CN208239662U - Multi-core optical fiber reflector - Google Patents
Multi-core optical fiber reflector Download PDFInfo
- Publication number
- CN208239662U CN208239662U CN201820686361.XU CN201820686361U CN208239662U CN 208239662 U CN208239662 U CN 208239662U CN 201820686361 U CN201820686361 U CN 201820686361U CN 208239662 U CN208239662 U CN 208239662U
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- Prior art keywords
- optical fiber
- core optical
- lock pin
- fiber lock
- spring
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 132
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- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims 1
- 239000010931 gold Substances 0.000 claims 1
- 229910052737 gold Inorganic materials 0.000 claims 1
- 238000004891 communication Methods 0.000 abstract description 6
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- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Mechanical Coupling Of Light Guides (AREA)
Abstract
The utility model discloses a kind of multi-core optical fiber reflectors, comprising: two MT ferrule assemblies are respectively connected to two MTP wire jumper ends；And filter plate, it is set between two MT ferrule assemblies；Wherein, each MT ferrule assembly includes the first multi-core optical fiber lock pin, the second multi-core optical fiber lock pin and the band fibre being connected between the first multi-core optical fiber lock pin and the second multi-core optical fiber lock pin；For accessing MTP wire jumper end, the second multi-core optical fiber lock pin is resisted against on filter plate first multi-core optical fiber lock pin.The multi-core optical fiber reflector of the utility model realizes the function of multi-core optical fiber reflector, compensates for the blank of optical communications industry multi-core optical fiber reflector.And merging precision safeguard way is used, drops to two MT ferrule assembly light passing diameter deviation of the alignment theoretically extremely low.
Description
Technical field
The utility model belongs to fibre reflector technical field, is related to a kind of multi-core optical fiber reflector.
Background technique
Fibre reflector is based on film filtering or Fiber Bragg Grating technology.When light measurement system passes through the front end of optical fiber simultaneously
After the light wave for issuing certain frequency range to the optical fiber filter for being located at optical line terminal, fibre reflector is by specific wavelength
(1650nm ± 5nm or 1625nm ± 5nm) is reflected, and measuring system detects this wavelength, it was demonstrated that and road optical fiber connection is normal,
There is no optical fibre damages and fracture, and other communication wavelengths will not influence normal communication normal through fibre reflector.
With FTTH(fiber to the home) user increases and the extensive application of PON network rapidly, fibre circuit occur therefore
The phenomenon that barrier, is also increasing.When PON network breaks down, network maintenance staff needs quickly and accurately to judge that failure is sent out
Raw route and position, could debug in time, restore communication.Therefore, it is necessary to PON(passive optical-fiber network) line of network
Road operating status carries out real-time monitoring.Physics Joint failure can be found earlier than manually reporting using fibre reflector, and energy
By program overall arrangement, order-preserving fault restoration is completed when guarantor.
Using OTDR(optical time domain reflectometer) detection with the PON network line status of fibre reflector is most simply to use
Method.With the propulsion of 4k video and 5G paces, PON network starts to develop to high density, high-speed, single-core fiber reflector
A large amount of uses have been obtained, and have gradually produced the demand of multi-core optical fiber reflector.In face of growing fibre core quantity, conventional light
Fine reflector is single structure, can only individually detect single line, when in face of the route of high and line number, low efficiency and cost
It is high.
The information disclosed in the background technology section is intended only to increase the understanding to the general background of the utility model, and
It is not construed as recognizing or implying in any form that information composition is already known to those of ordinary skill in the art existing
Technology.
Utility model content
The purpose of this utility model is to provide a kind of multi-core optical fiber reflectors, to overcome the single knot of the prior art
The conventional fiber reflector of structure can only detect single line, can not detect the problem of high and line number route.
To achieve the above object, the utility model provides a kind of multi-core optical fiber reflector, comprising: two MT lock pin groups
Part is respectively connected to two MTP wire jumper ends；And filter plate, it is set between two MT ferrule assemblies；Wherein, each MT
Ferrule assembly is including the first multi-core optical fiber lock pin, the second multi-core optical fiber lock pin and is connected to the first multi-core optical fiber lock pin and more than second
Band between core fibre lock pin is fine；For accessing MTP wire jumper end, the second multi-core optical fiber lock pin is resisted against first multi-core optical fiber lock pin
On filter plate.
