CN214474083U - Single-side fiber-outgoing multichannel wavelength division multiplexer CWDM - Google Patents
Single-side fiber-outgoing multichannel wavelength division multiplexer CWDM Download PDFInfo
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- CN214474083U CN214474083U CN202023130398.0U CN202023130398U CN214474083U CN 214474083 U CN214474083 U CN 214474083U CN 202023130398 U CN202023130398 U CN 202023130398U CN 214474083 U CN214474083 U CN 214474083U
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Abstract
The utility model discloses a single-side fiber-outlet multichannel wavelength division multiplexer CWDM, which comprises a bottom plate, a light splitting component arranged on the bottom plate, an input collimator and an optical fiber collimator array which are arranged at the same side of the light splitting component; wherein, the input collimator is a single core; the light splitting assembly comprises a glass frame which forms an angle with the edge of the bottom plate and is fixedly attached to the bottom plate, a wedge angle sheet and an optical filter which are arranged on one side of the glass frame close to the input collimator, and a reflecting sheet which is far away from one side of the input collimator; the wedge angle sheet is opposite to the output end of the input collimator; the optical fiber collimator array comprises a lens array arranged corresponding to the optical filter and an optical fiber array corresponding to the lens array, and the optical fiber collimator array is a multi-core array; the utility model has simple structure, convenient installation, small occupied space and standardized material, and can realize the automatic debugging of the unilateral fiber output multi-channel light path; the trouble of independently debugging the collimator of each channel is avoided, and the requirement of batch production can be met.
Description
Technical Field
The embodiment of the utility model belongs to the technical field of optical communication device, more specifically relates to a unilateral fine multichannel wavelength division multiplexer CWDM that goes out.
Background
CWDM is a low cost WDM transmission technique oriented towards the metro network access layer. In principle, CWDM multiplexes optical signals with different wavelengths to a single optical fiber by using an optical multiplexer, and at a receiving end of a link, a mixed signal in the optical fiber is decomposed into signals with different wavelengths by using the optical demultiplexer, and the signals are connected to corresponding receiving equipment.
With the development of technology in the whole communication industry, the miniaturization and cost reduction of the optical passive device will continue to be an important trend of the technology development thereof, which is not only a demand from the development of the industry technology, but also an urgent demand from the market. As an effective scheme for increasing bandwidth capacity, wavelength division multiplexing technology widely uses a dielectric diaphragm scheme; in order to realize multi-channel and multi-port wavelength division multiplexing, a plurality of independently packaged three-port devices need to be cascaded, and the miniaturized wavelength division multiplexing cannot be realized by considering the internal fiber coiling space of the devices.
In order to realize miniaturized wavelength division multiplexing, a large-angle optical filter scheme is widely used, so that CWDM products are generally manufactured by adopting a process debugging method of a main optical path and an auxiliary optical path; however, the manufacturing method is complex in process, and the collimator of each channel needs to be independently debugged; secondly, the operation difficulty of the staff is high, and the batch production is not facilitated; therefore, there is an urgent need for an automated CWDM that has a simple structure, is easy to install, occupies a small space, and can achieve multi-channel common adjustment.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects or the improvement requirements in the prior art, the utility model provides a single-side fiber-outlet multichannel wavelength division multiplexer CWDM, which is characterized in that an optical fiber collimator array is arranged on one side of an optical filter, a reflector plate is arranged on the other side of the optical filter, and the reflection wavelength of the optical filter is reflected by the reflector plate, so that the same-direction output of transmission light is ensured; the multi-core optical fiber array and the multi-core lens array form a multi-core optical fiber collimator array, and multi-path transmission light is coupled by adjusting the multi-core collimator array, so that automatic debugging of a multi-channel light path is realized; the utility model has simple structure, convenient installation, small occupied space and standardized material, and can realize the common adjustment of single-side fiber outlet and multiple channels; compared with a plurality of single-core optical fiber collimators in the prior art, the trouble of independently debugging the collimator of each channel is avoided, and the requirement of batch production can be met.
