CN110412688A - A kind of WDM modular structure - Google Patents
A kind of WDM modular structure Download PDFInfo
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- CN110412688A CN110412688A CN201810403430.6A CN201810403430A CN110412688A CN 110412688 A CN110412688 A CN 110412688A CN 201810403430 A CN201810403430 A CN 201810403430A CN 110412688 A CN110412688 A CN 110412688A
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- plain
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- wdm
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
- G02B6/24—Coupling light guides
- G02B6/26—Optical coupling means
- G02B6/28—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals
- G02B6/293—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means
- G02B6/29379—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device
- G02B6/2938—Optical coupling means having data bus means, i.e. plural waveguides interconnected and providing an inherently bidirectional system by mixing and splitting signals with wavelength selective means characterised by the function or use of the complete device for multiplexing or demultiplexing, i.e. combining or separating wavelengths, e.g. 1xN, NxM
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Filters (AREA)
Abstract
The invention discloses a kind of WDM modular structures, it includes multiple plain films, multiple plain films are linked in sequence from the bottom to top forms an optical module, the optical module has relatively parallel two sides, anti-reflection film and highly reflecting films are wherein sequentially equipped on one side, multiple filter coatings are sequentially equipped on another side, each filter coating is used to transmit the light of different wave length, complex light containing multi-wavelength channel enters inside optical module from anti-reflection film, during multiplexed optical is turned back between each filter coating and highly reflecting films, the light of each wavelength channel is sequentially transmitted from corresponding filter coating in multiplexed optical.The present invention forms WDM module by the way of multi-disc plain film bonding, has at low cost, and entire processing technology step is few, easy to operate, and effectively guarantees quality, can be applied to the advantages that producing in enormous quantities.
Description
Technical field
The present invention relates to communication optics field more particularly to a kind of WDM modular structures.
Background technique
WDM optical module can be divided into Demux module and OMux module, and Demux is the meaning of partial wave, so the module
Function will be separated from the optical signal of the different wave length of module common end (end COM) incidence by different devices；OMux is multiplex
The meaning, so the function of the module be exactly by different devices by the optical signal of different wave length synthesize all the way from the end COM export,
In order to transmit.Conventional WDM Demux module and OMux module are all to use one using structure as shown in Figure 1 now
Block transfer glass 01 plates highly reflecting films 02 and anti-reflection film 03 on one side, then passes through glue with the filter coating 04 for being coated with different wave length
Water is bonded together, such optical texture it is difficult to ensure that optical filtering film surface and reflecting surface the depth of parallelism, it is also difficult to control glue-line thickness
Degree, while being difficult to control the gap control between the spacing equivalence and each optical filtering diaphragm between emergent light, and in this way
Cost of manufacture it is very high, be not suitable for producing in enormous quantities.
Summary of the invention
In order to solve deficiency in the prior art, the purpose of the present invention is to provide a kind of batch metaplasias at low cost, suitable
Produce WDM modular structure.
To achieve the above object, the invention adopts the following technical scheme:
A kind of WDM modular structure comprising multiple plain films, multiple plain films are linked in sequence from the bottom to top forms an optical module, should
Optical module has relatively parallel two sides, anti-reflection film and highly reflecting films is wherein sequentially equipped on one side, on another side
Sequentially it is equipped with multiple filter coatings, each filter coating is used to transmit the light of different wave length, and the complex light containing multi-wavelength channel is from increasing
Permeable membrane enters inside optical module, during multiplexed optical is turned back between each filter coating and highly reflecting films, each wave in multiplexed optical
The light of long-channel is sequentially transmitted from corresponding filter coating.
The multiple plain film includes first plain film and more than two second plain films, first plain film and second flat
Piece all has relatively parallel two sides, and the anti-reflection film is plated on the one side of the first plain film, and the highly reflecting films continuously plate
It is located on the one side of each second plain film, each filter coating is plated on respectively on the another side of different second plain films, and each filter coating
Film surface in the same plane.
The multiple plain film is integral by bonding connection.
The adhesive method be using glued, optical cement (optical path is without glue, the mode of surrounding sealing) or in-depth optical cement (optical path without
Glue) optical fabrication process.
When the adhesive method is using gluing, the refractive index of used glue and plain film matches.
The two sides and bottom surface of the plain film or the angle theta of top surface are 45-90 °.
For the multiplexed optical with incident angle α from anti-reflection film surface incident light module, α is 5-15 °.
WDM modular structure of the invention can be applied to the interval CWDM(20nm), the interval DWDM(0.8nm/0.4nm) or
The interval LAN-WDM(4nm) etc. communication fields.
The present invention forms WDM module by the way of multi-disc plain film bonding, has at low cost, entire processing technology step
It is few, it is easy to operate, and effectively guarantee quality, it can be applied to the advantages that producing in enormous quantities.