In a preferred embodiment, setting is corresponded to each other with fine position on two the first multi-core optical fiber lock pins.
In a preferred embodiment, each MT ferrule assembly further include metal guide pin, spring, contact shell and
Spring is pushed into seat；Wherein, pilot hole is equipped in the first multi-core optical fiber lock pin, metal guide pin is plugged in the first multi-core optical fiber lock pin
On, and stretched out by pilot hole, the first multi-core optical fiber lock pin is placed in contact shell, and spring push-in seat is used for and contact
The snapping of shell, spring and spring push-in cover for seat dress band are fine, the both ends of band fibre respectively with the first multi-core optical fiber lock pin and more than second
The connection of core fibre lock pin.
In a preferred embodiment, the first multi-core optical fiber lock pin is step-like, and its rear end is greater than front end.
In a preferred embodiment, contact shell is rectangular housing, and contact outer casing end is provided with for metal
The stepped hole that guide pin exposes is symmetrically provided with card slot, and stepped hole and the first multi-core optical fiber on contact housing interior side-wall
The big stepped portions of lock pin rear end cooperate.
In a preferred embodiment, spring push-in seat one end is rectangular box-like, and the other end is cylindrical shape, rectangular box-like
The hook step that end is symmetrically provided with the elastic arm stretched in contact shell and is sticked in card slot, spring and spring push away
It takes a seat and is set in band fibre, connect respectively with the first multi-core optical fiber lock pin and the second multi-core optical fiber lock pin with fine both ends.
In a preferred embodiment, multi-core optical fiber reflector further includes lengthening guide needle, and the two of two MT ferrule assemblies
A second multi-core optical fiber lock pin is abutted each other in filter plate, and is positioned by lengthening guide needle.
In a preferred embodiment, multi-core optical fiber reflector further includes being wrapped in the second multi-core optical fiber lock pin and portion
Divide with the protective shell outside fibre, the both ends of protective shell are born against in the spring push-in seat end of two MT ferrule assemblies.
In a preferred embodiment, filled with fixed glue in protective shell.
Compared with prior art, the utility model has the following beneficial effects: the multi-core optical fiber reflector of the utility model
Using grafting filter plate between two multi-core optical fiber lock pins, the function of multi-core optical fiber reflector is realized, optic communication row is compensated for
The blank of industry multi-core optical fiber reflector.Novelty uses merging precision safeguard way, makes two MT ferrule assembly light passing diameters pair
Quasi- deviation theoretically drops to extremely low, and assembling uses manual operation that can have fiber lengths wave when solidify the multi-core optical fiber lock pin at both ends
Dynamic, the sliding groove structure of spring push-in seat and protective shell internal clearance can eliminate that error in length bring optical fiber is too short can not group
The problem of dress or too long micro-bend stressing influence transmit.
Detailed description of the invention
Fig. 1 is the multi-core optical fiber reflector overall structure diagram of preferred embodiment according to the present utility model.
Fig. 2 is the multi-core optical fiber reflector perspective view of the explosion of preferred embodiment according to the present utility model.
Fig. 3 is the another perspective view of the explosion of multi-core optical fiber reflector of preferred embodiment according to the present utility model.
Fig. 4 is the first multi-core optical fiber inserting core structure schematic diagram in the multi-core optical fiber reflector of the preferred embodiment for the present invention.
Fig. 5 is the multi-core optical fiber reflector preparation method flow diagram of the preferred embodiment for the present invention.
Main appended drawing reference explanation:
A, MT ferrule assembly；10, the first multi-core optical fiber lock pin；20, the second multi-core optical fiber lock pin；30, band is fine；40, metal
Guide pin；50, spring；60, contact shell；70, spring is pushed into seat；80, filter plate；90, lengthening guide needle；100, protective shell.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1, Figure 2, Figure 3, Figure 4, according to the multi-core optical fiber reflector of specific embodiment of the present invention, packet
It includes: two MT ferrule assembly A and filter plate 80, wherein two MT ferrule assembly A are respectively connected to two MTP wire jumper ends, filtering
Piece 80 is set between two MT ferrule assembly A.Wherein, each MT ferrule assembly A includes the first multi-core optical fiber lock pin 10, second
Multi-core optical fiber lock pin 20 and the band fibre 30 being connected between the first multi-core optical fiber lock pin 10 and the second multi-core optical fiber lock pin 20；First
For accessing MTP wire jumper end, the second multi-core optical fiber lock pin 20 is resisted against on filter plate 80 multi-core optical fiber lock pin 10.
