CN217981938U - Single-fiber BOSA structure and optical communication device - Google Patents
Single-fiber BOSA structure and optical communication device Download PDFInfo
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- CN217981938U CN217981938U CN202222079802.9U CN202222079802U CN217981938U CN 217981938 U CN217981938 U CN 217981938U CN 202222079802 U CN202222079802 U CN 202222079802U CN 217981938 U CN217981938 U CN 217981938U
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Abstract
The application relates to the technical field of optical communication, and provides a single-fiber BOSA structure and an optical communication device, wherein the single-fiber BOSA structure comprises a base, an optical fiber adapter, an optical transmitter, an adjusting ring, an optical receiver and a 45-degree optical filter. The single-fiber BOSA structure can realize the sending and receiving of optical signals by arranging the base, the optical fiber adapter, the optical transmitter, the adjusting ring, the optical receiver and the 45-degree optical filter; wherein, the optical fiber adapter passes through the flat side axle head and is connected with the cooperation of first logical unthreaded hole, first logical unthreaded hole has formed the effective location to the optical fiber adapter, the installation is convenient, the position adjustment process of optical fiber adapter has been left out, the user only needs the position through adjustable ring adjustment light emitter, with the coupling of realization light emitter and optical fiber adapter, the position adjustment is convenient, and can ensure to realize maximum power after light emitter and the optical fiber adapter coupling, the simplification of coupling adjustment operation has been realized, the effectual operation degree of difficulty that has reduced, promote coupling efficiency.
Description
Technical Field
The application relates to the technical field of optical communication, in particular to a single-fiber BOSA structure and an optical communication device.
Background
Fiber optic communications has become one of the major pillars of modern communications, and has evolved rapidly due to its numerous advantages, such as large communication capacity, long transmission distances, low signal interference, and good security. BOSA (Bi-Directional Optical Sub-Assembly, light emitting and receiving component) is a photoelectric conversion device integrating emitting and receiving, can realize the function of bidirectional transmission of data in a single Optical fiber, and is an important device applied to an Optical fiber communication system.
When an existing single-fiber BOSA product is installed, an adapter and a horizontal transmitting end are preferentially matched, the position of the adapter and a base is adjusted to achieve coupling of the horizontal transmitting end and the adapter, during operation, the position of the adapter in the X, Y and Z three-axis directions needs to be adjusted to enable the adapter to be aligned with the horizontal transmitting end, and coupling of the horizontal transmitting end and the adapter is achieved.
Therefore, the prior art has defects and needs to be improved and developed.
SUMMERY OF THE UTILITY MODEL
In view of the above-mentioned deficiencies of the prior art, the present application aims to provide a single-fiber BOSA structure and an optical communication device, which aim to solve the problems of the prior art that the coupling adjustment of the single-fiber BOSA product structure is very inconvenient, the whole coupling adjustment operation is complicated, and the efficiency is low.
The technical scheme adopted by the application for solving the technical problem is as follows: a single fiber BOSA structure comprising:
the base is provided with an accommodating cavity, and a first light through hole, a second light through hole and a third light through hole which are communicated with the accommodating cavity, the first light through hole and the second light through hole are oppositely arranged, and the third light through hole is perpendicular to the first light through hole and the second light through hole;
the optical fiber adapter is provided with a flat square shaft end, and the flat square shaft end is connected with the first light through hole in a matched mode;
the light emitter is arranged in the second light through hole and is matched with the inner hole of the adjusting ring, the light emitter can slide along the axial direction of the adjusting ring, and the adjusting ring is fixedly arranged on the base;
the light receiver is arranged in the third light passing hole;
the 45-degree optical filter is arranged in the accommodating cavity, couples the optical signal of the optical transmitter to the optical fiber adapter and couples the optical signal of the optical fiber adapter to the optical receiver through the 45-degree optical filter.
Further, the fiber optic adapter comprises:
the end, close to the base, of the fixed shell is provided with the flat square shaft end;
the sleeve is accommodated in the fixed shell;
and one end of the optical fiber ferrule is inserted in the fixed shell and is connected with the fixed shell and the sleeve in a matching manner.
