CN209215642U - The monolith substrate formula coupled structure of planar optical waveguide light splitter - Google Patents
The monolith substrate formula coupled structure of planar optical waveguide light splitter Download PDFInfo
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- CN209215642U CN209215642U CN201822079144.7U CN201822079144U CN209215642U CN 209215642 U CN209215642 U CN 209215642U CN 201822079144 U CN201822079144 U CN 201822079144U CN 209215642 U CN209215642 U CN 209215642U
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- optical fibre
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- chip
- groove
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Abstract
The utility model discloses a kind of monolith substrate formula coupled structures of planar optical waveguide light splitter, its both ends is separately connected input optical fibre and output optical fibre array, substrate is coupled including whole, one end upper surface of whole coupling substrate is equipped with first " V " type groove corresponding with input optical fibre, the other end upper surface of whole coupling substrate is equipped with multiple the second " V " type grooves being parallel to each other and multiple second " V " type grooves form " V " type groove array corresponding with output optical fibre array, the middle part upper surface of whole coupling substrate is equipped with the chip groove for placing PLC chip, the both ends of chip groove are connected with the first " V " type groove and second " V " type groove respectively.The utility model not only increases the stability of coupled structure, hence it is evident that improves the stress deviation in device work, extends device service life, and processing technology and encapsulation process are relatively easy, reduce production difficulty and encapsulation difficulty, reduce processing cost.
Description
Technical field
The utility model relates to a kind of coupled structure of planar optical waveguide light splitter more particularly to a kind of planar optical waveguides
The monolith substrate formula coupled structure of optical splitter.
Background technique
Planar optical waveguide (Planar Lightwave Circuit, PLC) optical splitter is connection optical line terminal and light
The core optical device of network unit, as the core optical passive component of FTTH system, apply passive optical network (EPON, BPON,
GPON etc.) in connection local side and terminal device, major function is to complete the distribution of optical signal power, i.e., equably by optical signal
Multiple outlets or reverse operation respectively are inputted from single or double a imports, and multiple optical signals are imported into single or double joint optical fiber.
When fiber array (FA) inside planar optical waveguide light splitter is coupled with PLC chip, precision, stability etc. are straight
Connect the transmission quality of the overall performance and optical signal that influence device.Improve the light passing performance and optimization of planar optical waveguide light splitter
Device coupling and encapsulating structure, become the developing direction and mainstream of next-generation planar optical waveguide light splitter.
Currently, the production of planar optical waveguide light splitter coupled structure and encapsulation are mainly in terms of following three come raising property
Energy and quality:
1, couple board structure: side substrate is used to place input optical fibre, and Intermediate substrate is used to place PLC chip, another
Side group plate is used to place output optical fibre array；
2, it generallys use the sextuple light field for being closely aligned with method to realize between fiber array and PLC chip to couple, improve
Alignment precision reaches high coupling efficiency；
3, it is bonded after planar optical waveguide chip is aligned with fiber array using adhesive.
Traditional 1 × 8 planar optical waveguide light splitter coupled structure is as shown in Figure 1, include input optical fibre cover board 2, input light
Fine substrate 3, PLC chip substrate 4, output optical fibre array substrate 5 and output optical fibre array cover plate 6, in application, input optical fibre 1 is set
It is pushed down on input optical fibre substrate 3 and with input optical fibre cover board 2, output optical fibre array 7 is placed in output optical fibre array substrate 5 simultaneously
It is pushed down with output optical fibre array cover plate 6, disadvantage is as follows:
1, substrate includes input optical fibre substrate 3, PLC chip substrate 4 and output optical fibre array substrate 5 independent, knot
Structure dispersion, substrate processing technology step is more, and increases encapsulation difficulty；
2, the encapsulation of planar optical waveguide light splitter is related to fiber array and the 6 DOF of optical waveguide is closely aligned with, the technique
Operating procedure is various, complicated for operation, difficulty is big, at high cost, and technical threshold is higher；
3, input optical fibre 1 and output optical fibre array 7 generally are fixed using bonding glue in encapsulation process, and with bonding
Glue connects input optical fibre substrate 3, PLC chip substrate 4 and output optical fibre array substrate 5, is affected by temperature, with device
It is used for a long time, glue denaturation, relative displacement may occur for each component, directly result in coupling efficiency and decline to a great extent or even device damage
It is bad.
Utility model content
The purpose of this utility model is that provides a kind of planar optical waveguide light splitter to solve the above-mentioned problems
Monolith substrate formula coupled structure.
The utility model achieves the above object through the following technical schemes:
A kind of monolith substrate formula coupled structure of planar optical waveguide light splitter, both ends are separately connected input optical fibre and defeated
One end upper surface of fiber array out, including whole coupling substrate, the whole coupling substrate is equipped with one and the input light
The other end upper surface of fine corresponding first " V " type groove, the whole coupling substrate is equipped with multiple second " V " types being parallel to each other
Slot and multiple second " V " type grooves form " V " corresponding with output optical fibre array type groove array, the whole coupling base
The middle part upper surface of plate is equipped with chip groove for placing PLC chip, and the both ends of the chip groove are respectively with described first
" V " type groove and described second " V " type groove are connected.
Further, the both ends end face of the chip groove from bottom to top outward inclination and its end face and it is vertical between
Angle is 8 °.
The utility model has the beneficial effects that:
The utility model is using monolith substrate structure and designs corresponding " V " shape slot, by input optical fibre, output optical fibre array
An entirety is merged into planar optical waveguide chip, that is, PLC chip mounting structure, not only increases the stability of coupled structure,
The stress deviation in device work is significantly improved, extends device service life, and processing technology and encapsulation process are opposite
Simply, production difficulty and encapsulation difficulty are reduced, processing cost is reduced；Oblique 8 ° are carried out by the both ends end face to chip groove
Processing, it is possible to increase return loss guarantees to export stable optical power, realizes the efficient coupling of optical signal, the optimization coupled structure
Coupling efficiency up to 93%.