In a preferred embodiment, the position with fibre 30 on two the first multi-core optical fiber lock pins 10, which corresponds to each other, sets
It sets.Each MT ferrule assembly further includes metal guide pin 40, spring 50, contact shell 60 and spring push-in seat 70.Wherein,
It is equipped with pilot hole 11 in one multi-core optical fiber lock pin 10, metal guide pin 40 is plugged on the first multi-core optical fiber lock pin 10, and is passed through
Pilot hole 11, which stretches out, exposes end face.First multi-core optical fiber lock pin 10 is placed in contact shell 60, and spring push-in seat 70 is used for
With the snapping of contact shell 60, spring 50 and the spring push-in suit band of seat 70 fibre 30, the both ends of band fine 30 are respectively with more than first
Core fibre lock pin 10 and the connection of the second multi-core optical fiber lock pin 20.
Preferably, the first multi-core optical fiber lock pin 10 is step-like, and its rear end is greater than front end.Contact shell 60 is Rectangular shell
Body, 60 end of contact shell are provided with the stepped hole 61 exposed for metal guide pin 50, right on 60 inner sidewall of contact shell
It is provided with card slot (not shown) with claiming, and stepped hole 61 and the big stepped portions 12 of 10 rear end of the first multi-core optical fiber lock pin are matched
It closes, prevents multi-core optical fiber lock pin from deviating from contact shell 60.Spring be pushed into 70 one end of seat be it is rectangular box-like, the other end is cylinder
Shape, the engaging platform that rectangular box-like end is symmetrically provided with the elastic arm 71 stretched in contact shell 60 and is sticked in card slot
Rank 72 completes the snapping with contact shell 60.Spring 50 and spring push-in seat 70 are set in band fibre 30, the both ends with fibre 30 point
It is not connect with the first multi-core optical fiber lock pin 10 and the second multi-core optical fiber lock pin 20.
Above structure constitutes a complete MT ferrule assembly A, and multi-core optical fiber reflector provided in this embodiment includes
Two MT ferrule assembly A, the second multi-core optical fiber lock pin 20 of two MT ferrule assembly A are born against on filter plate 80, and two
The position with fibre 30 on a second multi-core optical fiber lock pin 20 corresponds to each other setting.The first multi-core optical of two MT ferrule assembly A
Fine lock pin 10 is then respectively connected to two MTP wire jumper ends.Multi-core optical fiber reflector provided in this embodiment is connect using MT ferrule assembly A
Filter plate 80, filter plate 80 realizes the reflection to the light of a part of wave band, and makes the light transmission of its all band, realizes multi-core optical
The function of fine reflector compensates for the blank of optical communications industry multicore reflector.
In a preferred embodiment, in order to improve the precision that two MT ferrule assembly A are docked, multi-core optical fiber reflects
Device further includes lengthening guide needle 90, and two the second multi-core optical fiber lock pins 20 of two MT ferrule assemblies are abutted each other in filter plate 80,
And it is positioned by lengthening guide needle 90.
Wherein it is preferred to which two metal guide pins 40 of two MT ferrule assembly A can be according to product requirement, respectively
The long guide pin of MTP male connector and MTP female short guide needle, or be the long guide pin of MTP male connector, or be MTP female short guide needle, or do not install
Guide pin.
In a preferred embodiment, in order to avoid between the second multi-core optical fiber lock pin 20 of two MT ferrule assembly A
Displacement is generated, the light reflection and transmission of wave band is influenced, further includes the second multi-core optical fiber lock pin 20 for being wrapped in two ferrule assemblies
And the protective shell 100 outside part band fine 30, the both ends of protective shell 100 bear against the spring in two MT ferrule assembly A and push away
It takes a seat 70 ends, it is preferable that filled with fixed glue in protective shell 100.
As shown in figure 5, being based on above-mentioned multi-core optical fiber reflector, the present embodiment also provides a kind of based on multi-core optical fiber reflection
The preparation method of device, comprising the following steps:
S100: two the second multi-core optical fiber lock pins are fixed on a band fibre, on two the second multi-core optical fiber lock pins
It is inserted into lengthening guide needle, fixes the relative position between two the second multi-core optical fiber lock pins, is allowed between two the second multi-core optical fiber lock pins
Away from design size.
