CN214335297U - Parallel light lens type wavelength division multiplexer - Google Patents
Parallel light lens type wavelength division multiplexer Download PDFInfo
- Publication number
- CN214335297U CN214335297U CN202022728386.1U CN202022728386U CN214335297U CN 214335297 U CN214335297 U CN 214335297U CN 202022728386 U CN202022728386 U CN 202022728386U CN 214335297 U CN214335297 U CN 214335297U
- Authority
- CN
- China
- Prior art keywords
- fiber
- glass tube
- tail
- double
- lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Optical Couplings Of Light Guides (AREA)
Abstract
The utility model discloses a wavelength division multiplexer of parallel light lens formula, it includes double fiber collimator, single fiber collimator and is used for encapsulating double fiber collimator and single fiber collimator's glass pipe, realizes the optical signal transmission of a plurality of wavelengths in single mode fiber. All glass components of the utility model are formed by bonding glue, the connection of the glass tubes utilizes the wrapping glue to realize the self-adaptive ball joint structure, so that the manufacturing process is greatly simplified, the huge bandwidth resource of the optical fiber can be fully utilized, and the transmission capacity of the optical fiber is increased by several times to dozens of times compared with the single-wavelength transmission; multiple wavelengths are transmitted in a single-mode optical fiber in a multiplexing mode, and a large number of optical fibers can be saved during large-capacity long-distance transmission; meanwhile, for cables with a small number of cores installed in the early stage, the number of cores is small, and the capacity can be expanded conveniently by utilizing wavelength division multiplexing without greatly changing an original system.
Description
Technical Field
The utility model relates to a wavelength division multiplexer of parallel light lens formula.
Background
With the application of 5G base stations, the wavelength division multiplexer of CWDM device, or coarse wavelength division multiplexing technology, increases the IP data service of Internrt at a high speed, which leads to an increasing demand for transmission line bandwidth. The coarse wavelength division multiplexer can effectively save optical fiber resources and networking cost, solves the problems of optical fiber shortage, multi-service transparency, shortening of network construction time and the like, and has the advantages of low cost, low power consumption, small size and the like, so that various large operators and system integrators find a low-price and high-performance transmission solution.
The traditional CWDM wavelength division multiplexer dual-fiber collimator is assembled by using a C lens, but the light-focusing surface of the C lens is a spherical surface with amplitude, so that it cannot be directly glued with the filter, and thus a connecting pipe is required to connect two components (as shown in fig. 1). The lens of the parallel light can just solve the problem, the process is simple, one less process and material are needed in the whole process, and the cost is greatly improved.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving the above problems by providing a solution that enables multiplexing of a plurality of wavelengths for transmission in a single-mode optical fiber at a low cost and high performance.
In order to achieve the above purpose, the utility model is realized by the following technical scheme: a parallel light lens type wavelength division multiplexer comprises a dual-fiber collimator, a single-fiber collimator and a glass tube used for packaging the dual-fiber collimator and the single-fiber collimator, and realizes transmission of optical signals with multiple wavelengths in a single-mode optical fiber, wherein:
the dual-fiber collimator comprises a parallel light lens, a filter plate glued on one side of the light transmission surface of the parallel light lens and a dual-fiber pigtail glass tube glued on the other side of the parallel light lens; one end of the double-fiber tail fiber glass tube is arc-shaped, and a plurality of groups of optical fibers penetrate into the double-fiber tail fiber glass tube from one end of the arc-shaped double-fiber tail fiber glass tube and extend into the joint of the double-fiber tail fiber glass tube and the parallel light lens; the outer side of the joint of the double-fiber tail fiber glass tube and the parallel light lens is also provided with wrapping glue, and the double-fiber tail fiber glass tube and the parallel light lens are glued;
the single-fiber collimator comprises a C lens and a single-fiber tail fiber glass tube glued on one side of the C lens; one end of the single-fiber tail fiber glass tube is arc-shaped, and a single group of optical fibers penetrate into the single-fiber tail fiber glass tube from one end of the arc-shaped single-fiber tail fiber glass tube and extend into the joint of the single-fiber tail fiber glass tube and the C lens;
glass tubes for packaging the double-fiber collimator and the single-fiber collimator are arranged outside the double-fiber collimator and the single-fiber collimator; an outer sealing rigid pipe is sleeved on the outer side of the glass pipe, one side of the outer sealing rigid pipe is fixed with a double-fiber tail sheath through an outer sealing rigid pipe cap, and the other side of the outer sealing rigid pipe is fixed with a single-fiber tail sheath through an outer sealing rigid pipe cap; the single-fiber tail sheath is sleeved at the tail part of the single-fiber tail fiber glass tube, and the double-fiber tail sheath is sleeved at the tail part of the double-fiber tail fiber glass tube to respectively play a role in protecting optical fibers.
