CN111025491A

CN111025491A - Multifunctional optical fiber adapter

Info

Publication number: CN111025491A
Application number: CN201911422911.2A
Authority: CN
Inventors: 张迪
Original assignee: Wuhan E Service Photoelectric Technology Co Ltd
Current assignee: Wuhan E Service Photoelectric Technology Co Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-04-17
Anticipated expiration: 2039-12-31
Also published as: CN111025491B

Abstract

The invention relates to the technical field of optical fiber communication, and discloses a multifunctional optical fiber adapter, namely, an optical component accommodating cavity is arranged between an input end and an output end of the adapter, an optical component with an optical signal processing function is arranged in the optical component accommodating cavity, and an optical signal processing function module can be integrated in the adapter, so that a plurality of existing optical fiber adapters do not need to be arranged like an existing function processing link, the function processing link of the optical fiber adapter for a single optical fiber to a single optical fiber or for a single optical fiber to a plurality of optical fibers can be greatly simplified, nodes through which optical signals pass are effectively reduced, optical power loss is reduced, the number of devices is reduced, and the device cost of the whole link is reduced. In addition, the optical fiber adapter also has the advantages of compact structure, convenience in assembly, strong practicability, simple structure and the like, and is convenient for practical popularization and application.

Description

Multifunctional optical fiber adapter

Technical Field

The invention relates to the technical field of optical fiber communication, in particular to a multifunctional optical fiber adapter.

Background

Existing fiber optic adapters (e.g., LC-type fiber optic adapters) are primarily used in applications where two fiber optic connectors are mated, as shown in fig. 1A, the fiber optic adapter provides mating functionality for mating alignment and secure retention of the two mated fiber optic connectors. However, in other occasions, during the transmission process of the optical network, the optical module with a dedicated function is usually required to process the optical signal, and then the optical signal processed by the dedicated function module enters the optical network again for transmission.

As shown in fig. 1B, in order to implement functional processing (for example, optical signal amplification, optical signal attenuation, and unidirectional isolation of optical signals) of a single optical fiber to a single optical fiber, it is common practice to: the optical signal enters the functional module sequentially through an optical fiber connector, an optical fiber adapter (as an optical signal input end) and another optical fiber connector (as a functional input end), and the optical signal processed by the functional module reenters the optical network sequentially through an optical fiber connector (as a functional output end), an optical fiber adapter (as an optical signal output end) and another optical fiber connector. However, the problems with this connection are: the number of nodes through which optical signals pass is large, the optical power loss is large, the number of devices is large, and the cost of the devices of the whole link is high.

As shown in fig. 1C, in order to implement functional processing of a single optical fiber to multiple optical fibers (for example, splitting and combining optical signals, and implementing single-fiber bidirectional uploading and downloading of a circulator, etc.), it is a common practice to: the optical signal sequentially passes through an optical fiber connector, an optical fiber adapter (as an optical signal input end) and another optical fiber connector (as a function input end) to enter the function module, and the optical signal processed by the function module enters the optical network again through a plurality of optical signal branches sequentially connected by the optical fiber connector (as a function output end), the optical fiber adapter (as an optical signal output end) and the other optical fiber connector. However, this connection method also has the following problems: the number of nodes through which optical signals pass is large, the optical power loss is large, the number of devices is large, and the cost of the devices of the whole link is high.

Disclosure of Invention

In order to solve the problems that optical signals pass through more nodes, the optical power loss is large, the number of devices is large, and the cost of the devices of the whole link is high, which exist in the existing optical signal function processing link, the invention aims to provide a novel multifunctional optical fiber adapter, which can integrate the special optical module function into the optical fiber adapter to form the multifunctional optical fiber adapter integrating the optical function module.

The technical scheme adopted by the invention is as follows:

a multifunctional optical fiber adapter comprises an optical component accommodating cavity, an adapter input end, an adapter output end and an optical component with an optical signal processing function;

the optical component receiving cavity is disposed between the adapter input and the adapter output, the optical component being disposed in the optical component receiving cavity.

Preferably, an input end collimation holder containing an input end accommodating cavity is arranged at the input end of the adapter, and an output end collimation holder containing an output end accommodating cavity is arranged at the output end of the adapter;

the optical assembly comprises an input end collimation sleeve, an input end collimation insertion core, an optical function core piece, an output end collimation insertion core and an output end collimation sleeve, wherein the input end collimation sleeve is sleeved on the input end collimation insertion core and is installed in a space surrounded by a contour body of the input end containing cavity, the input end collimation insertion core is in optical communication with the input end of the optical function core piece, the optical function core piece is installed in the optical assembly containing cavity, the output end collimation insertion core is in optical communication with the output end of the optical function core piece, and the output end collimation sleeve is sleeved on the output end collimation insertion core and is installed in a space surrounded by the contour body of the output end containing cavity.

Preferably, the outline of the optical assembly accommodating cavity extends towards the input side and the output side respectively, the outline of the input accommodating cavity extends towards the output side and is connected with the input outline of the optical assembly accommodating cavity, and the outline of the output accommodating cavity extends towards the input side and is connected with the output outline of the optical assembly accommodating cavity to form a communicating cavity structure for accommodating the optical assembly.

In a detailed optimization, the optical assembly accommodating cavity, the input end accommodating cavity and the output end accommodating cavity are all U-shaped accommodating grooves with opening structures at the tops, and each opening structure comprises an opening communicated with the U-shaped accommodating groove and a cover plate for opening/closing the opening;

the optical functional core piece of the optical assembly is arranged in the optical assembly accommodating cavity when the opening is opened, the input end collimation sleeve and part of the input end collimation inserting core of the optical assembly are arranged in the input end accommodating cavity when the opening is opened, the output end collimation sleeve and part of the output end collimation inserting core of the optical assembly are arranged in the output end accommodating cavity when the opening is opened, and then the cover plate closes the opening.