Furthermore, the fixed shell is provided with a first annular bulge, and the first annular bulge is connected with the flat square shaft end and is abutted against the base.
Further, flat square axle head includes arc portion and spacing portion, first logical unthreaded hole includes arc surface and plane, the arc surface with planar both ends are connected, the arc portion with the arc surface cooperatees, spacing portion with the plane cooperatees.
Furthermore, one end of the adjusting ring, which is close to the base, is provided with a second annular bulge, and the second annular bulge abuts against the base.
Further, the light emitter includes:
the pipe sleeve is matched with the inner hole of the adjusting ring and can slide along the axial direction of the adjusting ring;
and one end of the laser diode is inserted in the pipe sleeve and is fixedly connected with the side surface of the pipe sleeve, and the laser diode and the pipe sleeve are coaxially arranged.
Further, the laser diode includes:
a tube holder;
the tube cap is arranged on one side of the tube seat, and the lens is embedded on one end, deviating from the tube seat, of the tube cap.
Further, the single-fiber BOSA structure further includes:
the 0-degree optical filter is arranged in the accommodating cavity, and the 0-degree optical filter is positioned between the light emitter and the 45-degree optical filter and is arranged opposite to the light emitter.
Further, the single-fiber BOSA structure further includes:
the isolator is arranged in the accommodating cavity, is positioned between the light emitter and the 45-degree light filter and is arranged opposite to the light emitter.
The other technical scheme adopted by the application for solving the technical problem is as follows: an optical communications device comprising a single fiber BOSA structure as described above.
Compared with the prior art, the single-fiber BOSA structure and the optical communication device have the advantages that the base, the optical fiber adapter, the optical transmitter, the adjusting ring, the optical receiver and the 45-degree optical filter are arranged, so that the single-fiber BOSA structure can realize the transmission and the reception of optical signals; wherein, the optical fiber adapter passes through the flat side axle head and is connected with the cooperation of first logical unthreaded hole, first logical unthreaded hole has formed the effective location to the optical fiber adapter, the installation is convenient, the position adjustment process of optical fiber adapter has been left out, the user only needs the position through adjustable ring adjustment light emitter, with the coupling of realization light emitter and optical fiber adapter, the position adjustment is convenient, and can ensure to realize maximum power after light emitter and the optical fiber adapter coupling, the simplification of coupling adjustment operation has been realized, the effectual operation degree of difficulty that has reduced, promote coupling efficiency.
Drawings
FIG. 1 is a schematic perspective view of a single fiber BOSA structure provided herein;
FIG. 2 is a schematic perspective exploded view of a single fiber BOSA structure provided herein;
FIG. 3 is a schematic perspective view, in cross section, of a base in a single fiber BOSA structure provided herein;
FIG. 4 is a schematic cross-sectional view of a deformed structure of a single fiber BOSA structure provided herein;
FIG. 5 is a functional schematic of a single fiber BOSA structure provided herein;
FIG. 6 is a schematic perspective view of a fiber optic adapter in a single fiber BOSA configuration as provided herein;
description of reference numerals:
10. single fiber BOSA structure; 11. a base; 12. a fiber optic adapter; 13. a light emitter; 14. an adjusting ring; 15. an optical receiver; 16. a 45-degree optical filter; 17. a 0 degree filter; 18. an isolator; 111. an accommodating cavity; 112. a first light passing hole; 113. a second light passing hole; 114. a third light passing hole; 1121. a circular arc surface; 1122. a plane; 121. a flat square shaft end; 122. a stationary case; 123. a sleeve; 124. an optical fiber ferrule; 1211. a circular arc portion; 1212. a limiting part; 1221. a first housing; 1222. a second housing; 1223. a first annular projection; 141. a second annular projection; 131. pipe sleeve; 132. a laser diode; 1321. a tube holder; 1322. a pipe cap; 1323. a lens.
