CN220121030U - Miniaturized multichannel unilateral fiber-emitting CCWDM module - Google Patents

Abstract

The utility model provides a miniaturized multichannel unilateral fiber-emitting CCWDM module, which comprises a box body, wherein a fixing frame is arranged in the box body, the box body is scraped into a light-emitting cavity and a light-receiving cavity through the fixing frame, a light-entering collimator and a first light-dividing component are arranged on the upper side of the fixing frame, a light-emitting collimator and a second light-dividing component are arranged on the lower side of the fixing frame, a right-angle prism is arranged on the front side of the fixing frame, light rays emitted by the light-entering collimator pass through the first light-dividing component and then are reflected into the light-receiving cavity through the right-angle prism, and the second light-dividing component receives the transmitted light rays and transmits the light rays to the light-emitting collimator so as to realize that light-entering and light-emitting are positioned on the same side face of the box body. Specifically, the light inlet collimator, the first light splitting component, the light outlet collimator, the second light splitting component and the right-angle prism are integrated on the fixing frame, so that the CCWDM module is small in size; the light inlet and the light outlet are positioned on the same side face of the box body, so that the wavelength division multiplexing function is realized, and the high-speed receiving and transmitting are realized.

Description

Miniaturized multichannel unilateral fiber-emitting CCWDM module

Technical Field

The utility model relates to the technical field of optical fiber communication, in particular to a miniaturized multichannel single-side fiber-output CCWDM module.

Background

Optical fiber communication technology has been vigorously developed, and in order to better utilize bandwidth resources in optical fibers, a wavelength division multiplexing (WDM, wave-Division Multiplexing) system has been widely used in communication systems. The division multiplexing technique is a technique for doubling the transmission capacity in the same optical fiber. The wavelength division multiplexing technique is implemented by multiplexing and de-multiplexing. The traditional wavelength division multiplexer and demultiplexer are composed of a single-fiber collimator, a filter, a double-fiber collimator and an outer packaging tube, and the device can only complete multiplexing or demultiplexing functions. If the multiplexing and demultiplexing functions are required to be realized in practical application, two devices are required to be realized together, and the multiplexer and the demultiplexer are generally packaged in a shell, so that the integration of the wavelength division multiplexing system is not facilitated due to the large packaging size. In the prior art, a CCWDM multiplexer is developed according to the defects, the English full name of the CCWDM is Compact Coarse Wavelength Division Multiplexer, but the existing CCWDM multiplexer still has large size, high loss, complex optical structure and incapability of outputting fiber from one side.

Therefore, further improvements are needed.

Disclosure of Invention

Based on the above, the utility model aims to provide a miniaturized multichannel single-side fiber-outputting CCWDM module which has small size and single-side fiber outputting and realizes high-speed receiving and transmitting.

The utility model provides a single-sided fine CCWDM module that goes out of miniaturized multichannel according to this purpose design, includes the box body, be equipped with the mount in the box body, the box body passes through the mount is scraped and is divided into light-emitting cavity and light receiving cavity, the mount upside is equipped with light-in collimator and first beam splitter assembly, the mount downside is equipped with light-emitting collimator and second beam splitter assembly, be equipped with right angle prism on the mount front side, the light that light-in collimator was emergent passes through behind the first beam splitter assembly passes through right angle prism reflection to in the light receiving cavity, the second beam splitter assembly receives the light that the transmission was come and transmits to light-emitting collimator, so as to realize light-in and light-out be located the same side of box body.

And a clearance gap for avoiding the corner of the right-angle prism is formed in the fixing frame.

The fixing frame is provided with a protruding portion for clamping the left and right side walls of the right-angle prism, and the protruding portion is in butt joint with the left and right side walls of the right-angle prism.

The right-angle prism is provided with a reflecting plane, a first reflecting inclined plane and a second reflecting inclined plane, and light rays emitted by the light inlet collimator are sequentially transmitted to the second light splitting component from the reflecting plane, the first reflecting inclined plane and the first reflecting inclined plane.

The light inlet collimator is arranged on the upper side of the fixing frame, a first groove used for fixing the light inlet collimator is arranged on the first groove through bonding, a second groove used for fixing the light outlet collimator is arranged on the lower side of the fixing frame, and the light outlet collimator is arranged on the second groove through bonding.

