CN207528954U - Reinforced filter plate - Google Patents
Reinforced filter plate Download PDFInfo
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- CN207528954U CN207528954U CN201720964437.6U CN201720964437U CN207528954U CN 207528954 U CN207528954 U CN 207528954U CN 201720964437 U CN201720964437 U CN 201720964437U CN 207528954 U CN207528954 U CN 207528954U
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Abstract
The utility model discloses a kind of reinforced filter plates, including high-reflecting film, glass substrate, anti-reflective film, anti-reflection film, wavelength filter membrane and anti-reflection film, the high-reflecting film, glass substrate, anti-reflective film, anti-reflection film, wavelength filter membrane and anti-reflection film are sequentially overlapped and fit together, the thickness of the anti-reflective film is 966.14nm, and material is niobium pentaoxide；The thickness of the wavelength filter membrane is 2166.14nm, and material is silica.Form due to the above structure, improved reinforced filter plate have the characteristics that：1. solving the problems, such as that Insertion Loss is big, it can accomplish 0.05DB from 0.7DB currently on the market；2. solving the problems, such as narrow bandwidth, present 1550+/10nm is accomplished 1550+/30nm；3. solve transmission isolation, reflection isolation degree problem.Accomplish that 45DB, reflection isolation degree 12DB accomplish 20DB from transmission isolation 25DB.
Description
Technical field
The utility model is related to a kind of optical filter, specifically a kind of reinforced filter plate.
Background technology
Reinforced filter plate, that is, RFOG full name are that RF over Glass are used to define a kind of network architecture of PON, Ke Yi
Voice, video and the data based on DOCSIS are transmitted on optical fiber.RFOG standards can continue to retain existing headend equipment, number
Set-top box, wire line MODEM and Emerging multimedia terminal adapter（E-MTA）Products are waited, user only needs installation one
Photoelectric converter can watch high definition and other programs.RFOG can both allow operator to be built in newly-built community and commercial and residential building
FTTP networks, or original HFC user provides upgrade service.Common radio frequency transmission device is wave filter（Filter）It is logical
It crosses useful frequency signal and inhibits the filter plate of unwanted frequency signal, the device being assembled into or module.My company is based on research and development
The filter plate（Filter）To apply optical fiber radio frequency Transmission system.
The prior art has the following disadvantages：1. Insertion Loss：The abbreviation of insertion loss represents to access a certain passive device in circuit
Caused loss after part or component（Decay）, unit is decibel（DB）, can accomplish to be -0.7DB at present；2. bandwidth：Weighing apparatus
It measures wave filter selection useful signal and inhibits the ability of garbage signal.Bandwidth can accomplish 1550+/- 10nm at present；3. isolation：
Non-coupled port and the power ratio of input port.Transmission isolation can accomplish -25DB at present, and reflection isolation degree accomplishes -12DB；4.
Size：The filter plate used is larger（1.4mm*1.4mm*1.0mm）Cause device size big, it has not been convenient to installation carry, cost compared with
It is high.
Utility model content
The purpose of the utility model is to overcome deficiency of the prior art, provide that a kind of Insertion Loss is small, reinforcement of broader bandwidth
Type filter plate.
To achieve the above object, technical solution is used by the utility model：
Reinforced filter plate, including high-reflecting film, glass substrate, anti-reflective film, anti-reflection film, wavelength filter membrane and anti-reflection film,
The high-reflecting film, glass substrate, anti-reflective film, anti-reflection film, wavelength filter membrane and anti-reflection film are sequentially overlapped and fit together, described
The thickness of anti-reflective film is 966.14nm, and material is niobium pentaoxide；The thickness of the wavelength filter membrane be 2166.14nm, material
Expect for silica.
Further, the high-reflecting film is by 71 tantalum pentoxide reflecting medium layers and 71 silica reflecting mediums
Layer alternately 142 layers of structure being formed by stacking, the 1st layer to the 141st layer of odd-level are tantalum pentoxide reflecting medium layer, odd-level
Every layer thickness be all 180.68nm；2nd layer to the 142nd layer of even level is silica reflecting medium layer, wherein, the 2nd layer
Thickness be 794.81nm, the 4th layer of thickness is 529.88nm, and the 12nd layer of thickness is 2119.50nm, and the 22nd layer of thickness is
529.88nm, the 32nd layer of thickness is 794.81nm, and the 34th layer of thickness is 529.88nm, and the 124th layer of thickness is
1059.80nm, the 142nd layer of thickness is 349.16nm, and the thickness of other even levels is all 264.94nm.
Further, the glass substrate uses WMS-15 glass baseplates.
The beneficial effects of the utility model：Form due to the above structure, improved reinforced filter plate have
Following characteristics：1. solving the problems, such as that Insertion Loss is big, it can accomplish -0.05DB from -0.7DB currently on the market；2. solve narrow bandwidth
The problem of, present 1550+/- 10nm is accomplished 1550+/- 30nm；3. solve transmission isolation, reflection isolation degree problem.From
Transmission isolation -25DB accomplishes that -45DB, reflection isolation degree -12DB accomplish -20DB.