Furthermore, the tail part of the parallel light lens and the joint of the double-fiber tail fiber glass tube are parallel to each other, and form an included angle of 8 degrees with the vertical direction; the tail part of the C lens and the joint of the single-fiber tail fiber glass tube are parallel to each other and form an included angle of 8 degrees with the vertical direction.
Further, the length of the double-fiber tail fiber glass tube is 6 mm; the length of the single fiber tail fiber glass tube is 8 mm; the length of the glass tube was 18 mm.
To sum up the utility model discloses following beneficial effect has: all glass components of the utility model are formed by bonding glue, the connection of the glass tubes utilizes the wrapping glue to realize the self-adaptive ball joint structure, so that the manufacturing process is greatly simplified, the huge bandwidth resource of the optical fiber can be fully utilized, and the transmission capacity of the optical fiber is increased by several times to dozens of times compared with the single-wavelength transmission; multiple wavelengths are transmitted in a single-mode optical fiber in a multiplexing mode, and a large number of optical fibers can be saved during large-capacity long-distance transmission; meanwhile, for cables with a small number of cores installed in the early stage, the number of cores is small, and the capacity can be expanded conveniently by utilizing wavelength division multiplexing without greatly changing an original system.
Drawings
Fig. 1 is a schematic diagram of a conventional CWDM wavelength division multiplexer;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic cross-sectional view of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the following examples, which are not intended to limit the invention.
As shown in fig. 2 and 3, a parallel light lens type wavelength division multiplexer includes a dual-fiber collimator, a single-fiber collimator, and a glass tube for encapsulating the dual-fiber collimator and the single-fiber collimator, and realizes transmission of optical signals with multiple wavelengths in a single-mode optical fiber, in which:
the double-fiber collimator comprises a parallel light lens 1, a filter plate 2 glued on one side of the light transmission surface of the parallel light lens 1 and a double-fiber pigtail glass tube 3 glued on the other side of the parallel light lens 1; one end of the double-fiber tail fiber glass tube 3 is arc-shaped, and a plurality of groups of optical fibers penetrate into the double-fiber tail fiber glass tube 3 from one end of the arc-shaped double-fiber tail fiber glass tube 3 and extend into the joint of the double-fiber tail fiber glass tube 3 and the parallel light lens 1; the outer side of the joint of the double-fiber tail fiber glass tube 3 and the parallel light lens 1 is also provided with a wrapping adhesive 4, and the double-fiber tail fiber glass tube 3 and the parallel light lens 1 are adhered;
the single-fiber collimator comprises a C lens 5 and a single-fiber tail fiber glass tube 6 glued on one side of the C lens 5; one end of the single-fiber tail fiber glass tube 6 is arc-shaped, and a single group of optical fibers penetrate into the single-fiber tail fiber glass tube 6 from one end of the arc-shaped single-fiber tail fiber glass tube 6 and extend into the joint of the single-fiber tail fiber glass tube 6 and the C lens 5;
glass tubes 7 used for packaging the double-fiber collimator and the single-fiber collimator are arranged outside the double-fiber collimator and the single-fiber collimator; an outer sealing rigid pipe 8 is sleeved on the outer side of the glass pipe 7, one side of the outer sealing rigid pipe 8 is fixed with a double-fiber tail sheath 10 through an outer sealing rigid pipe cap 9, and the other side of the outer sealing rigid pipe 8 is fixed with a single-fiber tail sheath 11 through an outer sealing rigid pipe cap; the single-fiber tail sheath 11 is sleeved at the tail part of the single-fiber tail fiber glass tube 6, and the double-fiber tail sheath 10 is sleeved at the tail part of the double-fiber tail fiber glass tube 3 to respectively play a role in protecting optical fibers.