Detailed description of the invention
The present invention is described in further details below in conjunction with the drawings and specific embodiments:
Fig. 1 is the conventional WDM modular structure for being typical 4 wavelength channel of the prior art；
Fig. 2 is the schematic diagram of WDM modular structure of the present invention；
Fig. 3 is optical base-substrate polishing both surfaces, wherein the schematic diagram of the filter coating of one side plating different wave length；
Fig. 4 is that the optical base-substrate for plating filter coating is cut to the schematic diagram to form the second plain film；
Fig. 5 is the schematic diagram for being bonded together multiple second plain films；
Fig. 6 is the schematic diagram that highly reflecting films are plated to the another side of the second plain film；
Fig. 7 is the schematic diagram that will be coated with the first plain film of anti-reflection film and bond together with multiple Nian Jie the second integral plain films.
Specific embodiment
As shown in Fig. 2, a kind of WDM modular structure of the present invention comprising (its bottom surface is to be parallel to each other with top surface to multiple plain films
Plane), multiple plain films be linked in sequence from the bottom to top formed an optical module, the optical module have relatively parallel two sides
Face is wherein sequentially equipped with anti-reflection film 3 and highly reflecting films 4 on one side, multiple filter coatings 5 are sequentially equipped on another side, each to filter
Light film 5 is used to transmit the light of different wave length, and the complex light containing multi-wavelength channel enters inside optical module from anti-reflection film 3,
During multiplexed optical is turned back between each filter coating 5 and highly reflecting films 4, the light of each wavelength channel is sequentially from correspondence in multiplexed optical
Filter coating 5 transmit.
Multiple plain films include first plain film 1 and more than two second plain films 2, and the first plain film 1 and the second plain film 2 are
With relatively parallel two sides, anti-reflection film 3 is plated on the one side of the first plain film 1, and continuously plating is located at each second to highly reflecting films 4
On the one side of plain film 2, each filter coating 5 is plated on respectively on the another side of different second plain films 2, and the film surface of each filter coating 5
In the same plane.
Multiple plain films are integral by bonding connection.Adhesive method can (optical path be sealed without glue, surrounding using glued, optical cement
The mode of glue) or in-depth optical cement (optical path is without glue) etc. optical fabrication process.When above-mentioned adhesive method is using gluing, used glue
The refractive index of water and plain film must match.
According to the requirement of product, the two sides and bottom surface of plain film or the angle theta of top surface are 45-90 °.
Multiplexed optical injects optical module from 3 face of anti-reflection film with incident angle α, and α is 5-15 °.
WDM modular structure of the invention can be applied to the interval CWDM(20nm), the interval DWDM(0.8nm/0.4nm) or
The interval LAN-WDM(4nm) etc. communication fields.
Production method of the invention:
1, as shown in figure 3, a piece of depth of parallelism large stretch of optical base-substrate 6 well is first processed into, then in the side of this optical base-substrate 6
The filter coating 5 of different wave length is plated on face, as shown in figure 4, this large stretch of cutting of optical base-substrate 6 is then formed multiple second plain films
2, then the upper and lower surfaces of each second plain film 2 are polished, control its thickness T, according to product requirement, the essence of this thickness T
Degree can control within 0.001mm；As shown in figure 5, the second plain film 2 with different wave length filter coating 5 after will be polished
By technologies bondings such as the glue bonding or optical cement of index matching or in-depth optical cements, and guarantee each filter coating 5
Film surface in the same plane.
2, the another side of each second plain film 2 to bond together is synchronized and is ground and polished, it is ensured that thrown face with
The depth of parallelism and width dimensions W of 5 film surface of filter coating, the depth of parallelism will affect the depth of parallelism of outgoing outgoing beam, and width dimensions W is then
Influence the spacing etc. of outgoing beam.As shown in fig. 6, plating highly reflecting films 4 on polished another side, it is ensured that light beam
Transmission and reflection in WDM optical module etc..
3, such as Fig. 7 passes through the first plain film 1 for having plated high antireflection film 3 with above-mentioned multiple Nian Jie the second integral plain films 2
The glue of index matching bonds or the technologies bonding such as optical cement or in-depth optical cement, and guarantees high antireflection film 3 and height
4 face of reflectance coating in the same plane, otherwise will affect the stroke of light beam.So far a complete WDM optical module structure is with regard to shape
Cheng Liao.
It is kind of a manufacturing method above, the processing that plain film bonding is first carried out to filter coating 5 again can also be used certainly, plating is high later
Reflectance coating 4 and anti-reflection film 3, to form the WDM module of multiple reflections transmission.
Multiplexed optical is incident on 3 face of anti-reflection film when use with certain incident angle α and certain spot size, then
The test of performance indicator is carried out to this optical module, the result measured is identical with Theoretical Design, realizes typical 4 waves of CWDM
The curve of output of long-channel.
