CN212781353U - Pluggable wave splitting detector - Google Patents
Pluggable wave splitting detector Download PDFInfo
- Publication number
- CN212781353U CN212781353U CN202021251697.7U CN202021251697U CN212781353U CN 212781353 U CN212781353 U CN 212781353U CN 202021251697 U CN202021251697 U CN 202021251697U CN 212781353 U CN212781353 U CN 212781353U
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- optical fiber
- wavelength
- fiber connector
- pressing block
- optical
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Abstract
The utility model provides a pluggable wavelength division detector, which comprises an adapter shell, wherein the adapter shell is fixed on a coupling table in a pluggable mode; the wavelength conversion crystal is fixed in the adapter shell, and the first optical fiber connector, the second optical fiber connector and the photoelectric detector are fixed outside the adapter shell; the first optical fiber connector is connected with the first end of the wavelength conversion crystal, the second optical fiber connector is connected with the second end of the wavelength conversion crystal, and the photoelectric detector is connected with the third end of the wavelength conversion crystal; the first optical fiber connector inputs a first wavelength optical signal, and the first wavelength optical signal is input into the second optical fiber connector through the wavelength conversion crystal for coupling; the first optical fiber connector inputs a second wavelength signal and inputs the second wavelength signal to the photoelectric detector through the wavelength conversion crystal to generate a photocurrent signal. The utility model can realize the plugging and the fixing of the adapter shell and the coupling table, thereby realizing the plugging and the fixing of the wave-splitting detector; and the connecting fiber between the two fiber connectors and the photodetector can be omitted.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a pluggable formula wave division detector.
Background
Abbreviation for fiber optic connector (ROSA). The optical transmission module includes a single-mode optical transmission module and a multi-mode optical transmission module, and the overall product architecture includes an optical sub-assembly (OSA) and an electronic sub-assembly (ESA). First, in the epitaxial portion, an epitaxial wafer is fabricated by using gallium arsenide (GaAs), indium phosphide (InP), indium gallium arsenide (InGaAs), or the like as a light emitting and detecting material by Metal-Organic Chemical Vapor Deposition (MOCVD), or the like. In the chip process, the epitaxial wafer is fabricated into a laser diode. Then, the laser diode is packaged with components such as a filter and a metal cap into a TO can (Transmitter out line can), and the TO can and the ceramic sleeve are packaged into an Optical Subassembly (OSA). And finally, matching with an electronic sub-assembly (ESA), wherein the ESA internally comprises two driving ICs for transmitting and receiving and is used for driving the laser diode and the light detection diode, and the light transmission module is formed by combining the two driving ICs. The Optical sub-modules can be further subdivided into Transmitter Optical Subassembly (TOSA) and Receiver Optical Subassembly (ROSA).
The wavelength division detector is used for the optical submodule to transmit and receive the light wave. However, the conventional wavelength division detector is not an integral structure at present, and the optical fiber in the optical fiber connector needs to be strictly aligned with the butt optical fiber, so that the operation difficulty is high; therefore, the utility model provides a can pull out formula of inserting branch wave detector.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned shortcomings of the prior art, an object of the present invention is to provide a pluggable wavelength division detector for solving the problems existing in the prior art.
In order to achieve the above objects and other related objects, the present invention provides a pluggable wavelength-division detector, which comprises: the adapter shell is fixed on the coupling table in a plugging and unplugging mode;
the device also comprises a wavelength conversion crystal, a first optical fiber connector, a second optical fiber connector and a photoelectric detector; the wavelength conversion crystal is fixed in the adapter shell, and the first optical fiber connector, the second optical fiber connector and the photoelectric detector are fixed outside the adapter shell; the first optical fiber connector is connected with a first end of the wavelength conversion crystal, the second optical fiber connector is connected with a second end of the wavelength conversion crystal, and the photoelectric detector is connected with a third end of the wavelength conversion crystal;
the first optical fiber connector inputs a first wavelength optical signal, and the first wavelength optical signal is input into the second optical fiber connector through the wavelength conversion crystal for coupling; and the first optical fiber connector inputs a second wavelength signal and inputs the second wavelength signal into the photoelectric detector through the wavelength conversion crystal to generate a photocurrent signal.
