CN208444050U - A kind of visible light wave division multiplexer - Google Patents
A kind of visible light wave division multiplexer Download PDFInfo
- Publication number
- CN208444050U CN208444050U CN201821291971.6U CN201821291971U CN208444050U CN 208444050 U CN208444050 U CN 208444050U CN 201821291971 U CN201821291971 U CN 201821291971U CN 208444050 U CN208444050 U CN 208444050U
- Authority
- CN
- China
- Prior art keywords
- grating
- division multiplexer
- visible light
- wavelength
- substrate portion
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of visible light wave division multiplexers, including wavelength division multiplexer shell, self-focusing lens, grating, the grating is located at the side of the self-focusing lens, the grating includes grating substrate portion and the grating portion positioned at grating substrate portion side, the grating portion is process using photoetching technique, is coated with anti-reflecting layer on the surface in the grating substrate portion.After incident light is irradiated on grating, due to the dispersion interaction of grating, the visible light signal of different wave length reflects at different angles, then different output optical fibres is converged to by self-focusing lens, to complete the selection function of wavelength, to realize the separation of different wave length, inverse process is equally possible, to realize the merging of wavelength, to realize the effect of wavelength-division multiplex, by at grating substrate portion, grating portion, anti-reflecting layer structure, grating being enabled to have the advantages that high light transmittance, diffraction efficiency height, big bandwidth of operation, polarization are unrelated Grating Design.
Description
Technical field
The utility model relates to wavelength division multiplexer technical field more particularly to a kind of visible light wave division multiplexers.
Background technique
With the arrival of information age, demand of the people to optic communication bandwidth increasingly increases.Increase the method for optical path bandwidth
There are two types of, first is that improving the single channel transmission rate of optical fiber；Second is that increasing the number of wavelengths transmitted in single fiber, i.e. wavelength-division multiplex skill
Art.Wavelength division multiplexer English abbreviation WDM is respectively placed in wavelength division multiplexer and demultiplexer (also referred to as multiplexer/demultiplexer)
Optical fiber both ends, realize the coupling of Different lightwave with separate.The main Types of light wavelength division multiplexing have fused tapered, deielectric-coating
Type, grating type and four kinds of plane.Its key property index is insertion loss and isolation.
Traditional visible light wave division multiplexer structure is single, and performance is poor, light transmittance, diffraction efficiency or the work belt of grating
Width etc. is difficult to be increased to satisfactory degree simultaneously.
Utility model content
The utility model in order to overcome the shortcomings in the prior art, provides a kind of visible light wave division multiplexer.
The utility model is achieved through the following technical solutions:
A kind of visible light wave division multiplexer, including wavelength division multiplexer shell, positioned at the wavelength division multiplexer enclosure interior
Self-focusing lens, positioned at the grating of the wavelength division multiplexer enclosure interior, the grating is located at the side of the self-focusing lens,
After incident light is irradiated on grating, due to the dispersion interaction of grating, the visible light signal of different wave length is anti-at different angles
It penetrates；The grating includes grating substrate portion and positioned at the grating portion of grating substrate portion side, and the grating portion uses light
Lithography is process, and is coated with anti-reflecting layer on the surface in the grating substrate portion.
Further, antistatic layer, and the antistatic layer are provided on the inner wall of the wavelength division multiplexer shell
With a thickness of 1-2 millimeters.By being provided with antistatic layer, the antistatic effect of wavelength division multiplexer can be improved.
Further, the anti-reflecting layer is made of carborundum films material, and the anti-reflecting layer with a thickness of 50-
100 microns.
Further, it can also be provided with filter plate between the self-focusing lens and grating, by being provided with filtering
Piece can play the role of filtering.
Compared with prior art, it the beneficial effects of the utility model are: the structure design of the utility model is reasonable, is using
In the process, after incident light is irradiated on grating, due to the dispersion interaction of grating, the visible light signal of different wave length is with different
Angle reflection, then converges to different output optical fibres by self-focusing lens, so that the selection function of wavelength is completed, to realize
The separation of different wave length, inverse process are equally possible, to realize the merging of wavelength, to realize the effect of wavelength-division multiplex, are led to
It crosses Grating Design into grating substrate portion, grating portion, anti-reflecting layer structure, enables to grating that there is light transmittance height, diffraction effect
The unrelated advantage of rate height, big bandwidth of operation, polarization.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
Referring to Fig. 1, a kind of visible light wave division multiplexer, including wavelength division multiplexer shell 1, it is located at the wavelength-division
Self-focusing lens 2 inside multiplexer shell 1, the grating 3 inside the wavelength division multiplexer shell 1, the grating 3 are located at
The side of the self-focusing lens 2, after incident light is irradiated on grating 3, due to the dispersion interaction of grating 3, different wave length
Visible light signal reflects at different angles；The grating 3 is including grating substrate portion 31 and is located at the grating substrate portion 31
The grating portion 32 of side, the grating portion 32 are process using photoetching technique, are coated on the surface in the grating substrate portion 31
Have an anti-reflecting layer 33, the anti-reflecting layer 33 is made of carborundum films material, and the anti-reflecting layer 33 with a thickness of 50-
100 microns.
Referring to Fig. 1, be provided with antistatic layer 11 on the inner wall of the wavelength division multiplexer shell 1, and it is described resist it is quiet
Electric layer 11 with a thickness of 1-2 millimeters.By being provided with antistatic layer 11, the antistatic effect of wavelength division multiplexer can be improved.