The first light splitting assembly comprises a plurality of first reflectors and a plurality of first filter plates, wherein the first reflectors are in one-to-one correspondence with the light inlet aligners and are vertically arranged on the upper side of the fixing frame; the first filter plates are arranged in a plurality of rows, and the first filter plates are obliquely arranged on the fixing frame in a plurality of rows.

The second light splitting assembly comprises a plurality of second reflectors and second filter plates, wherein the second reflectors are in one-to-one correspondence with the light emitting aligners and are vertically arranged on the lower side of the fixing frame; the second filter plates are arranged in a plurality of rows, and the second filter plates are obliquely arranged below the fixing frame in a plurality of rows.

The first reflecting mirror and the second reflecting mirror are respectively in right triangle shapes.

The fixing frame is of an integrated structure.

The box body comprises a bottom shell and a cover body which covers the opening of the bottom shell, a stepped groove is formed in the position of the opening of the top of the bottom shell, and when the cover body covers the stepped groove, the cover body and the bottom shell are in the same horizontal plane.

The miniaturized multichannel unilateral fiber-emitting CCWDM module comprises a box body, a fixing frame is arranged in the box body, the box body is scraped into a light-emitting cavity and a light-receiving cavity through the fixing frame, a light-entering collimator and a first light-dividing component are arranged on the upper side of the fixing frame, a light-emitting collimator and a second light-dividing component are arranged on the lower side of the fixing frame, a right-angle prism is arranged on the front side of the fixing frame, light emitted by the light-entering collimator passes through the first light-dividing component and then is reflected into the light-receiving cavity through the right-angle prism, and the second light-dividing component receives the transmitted light and transmits the transmitted light to the light-emitting collimator so as to realize that the light entering and the light exiting are located on the same side face of the box body. Specifically, the light inlet collimator, the first light splitting component, the light outlet collimator, the second light splitting component and the right-angle prism are integrated on the fixing frame, so that the CCWDM module is small in size; the light entering the light collimator emits incident light to pass through the first light splitting component, the first light splitting component enables light with corresponding wavelength to penetrate, the transmitted light is reflected to the second light splitting component through the right-angle prism, and the second light splitting component transmits the light to the light exiting collimator so as to enable the light entering and the light exiting to be located on the same side face of the box body, further achieve a wavelength division multiplexing function and achieve high-speed receiving and transmitting.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic overall structure of an embodiment of the present utility model.

Fig. 2 is a cross-sectional view of the overall structure of an embodiment of the present utility model.

FIG. 3 is an exploded view of the overall structure of an embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a fixing frame according to an embodiment of the utility model.

Fig. 5 is a schematic diagram of an assembly structure of a fixing frame, a right angle prism, an optical input collimator and a first light splitting component according to an embodiment of the present utility model.

Fig. 6 is a schematic diagram of an assembly structure of a fixing frame, a right angle prism, a light-emitting collimator and a second light splitting component according to an embodiment of the utility model.

The correspondence between the reference numerals and the component names in fig. 1 to 6 is:

1-box body, 101-light emergent cavity, 102-light receiving cavity, 103-bottom shell, 104-cover body, 2-fixing frame, 201-avoidance space, 202-protruding part, 3-light inlet collimator, 4-first light splitting component, 401-first reflector, 402-first filter, 5-light emergent collimator, 6-second light splitting component, 601-second reflector, 602-second filter, 7-right angle prism, 701-reflection plane, 702-first reflection inclined plane and 703-second reflection inclined plane.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

As shown in fig. 1-3, a miniaturized multichannel single-side fiber-emitting CCWDM module is provided, which comprises a box body 1, a fixing frame 2 is arranged in the box body 1, the box body 1 is scraped and divided into a light-emitting cavity 101 and a light-receiving cavity 102 by the fixing frame 2, a light-in collimator 3 and a first light-splitting component 4 are arranged on the upper side of the fixing frame 2, a light-emitting collimator 5 and a second light-splitting component 6 are arranged on the lower side of the fixing frame 2, a right-angle prism 7 is arranged on the front side of the fixing frame 2, light emitted by the light-in collimator 3 passes through the first light-splitting component 4 and then is reflected into the light-receiving cavity 102 by the right-angle prism 7, and the second light-splitting component 6 receives the transmitted light and transmits the light to the light-emitting collimator 5 so as to realize that the light-in and the light-out are positioned on the same side of the box body 1.