Preferably, the input collimation holder further comprises a first input end stop and a second input end stop, wherein the first input end stop is arranged on the input side socket contour of the input end receiving cavity, the second input end stop is arranged on the output side socket contour of the input end receiving cavity, and the input collimation sleeve is arranged in a space surrounded by the input end receiving cavity contour, the first input end stop and the second input end stop;

and/or, output collimation holder still includes first output stop piece and second output stop piece, wherein, first output stop piece sets up on the output side socket profile body that the output holds the chamber, second output stop piece sets up on the input side socket profile body that the output holds the chamber, output collimation sleeve installs by the output holds the profile body of chamber, first output stop piece and the space that second output stop piece surrounded in.

Preferably, the input end accommodating cavity is sleeved on the periphery of the input end collimating sleeve towards the direction of the output end, and the output end accommodating cavity is sleeved on the periphery of the output end collimating sleeve towards the direction of the input end;

the end face of the output side of the input end of the adapter is fixedly connected with the end face of the input side of the profile body of the accommodating cavity of the optical component in a gluing, welding, mechanical buckling or integrated forming mode;

and the end face of the input side of the output end of the adapter is fixedly connected with the end face of the output side of the profile body of the accommodating cavity of the optical component in a gluing, welding, mechanical buckling or integrated forming mode.

Preferably, an input port structural support or an input end ribbed structural support integrally formed with the input end alignment holder is further arranged at the input end of the adapter, wherein the input end ribbed structural support is arranged around the periphery of the input end alignment holder;

and/or an output port structural support or an output end ribbed structural support integrally formed with the output end collimation holder is further arranged at the output end of the adapter, wherein the output end ribbed structural support is arranged on the periphery of the output end collimation holder in a surrounding mode.

Preferably, the fiber optic adapter comprises one adapter input and at least one adapter output, or comprises at least one adapter input and one adapter output.

Preferably, the optical component is an attenuator component with an optical power attenuation function, an isolator component with an optical signal one-way isolation function, a circulator component with a circulator single-fiber two-way function, a MUX component with a wavelength division function or a DEMUX component with a wavelength combination function.

Preferably, when the optical module is an attenuator module or an isolator module, the optical module comprises a pair of input end collimating ferrule and collimating sleeve and a pair of output end collimating ferrule and collimating sleeve, and the optical fiber adapter comprises an adapter input end and an adapter output end;

or, when the optical assembly is a circulator assembly, the optical assembly comprises a pair of input end collimation insertion cores and collimation sleeves and two pairs of output end collimation insertion cores and collimation sleeves, and the optical fiber adapter comprises an adapter input end and two adapter output ends;

or, when the optical component is a MUX component, the optical component includes a pair of input end collimating ferrule and collimating sleeve and M pairs of output end collimating ferrule and collimating sleeve, the optical fiber adapter includes an adapter input end and M adapter output ends, and M is a natural number not less than 2;

or, when the optical component is a DEMUX component, the optical component includes N pairs of input end collimating ferrules and collimating sleeves and a pair of output end collimating ferrules and collimating sleeves, the optical fiber adapter includes N adapter input ends and an adapter output end, and N is a natural number not less than 2.

And preferably, the MUX assembly and the DEMUX assembly are two optical assemblies with reversible light paths.

Furthermore, the optical paths of all the optical devices are reversible, so that the directions of optical signal transmission at the adapter input end 20 and the adapter output end 30 can be interchanged.

The invention has the beneficial effects that:

(1) the invention has created and provided a new fiber optic adapter with optical signal processing function, namely through setting up the optical assembly and holding the cavity between adapter input end and adapter output end and built-in the optical assembly with optical signal processing function, can integrate the optical signal processing function module in the adapter, thus does not need to dispose a plurality of existing fiber optic adapters like existing function processing link, can simplify greatly and use the fiber optic adapter for the single optic fibre to the single optic fibre or function processing link used for single optic fibre to many optic fibres, reduce the node that the optical signal passes through effectively, reduce the optical power loss, reduce the device quantity and reduce the device cost of the whole link;

(2) the optical fiber adapter also has the advantages of compact structure, convenience in assembly, strong practicability, simple structure and the like, and is convenient for practical popularization and application.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1A is a schematic diagram of an optical signal link in which a prior art fiber optic adapter is used in a two fiber optic connector mating application.

Fig. 1B is a schematic diagram of a prior art functional processing link using a fiber optic adapter for a single fiber to a single fiber.

Fig. 1C is a schematic diagram of a prior art functional processing link using a fiber optic adapter for single fiber to multiple fibers.

Fig. 2 is a schematic diagram of a first fiber adapter according to the present invention in a disassembled structure.

Fig. 3 is a cross-sectional structural diagram of a transmission direction of a first fiber optic adapter provided by the present invention when an optical assembly is not installed.

Fig. 4 is a cross-sectional structural diagram of a transmission direction of a first fiber adapter provided by the invention in connection use.

Fig. 5 is a schematic perspective view of a second fiber optic adapter provided in the present invention.

Fig. 6 is a cross-sectional structural diagram of a transmission direction of a second fiber optic adapter provided by the invention in connection use.

FIG. 7 is a schematic diagram of a split configuration of an isolator assembly in a third fiber optic adapter according to the present invention.

Fig. 8 is a schematic diagram of a fifth optical fiber adapter according to the present invention in a disassembled structure.