Optionally, the first optical fiber connector and the second optical fiber connector have the same structure, and the first optical fiber connector includes: the optical fiber connector comprises a first pressing block, an inserting core, an optical fiber, a sleeve, a front cover and a second pressing block;
the first pressing block is cylindrical, a first through groove penetrating through the first pressing block in the axial direction is formed in the first pressing block, the first pressing block is provided with a first cylinder and a second cylinder which are arranged from left to right, the outer diameter of the first cylinder is smaller than that of the second cylinder, the sleeve is contained in the first through groove of the first pressing block, the ferrule is at least partially contained in the sleeve, the optical fiber is arranged in the ferrule, the front cover is installed on the first cylinder, the second pressing block and the front cover are arranged at intervals, the second pressing block is provided with a second through groove and a third through groove which are sequentially arranged in the left-right direction, the diameter of the third through groove is smaller than that of the second through groove, the ferrule is at least partially contained in the third through groove, a lens is arranged in the sleeve, and optical glue is filled between the lens and the optical fiber;
the other side of the second pressing block is fixed with the adapter shell through glue, so that the first optical fiber connector and the second optical fiber connector are fixed on the outer side of the adapter shell.
Optionally, the right end of the first pressing block is provided with an outer chamfer, and the right end of the first pressing block is tip-shaped.
Optionally, the front cover has a first cover portion, a second cover portion, a third cover portion and a fourth cover portion arranged from left to right, the outer diameter of the first cover portion is smaller than the outer diameter of the second cover portion, the outer diameter of the second cover portion is smaller than the outer diameter of the third cover portion, and the outer diameter of the fourth cover portion is smaller than the outer diameter of the first cover portion.
Optionally, the first wavelength optical signal comprises a 1310nm wavelength optical signal and a 1490nm wavelength optical signal.
Optionally, the second wavelength optical signal comprises an optical signal at 1550 nm.
As above, the utility model provides a pair of can pull out plug-in type divides ripples detector has following beneficial effect: the adapter shell and the coupling table are fixedly installed in a plugging mode, so that the plugging function of the wavelength division detector can be realized; and the two optical fiber connectors are directly connected through the wavelength conversion crystal, so that a connecting optical fiber between the two optical fiber connectors and the photoelectric detector can be omitted, the structure is simple to install, and the optical fiber is not easy to break in the installation process. Meanwhile, a lens is arranged in the sleeve, and optical glue is filled between the lens and the optical fiber, so that the optical fiber in the optical fiber interface assembly does not need to be strictly aligned with the butted optical fiber, and the requirement of optical transmission can be met.
Drawings
FIG. 1 is a schematic diagram of a prior art wavelength division detector;
FIG. 2 is a schematic connection diagram of the WDM detector according to the present invention;
fig. 3 is a schematic structural diagram of the optical fiber connector of the present invention.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will be readily apparent to those skilled in the art from the disclosure herein. The present invention can also be implemented or applied through other different specific embodiments, and various details in the present specification can be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict.
It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the components related to the present invention are only shown in the drawings rather than drawn according to the number, shape and size of the components in actual implementation, and the form, amount and ratio of the components in actual implementation may be changed at will, and the layout of the components may be more complicated.
Referring to fig. 1, a long distance optical fiber is required between the optical fiber connector and the optical detector, and the long distance optical fiber not only wastes materials, but also is prone to fiber breakage during installation. Therefore, as shown in fig. 2, the utility model provides a pluggable wavelength division detector, including: the adapter shell is fixed on the coupling table in a plugging and unplugging mode;
the device also comprises a wavelength conversion crystal, a first optical fiber connector, a second optical fiber connector and a photoelectric detector; the wavelength conversion crystal is fixed in the adapter shell, and the first optical fiber connector, the second optical fiber connector and the photoelectric detector are fixed outside the adapter shell; the first optical fiber connector is connected with a first end of the wavelength conversion crystal, the second optical fiber connector is connected with a second end of the wavelength conversion crystal, and the photoelectric detector is connected with a third end of the wavelength conversion crystal;
the first optical fiber connector inputs a first wavelength optical signal, and the first wavelength optical signal is input into the second optical fiber connector through the wavelength conversion crystal for coupling; and the first optical fiber connector inputs a second wavelength signal and inputs the second wavelength signal into the photoelectric detector through the wavelength conversion crystal to generate a photocurrent signal.