Specifically, the light inlet collimator 3, the first light splitting component 4, the light outlet collimator 5, the second light splitting component 6 and the right-angle prism 7 are integrated on the fixed frame 2, so that the CCWDM module is small in size and high-speed receiving and transmitting are realized; the light entering collimator 3 emits incident light to pass through the first light splitting component 4, the first light splitting component 4 transmits light with corresponding wavelength, the transmitted light is reflected to the second light splitting component 6 through the right-angle prism 7, and the second light splitting component 6 transmits the light to the light emitting collimator 5 so as to realize that the light entering and the light emitting are positioned on the same side face of the box body 1, further realize the wavelength division multiplexing function and realize high-speed receiving and transmitting.

It should be noted that, the light-in collimator 3 emits incident light in the light-out cavity 101, and the transmitted light is reflected into the light-receiving cavity 102 by the right-angle prism 7, so as to realize that the light is reflected into the second light-splitting component 6 in the light-receiving cavity 102, and the second light-splitting component 6 transmits the light to the light-out collimator 5.

Further, as shown in fig. 4-6, in order to better fix the rectangular prism 7 and avoid the corner collapse problem of the rectangular prism 7, the fixing frame 2 is provided with a clearance space 201 for avoiding the corner of the rectangular prism 7.

Further, the fixing frame 2 is provided with a protrusion 202 for clamping the left and right side walls of the rectangular prism 7, and the protrusion 202 is abutted against the left and right side walls of the rectangular prism 7.

Specifically, in order to better fix the rectangular prism 7, the protruding portion 202 is adhered to the left and right sidewalls of the rectangular prism 7 by glue, so as to achieve close adhesion between the protruding portion 202 and the rectangular prism 7.

Further, as shown in fig. 2, the right angle prism 7 is provided with a reflection plane 701, a first reflection inclined plane 702 and a second reflection inclined plane 703, and the light emitted from the light incoming collimator 3 is transmitted to the second beam splitter 6 from the reflection plane 701, the first reflection inclined plane 702 and the first reflection inclined plane 702 in sequence.

Further, as shown in fig. 2 and fig. 4-6, a first groove 203 for fixing the light-entering collimator 3 is provided on the upper side of the fixing frame 2, the light-entering collimator 3 is mounted on the first groove 203 by bonding, a second groove 204 for fixing the light-exiting collimator 5 is provided on the lower side of the fixing frame 2, and the light-exiting collimator 5 is mounted on the second groove 204 by bonding.

Further, as shown in fig. 5, the first light splitting assembly 4 includes a plurality of first reflectors 401 and a first filter 402, where the plurality of first reflectors 401 are in one-to-one correspondence with the light-entering collimator 3, and are vertically arranged on the upper side of the fixing frame 2; the first filters 402 are arranged in a plurality of rows, and the first filters 402 in the plurality of rows are obliquely arranged on the fixing frame 2.

The number of the first reflecting mirrors 401 and the first filter plates 402 corresponds to the number of the light-entering aligners 3.

Further, as shown in fig. 6, the second light splitting component 6 includes a plurality of second reflectors 601 and a second filter 602, where the plurality of second reflectors 601 are in one-to-one correspondence with the light emitting aligners 5, and are vertically arranged on the lower side of the fixing frame 2; the second filters 602 are arranged in a plurality of rows, and the second filters 602 in the plurality of rows are obliquely arranged under the fixed frame 2.

The number of the second reflecting mirrors 601 and the second filters 602 corresponds to the number of the light emitting aligners 5.

Further, as shown in fig. 5 and 6, the first mirror 401 and the second mirror 601 have right triangles, respectively.

Further, the fixing frame 2 is an integrally formed structure. The fixing frame 2 with an integrated structure has simple manufacturing process and low production cost.

Further, as shown in fig. 2 and 3, the case 1 includes a bottom case 103 and a cover 104 covering an opening of the bottom case 103, a step groove 1031 is provided at a top opening of the bottom case 103, and when the cover 104 is covered on the step groove 1031, the cover 104 and the bottom case 103 are in the same horizontal plane, so as to further provide overall appearance aesthetic property.

Further, the light-in collimator 3 and the light-out collimator 5 each comprise a glass tube, a capillary tube fixed at one end in the glass tube, a lens fixed at the other end in the glass tube, and an optical fiber inserted into the capillary tube.