In order to reduce coaxial return loss, the tail part of the parallel light lens 1 and the joint of the double-fiber pigtail glass tube 3 are parallel to each other, and form an included angle of 8 degrees with the vertical direction; the tail part of the C lens 5 and the joint of the single fiber tail fiber glass tube 6 are parallel to each other, and an included angle of 8 degrees is formed between the tail part and the vertical direction.
The length of the double-fiber tail fiber glass tube is 6 mm; the length of the single fiber tail fiber glass tube is 8 mm; the length of the glass tube was 18 mm.
Optical signal input wavelength lambda from common end of double-fiber collimator1And wavelength lambda2～NCollimated by a parallel light lens 1 and then incident on a filter plate 2, and a signal lambda2～NThe generated reflection port is converged at the reflection end for output; signal lambda1And the transmission occurs, and the light is collimated by the C lens 5 to a single-fiber collimator to be converged at a transmission port and output from a transmission end.
The above embodiment is the preferred embodiment of the present invention, which is only used to facilitate the explanation of the present invention, it is not right to the present invention, which makes the restriction on any form, and any person who knows commonly in the technical field can use the present invention to make the equivalent embodiment of local change or modification without departing from the technical features of the present invention.
Claims (3)
1. The utility model provides a wavelength division multiplexer of parallel light lens formula, it includes double fiber collimator, single fiber collimator and is used for the glass pipe of encapsulation double fiber collimator and single fiber collimator, realizes the optical signal transmission of a plurality of wavelength in single mode fiber, its characterized in that:
the dual-fiber collimator comprises a parallel light lens, a filter plate glued on one side of the light transmission surface of the parallel light lens and a dual-fiber pigtail glass tube glued on the other side of the parallel light lens; one end of the double-fiber tail fiber glass tube is arc-shaped, and a plurality of groups of optical fibers penetrate into the double-fiber tail fiber glass tube from one end of the arc-shaped double-fiber tail fiber glass tube and extend into the joint of the double-fiber tail fiber glass tube and the parallel light lens; the outer side of the joint of the double-fiber tail fiber glass tube and the parallel light lens is also provided with wrapping glue, and the double-fiber tail fiber glass tube and the parallel light lens are glued;
the single-fiber collimator comprises a C lens and a single-fiber tail fiber glass tube glued on one side of the C lens; one end of the single-fiber tail fiber glass tube is arc-shaped, and a single group of optical fibers penetrate into the single-fiber tail fiber glass tube from one end of the arc-shaped single-fiber tail fiber glass tube and extend into the joint of the single-fiber tail fiber glass tube and the C lens;
glass tubes for packaging the double-fiber collimator and the single-fiber collimator are arranged outside the double-fiber collimator and the single-fiber collimator; an outer sealing rigid pipe is sleeved on the outer side of the glass pipe, one side of the outer sealing rigid pipe is fixed with a double-fiber tail sheath through an outer sealing rigid pipe cap, and the other side of the outer sealing rigid pipe is fixed with a single-fiber tail sheath through an outer sealing rigid pipe cap; the single-fiber tail sheath is sleeved at the tail part of the single-fiber tail fiber glass tube, and the double-fiber tail sheath is sleeved at the tail part of the double-fiber tail fiber glass tube to respectively play a role in protecting optical fibers.