Specifically, the first wavelength optical signal includes a 1310nm wavelength optical signal and a 1490nm wavelength optical signal. The second wavelength optical signal comprises an optical signal at 1550 nm. The wavelength division detector is used for transmitting light waves and receiving light waves by the optical submodule, can realize the combination (multiplexing) and the division (demultiplexing) of optical signals of two communication windows of 1550nm and 1490nm/1310nm, multiplies the transmission capacity of a single optical fiber, can also realize single-fiber two-way communication, is widely applied to the upgrading of an optical fiber network, expands the capacity or introduces comprehensive new services (broadcasting television, telecommunication, the internet is easy to integrate into PON + EOC), and advances and implements the integration of three networks, TV signals need to be merged and transmitted in a backbone network, and three wavelengths of 1310nm, 1490nm and 1550nm exist in a user optical fiber. Wherein 1310nm and 1490nm are used for PON data transmission and 1550nm is used for cable television signal transmission. When the end user needs to transfer the wavelength of data transmission to the PON interface, the signal of the cable television is converted into an electric signal to be amplified and received.
The utility model provides a plug-in type divides the ripples detector comprises adapter casing, wavelength conversion crystal, three big main parts of photoelectric detector. Specifically, the adapter housing is fixedly mounted on the coupling table in a plugging and pulling manner, then the wavelength conversion crystal is placed, a 1310nm/1490nm wavelength optical signal is input to an interface of the connector a (first connector), an insertion loss is coupled into a specified range by an interface of the connector B (second connector) through the coupling table, and the adapter housing and the wavelength conversion crystal are fixed by glue. Then the interface of the connector A inputs the optical signal of 1550nm wavelength, another one side connects with the photodetector, wherein the optical wavelength converter of 1550nm bearing CATV (Community Antenna Television network) analog signal enters into the photodetector and produces the photocurrent signal (realize the photoelectric conversion function); thereby realizing the functions of the wavelength division multiplexer and the analog detection PIN.
The utility model discloses in, because the optic fibre among the fiber connector need with dock optic fibre strict alignment, the operation degree of difficulty is bigger, consequently the utility model provides a first fiber connector with second fiber connector's structure is the same, consequently, as shown in fig. 3, first fiber connector 100 including: the optical fiber connector comprises a first pressing block 1, an inserting core 2, an optical fiber 3, a sleeve 4, a front cover 5 and a second pressing block 6.
First briquetting 1 is the tube-shape, first briquetting 1 is equipped with and runs through first logical groove 10 of first briquetting 1 along axial direction, first briquetting 1 has first barrel 11 and the second barrel 12 that sets up from a left side to the right side. The outer diameter of the first cylinder 11 is smaller than that of the second cylinder 12, and the sleeve 4 is accommodated in the first through groove 10 of the first pressing block 1.
The ferrule 2 is at least partially received within the sleeve 4, and the optical fiber 3 is disposed within the ferrule 2. The front cover 5 is mounted on the first cylinder 11, wherein the second pressing block 6 is arranged at an interval with the front cover 5. The second pressing block 6 is provided with a second through groove 62 and a third through groove 63 which are sequentially arranged along the left-right direction, the diameter of the third through groove 63 is smaller than that of the second through groove 62, and at least part of the ferrule 2 is accommodated in the third through groove 63. The second pressing block 6 is spaced from the front cover 5, so that the optical fiber connector 100 has good insulating performance. A lens 7 is arranged in the sleeve 4, and optical glue 8 is filled between the lens 7 and the optical fiber 3.
The other side of the second pressing block is fixed with the adapter shell through glue, so that the first optical fiber connector and the second optical fiber connector are fixed on the outer side of the adapter shell. The photodetector is also fixed to the outside of the adapter housing by glue.
The right end of the first pressing block 1 is provided with an outer chamfer 13, and the right end of the first pressing block 1 is in a tip shape. The front cover 5 includes a first lid portion 51, a second lid portion 52, a third lid portion 53, and a fourth lid portion 54 provided from left to right. The first lid portion 51 has an outer diameter smaller than that of the second lid portion 52, the second lid portion 52 has an outer diameter smaller than that of the third lid portion 53, and the fourth lid portion 54 has an outer diameter smaller than that of the first lid portion 51.
The first and second cover portions 51 and 52 are interference-fitted with the ferrule 2. The third cover portion 53 and the fourth cover portion 54 are in interference fit with the first cylinder 11 of the first press block 1. The inserting core 2 is in interference fit with the second pressing block 6. The insulation requirement between the second pressing block 6 and the first pressing block 1 is 1M omega. The second pressing block 6 is provided with an inner chamfer 631 at the left end of the third through groove 63. And an insulating glue is dispensed between the sleeve 4 and the front cover 5. The left end of the insertion core 2 is provided with an inclined surface 21, and the right end of the insertion core 2 is provided with two chamfers 22.