Fig. 9 is a schematic diagram of a disassembled structure of an eighth fiber optic adapter provided by the present invention.

Fig. 10 is a schematic cross-sectional view of a transmission direction of an eighth fiber optic adapter provided in the present invention.

Fig. 11 is a schematic diagram of a ninth fiber optic adapter according to the present invention in a disassembled configuration.

Fig. 12 is a schematic cross-sectional view of a transmission direction of a ninth fiber optic adapter according to the present invention.

Fig. 13 is a schematic diagram of a disassembled structure of a tenth fiber optic adapter provided in the present invention.

Fig. 14 is a cross-sectional view of a transmission direction of a tenth fiber optic adapter according to the present invention.

Fig. 15 is a schematic diagram of a disassembled structure of an eleventh fiber optic adapter provided by the present invention.

Fig. 16 is a schematic cross-sectional view of a transmission direction of an eleventh fiber optic adapter according to the present invention.

In the above drawings: 10-an optical component housing cavity; 20-adapter input; 21-input end alignment holder; 211-input end receiving cavity; 212-a first input end stop; 213-second input end stop; 22-input port structural support; 23-input end ribbed structural support; 30-adapter output; 31-output port alignment holder; 311-output end accommodating cavity; 312 — a first output end stop; 313-a second output end stop; 32-output port structural support; 33-output end ribbed structural support; 41-opening; 42-a cover plate; 500-an optical component; 501-input end collimating sleeve; 502-input end collimation insertion core; 503-an optically functional core member; 504-output end collimation insertion core; 505-output end collimating sleeve; 601-a first fiber optic connector; 602-a second fiber optic connector; 603-a third fiber optic connector; 604-a fourth fiber optic connector; 700-existing fiber optic connectors; 800-existing fiber optic adapters; 900-existing functional module.

Detailed Description

The invention is further described with reference to the following figures and specific embodiments. It should be noted that the description of the embodiments is provided to help understanding of the present invention, but the present invention is not limited thereto. Specific structural and functional details disclosed herein are merely illustrative of example embodiments of the invention. This invention may, however, be embodied in many alternate forms and should not be construed as limited to the embodiments set forth herein.

It will be understood that, although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first element could be termed a second element, and, similarly, a second element could be termed a first element, without departing from the scope of example embodiments of the present invention.

It should be understood that although the terms "input" and "output" are used herein, it should be noted that the optical path is reversible and the two may be used interchangeably.

It should be understood that, for the term "and/or" as may appear herein, it is merely an associative relationship that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, B exists alone, and A and B exist at the same time; for the term "/and" as may appear herein, which describes another associative object relationship, it means that two relationships may exist, e.g., a/and B, may mean: a exists independently, and A and B exist independently; in addition, for the character "/" that may appear herein, it generally means that the former and latter associated objects are in an "or" relationship.

It will be understood that when an element is referred to herein as being "connected," "connected," or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may be present. Conversely, if a unit is referred to herein as being "directly connected" or "directly coupled" to another unit, it is intended that no intervening units are present. In addition, other words used to describe the relationship between elements should be interpreted in a similar manner (e.g., "between … …" versus "directly between … …", "adjacent" versus "directly adjacent", etc.).

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments of the invention. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises," "comprising," "includes" and/or "including," when used herein, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, elements, components, and/or groups thereof.

It should also be noted that, in some alternative implementations, the functions/acts noted may occur out of the order noted in the figures. For example, two figures shown in succession may, in fact, be executed substantially concurrently, or the figures may sometimes be executed in the reverse order, depending upon the functionality/acts involved.

It should be understood that specific details are provided in the following description to facilitate a thorough understanding of example embodiments. However, it will be understood by those of ordinary skill in the art that the example embodiments may be practiced without these specific details. For example, systems may be shown in block diagrams in order not to obscure the examples in unnecessary detail. In other instances, well-known processes, structures and techniques may be shown without unnecessary detail in order to avoid obscuring example embodiments.

Example one

As shown in fig. 2 to 4, the first multifunctional fiber optic adapter provided in this embodiment includes an optical component accommodating cavity 10, an adapter input end 20, an adapter output end 30, and an optical component 500 having an optical signal processing function; the optical component receiving cavity 10 is disposed between the adapter input end 20 and the adapter output end 30, and the optical component 500 is disposed in the optical component receiving cavity 10.

As shown in fig. 2 to 4, in a specific structure of the optical fiber adapter, the optical component 500, the contour of the optical component accommodating cavity 10, the adapter input end 20, and the adapter output end 30 are all indispensable devices of the optical fiber adapter, where the optical component 500 is a core device that implements a plurality of different processing functions (e.g., implementing processing functions such as optical signal amplification, optical signal attenuation, unidirectional optical signal isolation, optical signal splitting, combining, and/or single-fiber bidirectional uploading and downloading of a circulator), and may be configured as an amplifier component with an optical power enhancement function, for example. The adapter input 20 is used to provide an input side jack into which an external fiber optic connector may be inserted; the adapter outlet 30 is adapted to provide an outlet side socket into which an external fiber optic connector may be inserted. By disposing the optical component receiving cavity 10 between the adapter input end 20 and the adapter output end 30 and incorporating the optical component 500, an optical signal processing function module can be integrated inside the adapter, thereby eliminating the need to arrange a plurality of existing fiber optic adapters 800 as in fig. 1B (when the optical assembly 500 is configured to perform processing functions such as optical signal amplification, optical signal attenuation, and/or unidirectional isolation of optical signals) and fig. 1C (when the optical assembly 500 is configured to perform processing functions such as optical signal splitting, wave combining, and/or circulator single-fiber bidirectional upload and download), the optical fiber adapter can be used for greatly simplifying the functional processing link of a single optical fiber to a single optical fiber or a plurality of optical fibers by the single optical fiber, effectively reducing nodes through which optical signals pass, reducing the optical power loss, reducing the number of devices and reducing the device cost of the whole link. Furthermore, the adapter input end 20 and the adapter output end 30 can be respectively provided in a plurality of numbers according to the requirement and can be interchanged in function, for example, the optical fiber adapter includes one adapter input end 20 and at least one adapter output end 30, or includes at least one adapter input end 20 and one adapter output end 30, the former can be but not limited to implement the wavelength division application of the optical signal based on the processing function of the optical component 500, such as one-to-two, one-to-three or one-to-four, and the latter can be but not limited to implement the multiplexing application of the optical signal based on the processing function of the optical component 500.

