CN110572212B - Bundling packaged wavelength division multiplexer - Google Patents
Bundling packaged wavelength division multiplexer Download PDFInfo
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- CN110572212B CN110572212B CN201910912530.6A CN201910912530A CN110572212B CN 110572212 B CN110572212 B CN 110572212B CN 201910912530 A CN201910912530 A CN 201910912530A CN 110572212 B CN110572212 B CN 110572212B
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- wavelength division
- division multiplexing
- multiplexing device
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
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- Computer Networks & Wireless Communication (AREA)
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- Optics & Photonics (AREA)
- Optical Communication System (AREA)
Abstract
The invention provides a bundling packaging wavelength division multiplexer, comprising: the device comprises a framework, a plurality of installation grooves are distributed on the periphery of the framework, wavelength division multiplexing devices are installed in the installation grooves, and the wavelength division multiplexing devices are distributed in a circumferential manner; the first wavelength division multiplexing device and the second wavelength division multiplexing device which are positioned on two end points with the same diameter on the circumference are cascaded to form a wavelength division multiplexing device group, and the bending radius of an optical fiber connected between the second wavelength division multiplexing device and the wavelength division multiplexing device at the lower stage is larger than the minimum bending radius of the optical fiber; the first port of each wavelength division multiplexing device in the plurality of wavelength division multiplexing devices is connected with an optical fiber; and the second port of the first wavelength division multiplexing device group in the plurality of wavelength division multiplexing devices is connected with the public channel optical fiber. The cluster packaging wavelength division multiplexer provided by the invention has the advantages of small appearance volume and strong adaptability to the installation environment, and does not need to be installed through a special rack or a case shell.
Description
Technical Field
The invention relates to the technical field of optical fiber communication, in particular to a cluster packaging wavelength division multiplexer.
Background
The wavelength division multiplexer has two kinds of packages, one is box-type package, leading out tail fiber structure; the other type is a plug-in type package, and the optical port structure is provided with an adapter. The wavelength division multiplexers of the two packaging structures are both square appearance structures, the size is large, the required installation space is also large, the use scenes of the wavelength division multiplexers are all required to be installed through a special installation rack or box body (for example, the wavelength division multiplexers are installed in a fixed shell or rack for use), and the installation is not flexible enough. Especially, in some cabinets with limited installation space, the installation space of the main equipment needs to be sacrificed to meet the installation requirement of the wavelength division multiplexer.
Disclosure of Invention
The invention provides a cluster packaging wavelength division multiplexer, and aims to solve the problems that the wavelength division multiplexer is large in size and not flexible to mount and needs to be mounted through a special rack or a case shell.
In order to achieve the above object, an embodiment of the present invention provides a bundle package wavelength division multiplexer, including:
the wavelength division multiplexing device comprises a framework, wherein a plurality of mounting grooves parallel to the axis of the framework are distributed on the periphery of the framework, wavelength division multiplexing devices are mounted in the mounting grooves, and the plurality of wavelength division multiplexing devices are distributed on the cross section of the framework in a circumferential manner;
the first wavelength division multiplexing device and the second wavelength division multiplexing device which are positioned on two end points with the same diameter on the circumference are cascaded to form a wavelength division multiplexing device group, and the bending radius of an optical fiber connected between the second wavelength division multiplexing device and the lower-level wavelength division multiplexing device of the second wavelength division multiplexing device is larger than the minimum bending radius of the optical fiber;
the first port of each wavelength division multiplexing device in the plurality of wavelength division multiplexing devices is connected with an optical fiber, and the wavelengths of the optical fibers connected with the first ports of the wavelength division multiplexing devices are different; and the second port of the first wavelength division multiplexing device group in the plurality of wavelength division multiplexing devices is connected with the public channel optical fiber.
Wherein, the wavelength division multiplexer is packaged to the bundling still includes: the shell is sleeved outside the framework.
Wherein, the wavelength division multiplexer is packaged to the bundling still includes: and the tail cover is sleeved outside the optical fibers for cascading the plurality of wavelength division multiplexing devices and is connected with the shell.
Wherein the tail cap is connected to an end of the housing proximate the common channel fiber.
Wherein the tail cap is connected with one end of the outer shell close to the public channel optical fiber through threads.
And the public channel optical fiber and each optical fiber connected with the first port of each wavelength division multiplexing device are provided with optical fiber connectors.
Wherein the cross section of the framework is circular.
Wherein the housing is cylindrical.
Wherein, the mounting groove is semicircular.
Wherein, it is a plurality of mounting groove evenly distributed in on the periphery of skeleton.