Wherein the guide pinhole of the first multi-core optical fiber lock pin and the second multi-core optical fiber lock pin can be divided into according to its aperture with lower class
Type: the above are multimode lock pins by ± 1um, and under optical fiber 0.125mm diameter, it is sharp that multimode has 50 or 62.5mm diameter effectively to transmit signal
Light, it is smaller that slight low precision influences insertion loss；It is single mode lock pin less than ± 1um, under optical fiber 0.125mm diameter, single mode has
9.4um diameter effectively transmits signal laser, guide-lighting insertion loss 0.30dB or following；It is that single mode high-precision is inserted less than ± 0.5um
Core can control to 2 lock pins and dock 0.15dB or less insertion loss.
: by the second multi-core optical fiber lock pin that two fix and it is placed in oven with fibre and carries out thermosetting.
The second multi-core optical fiber lock pin that two fix is put into 85 °C of thermosetting 30min of oven.
: the band cut between two parties between two the second multi-core optical fiber lock pins using laser is fine, is formed after two sections of meltings and to be solidified
Optical fiber head tiny spherical surface is enabled with fine guide-lighting core protrusion.
In step S100-300, precision is ensured using merging precision novelty safeguard way, simultaneously using single group band fibre
After two multi-core optical fiber lock pin appropriate lengths, by being cut by laser again after lock pin solidified and located, because of the naturally straight and upright spy of optical fiber
Property, compare after conventional technical means is individually made into two multi-core optical fiber lock pins and dock, completely eliminates two multi-core optical fiber lock pins
Respective 4, respectively micron order deviation so that it is extremely low to allow light passing diameter deviation of the alignment theoretically to drop to ensure that protection to 8,12,16 cores
High-precision docking in shell between two the second multi-core optical fiber lock pins.
, under the microscope, the filter plate of well cutting is inserted into protective shell, because in customization filter plate thickness and protective shell
Fluting precision-fit, filter plate are vertical；Two are fixed with the second fine multi-core optical fiber lock pin along lengthening guide needle, are pushed into protective shell
Interior extremely contact filter plate.
Spring push-in seat and spring are respectively penetrated from fine left and right ends, and spring is fixed on spring with thin wire and is pushed away
On taking a seat.
It should be noted that being pushed away to realize the fixation between the second multi-core optical fiber lock pin and filter plate penetrating spring
It takes a seat and before spring, also needs to complete following fixed step:
S501: under the microscope, using the fixed filter plate of T6100 UV glue and with fine relative position, and in station
It is upper to be irradiated 1.5 minutes using UV LED light, it completes to pre-fix；
Wherein T6100 UV glue is generally used for fiber array and docks with slab guide.
: after accumulation a batch pre-fixes product, it is solid to consolidate completion secondary light in case in UV large area light；
S503: using 353 ND two-component epoxy glue points between two the second multi-core optical fiber lock pins and protective shell；
S504: using 85 DEG C to thermosetting 30 minutes, T6100 glue and epoxy 353ND is made to obtain sufficient thermosetting.In the step
In, protective shell is that injection molding is formed, and is solidified after assembling using glue sealing, forms the sealed environment of water proof and dust proof, protects interior lights
Device is not affected by environment.
: the first multi-core optical fiber lock pin is being respectively penetrated with fine left and right ends, is being placed in thermosetting in oven.It specifically includes:
S601: 85 DEG C of thermosetting 30min are used；
S602: it is pushed between seat and protective shell using 353ND two-component epoxy glue point in spring；
S603: assembling inspection parameter buckles cover board after qualified, using 353ND two-component glue point in cover board and protective shell
Gap；
S604: using 100 DEG C thermosetting 1 hour, and T6100 glue and epoxy 353ND is made to complete secondary thermosetting.
So far, all 353 ND, T6100 glue obtain final good solidification.
: according to product delivery requirements, installed on two multi-core optical fiber lock pins male connector long guide pin or female it is short
Guide pin, or guide pin is not installed.
Before guide pin is installed, need to carry out grinding test to the first multi-core optical fiber lock pin.
: assembling contact shell completes assembling product.
