CN209148904U - Multimode fibre and single mode optical fiber mode converter - Google Patents
Multimode fibre and single mode optical fiber mode converter Download PDFInfo
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- CN209148904U CN209148904U CN201822239928.1U CN201822239928U CN209148904U CN 209148904 U CN209148904 U CN 209148904U CN 201822239928 U CN201822239928 U CN 201822239928U CN 209148904 U CN209148904 U CN 209148904U
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- optical fiber
- multimode
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- mode
- fiber
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 48
- 239000000835 fiber Substances 0.000 title claims description 33
- 239000011521 glass Substances 0.000 claims abstract description 17
- 238000004026 adhesive bonding Methods 0.000 claims abstract description 4
- 239000011152 fibreglass Substances 0.000 claims description 12
- 150000001875 compounds Chemical class 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 11
- 239000011148 porous material Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 239000003292 glue Substances 0.000 claims description 2
- 238000007789 sealing Methods 0.000 claims 1
- 230000003287 optical effect Effects 0.000 abstract description 19
- 238000006243 chemical reaction Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 8
- 238000004891 communication Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 210000004027 cell Anatomy 0.000 description 1
- 210000004081 cilia Anatomy 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000005622 photoelectricity Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model relates to a kind of multimode fibres and single mode optical fiber mode converter, belong in optical communication network, and multimode optical signal is converted to the passive device of single mode optical signal.Outer glass sleeve is placed on the outside of multimode single optical fiber calibrator and single mode single optical fiber calibrator, and passes through the gluing of outer glass sleeve both ends inner wall, make its both ends inner wall respectively with multimode single optical fiber calibrator and single mode single optical fiber calibrator fixed bonding.Advantage is structure novel, is directly coupled to optical signal, not will cause the loss or distortion of information；For passive device, do not need to provide power supply in the course of work, occupied space is smaller, conversion process is not necessarily to photoelectric conversion and signal processing, the photoelectric cells such as photodiode, laser are not needed, without providing external power supply when work, therefore its cost of arranging net is far below traditional mode converter.
Description
Technical field
The utility model relates in optical communication network, realize that the multimode optical signal transmitted in multimode fibre is converted to single-mode optics
The passive device of the single mode optical signal transmitted in fine.
Background technique
With the development of optical fiber industry, fiber products are multi-field comprising communication, medical treatment, military project etc. using more and more extensive,
Industry is also gradually standardized simultaneously, is designed from system, and optical fiber selection, the various aspects such as communication protocol are gradually unified.Part fiber passes
The optical fibre devices such as sensor, optical fiber laser or part Small Extension Node. Communications network still have using multimode fibre structure.To make itself and list
The interconnection of mode fiber system is compatible, we need to carry out mode conversion to optical signal in connection procedure.To realize this function
It can, it is common practice that multimode optical signal is first converted into electric signal, then electric signal is converted into optical signal transmission again and enters single mode
Optical fiber.
But traditional mode converter has following drawback: first is that problem of dtmf distortion DTMF, since the transfer principle is to have needed
At the mutual conversion of photosignal twice, the loss or distortion of signal are be easy to cause in conversion process；Second is that environmental problem, this turn
There is electric signal participation during changing, it is therefore desirable to it is used under active environment, it outdoors can not in environment or limited power environment
It uses, while the equipment also needs certain space to be arranged；Three cost problems, the conversion equipment need to carry out photoelectricity twice
Conversion and signal processing, therefore its higher cost, the system for being not suitable for more switching nodes use.
Single mode can be directly connected to multimode conversion process in general modes of communication systems conversion process, and multimode is to single mode
It is will cause when conversion compared with lossy,
Summary of the invention
The utility model provides a kind of multimode fibre and single mode optical fiber mode converter, to solve current mode change system
Existing distorted signals is limited to environment and problem at high cost.
The technical scheme adopted by the utility model is that: outer glass sleeve is placed on multimode single optical fiber calibrator and single mode single fiber
On the outside of collimator, and pass through the gluing of outer glass sleeve both ends inner wall, make its both ends inner wall respectively with multimode single optical fiber calibrator
With single mode single optical fiber calibrator fixed bonding.