The scheme of the invention has at least the following beneficial effects:
in the embodiment of the invention, on the cross section of the framework, a plurality of wavelength division multiplexing devices are distributed in a circle, a first wavelength division multiplexing device and a second wavelength division multiplexing device which are positioned on two end points with the same diameter of the circle are cascaded to form a wavelength division multiplexing device group, and the bending radius of an optical fiber connected between the second wavelength division multiplexing device and a lower wavelength division multiplexing device is larger than the minimum bending radius of the optical fiber, namely, the cascade connection among the plurality of wavelength division multiplexing devices adopts a diagonal cross-connection mode, and all the wavelength division multiplexing devices are arranged in a bundling way, so that the whole wavelength division multiplexing device has small appearance volume and strong installation environment adaptability, can be directly placed in a wire slot without being installed through a special rack or a rack case, or can be simply bundled and fixed on any rack structural member through a wire harness, is convenient for installing various scenes, and can avoid the problem of extra loss caused by small bending of the optical fiber due to overcrowding inside the wavelength division multiplexing device at the .
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments of the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic diagram of an internal structure of a bundle package wavelength division multiplexer according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an appearance structure of a wavelength division multiplexer with bundle encapsulation according to an embodiment of the present invention;
FIG. 3 is a diagram showing arrangement and connection of WDM devices in an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a skeleton in an embodiment of the present invention.
[ description of reference ]
101. A framework; 102. mounting grooves; 103. a wavelength division multiplexing device; 104. an optical fiber; 105. a common channel optical fiber; 106. an optical fiber connector; 107. a housing; 108. and a tail cover.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and is therefore not to be construed as limiting the invention.
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 invention, "a plurality" means two or more unless specifically defined otherwise.
As shown in fig. 1 to 4, an embodiment of the present invention provides a bundle package wavelength division multiplexer, including: the structure comprises a framework 101, wherein a plurality of installation grooves 102 parallel to the axis of the framework 101 are distributed on the periphery of the framework 101, wavelength division multiplexing devices 103 are installed in the installation grooves 102, and the wavelength division multiplexing devices 103 are distributed circumferentially on the cross section of the framework 101.
The first wavelength division multiplexing device and the second wavelength division multiplexing device which are positioned on two end points with the same diameter on the circumference are cascaded to form a wavelength division multiplexing device group, and the bending radius of an optical fiber connected between the second wavelength division multiplexing device and the lower-level wavelength division multiplexing device of the second wavelength division multiplexing device is larger than the minimum bending radius of the optical fiber.
The cascading manner of the wavelength division multiplexing devices mounted on the outer periphery of the backbone 101 is further explained herein with reference to fig. 3. In fig. 3, a circle represents a wavelength division multiplexing device, the numbers in the circle are numbered for convenience of description, wherein two circles of numbers 1 and 2 are a wavelength division multiplexer group and a first level wavelength division multiplexer group in a plurality of wavelength division multiplexing devices, two circles of numbers 3 and 4 are a wavelength division multiplexer group, and so on, two circles of numbers 5 and 6 are a wavelength division multiplexer group, two circles of numbers 7 and 8 are a wavelength division multiplexer group, two circles of numbers 9 and 10 are a wavelength division multiplexer group, two circles of numbers 11 and 12 are a wavelength division multiplexer group, and these wavelength division multiplexer groups are cascaded in sequence.
Generally speaking, the cascade connection among the multiple wavelength division multiplexing devices 103 adopts a diagonal cross connection line mode, so that the whole wavelength division multiplexing device has small appearance volume and strong installation environment adaptability, can be directly placed in a wire slot without being installed through a special frame or a case shell, or can be simply tied up and fixed on any frame structural member through a wire harness, and is convenient for installation of various scenes. As shown in fig. 3, the optical signal enters from the wavelength division multiplexing device numbered 1, and then is reflected in order to the wavelength division multiplexing device numbered 2, the wavelength division multiplexing device numbered 3, the wavelength division multiplexing device numbered 4, the wavelength division multiplexing device numbered 5, the wavelength division multiplexing device numbered 6, the wavelength division multiplexing device numbered 7, the wavelength division multiplexing device numbered 8, the wavelength division multiplexing device numbered 9, the wavelength division multiplexing device numbered 10, the wavelength division multiplexing device numbered 11, and the wavelength division multiplexing device numbered 12, and is reflected from the wavelength division multiplexing device numbered 12.
As shown in fig. 1 and fig. 2, the first port of each wavelength division multiplexing device 103 in the plurality of wavelength division multiplexing devices 103 is connected to an optical fiber 104, and the wavelengths of the optical fibers 104 connected to the first ports of the wavelength division multiplexing devices 103 are different; the second port of the first wavelength division multiplexing device group among the plurality of wavelength division multiplexing devices 103 is connected to the common channel fiber 105. The second ports of the wavelength division multiplexing devices 103 except the first wavelength division multiplexing device connected to the common channel fiber 105 are all connected to the upper wavelength division multiplexing device of the wavelength division multiplexing device.
The common channel fiber 105 is a multiplexed common fiber channel fiber; each optical fiber 104 connected to the first port of each wavelength division multiplexing device 103 is an optical fiber of each different wavelength after demultiplexing so as to realize the function of a wavelength division multiplexer.
Next, the operation principle of the bundle package wavelength division multiplexer will be explained.
Wherein each of the wavelength division multiplexing devices 103 of the plurality of wavelength division multiplexing devices 103 has the same structure. Specifically, the wavelength division multiplexing device is mainly formed by packaging a quartz tube, and a double-channel tail fiber head, a self-focusing lens, an optical filter, a collimator and a single-channel tail fiber head are arranged in the wavelength division multiplexing device. The double-channel tail fiber head is positioned at one end in the quartz tube, one end of the double-channel tail fiber head is in an inclined plane and is bonded with the self-focusing lens, and the other end of the self-focusing lens is bonded with the optical filter. The other end in the quartz tube is provided with a single-channel tail fiber head, and one end of the tail fiber head is an inclined plane and is bonded with the collimator together for receiving optical signals transmitted by the optical filter. When light signals with different wavelengths enter from the incident optical fiber of the double-channel tail fiber head, the light signals pass through the self-focusing lens and then strike the optical filter, if the wavelengths are the wavelengths set by the optical filter, the light signals can be transmitted to the rear end and then enter the single-channel tail fiber head through the collimator, and the filtering function is completed. If the optical signal is not the optical signal with the wavelength set by the optical filter, the optical signal is reflected into the reflection optical fiber of the dual-channel tail fiber head and enters a common channel. It can be understood that the wavelength division multiplexing device in the embodiment of the present invention may adopt an existing wavelength division multiplexing device, and therefore, in order to avoid repetition, the detailed structure of the wavelength division multiplexing device is not described in too much detail.
Further, each of the wavelength division multiplexing devices 103 in the plurality of wavelength division multiplexing devices 103 mainly has a transmission function and a reflection function, and when the wavelength of the optical signal transmitted through the common channel fiber 105 is the wavelength designated by the wavelength division multiplexing device (i.e., the first wavelength division multiplexing device connected to the common channel fiber 105), the optical signal can be directly transmitted into the optical channel at the rear end for down-transmission (i.e., down-transmission through the optical fiber 104 connected to the wavelength division multiplexing device). When the wavelength of the optical signal coming from the common channel fiber 105 is not the wavelength specified by the wavelength division multiplexing device (i.e., the first wavelength division multiplexing device connected to the common channel fiber 105), the optical signal is reflected back to the common channel and enters the next wavelength division multiplexing device (i.e., the next wavelength division multiplexing device of the wavelength division multiplexing device), and so on until the optical signal enters the corresponding filtering channel.
It should be noted that, after the optical signal coming from the common channel fiber 105 enters the first wavelength division multiplexing device (i.e. the first wavelength division multiplexing device of the first wavelength division multiplexing device group) and passes through the filter, if the optical signal is a wavelength signal corresponding to the wavelength division multiplexing device, the optical signal will be transmitted through to the first port of the wavelength division multiplexing device. If the wavelength of the signal is not the signal corresponding to the wavelength division multiplexing device, the signal is reflected to the third port of the wavelength division multiplexing device (the third port is connected with the third port), enters into the reflecting optical fiber (the reflecting optical fiber is connected with the second port of the next wavelength division multiplexing device of the wavelength division multiplexing device), and the optical signal is filtered again by the next wavelength division multiplexing device. And so on until transmitted by the wavelength division multiplexing device of the corresponding wavelength.
As shown in fig. 2, in an embodiment of the present invention, the common channel optical fiber 105 and each optical fiber 104 connected to the first port of each wavelength division multiplexing device are provided with an optical fiber connector 106, so that when in use, the bundle-encapsulated wavelength division multiplexing device can be directly connected to the optical port of a using device through these optical fiber connectors 106, and it is not necessary to perform switching through a jumper wire, thereby saving installation time, and also reducing connection points of a link and reducing insertion loss of a line.