2. A parallel-light-lens type wavelength division multiplexer according to claim 1, wherein: the tail part of the parallel light lens and the joint of the double-fiber tail fiber glass tube are parallel to each other and form an included angle of 8 degrees with the vertical direction; the tail part of the C lens and the joint of the single-fiber tail fiber glass tube are parallel to each other and form an included angle of 8 degrees with the vertical direction.
3. A parallel-light-lens type wavelength division multiplexer according to claim 1, wherein: the length of the double-fiber tail fiber glass tube is 6 mm; the length of the single fiber tail fiber glass tube is 8 mm; the length of the glass tube was 18 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022728386.1U CN214335297U (en) | 2020-11-23 | 2020-11-23 | Parallel light lens type wavelength division multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022728386.1U CN214335297U (en) | 2020-11-23 | 2020-11-23 | Parallel light lens type wavelength division multiplexer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214335297U true CN214335297U (en) | 2021-10-01 |
Family
ID=77896061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022728386.1U Active CN214335297U (en) | 2020-11-23 | 2020-11-23 | Parallel light lens type wavelength division multiplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214335297U (en) |
-
2020
- 2020-11-23 CN CN202022728386.1U patent/CN214335297U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205229520U (en) | Two -way BOSA structure of single fiber | |
| CN202713311U (en) | Novel wavelength division multiplexing and de-multiplexing optical assembly applied to high-speed parallel long-distance transmission | |
| CN201812067U (en) | Single optical fiber bidirectional light receiving-transmitting assembly for OLT (optical line terminal) | |
| CN102684794A (en) | Novel wavelength division multiplexing demultiplexing optical assembly applied to high-speed parallel long-distance transmission | |
| CN111929771A (en) | WDM wavelength division multiplexing module | |
| CN105824085A (en) | Multichannel integrated light emitting module structure with isolators | |
| CN113777717A (en) | Multi-core optical fiber fan-in and fan-out module and manufacturing method thereof | |
| CN113359252B (en) | Multi-channel optical module with single fan-in fan-out based on MPO interface | |
| CN107037546A (en) | A kind of coupled structure of fiber array and PD arrays | |
| CN214335297U (en) | Parallel light lens type wavelength division multiplexer | |
| CN206946027U (en) | A kind of space multiplex optical module of multi-chip package | |
| CN206892395U (en) | 3 x 0 wave division multiplexer | |
| CN102882602A (en) | Silicon photonic integrated multi-wavelength single-port transmission and receiving optical device | |
| CN211426855U (en) | 5G application plug type wavelength division multiplexer | |
| CN201886180U (en) | Optical component for ONU (optical network unit) end of ten-gigabit EPON (Ethernet passive optical network) | |
| CN206248883U (en) | Optical wavelength division multiplexer | |
| CN202872792U (en) | A multi-wavelength single-port transmitting and receiving optical device using silicon photon integration technology | |
| CN113433629B (en) | Multi-channel optical module with double fan-in fan-out based on MPO interface | |
| CN113359253B (en) | Multi-channel optical module based on single LC interface | |
| CN216351376U (en) | Novel dense wavelength division multiplexing single-fiber three-dimensional optical device | |
| CN205910372U (en) | Compact coarse wavelength division multiplexing optical device | |
| CN206400142U (en) | 4 x 0 wave division multiplexer | |
| CN201986098U (en) | Coarse wavelength division multiplexing photoelectric device of ten-thousand XGPON (10 Gigabit-passive optical network) optical network unit | |
| CN208125954U (en) | A kind of fiber array with lens-optical waveguide array parallel coupling adapter | |
| CN113341514A (en) | Multichannel optical module based on double LC interfaces |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |