical fiber is favorably ensured, and the reduction of the parts is also favorable for improving the efficiency during production.
Drawings
FIG. 1-1 is a schematic diagram of a fiber connector of an SFP-type tosa in the prior art;
FIG. 1-2 is a schematic diagram of a fiber connector of an XMD tosa in the background art;
FIG. 2-1 is a schematic diagram of an optical fiber connector of an SFP-type tosa according to a first embodiment;
FIG. 2-2 is a schematic structural diagram of an optical fiber connector of an SFP-type tosa according to a second embodiment;
FIG. 3-1 is a schematic diagram of an optical fiber connector of an XMD tosa according to a third embodiment;
FIG. 3-2 is a schematic diagram of an optical fiber connector of an XMD tosa according to a fourth embodiment;
fig. 4 is a schematic structural diagram of an tosa according to a fifth embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In some embodiments, as shown in fig. 2-1, an optical fiber connector includes a first housing 10, a second housing 20, a ferrule 30, and a ferrule sleeve 40, wherein the first housing 10 is made of an insulating plastic material, the second housing 20 is partially embedded in the first housing 10 and connected to the first housing 10, the ferrule sleeve 40 is embedded in the first housing 10 and the second housing 20, respectively, and the ferrule 30 is embedded in the second housing 20 and partially embedded in the ferrule sleeve 40.
The first shell 10 is close to one side of an optical signal, the second shell 20 is close to one side of an electrical signal, the first shell 10 is made of insulating plastics, the second shell 20 is generally made of metal, the first shell 10 can be directly contacted with the second shell 20, photoelectric isolation of the first shell 10 and the second shell 20 is realized, and an insulating rubber ring for photoelectric isolation in the prior art is omitted; in addition, because the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule 30 is improved, the transmission quality of the optical fiber is favorably ensured, and the reduction of the parts is also favorable for improving the efficiency during production. The optical fiber connectors of the SFP-type and XMD-type tosas are specifically exemplified below.
Example one
The embodiment provides an optical fiber connector for an SFP type tosa. As shown in fig. 2-1, the optical fiber connector includes a first housing 10, a second housing 20, a ferrule sleeve 40, and a ferrule 30, wherein the first housing 10 is an adapter, the second housing 20 is a ferrule base, the adapter 10 is made of an insulating plastic material, the ferrule base 20 is made of a metal material, the ferrule base 20 is partially embedded in the adapter 10 and connected to the adapter 10, two ends of the ferrule sleeve 40 are respectively embedded in the adapter 10 and the ferrule base 20, and the ferrule 30 is embedded in the ferrule base 20 and partially embedded in the ferrule sleeve 40. The inserting core base 20 is provided with an external thread 201, the adapter 10 is provided with an internal thread 101 matched with the external thread 201, the inserting core base 20 is connected with the adapter 10 through threads, and the inserting core base 20 is screwed into the adapter 10 during manufacturing, so that the anti-disengaging effect can be achieved.
The utility model discloses an optical fiber connector, the adapter 10 adopts the insulating plastic material, can directly contact with the lock pin base 20, compared with the prior art, the O-shaped insulating ring and the insulating rubber ring are used less; in addition, as the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule 30 is improved, and the transmission quality of the optical fiber is improved; and parts are reduced, the process is less during installation, and the production efficiency is improved.
Example two
Compared with the first embodiment, the present embodiment proposes another optical fiber connector for SFP-type tosa. As shown in fig. 2-2, the optical fiber connector includes a first housing 10, a second housing 20, a ferrule sleeve 40, and a ferrule 30, wherein the first housing 10 is an adapter, the second housing 20 is a ferrule base, the adapter 10 is made of an insulating plastic material, the ferrule base 20 is made of a metal material, the ferrule base 20 is partially embedded in the adapter 10 and connected to the adapter 10, two ends of the ferrule sleeve 40 are respectively embedded in the adapter 10 and the ferrule base 20, and the ferrule 30 is embedded in the ferrule base 20 and partially embedded in the ferrule sleeve 40. The ferrule base 20 is provided with a groove 202, the adapter 10 is provided with a protrusion 102 matched with the groove 202, and during manufacturing, the protrusion 102 is clamped into the groove 202, so that the anti-disengaging effect can be achieved.