Detailed Description
Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the present application. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Fiber optic communications has become one of the major pillars of modern communications, and has evolved rapidly due to its numerous advantages, such as large communication capacity, long transmission distances, low signal interference, and good security. BOSA (Bi-Directional Optical Sub-Assembly, light emitting and receiving component) is a photoelectric conversion device integrating emitting and receiving, can realize the function of bidirectional transmission of data in a single Optical fiber, and is an important device applied to an Optical fiber communication system. When an existing single-fiber BOSA product is installed, an adapter and a horizontal transmitting end are preferentially matched, the position of the adapter and a base is adjusted to achieve coupling of the horizontal transmitting end and the adapter, during operation, the position of the adapter in the X, Y and Z three-axis directions needs to be adjusted to enable the adapter to be aligned with the horizontal transmitting end, and coupling of the horizontal transmitting end and the adapter is achieved. Based on the problems that the coupling adjustment of a single-fiber BOSA product structure is very inconvenient, the whole coupling adjustment operation is complex and the efficiency is low in the prior art, the single-fiber BOSA structure and the optical communication device are provided, and the single-fiber BOSA structure can realize the sending and receiving of optical signals by arranging the base, the optical fiber adapter, the optical transmitter, the adjusting ring, the optical receiver and the 45-degree optical filter; the optical fiber adapter is matched and connected with the first light through hole through the flat square shaft end, the first light through hole forms effective positioning on the optical fiber adapter, the installation is convenient, the position adjusting process of the optical fiber adapter is omitted, a user only needs to adjust the position of the light emitter through the adjusting ring to realize the coupling of the light emitter and the optical fiber adapter, the position adjustment is convenient, the maximum power can be realized after the light emitter and the optical fiber adapter are coupled, the coupling adjusting operation is simplified, the operation difficulty is effectively reduced, and the coupling efficiency is improved; reference will be made in detail to the following examples.
Referring to fig. 1 to fig. 5 in combination, in a first embodiment of the present application, a single-fiber BOSA structure 10 is provided, which includes a base 11, an optical fiber adapter 12, an optical transmitter 13, an adjusting ring 14, an optical receiver 15, and a 45-degree optical filter 16, where the base 11 is provided with an accommodating cavity 111, and a first light through hole 112, a second light through hole 113, and a third light through hole 114 that are communicated with the accommodating cavity 111, the first light through hole 112 and the second light through hole 113 are oppositely disposed, and the third light through hole 114 is disposed perpendicular to the first light through hole 112 and the second light through hole 113; the optical fiber adapter 12 is provided with a flat square shaft end 121, and the flat square shaft end 121 is connected with the first light through hole 112 in a matching manner; the light emitter 13 is arranged in the second light through hole 113 and is matched with the inner hole of the adjusting ring 14, the light emitter 13 can slide along the axial direction of the adjusting ring 14, and the adjusting ring 14 is fixedly arranged on the base 11; the light receiver 15 is disposed in the third light passing hole 114; the 45-degree optical filter 16 is disposed in the accommodating cavity 111, and the 45-degree optical filter 16 couples the optical signal of the optical transmitter 13 to the optical fiber adapter 12 and couples the optical signal of the optical fiber adapter 12 to the optical receiver 15.