By the implementation of above-mentioned case, the present invention is described in detail, but those skilled in the art should be understood that not
It is detached from the spirit and scope of the present invention defined by the appended claims, the present invention is made in the form and details
Various change is the range that the present invention is protected.
Claims (8)
1. a kind of WDM modular structure, it is characterised in that: it includes multiple plain films, and multiple plain films are linked in sequence to be formed from the bottom to top
One optical module, the optical module have relatively parallel two sides, and anti-reflection film and high reflection are wherein sequentially equipped on one side
Film, multiple filter coatings are sequentially equipped on another side, and each filter coating is used to transmit the light of different wave length, contains multi-wavelength channel
Complex light enter inside optical module from anti-reflection film, during multiplexed optical is turned back between each filter coating and highly reflecting films,
The light of each wavelength channel is sequentially transmitted from corresponding filter coating in multiplexed optical.
2. a kind of WDM modular structure according to claim 1, it is characterised in that: the multiple plain film includes one first
Plain film and more than two second plain films, first plain film and the second plain film all have relatively parallel two sides, the increasing
Permeable membrane is plated on the one side of the first plain film, and the highly reflecting films, which continuously plate, to be located on the one side of each second plain film, each to filter
Film is plated on respectively on the another side of different second plain films, and the film surface of each filter coating is in the same plane.
3. a kind of WDM modular structure according to claim 1, it is characterised in that: the multiple plain film passes through bonding connection
Integrally.
4. a kind of WDM modular structure according to claim 3, it is characterised in that: the adhesive method is using glued, light
Glue or the optical fabrication process for deepening optical cement.
5. a kind of WDM modular structure according to claim 4, it is characterised in that: when the adhesive method is using gluing, institute
The glue of use and the refractive index of plain film match.
6. a kind of WDM modular structure according to claim 1, it is characterised in that: the two sides of the plain film and bottom surface or
The angle theta of top surface is 45-90 °.
7. a kind of WDM modular structure according to claim 1, it is characterised in that: the multiplexed optical is with incident angle α from increasing
Optical module is injected in permeable membrane face, and α is 5-15 °.
8. a kind of WDM modular structure described in one of -7 according to claim 1, it is characterised in that: its be applied to CWDM, DWDM or
LAN-WDM communication field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403430.6A CN110412688A (en) | 2018-04-28 | 2018-04-28 | A kind of WDM modular structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810403430.6A CN110412688A (en) | 2018-04-28 | 2018-04-28 | A kind of WDM modular structure |
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| Publication Number | Publication Date |
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| CN110412688A true CN110412688A (en) | 2019-11-05 |
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| CN201810403430.6A Withdrawn CN110412688A (en) | 2018-04-28 | 2018-04-28 | A kind of WDM modular structure |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213824A (en) * | 2020-10-29 | 2021-01-12 | 苏州伽蓝致远电子科技股份有限公司 | Wavelength division assembly and preparation method thereof |
| CN112213823A (en) * | 2020-10-29 | 2021-01-12 | 苏州伽蓝致远电子科技股份有限公司 | Optical integrated assembly |
| CN112882145A (en) * | 2021-02-22 | 2021-06-01 | 长春长光辰英生物科学仪器有限公司 | Reflective light filtering module and light filtering method thereof |
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| CN205333911U (en) * | 2015-12-04 | 2016-06-22 | 北极光电(深圳)有限公司 | Wavelength devision multiplex subassembly structure is learned to shimmer |
| CN206020721U (en) * | 2016-08-02 | 2017-03-15 | 福建中策光电股份公司 | A kind of air-gap type dense wave division multipurpose module |
| CN206057636U (en) * | 2016-09-14 | 2017-03-29 | 北极光电(深圳)有限公司 | A kind of integrated micro-optical wavelength-division of eight passage and multiplexing assembly |
| CN107065076A (en) * | 2017-06-28 | 2017-08-18 | 北极光电(深圳)有限公司 | A kind of OWDM integrated device of microstructure and preparation method thereof |
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| US20110182586A1 (en) * | 2008-01-03 | 2011-07-28 | Guijun Ji | Wavelength division multiplexing |
| CN103091757A (en) * | 2011-10-27 | 2013-05-08 | 福州高意光学有限公司 | Air gap etalon and manufacture method thereof |
| CN203849457U (en) * | 2014-05-28 | 2014-09-24 | 奥普镀膜技术（广州）有限公司 | Small-spacing optical odemux |
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| CN206020721U (en) * | 2016-08-02 | 2017-03-15 | 福建中策光电股份公司 | A kind of air-gap type dense wave division multipurpose module |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112213824A (en) * | 2020-10-29 | 2021-01-12 | 苏州伽蓝致远电子科技股份有限公司 | Wavelength division assembly and preparation method thereof |
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| CN112882145A (en) * | 2021-02-22 | 2021-06-01 | 长春长光辰英生物科学仪器有限公司 | Reflective light filtering module and light filtering method thereof |
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Application publication date: 20191105 |