The structure of the multimode single optical fiber calibrator is: multimode tapered fiber is placed in the hair of multimode single fiber glass capillary
In pore, blend compounds water is adhesively fixed, and self-focusing lens is opposite with multimode single fiber glass capillary inclined-plane, is placed in multimode collimation
In device glass sleeve, blend compounds water-stop is fixed.
The structure of the single mode single optical fiber calibrator is: single mode optical fiber is placed in the pore of single mode single fiber glass capillary
Interior, blend compounds water is adhesively fixed, and spherical focusing lens are opposite with single mode single fiber glass capillary inclined-plane, are placed in single mode collimator
In glass sleeve, blend compounds water-stop is fixed.
The utility model has the advantages that structure novel, directly couples optical signal, converted without signal or processed
Journey, therefore not will cause the loss or distortion of information；For passive device, only by the optical coupled optical signal that realizes from multimode system
It unites to the conversion of single-mode system, active equipment is not used in the whole process, do not need to provide power supply, therefore its in the course of work
Applicable various working environments, while it does not need mating power supply and supports, occupied space is smaller；Realize multimode transmissions system and list
The passive connection of the low-loss of mould Transmission system greatly simplifies the mode conversion links in communication system, and can reduce and be
System cost；Conversion process is not necessarily to photoelectric conversion and signal processing, does not need the photoelectric cells such as photodiode, laser, works
When without providing external power supply, therefore its cost of arranging net is far below traditional mode converter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of the utility model multimode single optical fiber calibrator；
Fig. 3 is that the structure that the utility model multimode tapered fiber is placed in the pore of multimode single fiber glass capillary is shown
It is intended to；
Fig. 4 is the right view of Fig. 3；
Fig. 5 is the left view of Fig. 3；
Fig. 6 is the structural schematic diagram of the utility model multimode tapered fiber；
Fig. 7 is the structural schematic diagram of the utility model single mode single optical fiber calibrator.
Specific embodiment
As shown in Figure 1, outer glass sleeve 1 is placed on 3 outside of multimode single optical fiber calibrator 2 and single mode single optical fiber calibrator, and
By the gluing of outer glass sleeve both ends inner wall, make its both ends inner wall respectively with multimode single optical fiber calibrator 2 and single mode single fiber
3 fixed bonding of collimator；
As shown in Fig. 2,3,4,5,6, the structure of the multimode single optical fiber calibrator 2 is: multimode tapered fiber 201 is placed in more
In the pore of mould single fiber glass capillary 202, blend compounds water is adhesively fixed, self-focusing lens 203 and multimode monochromatic light cilium
202 inclined-plane of thin glass tube is opposite, is placed in multimode collimator glass sleeve 204, and blend compounds water-stop is fixed；
As shown in fig. 7, the structure of the single mode single optical fiber calibrator 3 is: single mode optical fiber 301 is placed in single mode single fiber capillary
In the pore of glass tube 302, blend compounds water is adhesively fixed, spherical focusing lens 303 and single mode single fiber glass capillary 302
Inclined-plane is opposite, is placed in single mode collimator glass sleeve 304, and blend compounds water-stop is fixed.
Illustrate the working principle of the utility model in conjunction with attached drawing below.
Cone multimode fibre 201 is drawn to be used as signal input part in multimode single optical fiber calibrator 2 (Fig. 2), by making after collimator
Optical signal in multimode fibre becomes collimated light beam；Collimated collimated light beam is exported from 203 right angle end face of self-focusing lens；
The optical signal issued from multimode fibre collimator front end plays the ball in the spherical focusing lens 303 of single mode fiber collimator 3 (Fig. 7)
On shape end face, export this beam optical signal from the single mode optical fiber 301 of single mode single optical fiber calibrator.