In order to achieve the above object, the present invention provides a single-side fiber-output multichannel wavelength division multiplexer CWDM, which comprises a bottom plate, a light splitting assembly disposed on the bottom plate, an input collimator and an optical fiber collimator array disposed on the same side of the light splitting assembly; wherein the content of the first and second substances,
the input collimator is a single core;
the light splitting assembly comprises a glass frame arranged on the bottom plate, a wedge angle sheet and an optical filter which are arranged on one side, close to the input collimator and the optical fiber collimator array, of the glass frame, and a reflecting sheet which is arranged on one side, far away from the input collimator and the optical fiber collimator array, of the glass frame;
the fiber collimator array is a multi-core array.
Further, the wedge angle sheet is opposite to the output end of the input collimator.
Further, the glass frame is attached to the bottom plate and fixed at an angle to the edge of the bottom plate.
Further, the optical fiber collimator array comprises a lens array arranged corresponding to the position of the optical filter and an optical fiber array arranged corresponding to the position of the lens array.
Furthermore, the number of the optical filters, the lens array and the optical fiber array is equivalent and is all multiple.
Further, the optical filters are uniformly and alternately arranged on the glass frame.
Generally, through the utility model discloses above technical scheme who conceives compares with prior art, can gain following beneficial effect:
(1) the utility model discloses a unilateral goes out fine multichannel wavelength division multiplexer CWDM, through set up the fiber collimator array in one side of light filter, the opposite side sets up the reflector plate, reflects the reflection wavelength of light filter through the reflector plate to this syntropy output who guarantees the transmitted light; the multi-core optical fiber collimator array is formed by using the multi-core optical fiber array and the multi-core lens array, and multi-path transmission light is coupled by adjusting the multi-core collimator array, so that automatic debugging of a single-side fiber outlet multi-channel light path is realized; simple structure, the material is standardized, can realize the debugging automation, compares with current a plurality of single core fiber collimator, has removed the vexation of debugging alone to the collimator of every passageway from, can satisfy mass production's demand.
(2) The utility model discloses a unilateral goes out fine multichannel wavelength division multiplexer CWDM, assembles reflector plate, glass frame, light filter, wedge angle piece, bottom plate together, as an subassembly; assembling the optical fiber array and the lens array together to form another component; after the optical path coupling is carried out, the two components are assembled, and the device is simple in structure, convenient to install and high in practicability.
Drawings
Fig. 1 is a schematic structural diagram of a single-side fiber-outgoing multichannel wavelength division multiplexer CWDM according to an embodiment of the present invention;
fig. 2 is an exploded schematic view of an optical fiber collimator array of the single-side fiber-outgoing multichannel wavelength division multiplexer CWDM according to an embodiment of the present invention.
In all the figures, the same reference numerals denote the same features, in particular: 1-bottom plate, 2-input collimator, 3-wedge angle sheet, 4-reflector sheet, 5-optical fiber collimator array, 51-lens array, 52-optical fiber array, 6-optical filter and 7-glass frame.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
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.
Furthermore, the terms "first", "second", etc. 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", "second", etc. 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 limited otherwise.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "provided" are to be interpreted broadly, for example, as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
As shown in fig. 1 and fig. 2, the utility model provides a single-side fiber-outgoing multichannel wavelength division multiplexer CWDM, which comprises a bottom plate 1, a light splitting assembly arranged on the bottom plate 1, an input collimator 2 arranged on the same side of the light splitting assembly, and a fiber collimator array 5; the input collimator 2 is a single core and is used for integrating divergent incident light into collimated incident light; the optical fiber collimator array 5 is a multi-core array; the light splitting component is used for splitting the light passing through the input collimator 2 to the optical fiber collimator array 5, so that the automatic debugging of the single-side fiber-outlet multichannel CWDM is realized; the utility model discloses an unilateral fine multichannel wavelength division multiplexer CWDM that goes out, through set up the fiber collimator array in one side of light filter, the opposite side sets up the reflector plate, reflects the reflection wavelength of light filter through the reflector plate to this syntropy output that guarantees the transmitted light, through adjusting multicore collimator array, couples the multichannel transmitted light simultaneously, and then realizes the automatic debugging of unilateral fine multichannel light path that goes out; the utility model discloses simple structure, simple to operate, occupation space are little, the material is standardized, compare with a plurality of single core fiber collimator that have now, have removed the vexation of debugging alone to the collimator of every passageway from, can satisfy mass production's demand.
Further, as shown in fig. 1 and fig. 2, the light splitting assembly includes a bezel 7 disposed on the base plate 1, a wedge plate 3 disposed on the bezel 7, an optical filter 6, and a reflective sheet 5; the wedge angle sheet 3 and the optical filter 6 are arranged on one side, close to the input collimator 2 and the optical fiber collimator array 5, of the glass frame 7, so that the same-direction output of transmitted light is ensured; the reflector plate 4 is arranged on one side of the glass frame 7 far away from the input collimator 2 and the optical fiber collimator array 5; the wedge angle piece 3 is opposite to the output end of the input collimator 2, and the inclined plane of the wedge angle piece 3 is opposite to the optical filter 6; the wedge angle sheet 3 can deflect the incident light passing through the input collimator 2 and make the incident light reach the reflector sheet 4; the reflective sheet 4 may reflect the transmitted light via the wedge 3 and the filter 6; the optical filter 6 can output and couple the light with the specified wavelength passing through the optical filter into the corresponding collimator of the optical fiber collimator array 5, while the light with the other remaining wavelengths is continuously reflected to the adjacent optical filter through the reflector plate, and finally the light with the specified wavelength reaches the corresponding optical fiber collimator; the steps are circulated in such a way, so that single-side fiber output, light splitting multiplexing and automatic debugging are realized.
Further, as shown in fig. 1, the bezel 7 is attached to the bottom plate 1 and fixed at an angle to the edge of the bottom plate 1; the number of the optical filters 6 is preferably 8, and the optical filters include a first optical filter, a second optical filter and the like, wherein the first optical filter is adjacent to the wedge angle sheet, the second optical filter is adjacent to the first optical filter, and so on; the optical filters 6 are arranged on the glass frame 7 uniformly and at intervals.
Further, as shown in fig. 1 and fig. 2, the fiber collimator array 5 includes a lens array 51 disposed corresponding to the filter 6 and a fiber array 52 disposed corresponding to the lens array 51; the lens array 51 is used for collimating an incident light beam and focusing and coupling an emergent light beam; the lens array 51 and the optical fiber array 52 corresponding to the optical filter 6 are preferably 8-core arrays, the lens array 51 comprises a first lens and a second lens, and the optical fiber array 52 comprises a first optical fiber and a second optical fiber; the transmitted light with the specified wavelength passing through the optical filter is output to the lens array and finally reaches the corresponding optical fiber array through coupling; the first lens and the first optical fiber are combined to form a first collimator of the optical fiber collimator array 5, the second lens and the second optical fiber are combined to form a second collimator of the optical fiber collimator array 5, the first collimator corresponds to the first optical filter, the second collimator corresponds to the second optical filter, and so on; the utility model discloses a use 1 multicore fiber array and 1 multicore lens array to constitute multicore fiber collimator array, through adjusting multicore collimator array, couple multichannel transmitted light simultaneously, and then realize the automatic debugging of unilateral fine multichannel light path of play; the trouble of independently debugging the collimator of each channel is avoided, and the requirement of batch production can be met.
As shown in fig. 1 and fig. 2, the utility model provides a debugging method of unilateral outgoing fiber multichannel wavelength division multiplexer CWDM:
firstly, mounting a light splitting assembly on a bottom plate, specifically, firstly, attaching a glass frame to the bottom plate and fixing the glass frame and the bottom plate at an angle with a frame of the bottom plate, then sequentially mounting a wedge angle piece and an optical filter on one side of the glass frame and respectively fixing the wedge angle piece and the optical filter with the bottom plate; when the wedge angle piece is installed, the inclined plane of the wedge angle piece is back to the optical filter; a reflecting sheet is arranged on the other side of the glass frame and is fixed with the bottom plate;
secondly, fixing an input collimator on the bottom plate by using glue; the position of an input collimator is opposite to that of the wedge angle sheet;
thirdly, assembling the two optical assemblies of the optical fiber array and the lens array to form an optical fiber collimator array, and positioning and assembling the optical fiber collimator array and the bottom plate; and then clamping the optical fiber collimator array by using a clamp to directly carry out multi-channel joint debugging.