It can be understood that when an existing single-fiber BOSA product is installed, the positions of the adapter and the base need to be adjusted to achieve coupling of the horizontal sending end and the adapter, and the existing single-fiber BOSA product is inconvenient in structure installation and adjustment process, complex in operation and low in efficiency; in the single-fiber BOSA structure 10 provided by the application, the flat square shaft end 121 arranged on the optical fiber adapter 12 is in fit connection with the first light through hole 112 arranged on the base 11, the first light through hole 112 forms effective positioning on the optical fiber adapter 12, the installation is convenient, the adjusting process of the optical fiber adapter 12 is omitted, a user only needs to adjust the position of the light emitter 13 through the adjusting ring 14, the coupling of the light emitter 13 and the optical fiber adapter 12 is realized, the maximum power can be realized after the coupling of the light emitter 13 and the optical fiber adapter 12, the coupling adjusting operation is simplified, the operation difficulty is effectively reduced, and the coupling efficiency is improved;
specifically, the base 11 is provided with an accommodating cavity 111, and a first light through hole 112, a second light through hole 113 and a third light through hole 114 which are communicated with the accommodating cavity 111; the accommodating cavity 111 is used for installing parts such as an isolator 18 or an optical filter and the like, and allowing optical signals emitted by the optical transmitter 13 and optical fibers installed on the optical fiber adapter 12 to pass through; the first light through hole 112 and the second light through hole 113 are oppositely arranged on two sides of the base 11, the third light through hole 114 is perpendicular to the first light through hole 112 and the second light through hole 113, and the optical fiber adapter 12, the optical transmitter 13 and the optical receiver 15 are respectively arranged in the first light through hole 112, the second light through hole 113 and the third light through hole 114; the optical fiber adapter 12 is coaxially arranged with the optical transmitter 13, the optical receiver 15 is vertically arranged relative to the optical fiber adapter 12 and the optical transmitter 13, the optical transmitter 13 works on the principle of converting an electrical signal into an optical signal, and the optical receiver 15 works on the principle of converting an optical signal into an electrical signal; the optical fiber adapter 12 is used for installing an optical fiber, so as to couple the optical signal emitted by the optical transmitter 13 to the optical fiber and couple the optical signal emitted by the optical fiber to the optical receiver 15, thereby realizing transmission of the optical signal; the 45-degree optical filter 16 is arranged in the accommodating cavity 111 and forms a 45-degree angle relative to the horizontal plane, one end, close to the optical receiver 15, of the 45-degree optical filter 16 inclines towards the direction away from the optical fiber adapter 12, the 45-degree optical filter 16 is an interference optical filter and is used for selecting an optical device of a required radiation wave band, the transmission effect of a spectrum is obtained mainly by utilizing the interference principle of light, and the optical filter deposits films with different refractive indexes on an optical substrate by a vacuum coating method so as to achieve different optical effects; when the mixed light of multiple wavelengths passes through the optical filter, an interference effect is generated due to different refractive indexes, the light with a specific wavelength has high transmittance, and other wavelengths are reflected and absorbed; in the present application, the 45-degree optical filter 16 allows the optical signal emitted by the optical transmitter 13 to pass through, reflects the optical signal emitted by the optical fiber mounted on the optical fiber adapter 12, and as shown in fig. 5, the dotted arrow indicates the path of the optical signal emitted by the optical transmitter 13, the solid arrow indicates the path of the optical signal emitted by the optical receiver 15, and the 45-degree optical filter 16 realizes coupling of the optical signal emitted by the optical transmitter 13 to the optical fiber mounted on the optical fiber adapter 12 and coupling of the optical signal emitted by the optical fiber mounted on the optical fiber adapter 12 to the optical receiver 15; the adjusting ring 14 is arranged on one side of the second light through hole 113 of the base 11, the adjusting ring 14 is sleeved on the light emitter 13 and is arranged in a matched manner with the light emitter 13, so that the light emitter 13 can be adjusted along the axial direction of the adjusting ring 14, the adjusting ring 14 can be adjusted in the horizontal direction and the vertical direction on the side surface of the base 11, the adjusting ring 14 and the optical fiber adapter 12 are ensured to be in the coaxial position, and the emergent light of the light emitter 13 is coupled to the optical fiber adapter 12;
by arranging the base 11, the optical fiber adapter 12, the optical transmitter 13, the adjusting ring 14, the optical receiver 15 and the 45-degree optical filter 16, the single-fiber BOSA structure 10 can realize the transmission and reception of optical signals; wherein, fiber adapter 12 passes through flat side axle head 121 and is connected with the cooperation of first logical unthreaded hole 112, first logical unthreaded hole 112 has formed the effective location to fiber adapter 12, the installation is convenient, the position adjustment process of fiber adapter 12 has been omitted, the user only needs the position of adjusting light emitter 13 through adjusting ring 14, in order to realize the coupling of light emitter 13 and fiber adapter 12, the position adjustment is convenient, and can ensure to realize maximum power after light emitter 13 and the coupling of fiber adapter 12, the simplification of coupling adjustment operation has been realized, the effectual operation degree of difficulty that has reduced, promote coupling efficiency.