Specifically, a fiber outlet hole through which the optical fiber passes is formed in one side arm of the box body 1.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

It will be further understood that when interpreting the connection or positional relationship of elements, although not explicitly described, the connection and positional relationship are to be interpreted as including the range of errors that should be within an acceptable range of deviations from the particular values as determined by those skilled in the art. For example, "about," "approximately," or "substantially" may mean within one or more standard deviations, and is not limited herein.

The technical features of the above embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a single side play fine CCWDM module of miniaturized multichannel, includes box body (1), its characterized in that: be equipped with mount (2) in box body (1), box body (1) pass through mount (2) are scraped and are divided into light-emitting cavity (101) and light-receiving cavity (102), mount (2) upside is equipped with light-in collimator (3) and first beam splitter assembly (4), mount (2) downside is equipped with light-out collimator (5) and second beam splitter assembly (6), be equipped with right angle prism (7) on mount (2) front side, the light of light-in collimator (3) outgoing passes through behind first beam splitter assembly (4) passes through right angle prism (7) reflection to in light-receiving cavity (102), light that second beam splitter assembly (6) received the transmission and transmitted light-out collimator (5) to realize light-in and light-out be located the same side of box body (1).

2. The miniaturized multichannel single-side fiber-out CCWDM module of claim 1, wherein: and a clearance gap (201) for avoiding the corners of the right-angle prism (7) is formed in the fixing frame (2).

3. The miniaturized multichannel single-side fiber-out CCWDM module of claim 1, wherein: the fixing frame (2) is provided with a protruding portion (202) used for clamping the left side wall and the right side wall of the right-angle prism (7), and the protruding portion (202) is abutted to the left side wall and the right side wall of the right-angle prism (7).

4. The miniaturized multichannel single-side fiber-out CCWDM module of claim 1, wherein: the right angle prism (7) is provided with a reflecting plane (701), a first reflecting inclined plane (702) and a second reflecting inclined plane (703), and light rays emitted by the light inlet collimator (3) are sequentially transmitted to the second light splitting component (6) from the reflecting plane (701), the first reflecting inclined plane (702) and the first reflecting inclined plane (702).

5. The miniaturized multichannel single-side fiber-out CCWDM module of claim 1, wherein: the fixing frame (2) upside is equipped with and is used for fixing advance light and aim at first recess (203) of ware (3), advance light and aim at ware (3) through the bonding and install on first recess (203), fixing frame (2) downside is equipped with and is used for fixing go out light and aim at second recess (204) of ware (5), go out light and aim at ware (5) through the bonding and install on second recess (204).

6. The miniaturized multichannel single-side fiber-out CCWDM module of claim 1, wherein: the first light splitting assembly (4) comprises a plurality of first reflectors (401) and first filter plates (402), wherein the first reflectors (401) are in one-to-one correspondence with the light inlet aligners (3) and are vertically arranged on the upper side of the fixing frame (2); the first filter plates (402) are arranged in a plurality of rows, and the first filter plates (402) are obliquely arranged on the fixing frame (2) in a plurality of rows.

7. The miniaturized multichannel single-side fiber-out CCWDM module of claim 6, wherein: the second light splitting assembly (6) comprises a plurality of second reflectors (601) and second filter plates (602), wherein the second reflectors (601) are in one-to-one correspondence with the light emergent aligners (5) and are vertically arranged on the lower side of the fixing frame (2); the second filter plates (602) are arranged in a plurality of rows, and the second filter plates (602) are obliquely arranged below the fixing frame (2).

8. The miniaturized multichannel single-side fiber-out CCWDM module of claim 7, wherein: the first reflecting mirror (401) and the second reflecting mirror (601) are respectively in right-angled triangles.

9. The miniaturized multichannel single-side fiber-out CCWDM module of claim 1, wherein: the fixing frame (2) is of an integrated structure.

10. The miniaturized multichannel single-side fiber-out CCWDM module of claim 1, wherein: the box body (1) comprises a bottom shell (103) and a cover body (104) which covers the opening of the bottom shell (103), a stepped groove (1031) is formed in the position of the opening of the top of the bottom shell (103), and when the cover body (104) is covered on the stepped groove (1031), the cover body (104) and the bottom shell (103) are in the same horizontal plane.