The utility model provides a pair of unilateral fine multichannel wavelength division multiplexer CWDM's theory of operation: incident light enters from the input collimator, and the angle of the incident light is deflected through the wedge angle sheet; the incident light with the angle deflection is reflected to a first optical filter through a reflector plate, and at the moment, the transmitted light with the first specified wavelength is coupled into a first collimator of the optical fiber collimator array after passing through the first optical filter; the reflected light with other wavelengths is reflected to a second optical filter through a reflector plate, and the transmitted light with a second specified wavelength is coupled into a second collimator of the optical fiber collimator array after passing through the second optical filter; and the like, and the steps are repeated circularly, so that the wavelength division multiplexing of the single-side fiber outlet CWDM is realized.
The utility model provides a unilateral goes out fine multichannel wavelength division multiplexer CWDM, through set up the fiber collimator array in one side of light filter, the opposite side sets up the reflector plate, reflects the reflection wavelength of light filter through the reflector plate to this syntropy output who guarantees the transmitted light; the multi-core optical fiber collimator array is formed by using the multi-core optical fiber array and the multi-core lens array, and multi-path transmission light is coupled by adjusting the multi-core collimator array, so that automatic debugging of a single-side fiber outlet multi-channel light path is realized; the utility model discloses simple structure, simple to operate, occupation space are little, the material is standardized, compare with a plurality of single core fiber collimator that have now, have removed the vexation of debugging alone to the collimator of every passageway from, can satisfy mass production's demand.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included within the scope of the present invention.
Claims (6)
1. The utility model provides a unilateral goes out fine multichannel wavelength division multiplexer CWDM which characterized in that: the optical fiber collimator comprises a bottom plate (1), a light splitting assembly arranged on the bottom plate (1), an input collimator (2) and an optical fiber collimator array (5) which are arranged on the same side of the light splitting assembly; wherein the content of the first and second substances,
the input collimator (2) is a single core;
the light splitting assembly comprises a glass frame (7) arranged on the bottom plate (1), a wedge angle sheet (3) and a light filter (6) which are arranged on one side, close to the input collimator (2) and the optical fiber collimator array (5), of the glass frame (7), and a reflection sheet (4) which is far away from one side, close to the input collimator (2) and the optical fiber collimator array (5);
the optical fiber collimator array (5) is a multi-core array.
2. The single-side fiber-exiting multichannel wavelength division multiplexer (CWDM) of claim 1, wherein: the wedge angle piece (3) is opposite to the output end of the input collimator (2).
3. The single-side fiber-exiting multichannel wavelength division multiplexer (CWDM) of claim 2, wherein: the glass frame (7) is attached to the bottom plate (1) and fixed to the edge of the bottom plate (1) at an angle.
4. The single-side fiber-outlet multichannel wavelength division multiplexer (CWDM), according to any one of claims 1-3, wherein: the optical fiber collimator array (5) comprises a lens array (51) arranged corresponding to the position of the optical filter (6) and an optical fiber array (52) arranged corresponding to the position of the lens array (51).
5. The single-side fiber-exiting multichannel wavelength division multiplexer (CWDM) of claim 4, wherein: the number of the optical filters (6), the lens array (51) and the optical fiber array (52) is equivalent and is multiple.
6. The single-side fiber-exiting multichannel wavelength division multiplexer CWDM according to any one of claims 1, 2, 3 and 5, wherein: the optical filters (6) are uniformly and alternately arranged on the glass frame (7).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116449495A (en) * | 2022-01-06 | 2023-07-18 | 波若威科技股份有限公司 | Optical device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN116449495A (en) * | 2022-01-06 | 2023-07-18 | 波若威科技股份有限公司 | Optical device |
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