It should be noted that, when in use, the optical fiber adapter 12 is first connected with the base 11 in a matching manner and is welded and fixed, specifically, the flat square shaft end 121 and the first light through hole 112 form an interference fit; then adjusting the positions of the light emitter 13 and the adjusting ring 14 and the position of the light receiver 15 to realize the coupling of the light emitter 13, the light receiver 15 and the optical fiber adapter 12 in the directions of three axes of X, Y and Z, and finally fixing the light emitter 13, the adjusting ring 14 and the base 11 by adopting a laser welding process and fixing the light receiver 15 and the base 11 by adopting a dispensing fixing mode; this application forms interference fit through last flat side axle head 121 of light adapter 12 and base for the focus is adjusted and is taken place in Z direction and Y direction, and fine solution the focus sensitive, the responsibility is on the low side, the bad defect of sensitivity, and optic fibre adapter 12 is at X, Y, the removal of Z triaxial and the problem of rotation focusing.
With continued reference to fig. 2 and 4, in other preferred embodiments, the fiber optic adapter 12 includes a stationary housing 122, a ferrule 123, and a fiber stub 124; one end of the fixed shell 122 close to the base 11 is provided with the flat square shaft end 121; the sleeve 123 is received in the fixed shell 122; one end of the optical fiber ferrule 124 is inserted into the fixing housing 122, and is connected to the fixing housing 122 and the sleeve 123 in a matching manner.
It can be understood that the optical fiber ferrule 124 is used for installing and fixing an optical fiber, generally, one end of the optical fiber ferrule 124 is provided with an 8 ° inclined plane for receiving an optical signal sent by the optical transmitter 13, a PC surface at the other end is butted with an end surface of the jumper ferrule, and the optical fiber is embedded in the optical fiber ferrule 124 and the jumper ferrule; the sleeve 123 is used for fixing the optical fiber ferrule 124 and the jumper ferrule so as to improve the alignment precision of the optical fiber ferrule 124 and the jumper ferrule; the fixing shell 122 is used for installing the fixing sleeve 123 and the optical fiber ferrule 124, and ensuring that the optical fiber ferrule 124 is aligned with the optical transmitter 13, so as to realize effective coupling of the optical transmitter 13 and the optical fiber ferrule 124; through setting up fixed shell 122, sleeve 123 and optic fibre lock pin 124, and set up flat square axle head 121 in the one end that fixed shell 122 is close to base 11, make fixed shell 122 and base 11 cooperation be connected, base 11 forms the locate action to optic fibre adapter 12, the installation degree of difficulty of optic fibre adapter 12 has been reduced, the position adjustment process of optic fibre adapter 12 has been omitted, the user only needs the position of adjusting light emitter 13 through adjustable ring 14, in order to realize the coupling of light emitter 13 and optic fibre adapter 12, and can ensure to realize maximum power behind light emitter 13 and the coupling of optic fibre adapter 12, the simplification of coupling adjustment operation has been realized, the effectual operation degree of difficulty that has reduced, promote coupling efficiency.
With continued reference to fig. 2 and 4, in other preferred embodiments, the fixed housing 122 includes a first housing 1221 and a second housing 1222; the stub shaft 121 is disposed at one end of the first housing 1221 close to the base 11, the second housing 1222 is inserted into the first housing 1221, and the sleeve 123 is accommodated in a space surrounded by the first housing 1221 and the second housing 1222.
It can be appreciated that the first housing 1221 and the second housing 1222 separately provided from the fixed housing 122 facilitates installation of the sleeve 123, the fiber stub 124, and the jumper stub.
With continued reference to fig. 2 and 4, in other preferred embodiments, the fixing shell 122 is provided with a first annular protrusion 1223, and the first annular protrusion 1223 is connected to the stub axle 121 and abuts against the base 11.