The utility model can realize the plugging and unplugging function of the wave division detector by plugging, installing and fixing the adapter shell and the coupling table; and the two optical fiber connectors are directly connected through the wavelength conversion crystal, so that a connecting optical fiber between the two optical fiber connectors and the photoelectric detector can be omitted, the structure is simple to install, and the optical fiber is not easy to break in the installation process. Meanwhile, a lens is arranged in the sleeve, and optical glue is filled between the lens and the optical fiber, so that the optical fiber in the optical fiber interface assembly does not need to be strictly aligned with the butted optical fiber, and the requirement of optical transmission can be met.
The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (6)
1. A pluggable wavelength division detector is characterized by comprising: the adapter shell is fixed on the coupling table in a plugging and unplugging mode;
the device also comprises a wavelength conversion crystal, a first optical fiber connector, a second optical fiber connector and a photoelectric detector; the wavelength conversion crystal is fixed in the adapter shell, and the first optical fiber connector, the second optical fiber connector and the photoelectric detector are fixed outside the adapter shell; the first optical fiber connector is connected with a first end of the wavelength conversion crystal, the second optical fiber connector is connected with a second end of the wavelength conversion crystal, and the photoelectric detector is connected with a third end of the wavelength conversion crystal;
the first optical fiber connector inputs a first wavelength optical signal, and the first wavelength optical signal is input into the second optical fiber connector through the wavelength conversion crystal for coupling; and the first optical fiber connector inputs a second wavelength signal and inputs the second wavelength signal into the photoelectric detector through the wavelength conversion crystal to generate a photocurrent signal.
2. The pluggable wavelength division probe according to claim 1, wherein the first optical fiber connector and the second optical fiber connector are identical in structure, and the first optical fiber connector comprises: the optical fiber connector comprises a first pressing block, an inserting core, an optical fiber, a sleeve, a front cover and a second pressing block;
the first pressing block is cylindrical, a first through groove penetrating through the first pressing block in the axial direction is formed in the first pressing block, the first pressing block is provided with a first cylinder and a second cylinder which are arranged from left to right, the outer diameter of the first cylinder is smaller than that of the second cylinder, the sleeve is contained in the first through groove of the first pressing block, the ferrule is at least partially contained in the sleeve, the optical fiber is arranged in the ferrule, the front cover is installed on the first cylinder, the second pressing block and the front cover are arranged at intervals, the second pressing block is provided with a second through groove and a third through groove which are sequentially arranged in the left-right direction, the diameter of the third through groove is smaller than that of the second through groove, the ferrule is at least partially contained in the third through groove, a lens is arranged in the sleeve, and optical glue is filled between the lens and the optical fiber;
the other side of the second pressing block is fixed with the adapter shell through glue, so that the first optical fiber connector and the second optical fiber connector are fixed on the outer side of the adapter shell.
3. The pluggable wavelength division detector according to claim 2, wherein the right end of the first pressing block is provided with an external chamfer, and the right end of the first pressing block is in a tip shape.
4. The pluggable wavelength-splitting detector of claim 2, wherein the front cover has a first cover portion, a second cover portion, a third cover portion and a fourth cover portion arranged from left to right, the first cover portion has an outer diameter smaller than that of the second cover portion, the second cover portion has an outer diameter smaller than that of the third cover portion, and the fourth cover portion has an outer diameter smaller than that of the first cover portion.
5. The pluggable wavelength-splitting detector of claim 1, wherein the first wavelength optical signal comprises 1310nm wavelength optical signal and 1490nm wavelength optical signal.
6. The pluggable wavelength-splitting detector of claim 1, wherein the second wavelength optical signal comprises a 1550nm wavelength optical signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251697.7U CN212781353U (en) | 2020-06-30 | 2020-06-30 | Pluggable wave splitting detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021251697.7U CN212781353U (en) | 2020-06-30 | 2020-06-30 | Pluggable wave splitting detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212781353U true CN212781353U (en) | 2021-03-23 |
Family
ID=75086494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021251697.7U Expired - Fee Related CN212781353U (en) | 2020-06-30 | 2020-06-30 | Pluggable wave splitting detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212781353U (en) |
-
2020
- 2020-06-30 CN CN202021251697.7U patent/CN212781353U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
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Granted publication date: 20210323 |