Preferably, an input end collimation holder 21 containing an input end receiving cavity 211 is arranged at the input end 20 of the adapter, and an output end collimation holder 31 containing an output end receiving cavity 311 is arranged at the output end 30 of the adapter; the optical assembly 500 includes an input end collimating sleeve 501, an input end collimating ferrule 502, an optical function core piece 503, an output end collimating ferrule 504 and an output end collimating sleeve 505, wherein the input end collimating sleeve 501 is sleeved on the input end collimating ferrule 502 and is installed in a space surrounded by the outline of the input end accommodating cavity 211, the input end collimating ferrule 502 is optically communicated with the input end of the optical function core piece 503, the optical function core piece 503 is installed in the optical assembly accommodating cavity 10, the output end collimating ferrule 504 is optically communicated with the output end of the optical function core piece 503, and the output end collimating sleeve 505 is sleeved on the output end collimating ferrule 504 and is installed in a space surrounded by the outline of the output end accommodating cavity 311. As shown in fig. 2-4, the input end collimating holder 21 is configured to surround the input end portion of the optical assembly 500 (i.e., the input end collimating sleeve 501) with the input end receiving cavity 211 inside; the output end collimation holder 31 is used to surround the output end of the optical assembly 500 (i.e., the output end collimation sleeve 505) with the output end receiving cavity 311 inside; the optical functional core member 503 is an existing functional member and is used to implement processing functions such as optical signal amplification, optical signal attenuation, unidirectional isolation of optical signals, optical signal splitting, wave combining, and/or bidirectional uploading and downloading of a circulator single fiber, and the input end collimating ferrule and the collimating sleeve are used to introduce collimated optical signals, and the output end collimating ferrule and the collimating sleeve are used to derive collimated and correspondingly processed optical signals; the outline body of the optical module receiving cavity 10 is used to enclose the optically functional core 503 and the partially input end collimating ferrule 502 and the partially output end collimating ferrule 504 of the optical module 500. Therefore, by the specific structure, the introduction of the optical signal, the processing of the optical signal and the derivation of the optical signal can be realized, and the whole technical scheme is more complete and clear.

Preferably, the outline of the optical component accommodating cavity 10 extends towards the input side and the output side respectively, the outline of the input accommodating cavity 211 extends towards the output side and is connected with the input outline of the optical component accommodating cavity 10, the outline of the output accommodating cavity 311 extends towards the input side and is connected with the output outline of the optical component accommodating cavity 10, a communicating cavity structure for accommodating the optical component 500 is formed, and an opening structure for accommodating the optical component 500 is arranged on the outline of the communicating cavity structure. As shown in fig. 3, the contour of the input end receiving cavity 211 and the contour of the output end receiving cavity 311 are respectively connected to the contour of the optical component receiving cavity 10 in an integrally formed manner, so that the input end receiving cavity 211 and the output end receiving cavity 311 are respectively communicated with the optical component receiving cavity 10 and are integrally formed, and therefore, no matter whether there is an axis offset design (a portion of the multifunctional optical fiber adapter has an axis offset design due to functional requirements, which is different from a simple optical fiber adapter, or an axis offset phenomenon which may occur due to splicing can be avoided in case of a non-axis offset design), the risk that the input end collimating sleeve 501 and the output end collimating sleeve 505 are squeezed in the corresponding receiving cavities can be reduced, and at the same time, it is ensured that the collimating sleeve has a suitable floating space in the receiving cavity, thereby ensuring the assembly safety of the optical component, the yield of the product is improved. In addition, since the opening structure for installing the optical module 500 is provided on the profile body of the communicating chamber structure, the optical module 500 can be conveniently installed inside the communicating chamber structure through the opening structure.

In a detailed optimization, the optical assembly accommodating cavity 10, the input end accommodating cavity 211 and the output end accommodating cavity 311 are all U-shaped accommodating cavities with an open structure at the top, and the open structure includes an opening 41 communicated with the U-shaped accommodating cavity and a cover plate 42 for opening/closing the opening 41; the optically functional core member 503 of the optical module 500 is inserted into the optical module accommodating cavity 10 when the opening 41 is opened, the input end collimating sleeve 501 and a part of the input end collimating ferrule 502 of the optical module 500 are inserted into the input end accommodating cavity 211 when the opening 41 is opened, the output end collimating sleeve 505 and a part of the output end collimating ferrule 504 of the optical module 500 are inserted into the output end accommodating cavity 311 when the opening 41 is opened, and then the cover plate 42 is made to close the opening 41. As shown in fig. 2, by designing the opening 41 and the cover plate 42, the optical assembly 500 can be easily placed into the U-shaped receiving groove from the outside, which facilitates product assembly and ensures that the optical assembly 500 and the input and

output collimating sleeves

501 and 505 are in the adapter internal cavity and do not escape. Specifically, as shown in fig. 2, the opening 41 is a cross-shaped opening, the cover plate 42 is a cross-shaped cover plate matching with the cross-shaped opening, and the bottom surface of the cover plate 42 is a curved surface matching with the outer periphery of the optical assembly 500.