It can be understood that when the fixing shell 122 is installed on the base 11, the flat square shaft end 121 is connected with the first light through hole 112 in a matching manner, the first annular protrusion 1223 abuts against the side surface of the base 11, the first annular protrusion 1223 has a limiting effect, so that the installation of the fixing shell 122 is facilitated, the contact area between the fixing shell 122 and the base 11 is increased, and the connection reliability between the fixing shell 122 and the base 11 is improved; during installation, the first annular protrusion 1223 is used as a positioning reference, and when the first annular protrusion 1223 abuts against the base 11, the fixed shell 122 is installed in place, so that the installation difficulty is effectively reduced.
Referring to fig. 3 and fig. 6, in another preferred embodiment, the flat shaft end 121 includes an arc portion 1211 and a limiting portion 1212, the first light passing hole 112 includes an arc surface 1121 and a plane 1122, the arc surface 1121 is connected to two ends of the plane 1122, the arc portion 1211 is engaged with the arc surface 1121, and the limiting portion 1212 is engaged with the plane 1122.
It can be understood that the circular arc portion 1211 cooperates with the circular arc surface 1121 to achieve position limitation of the optical fiber adapter 12 in the directions of three axes, namely X, Y, and Z, and provide effective guarantee for coupling the optical fiber adapter 12 with the light emitter 13; the limiting portion 1212 is matched with the plane 1122, so that the axial rotation of the optical fiber adapter 12 is limited, and an effective guarantee is provided for achieving the maximum power after the optical fiber adapter 12 is coupled with the optical transmitter 13.
With continued reference to fig. 4, in other preferred embodiments, a second annular protrusion 141 is disposed at an end of the adjusting ring 14 close to the base 11, and the second annular protrusion 141 abuts against the base 11.
It will be appreciated that the abutment of the second annular protrusion 141 against the base 11 increases the contact area between the adjusting ring 14 and the base 11, thereby improving the stability of the connection between the adjusting ring 14 and the base 11.
With continued reference to fig. 2 and 4, in other preferred embodiments, the optical transmitter 13 includes a sleeve 131 and a laser diode 132; the sleeve 131 is arranged in a matching way with the inner hole of the adjusting ring 14 and can slide along the axial direction of the adjusting ring 14; one end of the laser diode 132 is inserted into the pipe sleeve 131 and fixedly connected with the side surface of the pipe sleeve 131, and the laser diode 132 and the pipe sleeve 131 are coaxially arranged.
It can be understood that the laser diode 132 is used for converting an electrical signal into an optical signal, so that the optical transmitter 13 realizes the transmitting function of the optical signal, and the laser diode 132 is connected with the adjusting ring 14 through the pipe sleeve 131, so that the laser diode 132 can move along the axial direction of the adjusting ring 14, and the adjustment of the focal length is realized, and further the accuracy of the focal length matching between the laser diode 132 and the optical fiber adapter 12 can be effectively improved.
With continued reference to fig. 4, in other preferred embodiments, the laser diode 132 includes a stem 1321, a cap 1322, and a lens 1323; the cap 1322 is covered on one side of the tube seat 1321, and the lens 1323 is embedded on one end of the cap 1322 departing from the tube seat 1321.
It can be understood that, the stem 1321 of the laser diode 132 is usually provided with components such as metal pins and a laser chip, the cap 1322 is covered on one side of the stem 1321 where the laser chip is installed, a lens 1323 is embedded at one end of the cap 1322 facing away from the stem 1321, the lens 1323 is used for realizing focusing of an optical signal, a conversion process between an electrical signal and the optical signal is performed on the stem 1321, and a generated optical signal is emitted through the lens 1323 and coupled to the optical fiber adapter 12; by providing the tube seat 1321, the tube cap 1322, and the lens 1323, the electrical signal is converted into the optical signal and transmitted to the optical fiber adapter 12, and the optical signal transmission function of the optical transmitter 13 is ensured.