The effect of multimode single optical fiber calibrator 2 be the optical signal for transmitting out in multimode fibre is carried out convergence collimation,
Make it be easier to intercouple with single mode single optical fiber calibrator 3, fused biconical taper (Fig. 6) is carried out to input terminal multimode fibre, is selected simultaneously
The self-focusing lens for selecting small light spot, to constrain spot size and beam divergence angle；The effect of single mode single optical fiber calibrator 3 is to connect
The collimated light signal that multimode single optical fiber calibrator 2 issues is received, needs to make the optical signal spot size and light of single mode fiber collimator
Beam divergence angle is mutually matched with a branch of optical signal that multimode single optical fiber calibrator transmits；For example, making that cone multimode fibre 201 is drawn to go out
Fiber size at mouthful are as follows: covering 12.5um, sandwich layer 10um require selection spherical focusing lens 303 to reach to be mutually matched
Globe lens refractive index 1.745, curvature 2.8；
As shown in Fig. 3,4,5, multimode tapered fiber 201 is placed in the pore of multimode single fiber glass capillary 202, and
It is adhesively fixed with glue, that is, constitutes multimode single fiber tail optical fiber, effect has two o'clock, one is fixed optical fiber, is convenient for subsequent behaviour
Make, since optical fiber is thin and crisp, is extremely easily damaged and is not fixed easily if directly operated to it, it is right using glass capillary 202
It more convenient can grind it after fixing, plated film, the subsequent operations such as adjusting；Second effect is control multimode single fiber
The beam properties of collimator go out light end core size by drawing cone to reduce optical fiber multimode fibre, to control subsequent collimation
Device beam properties can achieve it is required within the scope of.
Claims (3)
1. a kind of multimode fibre and single mode optical fiber mode converter, it is characterised in that: it is quasi- that outer glass sleeve is placed on multimode single fiber
On the outside of straight device and single mode single optical fiber calibrator, and pass through the gluing of outer glass sleeve both ends inner wall, make its both ends inner wall respectively with
Multimode single optical fiber calibrator and single mode single optical fiber calibrator fixed bonding.
2. a kind of multimode fibre according to claim 1 and single mode optical fiber mode converter, it is characterised in that: the multimode
The structure of single optical fiber calibrator is: multimode tapered fiber is placed in the pore of multimode single fiber glass capillary, blend compounds water
It being adhesively fixed, self-focusing lens is opposite with multimode single fiber glass capillary inclined-plane, is placed in multimode collimator glass sleeve, and
It is fixed with glue sealing.
3. a kind of multimode fibre according to claim 1 or 2 and single mode optical fiber mode converter, it is characterised in that: described
The structure of single mode single optical fiber calibrator is: single mode optical fiber is placed in the pore of single mode single fiber glass capillary, blend compounds water
It being adhesively fixed, spherical focusing lens are opposite with single mode single fiber glass capillary inclined-plane, are placed in single mode collimator glass sleeve,
Blend compounds water-stop is fixed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239928.1U CN209148904U (en) | 2018-12-28 | 2018-12-28 | Multimode fibre and single mode optical fiber mode converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822239928.1U CN209148904U (en) | 2018-12-28 | 2018-12-28 | Multimode fibre and single mode optical fiber mode converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209148904U true CN209148904U (en) | 2019-07-23 |
Family
ID=67291002
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822239928.1U Active CN209148904U (en) | 2018-12-28 | 2018-12-28 | Multimode fibre and single mode optical fiber mode converter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209148904U (en) |
-
2018
- 2018-12-28 CN CN201822239928.1U patent/CN209148904U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Multimode fiber to single-mode fiber mode converter Effective date of registration: 20230410 Granted publication date: 20190723 Pledgee: Jilin Bank Co.,Ltd. Changchun Science and Technology Sub branch Pledgor: Changchun Huaxin Kerui Photoelectric Technology Co.,Ltd. Registration number: Y2023220000025 |
|
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Granted publication date: 20190723 Pledgee: Jilin Bank Co.,Ltd. Changchun Science and Technology Sub branch Pledgor: Changchun Huaxin Kerui Photoelectric Technology Co.,Ltd. Registration number: Y2023220000025 |