Detailed description of the invention
Fig. 1 is the schematic perspective view of the coupled structure of conventional planar optical waveguide optical splitter, shows perspective in figure
Effect；
Fig. 2 is that the stereochemical structure of the monolith substrate formula coupled structure of planar optical waveguide light splitter described in the utility model is shown
It is intended to, shows transparent effect in figure；
Solid when Fig. 3 is the monolith substrate formula coupled structure application of planar optical waveguide light splitter described in the utility model
Structural schematic diagram shows transparent effect in figure.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing:
As shown in Figures 2 and 3, the monolith substrate formula coupled structure of planar optical waveguide light splitter described in the utility model,
Its both ends is separately connected input optical fibre 1 and output optical fibre array 7, including whole coupling substrate 9, whole one end for coupling substrate 9
Upper surface is equipped with first " V " type groove 8 corresponding with input optical fibre 1, and the whole other end upper surface for coupling substrate 9 is equipped with more
A the second " V " type groove being parallel to each other and multiple second " V " type groove formation " V " type groove corresponding with output optical fibre array 7
Array 12, the whole middle part upper surface for coupling substrate 9 are equipped with the chip groove 10 for placing PLC chip 13, chip groove 10
All described second " V " type grooves respectively with described first " V " type groove 1 and " V " type groove array 12 of both ends be connected；Chip
The both ends end face 11 of groove 10 from bottom to top outward inclination and its end face 11 and it is vertical between angle be 8 °.
As shown in Figures 2 and 3, in application, PLC chip 13 is fixed in chip groove 10 when installing using adhesive, the
It is fixed the corresponding installation of input optical fibre 1 and with adhesive with cover board (not shown) in one " V " type groove 8, on " V " type groove array 12
It is fixed the corresponding installation of output optical fibre array 7 and with adhesive with cover board (not shown).When work, temperature rises, input light
There are gaps to be able to carry out buffering for fibre 1 and output optical fibre array 7, due to coupling substrate 9 using whole, so worker's transferring device
When accidentally fall or situations such as working environment shakes the stress that generates also be difficult to make input optical fibre 1 and output optical fibre array 7 with
Biggish relative displacement occurs for the coupling unit of PLC chip 13, to considerably increase stability when device work, extender
The service life of part.
Device size can be such that whole coupling substrate 9 is 30mm long, width 3mm, high 3mm, and the left and right ends part 8mm is used for
" V " type groove is processed to place input optical fibre 1 and output optical fibre array 7；The length of chip groove 10 is 14mm, width 2mm, depth
Degree is 1mm；The overall width for placing output optical fibre array 7 is 2mm.
Illustrate: above-mentioned whole coupling substrate 9 is that traditional coupled structure is no, whole first " V " type coupled on substrate 9
Slot 8, " V " type groove array 12, chip groove 10 respectively with the " V " shape slot on input optical fibre substrate 3, output optical fibre array substrate 5
On " V " type groove array, the groove on PLC chip substrate 4 it is corresponding, but its overall structure is different, so using different
Reference numerals；The input optical fibre 1 of Fig. 2 and Fig. 3 and the input optical fibre 1 of output optical fibre array 7 and Fig. 1 and output optical fibre array 7 are complete
It is complete corresponding and identical, so using identical reference numerals.In addition, according to needs are applied, above-mentioned input optical fibre 1 is also possible to
Fiber array, output optical fibre array 7 are also possible to individual output optical fibre, and corresponding " V " shape slot then can adaptive change.
Above-described embodiment is the preferred embodiment of the utility model, is not the limit to technical solutions of the utility model
System, as long as being regarded as falling into without the technical solution that creative work can be realized on the basis of the above embodiments
In the rights protection scope of the utility model patent.
Claims (2)
1. a kind of monolith substrate formula coupled structure of planar optical waveguide light splitter, both ends are separately connected input optical fibre and output
Fiber array, it is characterised in that: couple substrate including whole, one end upper surface of the whole coupling substrate is equipped with one and institute
State corresponding first " V " type groove of input optical fibre, the other end upper surface of the whole coupling substrate is equipped with multiple be parallel to each other
Second " V " type groove and multiple described second " V " type groove formation " V " corresponding with output optical fibre array type groove arrays, it is described
The middle part upper surface of whole coupling substrate is equipped with the chip groove for placing PLC chip, the both ends difference of the chip groove
It is connected with the described first " V " type groove and described second " V " type groove.
2. the monolith substrate formula coupled structure of planar optical waveguide light splitter according to claim 1, it is characterised in that: institute
State the both ends end face of chip groove from bottom to top outward inclination and its end face and it is vertical between angle be 8 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079144.7U CN209215642U (en) | 2018-12-12 | 2018-12-12 | The monolith substrate formula coupled structure of planar optical waveguide light splitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822079144.7U CN209215642U (en) | 2018-12-12 | 2018-12-12 | The monolith substrate formula coupled structure of planar optical waveguide light splitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209215642U true CN209215642U (en) | 2019-08-06 |
Family
ID=67464208
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822079144.7U Expired - Fee Related CN209215642U (en) | 2018-12-12 | 2018-12-12 | The monolith substrate formula coupled structure of planar optical waveguide light splitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209215642U (en) |
-
2018
- 2018-12-12 CN CN201822079144.7U patent/CN209215642U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20211212 |
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| CF01 | Termination of patent right due to non-payment of annual fee |