Preferably, the input collimation holder 21 further comprises a first input end stop 212 and a second input end stop 213, wherein the first input end stop 212 is disposed on the input side socket contour of the input end receiving cavity 211, the second input end stop 213 is disposed on the output side socket contour of the input end receiving cavity 211, and the input collimation sleeve 501 is installed in the space surrounded by the contour of the input end receiving cavity 211, the first input end stop 212 and the second input end stop 213; and/or, the output end collimation holder 31 further comprises a first output end stop 312 and a second output end stop 313, wherein the first output end stop 312 is arranged on the output side socket contour of the output end receiving cavity 311, the second output end stop 313 is arranged on the input side socket contour of the output end receiving cavity 311, and the output end collimation sleeve 505 is installed in the space surrounded by the contour of the output end receiving cavity 311, the first output end stop 312 and the second output end stop 313. As shown in fig. 2 to 4, the first input end stopper 212 is used to block the input end collimating sleeve 501 from escaping through the input side socket, and the second input end stopper 213 is used to block the input end collimating sleeve 501 from escaping through the output side socket (for inserting the input end collimating insert 502) of the input end accommodating cavity 211, so that the normal use of the adapter input end 20 can be ensured. The first output end stop 312 is used to stop the output end collimating sleeve 505 from escaping through the output side socket, and the second output end stop 313 is used to stop the output end collimating sleeve 505 from escaping through the input side socket (for inserting the output end collimating insert 504) of the output end receiving cavity 311, so that the normal use of the adapter output end 30 can be ensured.

Preferably, an input port structural support 22 is also provided at the input end 20 of the adapter, integrally formed with the input end alignment holder 21; and/or, an output port structural support 32 integrally formed with the output port alignment retainer 31 is also provided at the adapter output 30. As shown in fig. 3 to 4, the input port structural support 22 and the output port structural support 32 are provided, wherein the input port structural support 22 is used to form an input port of a pluggable optical fiber connector (i.e. the first optical fiber connector 601 in the drawing), which can be implemented by using an existing structure so as to satisfy the female form or the male form of various types of connectors; the output port structural support 32 is used to form the output port of a pluggable optical fiber connector (i.e., the second fiber connector 602 in the figure), which can also be implemented by using the existing structure so as to satisfy the female form or the male form of various types of connectors. Because the input end collimation holding piece 21 and the input end structural support piece 22 are integrally designed, the J size in the I EC-61754-20 can be ensured, and the optical fiber connector is inserted into the input end of the adapter to obtain good butt joint efficiency; and because the output port alignment holder 31 and the output port structural support 32 are integrally designed, the J size in iec-61754-20 can be ensured, so that when the optical fiber connector is inserted into the output end of the adapter, good butt joint efficiency is obtained. Therefore, stress can be avoided when the input end and/or the output end are/is inserted, the loss of the connector is effectively prevented from being increased, and the use reliability of the product is improved. Preferably, the input port structural support 22 and the output port structural support 32 are integrally formed by an integral forming process, so that the whole adapter is integrally formed, the processing and the installation are convenient, and the splicing dislocation is avoided.

In summary, the first multifunctional fiber adapter provided in this embodiment has the following technical effects:

(1) the embodiment provides a novel optical fiber adapter with an optical signal processing function, namely, an optical component accommodating cavity is arranged between an input end and an output end of the adapter, and an optical component with the optical signal processing function is arranged in the optical component accommodating cavity, so that an optical signal processing function module can be integrated in the adapter, a plurality of existing optical fiber adapters do not need to be arranged like an existing function processing link, the function processing link of the optical fiber adapter for a single optical fiber to a single optical fiber or for a single optical fiber to a plurality of optical fibers can be greatly simplified, nodes through which optical signals pass are effectively reduced, optical power loss is reduced, the number of devices is reduced, and the device cost of the whole link is reduced;

Example two

As shown in fig. 5 to 6, in this embodiment, based on the technical solution of the first embodiment, another optical fiber adapter with a simplified structure is provided, in which the arrangement of the input port structural support 22 and the output port structural support 32 is omitted, but an input end ribbed structural support 23 integrally formed with the input end alignment holder 21 and/or an output end ribbed structural support 33 integrally formed with the output end alignment holder 31 are additionally provided, wherein the input end ribbed structural support 23 is disposed around the outer periphery of the input end alignment holder 21, and the output end ribbed structural support 33 is disposed around the outer periphery of the output end alignment holder 31. As shown in fig. 5 to 6, by providing the input end ribbed structure supporting member 23 and the output end ribbed structure supporting member 33 at the same time, the corresponding alignment retaining members can be reinforced respectively, and the fastening with the third optical fiber connector 603 or the fourth optical fiber connector 604 in the drawings can be facilitated to be stably performed.

The technical effects of the present embodiment can be directly derived by referring to the technical effects of the first embodiment, and are not described herein again.