In this step, it is pushed between seat and contact shell in spring and is provided with sliding groove structure, it is micro- by sliding groove structure
Spring is adjusted to be pushed into seat to the position for being properly inserted in contact shell.
Being respectively connected to MTP wire jumper end on two the first multi-core optical fiber lock pins can be realized reflection function.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (9)
1. a kind of multi-core optical fiber reflector, which is characterized in that the multi-core optical fiber reflector includes:
Two MT ferrule assemblies are respectively connected to two MTP wire jumper ends；And
Filter plate is set between two MT ferrule assemblies；
Wherein, each MT ferrule assembly includes the first multi-core optical fiber lock pin, the second multi-core optical fiber lock pin and is connected to described
Band between first multi-core optical fiber lock pin and the second multi-core optical fiber lock pin is fine；The first multi-core optical fiber lock pin is for accessing
MTP wire jumper end, the second multi-core optical fiber lock pin are resisted against on the filter plate.
2. multi-core optical fiber reflector according to claim 1, which is characterized in that on two the first multi-core optical fiber lock pins
Correspond to each other setting with fine position.
3. multi-core optical fiber reflector according to claim 1, which is characterized in that each MT ferrule assembly further includes gold
Belong to guide pin, spring, contact shell and spring and is pushed into seat；Wherein, pilot hole, institute are equipped in the first multi-core optical fiber lock pin
It states metal guide pin to be plugged on the first multi-core optical fiber lock pin, and is stretched out by the pilot hole, first multi-core optical
Fine lock pin is placed in the contact shell, and the spring push-in seat is for the snapping with the contact shell, the bullet
It is fine that spring and spring push-in cover for seat fill the band, the both ends of the band fibre respectively with the first multi-core optical fiber lock pin and the second multicore
Fiber stub connection.
4. multi-core optical fiber reflector according to claim 3, which is characterized in that the first multi-core optical fiber lock pin is step
Shape, its rear end are greater than front end.
5. multi-core optical fiber reflector according to claim 4, which is characterized in that the contact shell is rectangular housing,
The contact outer casing end is provided with the stepped hole exposed for the metal guide pin, right on the contact housing interior side-wall
It is provided with card slot with claiming, and the big stepped portions of the stepped hole and the first multi-core optical fiber lock pin rear end cooperate.
6. multi-core optical fiber reflector according to claim 5, which is characterized in that spring push-in seat one end is rectangle frame
Shape, the other end are cylindrical shape, and rectangular box-like end is symmetrically provided with the elastic arm stretched in the contact shell and engaging
Hook step in the card slot, the spring and spring push-in cover for seat are fine loaded on the band, the both ends difference of the band fibre
It is connect with the first multi-core optical fiber lock pin and the second multi-core optical fiber lock pin.
7. multi-core optical fiber reflector according to claim 1, which is characterized in that the multi-core optical fiber reflector further includes adding
Long guide pin, the second multi-core optical fiber lock pin of two of two MT ferrule assemblies are abutted each other in the filter plate, and are led to
Cross the lengthening guide needle positioning.
8. multi-core optical fiber reflector according to claim 3, which is characterized in that the multi-core optical fiber reflector further includes packet
The protective shell being wrapped in outside the second multi-core optical fiber lock pin and part band fibre, the both ends of the protective shell bear against in
The spring of two MT ferrule assemblies is pushed into seat end.
9. multi-core optical fiber reflector according to claim 8, which is characterized in that filled with fixation in the protective shell
Glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686361.XU CN208239662U (en) | 2018-05-09 | 2018-05-09 | Multi-core optical fiber reflector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686361.XU CN208239662U (en) | 2018-05-09 | 2018-05-09 | Multi-core optical fiber reflector |
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| Publication Number | Publication Date |
|---|---|
| CN208239662U true CN208239662U (en) | 2018-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820686361.XU Expired - Fee Related CN208239662U (en) | 2018-05-09 | 2018-05-09 | Multi-core optical fiber reflector |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217085A (en) * | 2020-09-25 | 2021-01-12 | 武汉锐科光纤激光技术股份有限公司 | Cladding light stripping device |
-
2018
- 2018-05-09 CN CN201820686361.XU patent/CN208239662U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112217085A (en) * | 2020-09-25 | 2021-01-12 | 武汉锐科光纤激光技术股份有限公司 | Cladding light stripping device |
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Granted publication date: 20181214 |