With reference to fig. 2, in other preferred embodiments, the single-fiber BOSA structure 10 further includes a 0-degree filter 17, the 0-degree filter 17 is disposed in the accommodating cavity 111, and the 0-degree filter 17 is located between the light emitter 13 and the 45-degree filter 16 and is disposed opposite to the light emitter 13.
It can be understood that the accommodating cavity 111 of the base 11 is provided with a mounting position, and the 0-degree optical filter 17 is mounted on the corresponding mounting position; the 0-degree filter 17 has the same action principle as the 45-degree filter 16, and can realize the transmission of light with specific wavelength while light with other wavelengths is emitted and absorbed; by arranging the 0-degree optical filter 17, stray light can be filtered, interference on optical signals sent by the optical transmitter 13 is avoided, and the coupling efficiency of the single-fiber BOSA structure 10 is effectively improved.
In other preferred embodiments, the 0-degree optical filter 17 is disposed on the optical receiver 15 and the 45-degree optical filter 16, so as to filter out stray light, avoid interference on optical signals received by the optical receiver 15, and further effectively improve the coupling efficiency of the single-fiber BOSA structure 10.
With continued reference to fig. 2, in other preferred embodiments, the single-fiber BOSA structure 10 further includes an isolator 18, where the isolator 18 is disposed in the accommodating cavity 111, and the isolator 18 is located between the light emitter 13 and the 45-degree filter 16 and is disposed opposite to the light emitter 13.
It can be understood that, the accommodating cavity 111 of the base 11 is provided with a mounting position, the isolator 18 is mounted on the corresponding mounting position, the isolator 18 faces the optical transmitter 13 and is located on the optical path of the optical signal sent by the optical transmitter 13, and the isolator 18 can reduce the influence of the reflected light on the performance of the optical transmitter 13 and reduce crosstalk and interference.
In a second embodiment of the present application, an optical communication device is also provided, which includes the single-fiber BOSA structure 10 as described above.
It can be understood that, in the optical communication device provided in the present application, the single-fiber BOSA structure 10 is adopted, and by providing the base 11, the optical fiber adapter 12, the optical transmitter 13, the adjusting ring 14, the optical receiver 15, and the 45-degree optical filter 16, the single-fiber BOSA structure 10 can implement transmission and reception of an optical signal; wherein, fiber adapter 12 passes through flat side axle head 121 and is connected with the cooperation of first logical unthreaded hole 112, first logical unthreaded hole 112 has formed the effective location to fiber adapter 12, the installation is convenient, the position adjustment process of fiber adapter 12 has been omitted, the user only needs the position of adjusting light emitter 13 through adjusting ring 14, in order to realize the coupling of light emitter 13 and fiber adapter 12, the position adjustment is convenient, and can ensure to realize maximum power after light emitter 13 and the coupling of fiber adapter 12, the simplification of coupling adjustment operation has been realized, the effectual operation degree of difficulty that has reduced, promote coupling efficiency.
To sum up, the present application provides a single fiber BOSA structure and optical communication device, and the single fiber BOSA structure includes: the base is provided with an accommodating cavity, a first light through hole, a second light through hole and a third light through hole, the first light through hole, the second light through hole and the third light through hole are communicated with the accommodating cavity, the first light through hole and the second light through hole are arranged oppositely, and the third light through hole is arranged perpendicular to the first light through hole and the second light through hole; the optical fiber adapter is provided with a flat square shaft end, and the flat square shaft end is connected with the first light through hole in a matched mode; the light emitter is arranged in the second light through hole and is matched with the inner hole of the adjusting ring, the light emitter can slide along the axial direction of the adjusting ring, and the adjusting ring is fixedly arranged on the base; the light receiver is arranged in the third light through hole; 45 degree optical filter, 45 degree optical filter set up in the holding chamber, and 45 degree optical filter couples the light signal of optical emitter to the fiber adapter to and couple the light signal of fiber adapter to optical receiver. The single-fiber BOSA structure can realize the sending and receiving of optical signals by arranging the base, the optical fiber adapter, the optical transmitter, the adjusting ring, the optical receiver and the 45-degree optical filter; wherein, the optical fiber adapter passes through the flat side axle head and is connected with the cooperation of first logical unthreaded hole, first logical unthreaded hole has formed the effective location to the optical fiber adapter, the installation is convenient, the position adjustment process of optical fiber adapter has been left out, the user only needs the position through adjustable ring adjustment light emitter, with the coupling of realization light emitter and optical fiber adapter, the position adjustment is convenient, and can ensure to realize maximum power after light emitter and the optical fiber adapter coupling, the simplification of coupling adjustment operation has been realized, the effectual operation degree of difficulty that has reduced, promote coupling efficiency.