In an embodiment of the present invention, as shown in fig. 1 and fig. 2, the bundle-encapsulated wavelength division multiplexer further includes an outer shell 107 sleeved outside the frame 101, where the outer shell 107 is mainly used for encapsulating the wavelength division multiplexing devices 103 on the frame 101, and the wavelength division multiplexing devices 103 are arranged in the outer shell 107 in a bundle shape, and certainly, since the wavelength division multiplexing devices 103 are cascaded in a diagonal cross-connection manner as shown in fig. 3, the problem that the bending radius of the optical fiber is too small due to too short distance between adjacent devices after the bundle arrangement of the wavelength division multiplexing devices 103 inside can be effectively solved. The purpose of small package appearance volume can be achieved, and the increase of the insertion loss value of the wavelength division multiplexer caused by the undersize bending radius of the internal optical fiber can be avoided.
As a preferred example, the housing 107 may have a cylindrical shape, so that the overall product has a cylindrical shape, thereby facilitating installation of various scenes.
As shown in fig. 4, the cross section of the frame 101 is circular, and the mounting groove 102 on the outer circumference of the frame 101 is semicircular, so that the wavelength division multiplexing device can be conveniently mounted, and the product can be integrally packaged. It should be understood that, in the embodiment of the present invention, the specific shapes of the framework 101 and the mounting groove 102 are not limited. As a preferred example, the mounting grooves 102 are uniformly distributed on the outer periphery of the frame 101, so as to cascade the wavelength division multiplexing devices mounted in the mounting grooves 102 in a diagonal cross-connection manner.
As shown in fig. 1 and fig. 2, in an embodiment of the present invention, the bundle-encapsulated wavelength division multiplexer further includes: and the tail cover 108, the tail cover 108 is sleeved outside the optical fiber for cascading the plurality of wavelength division multiplexing devices 103, and the tail cover 108 is connected with the shell 107. Specifically, the tail cap 108 is connected to an end of the housing 107 near the common channel fiber 105.
The tail cap 108 is mainly used to protect the optical fibers for cascading the wavelength division multiplexing devices 103 from being damaged, and also assists the housing 107 to complete the packaging.
Optionally, in an embodiment of the present invention, the tail cap 108 may be threadably connected to an end of the housing 107 proximate to the common channel fiber 105. It is understood, of course, that in embodiments of the present invention, the connection between tail cap 108 and housing 107 is not limited.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (9)
1. A bundle encapsulated wavelength division multiplexer, comprising:
the cross section of the framework is circular, a plurality of mounting grooves parallel to the axis of the framework are distributed on the periphery of the framework, wavelength division multiplexing devices are mounted in the mounting grooves, and the plurality of wavelength division multiplexing devices are distributed on the cross section of the framework in a circumferential manner;
the first wavelength division multiplexing device and the second wavelength division multiplexing device which are positioned on two end points with the same diameter on the circumference are cascaded to form a wavelength division multiplexing device group, and the bending radius of an optical fiber connected between the second wavelength division multiplexing device and the lower-level wavelength division multiplexing device of the second wavelength division multiplexing device is larger than the minimum bending radius of the optical fiber;
the first port of each wavelength division multiplexing device in the plurality of wavelength division multiplexing devices is connected with an optical fiber, and the wavelengths of the optical fibers connected with the first ports of the wavelength division multiplexing devices are different; and the second port of the first wavelength division multiplexing device group in the plurality of wavelength division multiplexing devices is connected with the public channel optical fiber.
2. The bundled package wavelength division multiplexer according to claim 1, further comprising: the shell is sleeved outside the framework.
3. The bundled package wavelength division multiplexer according to claim 2, further comprising: and the tail cover is sleeved outside the optical fibers for cascading the plurality of wavelength division multiplexing devices and is connected with the shell.
4. The bundle package wavelength division multiplexer according to claim 3, wherein the tail cap is connected to an end of the housing proximate the common channel fiber.
5. The bundle package wavelength division multiplexer according to claim 4, wherein the tail cap is threadably connected to an end of the housing proximate the common channel fiber.
6. The bundle-in-package wavelength division multiplexer according to claim 1, wherein the common channel optical fiber and each optical fiber connected to the first port of each wavelength division multiplexing device are provided with an optical fiber connector.
7. The bundle encapsulated wavelength division multiplexer according to claim 2 wherein said housing is cylindrical.
8. The bundle package wavelength division multiplexer according to claim 1, wherein the mounting slot is semicircular.
9. The bundle package wavelength division multiplexer according to claim 1, wherein a plurality of the mounting grooves are uniformly distributed on an outer circumference of the backbone.
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| CN201910912530.6A CN110572212B (en) | 2019-09-25 | 2019-09-25 | Bundling packaged wavelength division multiplexer |
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| CN201910912530.6A CN110572212B (en) | 2019-09-25 | 2019-09-25 | Bundling packaged wavelength division multiplexer |
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| CN110572212B true CN110572212B (en) | 2021-01-01 |
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