EXAMPLE III

As shown in fig. 7, this embodiment provides another optical fiber adapter based on the technical solution of the first embodiment, and the difference between the optical fiber adapter of the first embodiment and the optical fiber adapter of the first embodiment is that: the optical module 500 is an isolator module with optical signal unidirectional isolation function and includes a pair of input end collimating ferrule and collimating sleeve and a pair of output end collimating ferrule and collimating sleeve, and the optical fiber adapter includes an adapter input end 20 and an adapter output end 30. As shown in fig. 7, the core for realizing the unidirectional optical signal isolation function is an existing optical functional core piece 503, and the input end collimating ferrule and the collimating sleeve are specifically a pair of input end collimating ferrule 502 and input end collimating sleeve 501, and are installed in the input end 20 of the adapter in a one-to-one correspondence; the output end collimating ferrule and collimating sleeve are specifically a pair of output end collimating ferrule 504 and output end collimating sleeve 505, and are installed in the adapter output end 30 in a one-to-one correspondence. Therefore, by the structure, the optical fiber adapter can be a multifunctional optical fiber adapter integrated with an optical signal one-way isolation function.

Example four

The present embodiment provides another optical fiber adapter based on the technical solution of the first embodiment, and the difference between the optical fiber adapter of the first embodiment and the optical fiber adapter of the first embodiment is that: the optical module 500 is an attenuator module with optical power attenuation function and includes a pair of input end collimating ferrule and collimating sleeve and a pair of output end collimating ferrule and collimating sleeve, and the optical fiber adapter includes an adapter input end 20 and an adapter output end 30. The specific structure can be designed with reference to fig. 7, the core for realizing the optical power attenuation function is the existing optical functional core piece 503, and the input end collimating ferrule and collimating sleeve are specifically a pair of input end collimating ferrule 502 and input end collimating sleeve 501, and are installed in the input end 20 of the adapter in a one-to-one correspondence manner; the output end collimating ferrule and collimating sleeve are specifically a pair of output end collimating ferrule 504 and output end collimating sleeve 505, and are installed in the adapter output end 30 in a one-to-one correspondence. Therefore, by the structure, the optical fiber adapter can be a multifunctional optical fiber adapter integrated with an optical power attenuation function.

EXAMPLE five

As shown in fig. 8, this embodiment provides another fiber optic adapter based on the technical solution of the first embodiment, and the difference between the fiber optic adapter of the first embodiment and the fiber optic adapter of the first embodiment is that: the optical assembly 500 is a circulator assembly having a circulator single-fiber bidirectional function and includes a pair of input end collimating ferrule and collimating sleeve and two pairs of output end collimating ferrule and collimating sleeve, and the optical fiber adapter includes an adapter input end 20 and two adapter output ends 30. As shown in fig. 8, the core for realizing the single-fiber bidirectional function of the circulator is an existing optical functional core member 503, and the input end collimating ferrule and the collimating sleeve are specifically a pair of input end collimating ferrule 502 and input end collimating sleeve 501, and are installed in the input end 20 of the adapter in a one-to-one correspondence; the output end collimating ferrule and collimating sleeve are specifically a pair of output end collimating ferrule 504 and output end collimating sleeve 505, and are installed in the adapter output end 30 in a one-to-one correspondence. Therefore, by the structure, the optical fiber adapter can be a multifunctional optical fiber adapter integrated with circulator single-fiber bidirectional functions.

EXAMPLE six

The present embodiment provides another optical fiber adapter based on the technical solution of the first embodiment, and the difference between the optical fiber adapter of the first embodiment and the optical fiber adapter of the first embodiment is that: the optical module 500 is a MUX module with a wavelength division function and includes a pair of input end collimating ferrule and collimating sleeve and M pairs of output end collimating ferrule and collimating sleeve, the optical fiber adapter includes an adapter input end 20 and M adapter output ends 30, and M is a natural number not less than 2. The specific structure can be designed with reference to fig. 8, the core for realizing the wavelength division function is an existing optical functional core piece 503, and the input end collimating ferrule and collimating sleeve are specifically a pair of input end collimating ferrule 502 and input end collimating sleeve 501, and are installed in the input end 20 of the adapter in a one-to-one correspondence manner; the output end collimating ferrule and collimating sleeve are specifically a pair of output end collimating ferrule 504 and output end collimating sleeve 505, and are installed in the adapter output end 30 in a one-to-one correspondence. Therefore, the optical fiber adapter can be a multifunctional optical fiber adapter integrated with a wavelength division function through the structure.

EXAMPLE seven

The present embodiment provides another optical fiber adapter based on the technical solution of the first embodiment, and the difference between the optical fiber adapter of the first embodiment and the optical fiber adapter of the first embodiment is that: the optical module 500 is a DEMUX module with a multiplexing function and includes N pairs of input end collimating ferrules and collimating sleeves and a pair of output end collimating ferrules and collimating sleeves, the optical fiber adapter includes N adapter input ends 20 and an adapter output end 30, and N is a natural number not less than 2. The specific structure can also be designed with reference to fig. 8, the core for realizing the wave combining function is the existing optical functional core piece 503, and the input end collimating ferrule and collimating sleeve are specifically a pair of input end collimating ferrule 502 and input end collimating sleeve 501, and are installed in the input end 20 of the adapter in a one-to-one correspondence manner; the output end collimating ferrule and collimating sleeve are specifically a pair of output end collimating ferrule 504 and output end collimating sleeve 505, and are installed in the adapter output end 30 in a one-to-one correspondence. Therefore, by the structure, the optical fiber adapter can be a multifunctional optical fiber adapter integrated with a wave combination function. In addition, the DEMUX module can be two optical modules with reversible optical paths with the MUX module in the sixth embodiment, and since the adapter input end 20 and the adapter output end 30 can be used interchangeably, the same optical fiber adapter can be used for both the add and drop applications.