The utility model discloses an optical fiber connector, adapter 10 adopts the insulating plastics material, can directly contact with lock pin base 20, compares with prior art and has used an O type insulating ring and insulating rubber ring less; in addition, as the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule 30 is improved, and the transmission quality of the optical fiber is improved; after the number of parts is reduced, the installation process is less, and the production efficiency is improved.
EXAMPLE III
The embodiment provides an optical fiber connector for an XMD type tosa. As shown in fig. 3-1, the optical fiber connector includes a first housing 10, a second housing 20, a ferrule sleeve 40 and a ferrule 30, wherein the first housing 10 is an integrated ferrule base adapter, the second housing 20 is a connecting pipe, the integrated ferrule base adapter 10 is made of an insulating plastic material, the connecting pipe 20 is made of a metal material, the connecting pipe 20 is partially embedded in the integrated ferrule base adapter 10 and connected with the integrated ferrule base adapter 10, two ends of the ferrule sleeve 40 are respectively embedded in the integrated ferrule base adapter 10 and the connecting pipe 20, and the ferrule 30 is embedded in the connecting pipe 20 and partially embedded in the ferrule sleeve 40. The connecting pipe 20 is provided with an external thread 201, the integrated ferrule base type adapter 10 is provided with an internal thread 101 matched with the external thread 201, the connecting pipe 20 is connected with the integrated ferrule base type adapter 10 through threads, and the connecting pipe 20 is screwed into the integrated ferrule base type adapter 10 during manufacturing, so that the anti-disengagement effect can be achieved.
The utility model discloses an optical fiber connector, a ferrule base type adapter 10 is made of insulating plastic materials, and can be directly contacted with a connecting pipe 20, compared with the prior art, the optical fiber connector has less structures such as an O-shaped insulating ring and a ferrule base; in addition, as the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule 30 is improved, and the transmission quality of the optical fiber is improved; after the number of parts is reduced, the installation process is less, and the production efficiency is improved.
Example four
Compared with the embodiment, the embodiment provides another optical fiber connector for the XMD type tosa. As shown in fig. 3-2, the optical fiber connector includes a first housing 10, a second housing 20, a ferrule sleeve 40 and a ferrule 30, wherein the first housing 10 is an integrated ferrule base adapter, the second housing 20 is a connecting pipe, the integrated ferrule base adapter 10 is made of an insulating plastic material, the connecting pipe 20 is made of a metal material, the connecting pipe 20 is partially embedded in the integrated ferrule base adapter 10 and connected with the integrated ferrule base adapter 10, two ends of the ferrule sleeve 40 are respectively embedded in the integrated ferrule base adapter 10 and the connecting pipe 20, and the ferrule 30 is embedded in the connecting pipe 20 and partially embedded in the ferrule sleeve 40. The connecting pipe 20 is provided with a groove 202, the integrated ferrule base type adapter 10 is provided with a protrusion 102 matched with the groove 202, and during manufacturing, the protrusion 102 is clamped into the groove 202, so that the anti-disengaging function can be achieved.
The utility model discloses an optical fiber connector, a ferrule base type adapter 10 is made of insulating plastic materials, and can be directly contacted with a connecting pipe 20, compared with the prior art, the optical fiber connector has less structures such as an O-shaped insulating ring and a ferrule base; in addition, as the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule 30 is improved, and the transmission quality of the optical fiber is improved; two parts are reduced, the process is less during installation, and the production efficiency is improved.
EXAMPLE five
The present embodiment discloses an tosa, which is shown in fig. 3-1 and 4, and may include the fiber optic connector 1 according to the third or fourth embodiment, where the fiber optic connector includes a first housing 10, a second housing 20, a ferrule 30 and a ferrule sleeve 40, the first housing 10 is made of an insulating plastic material, the second housing 20 is partially embedded in the first housing 10 and connected to the first housing 10, the ferrule sleeve 40 is embedded in the first housing 10 and the second housing 20 at two ends, respectively, and the ferrule 30 is embedded in the second housing 20 and partially embedded in the ferrule sleeve 40. Of course, this optical emission secondary module still includes TO base 2, TO pipe cap 3, body 4 and go-between 5, and go-between 5 covers on the second shell and is connected with body 4, and T pipe cap 3 is fixed on TO base 2, and TO pipe cap 3 holds in body 4, and TO base 2 is connected with body 4.
In the tosa disclosed in this embodiment, the first housing of the fiber connector is made of an insulating plastic material and can be directly contacted with the second housing, so that the optoelectronic isolation between the first housing and the second housing is realized, and an insulating rubber ring for optoelectronic isolation in the prior art is omitted; in addition, the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule is improved, the transmission quality of the optical fiber is favorably ensured, and the reduction of the parts is also favorable for improving the efficiency during production.