Description of the drawings
The utility model is described in further detail with reference to the accompanying drawings and detailed description：
Fig. 1 is the structure diagram of the utility model.
In figure：1st, high-reflecting film；2nd, glass substrate；3rd, anti-reflective film；4th, anti-reflection film；5th, wavelength filter membrane；6th, anti-reflection film.
Specific embodiment
As shown in Figure 1, reinforced filter plate, including high-reflecting film 1, glass substrate 2, anti-reflective film 3, anti-reflection film 4, wavelength mistake
Filter membrane 5 and anti-reflection film 6, the high-reflecting film 1, glass substrate 2, anti-reflective film 3, anti-reflection film 4, wavelength filter membrane 5 and anti-reflection film 6 according to
Secondary superposition fits together, and the thickness of the anti-reflective film 3 is 966.14nm, and material is niobium pentaoxide；The wavelength filtering
The thickness of film 5 is 2166.14nm, and material is silica.
Further, the high-reflecting film 1 is situated between by 71 tantalum pentoxide reflecting medium layers and 71 silica reflections
Matter layer alternately 142 layers of structure being formed by stacking, the 1st layer to the 141st layer of odd-level are tantalum pentoxide reflecting medium layer, odd number
Every layer thickness of layer is all 180.68nm；2nd layer to the 142nd layer of even level is silica reflecting medium layer, wherein, the 2nd
The thickness of layer is 794.81nm, and the 4th layer of thickness is 529.88nm, and the 12nd layer of thickness is 2119.50nm, the 22nd layer of thickness
It is 529.88nm, the 32nd layer of thickness is 794.81nm, and the 34th layer of thickness is 529.88nm, and the 124th layer of thickness is
1059.80nm, the 142nd layer of thickness is 349.16nm, and the thickness of other even levels is all 264.94nm.
Form due to the above structure, improved reinforced filter plate have the characteristics that：1. it is big to solve Insertion Loss
The problem of, it can accomplish -0.05DB from -0.7DB currently on the market；2. solve the problems, such as narrow bandwidth, present 1550+/-
10nm accomplishes 1550+/- 30nm；3. solve transmission isolation, reflection isolation degree problem.From transmission isolation -25DB accomplish -
45DB, reflection isolation degree -12DB accomplish -20DB.
The above is the preferred embodiment of the utility model, certainly cannot with this come limit the utility model it
Interest field, it is noted that for those skilled in the art, carried out to the technical solution of the utility model
Modification or equivalent replacement, without departure from the protection domain of technical solutions of the utility model.
Claims (3)
1. a kind of reinforced filter plate, it is characterised in that：Including high-reflecting film, glass substrate, anti-reflective film, anti-reflection film, wavelength mistake
Filter membrane and anti-reflection film, the high-reflecting film, glass substrate, anti-reflective film, anti-reflection film, wavelength filter membrane and anti-reflection film are sequentially overlapped patch
It is combined, the thickness of the anti-reflective film is 966.14nm, and material is niobium pentaoxide；The thickness of the wavelength filter membrane is
2166.14nm material is silica.
2. reinforced filter plate according to claim 1, it is characterised in that：The high-reflecting film is by 71 tantalum pentoxides
142 layers of structure that reflecting medium layer and 71 silica reflecting medium layers are alternately formed by stacking, the 1st layer to the 141st layer strange
Several layers are tantalum pentoxide reflecting medium layer, and every layer thickness of odd-level is all 180.68nm；2nd layer to the 142nd layer of even number
Layer for silica reflecting medium layer, wherein, the 2nd layer of thickness is 794.81nm, and the 4th layer of thickness is 529.88nm, the 12nd
The thickness of layer is 2119.50nm, and the 22nd layer of thickness is 529.88nm, and the 32nd layer of thickness is 794.81nm, the 34th layer of thickness
Degree is 529.88nm, and the 124th layer of thickness is 1059.80nm, and the 142nd layer of thickness is 349.16nm, the thickness of other even levels
Degree is all 264.94nm.
3. reinforced filter plate according to claim 1, it is characterised in that：The glass substrate uses WMS-15 glass bases
Material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720964437.6U CN207528954U (en) | 2017-08-03 | 2017-08-03 | Reinforced filter plate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720964437.6U CN207528954U (en) | 2017-08-03 | 2017-08-03 | Reinforced filter plate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207528954U true CN207528954U (en) | 2018-06-22 |
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ID=62574802
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720964437.6U Active CN207528954U (en) | 2017-08-03 | 2017-08-03 | Reinforced filter plate |
Country Status (1)
| Country | Link |
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| CN (1) | CN207528954U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488435A (en) * | 2019-08-27 | 2019-11-22 | 奥普镀膜技术（广州）有限公司 | A kind of active optics component based on diverging optical path application |
-
2017
- 2017-08-03 CN CN201720964437.6U patent/CN207528954U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488435A (en) * | 2019-08-27 | 2019-11-22 | 奥普镀膜技术（广州）有限公司 | A kind of active optics component based on diverging optical path application |
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