Example eight

As shown in fig. 9 to 10, in this embodiment, on the basis of the technical solution of the first embodiment, another optical fiber adapter is provided, which is different from the optical fiber adapter of the first embodiment in that: the input end receiving cavity 211 is wrapped around the input end collimating sleeve 501 (also including the input end collimating ferrule 502) towards the output end, and the output end receiving cavity 311 is wrapped around the output end collimating sleeve 505 (also including the output end collimating ferrule 504) towards the input end; the output side end face of the adapter input end 20 is fixedly connected with the profile body input side end face of the optical component accommodating cavity 10 in an adhesive manner; the input-side end face of the adapter output 30 is fixedly connected to the profile body output-side end face of the optical component receiving cavity 10 by gluing. 9-10, a non-integrally formed structure of the contour of the discrete optical component receiving cavity 10, the adapter input end 20 and the adapter output end 30 is provided; in addition, the fixed connection can also be realized by, but not limited to, welding, mechanical snapping, or integral molding.

Example nine

As shown in fig. 11 to 12, in this embodiment, on the basis of the technical solution of the eighth embodiment, another optical fiber adapter is provided, which is different from the optical fiber adapter described in the eighth embodiment in that: before the optical assembly 500 is mounted, the input end collimating sleeve 501 and the input end collimating ferrule 502 are already built in the input end receiving cavity 211, the output end collimating sleeve 505 and the output end collimating ferrule 504 are already built in the output end receiving cavity 311, then when mounted, the input end collimating ferrule 502 is optically communicated with the optical function core member 503, the output end collimating ferrule 504 is optically communicated with the optical function core member 503, finally, the fixed connection of the adapter input end 20 and the contour of the optical assembly receiving cavity 10 is realized by gluing, welding or mechanical fastening, and the fixed connection of the adapter output end 30 and the contour of the optical assembly receiving cavity 10 is realized by gluing, welding or mechanical fastening.

The technical effect of the present embodiment can be directly derived by referring to the technical effects of the eighth embodiment, and is not described herein again.

Example ten

As shown in fig. 13 to 14, in this embodiment, on the basis of the technical solution of the second embodiment, another optical fiber adapter is provided, which is different from the optical fiber adapter of the second embodiment in that: the input end receiving cavity 211 is wrapped around the input end collimating sleeve 501 (also including the input end collimating ferrule 502) towards the output end, and the output end receiving cavity 311 is wrapped around the output end collimating sleeve 505 (also including the output end collimating ferrule 504) towards the input end; the output side end face of the adapter input end 20 is fixedly connected with the profile body input side end face of the optical component accommodating cavity 10 in an adhesive manner; the input-side end face of the adapter output 30 is fixedly connected to the profile body output-side end face of the optical component receiving cavity 10 by gluing. 13-14, a non-integrally formed structure of the contour of the discrete optical component receiving cavity 10, the adapter input end 20 and the adapter output end 30 is provided; in addition, the fixed connection can also be realized by, but not limited to, welding, mechanical snapping, or integral molding.

The technical effect of the present embodiment can be directly derived by referring to the technical effects of the second embodiment, and is not described herein again.

EXAMPLE eleven

As shown in fig. 15 to 16, in this embodiment, on the basis of the technical solution of the tenth embodiment, another optical fiber adapter is provided, which is different from the optical fiber adapter described in the tenth embodiment in that: before the optical assembly 500 is mounted, the input end collimating sleeve 501 and the input end collimating ferrule 502 are already built in the input end receiving cavity 211, the output end collimating sleeve 505 and the output end collimating ferrule 504 are already built in the output end receiving cavity 311, then when mounted, the input end collimating ferrule 502 is optically communicated with the optical function core member 503, the output end collimating ferrule 504 is optically communicated with the optical function core member 503, finally, the fixed connection of the adapter input end 20 and the contour of the optical assembly receiving cavity 10 is realized by gluing, welding or mechanical fastening, and the fixed connection of the adapter output end 30 and the contour of the optical assembly receiving cavity 10 is realized by gluing, welding or mechanical fastening.

The technical effect of this embodiment can be directly derived by referring to the technical effect of the tenth embodiment, and is not described herein again.

The various embodiments described above are merely illustrative, and may or may not be physically separate, as they relate to elements illustrated as separate components; if reference is made to a component displayed as a unit, it may or may not be a physical unit, and may be located in one place or distributed over a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; 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: modifications of the technical solutions described in the embodiments or equivalent replacements of some technical features may still be made. And such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Finally, it should be noted that the present invention is not limited to the above alternative embodiments, and that various other forms of products can be obtained by anyone in light of the present invention. The above detailed description should not be taken as limiting the scope of the invention, which is defined in the claims, and which the description is intended to be interpreted accordingly.

Claims

1. A multifunctional fiber optic adapter, comprising: comprises an optical component accommodating cavity (10), an adapter input end (20), an adapter output end (30) and an optical component (500) with an optical signal processing function;

the optical component receiving cavity (10) is disposed between the adapter input end (20) and the adapter output end (30), and the optical component (500) is disposed in the optical component receiving cavity (10).

2. A multi-function fiber optic adapter according to claim 1, wherein: an input end collimation holder (21) containing an input end containing cavity (211) is arranged at the input end (20) of the adapter, and an output end collimation holder (31) containing an output end containing cavity (311) is arranged at the output end (30) of the adapter;

the optical assembly (500) includes an input end collimating sleeve (501), an input end collimating ferrule (502), an optical function core piece (503), an output end collimating ferrule (504), and an output end collimating sleeve (505), wherein the input end collimation sleeve (501) is sleeved on the input end collimation inserting core (502) and is arranged in a space surrounded by the outline body of the input end accommodation cavity (211), the input-end collimating ferrule (502) is in optical communication with the input end of the optically functional core piece (503), the optically functional core member (503) is mounted in the optical component receiving cavity (10), the output-end collimating ferrule (504) is in optical communication with the output end of the optically functional core piece (503), the output end collimation sleeve (505) is sleeved on the output end collimation inserting core (504) and is arranged in a space surrounded by the outline body of the output end accommodating cavity (311).