It should be understood that the application of the present application is not limited to the above examples, and that modifications or changes may be made by those skilled in the art based on the above description, and all such modifications and changes are intended to fall within the scope of the appended claims.
Claims (10)
1. A single fiber BOSA structure, comprising:
the base is provided with an accommodating cavity, and a first light through hole, a second light through hole and a third light through hole which are communicated with the accommodating cavity, the first light through hole and the second light through hole are oppositely arranged, and the third light through hole is perpendicular to the first light through hole and the second light through hole;
the optical fiber adapter is provided with a flat square shaft end, and the flat square shaft end is connected with the first light through hole in a matched mode;
the light emitter is arranged in the second light through hole and is matched with an inner hole of the adjusting ring, the light emitter can slide along the axial direction of the adjusting ring, and the adjusting ring is fixedly arranged on the base;
the light receiver is arranged in the third light passing hole;
the 45-degree optical filter is arranged in the accommodating cavity, the 45-degree optical filter couples the optical signal of the optical transmitter to the optical fiber adapter, and couples the optical signal of the optical fiber adapter to the optical receiver.
2. The single fiber BOSA structure of claim 1, wherein the fiber optic adapter comprises:
the end, close to the base, of the fixed shell is provided with the flat square shaft end;
the sleeve is accommodated in the fixed shell;
and one end of the optical fiber ferrule is inserted in the fixed shell and is connected with the fixed shell and the sleeve in a matching manner.
3. The single fiber BOSA structure of claim 2, wherein the stationary shell is provided with a first annular protrusion, the first annular protrusion is connected with the flat square shaft end and is abutted against the base.
4. The single-fiber BOSA structure of claim 1, wherein the flat square shaft end comprises an arc portion and a limiting portion, the first light through hole comprises an arc surface and a plane, the arc surface is connected with two ends of the plane, the arc portion is matched with the arc surface, and the limiting portion is matched with the plane.
5. The single fiber BOSA structure of claim 1, wherein one end of the adjusting ring near the base is provided with a second annular protrusion, and the second annular protrusion abuts against the base.
6. The single fiber BOSA structure of claim 1, wherein said optical transmitter comprises:
the pipe sleeve is matched with the inner hole of the adjusting ring and can slide along the axial direction of the adjusting ring;
and one end of the laser diode is inserted in the pipe sleeve and is fixedly connected with the side surface of the pipe sleeve, and the laser diode and the pipe sleeve are coaxially arranged.
7. The single fiber BOSA structure of claim 6, wherein the laser diode comprises:
a tube holder;
the tube cap is arranged on one side of the tube seat, and the lens is embedded on one end, deviating from the tube seat, of the tube cap.
8. The single-fiber BOSA structure of claim 1, further comprising:
the 0-degree optical filter is arranged in the accommodating cavity, and the 0-degree optical filter is positioned between the light emitter and the 45-degree optical filter and is arranged opposite to the light emitter.
9. The single-fiber BOSA structure of claim 1, further comprising:
the isolator is arranged in the accommodating cavity, is positioned between the light emitter and the 45-degree light filter and is arranged opposite to the light emitter.
10. An optical communications device comprising the single fiber BOSA structure of any of claims 1-9.
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| CN202222079802.9U CN217981938U (en) | 2022-08-08 | 2022-08-08 | Single-fiber BOSA structure and optical communication device |
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| CN202222079802.9U CN217981938U (en) | 2022-08-08 | 2022-08-08 | Single-fiber BOSA structure and optical communication device |
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