It will be appreciated that some versions of the rosa may include the fiber optic connector 1 described in either embodiment one or two. The specific structure of the light receiving secondary module can be seen in the fifth embodiment, and details are not described again.
EXAMPLE six
The invention also discloses an optical module which can comprise the optical receiving sub-module in the fifth embodiment, and of course, the optical module also comprises an optical transmitting sub-module, a PCBA board (comprising a plurality of functional chips, circuits and the like), mechanical parts (such as a shell, an electrical interface golden finger, an optical fiber interface and the like) and the like.
In the optical module disclosed in this embodiment, the first housing of the optical fiber connector of the tosa is made of an insulating plastic material and can be directly contacted with the second housing, so that the optoelectronic isolation between the first housing and the second housing is realized, and an insulating rubber ring for optoelectronic isolation in the prior art is omitted; in addition, the number of parts of the optical fiber connector is reduced, the accumulated coaxiality tolerance of each part is reduced, the coaxiality of the optical fiber and the ceramic ferrule is improved, the transmission quality of the optical fiber is favorably ensured, and the reduction of the parts is also favorable for improving the efficiency during production.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An optical fiber connector, includes first shell, second shell, pottery lock pin and lock pin sleeve, its characterized in that: the first shell is made of insulating plastic, the second shell part is embedded into the first shell and connected with the first shell, two ends of the ferrule sleeve are embedded into the first shell and the second shell respectively, and the ceramic ferrule is embedded into the second shell and partially embedded into the ferrule sleeve.
2. The fiber optic connector of claim 1, wherein the second housing is a ferrule holder and the first housing is an adapter.
3. The fiber optic connector of claim 2, wherein the ferrule base has external threads thereon and the adapter has internal threads thereon that mate with the external threads.
4. The fiber optic connector of claim 2, wherein the ferrule holder defines a recess and the adapter defines a projection that mates with the recess.
5. The fiber optic connector of claim 1, wherein the second housing is a connecting tube and the first housing is an integrated ferrule base adapter.
6. The fiber optic connector of claim 5, wherein the connecting tube has external threads and the integrated ferrule base adapter has internal threads that mate with the external threads.
7. The fiber optic connector of claim 5, wherein the connecting tube has a groove formed therein, and wherein the integrated ferrule base adapter has a projection that mates with the groove.
8. The fiber optic connector of claim 1, wherein the second housing is a metal.
9. An tosa comprising the fiber optic connector of any one of claims 1-8.
10. A light module comprising the tosa of claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212669.1U CN210465758U (en) | 2019-07-30 | 2019-07-30 | Optical fiber connector, optical transmitter optical subassembly and optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921212669.1U CN210465758U (en) | 2019-07-30 | 2019-07-30 | Optical fiber connector, optical transmitter optical subassembly and optical module |
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| CN210465758U true CN210465758U (en) | 2020-05-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921212669.1U Active CN210465758U (en) | 2019-07-30 | 2019-07-30 | Optical fiber connector, optical transmitter optical subassembly and optical module |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708131A (en) * | 2020-06-22 | 2020-09-25 | 武汉光迅科技股份有限公司 | Light emitting module and optical module |
| CN111796368A (en) * | 2020-07-30 | 2020-10-20 | 埃尔发光电智能科技(常州)有限公司 | Optical fiber coupling system |
-
2019
- 2019-07-30 CN CN201921212669.1U patent/CN210465758U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111708131A (en) * | 2020-06-22 | 2020-09-25 | 武汉光迅科技股份有限公司 | Light emitting module and optical module |
| CN111796368A (en) * | 2020-07-30 | 2020-10-20 | 埃尔发光电智能科技(常州)有限公司 | Optical fiber coupling system |
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Address after: 430000 room 401-6, 4th floor, unit 2, building C2, Rongke Zhigu, No. 555, Wenhua Avenue, Hongshan District, Wuhan City, Hubei Province Patentee after: Wuhan Yusheng photoelectric Co.,Ltd. Address before: 430070 No.5, huashiyuan 3rd road, huashiyuan Science Park, Donghu Development Zone, Wuhan City, Hubei Province Patentee before: WUHAN YUSHENG OPTICAL DEVICES Co.,Ltd. |
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