3. A multi-function fiber optic adapter according to claim 2, wherein: the profile body that optical component held chamber (10) extends towards input side direction and output side direction respectively, the profile body that the input held chamber (211) extends towards the output side direction, and with the input end profile body that optical component held chamber (10) is connected, the profile body that the output held chamber (311) extends towards the input side direction, and with the output end profile body that optical component held chamber (10) is connected, forms the intercommunication cavity structures that are used for holding optical component (500).

4. A multifunctional fiber optic adapter according to claim 3, wherein: the optical component accommodating cavity (10), the input end accommodating cavity (211) and the output end accommodating cavity (311) are all U-shaped accommodating cavities with opening structures at the tops, and each opening structure comprises an opening (41) communicated with the U-shaped accommodating cavity and a cover plate (42) used for opening/closing the opening (41);

the optical functional core piece (503) of the optical module (500) is installed in the optical module accommodating cavity (10) when the opening (41) is opened, the input end collimating sleeve (501) and a part of the input end collimating ferrule (502) of the optical module (500) are installed in the input end accommodating cavity (211) when the opening (41) is opened, the output end collimating sleeve (505) and a part of the output end collimating ferrule (504) of the optical module (500) are installed in the output end accommodating cavity (311) when the opening (41) is opened, and then the cover plate (42) is made to close the opening (41).

5. A multi-function fiber optic adapter according to claim 2, wherein: the input end collimation holder (21) further comprises a first input end stop (212) and a second input end stop (213), wherein the first input end stop (212) is arranged on an input side socket contour of the input end receiving cavity (211), the second input end stop (213) is arranged on an output side socket contour of the input end receiving cavity (211), and the input end collimation sleeve (501) is installed in a space surrounded by the input end receiving cavity (211) contour, the first input end stop (212) and the second input end stop (213);

and/or the output end collimation holder (31) further comprises a first output end stop (312) and a second output end stop (313), wherein the first output end stop (312) is arranged on the output side socket contour of the output end accommodating cavity (311), the second output end stop (313) is arranged on the input side socket contour of the output end accommodating cavity (311), and the output end collimation sleeve (505) is arranged in the space surrounded by the contour of the output end accommodating cavity (311), the first output end stop (312) and the second output end stop (313).

6. A multi-function fiber optic adapter according to claim 2, wherein: the input end accommodating cavity (211) is sleeved on the periphery of the input end collimating sleeve (501) towards the direction of an output end, and the output end accommodating cavity (311) is sleeved on the periphery of the output end collimating sleeve (505) towards the direction of the input end;

the end face of the output side of the input end (20) of the adapter is fixedly connected with the end face of the input side of the profile body of the optical component accommodating cavity (10) in a gluing, welding, mechanical buckling or integrated forming mode;

the input side end face of the adapter output end (30) is fixedly connected with the profile body output side end face of the optical assembly accommodating cavity (10) in an adhesive, welding, mechanical buckling or integrated forming mode.

7. A multi-function fiber optic adapter according to claim 2, wherein: an input port structural support (22) or an input end ribbed structural support (23) which is integrally formed with the input end collimation holder (21) is further arranged at the input end (20), wherein the input end ribbed structural support (23) is arranged on the periphery of the input end collimation holder (21) in a surrounding mode;

and/or an output end structural support (32) or an output end ribbed structural support (33) which is integrally formed with the output end alignment holder (31) is further arranged at the output end (30) of the adapter, wherein the output end ribbed structural support (33) is arranged on the periphery of the output end alignment holder (31) in a surrounding manner.

8. A multi-function fiber optic adapter according to claim 1, wherein: the fiber optic adapter comprises one adapter input (20) and at least one adapter output (30), or comprises at least one adapter input (20) and one adapter output (30).

9. A multi-function fiber optic adapter according to claim 1, wherein: the optical assembly (500) is an attenuator assembly with an optical power attenuation function, an isolator assembly with an optical signal one-way isolation function, a circulator assembly with a circulator single-fiber two-way function, a MUX assembly with a wave division function or a DEMUX assembly with a wave combination function.

10. A multi-function fiber optic adapter according to claim 9, wherein: when the optical assembly (500) is an attenuator assembly or an isolator assembly, the optical assembly (500) comprises a pair of input end collimation core inserts and collimation sleeves and a pair of output end collimation core inserts and collimation sleeves, and the optical fiber adapter comprises an adapter input end (20) and an adapter output end (30);

or, when the optical assembly (500) is a circulator assembly, the optical assembly (500) includes a pair of input end collimating ferrule and collimating sleeve and two pairs of output end collimating ferrule and collimating sleeve, and the optical fiber adapter includes an adapter input end (20) and two adapter output ends (30);

or, when the optical assembly (500) is a MUX assembly, the optical assembly (500) includes a pair of input end collimating ferrule and collimating sleeve and M pairs of output end collimating ferrule and collimating sleeve, the optical fiber adapter includes an adapter input end (20) and M adapter output ends (30), and M is a natural number not less than 2;

or, when the optical component (500) is a DEMUX component, the optical component (500) includes N pairs of input end collimating ferrules and collimating sleeves and a pair of output end collimating ferrules and collimating sleeves, the optical fiber adapter includes N adapter input ends (20) and an adapter output end (30), and N is a natural number not less than 2.