Referring to Fig. 1, a kind of visible light wave division multiplexer, can also the self-focusing lens 2 and grating 3 it
Between be provided with filter plate 4, by being provided with filter plate 4, filtering can be played the role of.
The structure design of the utility model is reasonable, in use, after incident light is irradiated on grating 3, due to grating 3
Dispersion interaction, the visible light signal of different wave length reflects at different angles, then converges to difference by self-focusing lens 2
Output optical fibre, to complete the selection function of wavelength, to realize the separation of different wave length, inverse process is equally possible, thus
The merging for realizing wavelength, to realize the effect of wavelength-division multiplex, by by grating 3 be designed to grating substrate portion 31, grating portion 32,
33 structure of anti-reflecting layer enables to grating 3 to have that light transmittance is high, diffraction efficiency is high, big bandwidth of operation, polarization are unrelated excellent
Point.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Be only the utility model preference, be not intended to limit the utility model, do not departing from the spirit and scope of the utility model
Under the premise of, the utility model also has various changes and improvements, these changes and improvements both fall within claimed it is practical
In novel range.The protection scope of the present invention is defined by the appended claims and their equivalents.
Claims (4)
1. a kind of visible light wave division multiplexer, it is characterised in that: including wavelength division multiplexer shell (1), be located at the wavelength-division multiplex
The internal self-focusing lens (2) of device shell (1) is located at the internal grating (3) of the wavelength division multiplexer shell (1), the grating
(3) it is located at the side of the self-focusing lens (2), after incident light is irradiated on grating (3), since the dispersion of grating (3) is made
With the visible light signal of different wave length reflects at different angles；The grating (3) includes grating substrate portion (31) and is located at
The grating portion (32) of grating substrate portion (31) side, the grating portion (32) is process using photoetching technique, described
The surface in grating substrate portion (31) is coated with anti-reflecting layer (33).
2. a kind of visible light wave division multiplexer according to claim 1, it is characterised in that: in the wavelength division multiplexer shell
(1) be provided on inner wall antistatic layer (11), and the antistatic layer (11) with a thickness of 1-2 millimeters.
3. a kind of visible light wave division multiplexer according to claim 1, it is characterised in that: the anti-reflecting layer (33) uses
Carborundum films material is made, and the anti-reflecting layer (33) with a thickness of 50-100 microns.
4. a kind of visible light wave division multiplexer according to claim 1, it is characterised in that: can also be saturating in the self-focusing
Filter plate (4) are provided between mirror (2) and grating (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821291971.6U CN208444050U (en) | 2018-08-10 | 2018-08-10 | A kind of visible light wave division multiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821291971.6U CN208444050U (en) | 2018-08-10 | 2018-08-10 | A kind of visible light wave division multiplexer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208444050U true CN208444050U (en) | 2019-01-29 |
Family
ID=65086565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821291971.6U Expired - Fee Related CN208444050U (en) | 2018-08-10 | 2018-08-10 | A kind of visible light wave division multiplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208444050U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089481A (en) * | 2021-11-25 | 2022-02-25 | 深圳市欧亿光电技术有限公司 | Novel wavelength division multiplexer adopting optical waveguide integration technology |
-
2018
- 2018-08-10 CN CN201821291971.6U patent/CN208444050U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114089481A (en) * | 2021-11-25 | 2022-02-25 | 深圳市欧亿光电技术有限公司 | Novel wavelength division multiplexer adopting optical waveguide integration technology |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105717589B (en) | A kind of monochromatic light mouth multidiameter delay light emission component | |
| CN105842883A (en) | Photoisolator | |
| CN206818914U (en) | Reflection-type wavelength division multiplexer based on film filtering slice | |
| US6205270B1 (en) | Dense wavelength division multiplexer which includes a dense optical channel comb filter | |
| CN205427236U (en) | Plane single scale intergration wavelength devision multiplex - demultiplexer | |
| CN111929771A (en) | WDM wavelength division multiplexing module | |
| CN208444050U (en) | A kind of visible light wave division multiplexer | |
| Watanabe et al. | Optical multi/demultiplexers for single-mode fiber transmission | |
| CN100414333C (en) | A single fiber three-way wave separator/wave combination device | |
| CN104459884A (en) | Method for manufacturing wavelength division multiplexing and demultiplexing device | |
| CN112596254B (en) | Compact polarization beam splitter based on photonic crystal | |
| CN110941048B (en) | High extinction ratio coarse wavelength division multiplexer/demultiplexer based on multi-mode interference principle | |
| JPH10282350A (en) | Optical splitter | |
| CN106054313A (en) | Black phosphor based online optical fiber polarizer and its preparation method | |
| CN102207586A (en) | Four-port optical directional router | |
| CN101852891B (en) | Single-fiber three-way multiplexer chip for fiber to the home | |
| CN206057724U (en) | Optoisolator | |
| CN206057725U (en) | Optoisolator | |
| CN104422989B (en) | Optical assembly, Optical isolator module and light emission system | |
| CN201732180U (en) | Fiber-to-the-home single-fiber three-way multiplexer chip | |
| CN208283598U (en) | A kind of grating type wavelength division multiplexer | |
| CN210954426U (en) | Optical device with narrow pass band | |
| CN203133316U (en) | High isolation wavelength division multiplexing device | |
| CN208314253U (en) | A kind of Waveguide array type wavelength division multiplexer | |
| CN210954405U (en) | Optoelectronic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190129 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |