CN113985509A - High-precision Z block optical filter gluing process technology - Google Patents
High-precision Z block optical filter gluing process technology Download PDFInfo
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- CN113985509A CN113985509A CN202111208126.4A CN202111208126A CN113985509A CN 113985509 A CN113985509 A CN 113985509A CN 202111208126 A CN202111208126 A CN 202111208126A CN 113985509 A CN113985509 A CN 113985509A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
- G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
- G02B1/11—Anti-reflection coatings
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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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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention provides a high-precision Z-block optical filter which is used for refracting optical signals transmitted by an optical fiber and comprises a first surface and a second surface, wherein the first surface and the second surface are oppositely arranged; the first surface is provided with an antireflection film, and the antireflection film is used for increasing the light signal transmittance and interference fringes of observation light. The anti-reflection film is arranged on the Z-block filter, the anti-reflection film enhances the transmission of optical signals, meanwhile, the anti-reflection film can perform film interference on the emitted light, interference fringes, namely Newton's rings, can be judged to be perpendicular to the transmission direction of the optical signals when the interference fringes are parallel, and the position of the filter can be adjusted when the interference fringes are not parallel, so that the light is parallel, meanwhile, the light parallelism can be measured more conveniently, and the convenience is improved. A wavelength division multiplexer for separately transmitting optical signals of different wavelengths, comprising a high-precision Z-block filter as described above.
Description
Technical Field
The invention relates to the field of optical fiber transmission devices, in particular to a high-precision Z-block optical filter and a wavelength division multiplexer.
Background
With the increasing living standard of the material, the demand of people for information consumption is continuously increasing. In order to provide services with high information capacity, communication carriers put increasing demands on the transmission capacity of optical fiber communication systems.
For the existing wavelength division multiplexer, an optical film layer on a filter of a Z-block is easy to bulge, so that parallel transmission of light is influenced, and transmission of an optical signal is influenced.
Disclosure of Invention
The invention provides a high-precision Z-block optical filter and a wavelength division multiplexer, aiming at solving the technical problems that an optical film layer on a Z-block optical filter is easy to bulge, the parallel transmission of light is influenced, and the transmission of optical signals is influenced in the existing wavelength division multiplexer.
The invention provides a high-precision Z-block optical filter which is used for refracting optical signals transmitted by an optical fiber and comprises a first surface and a second surface, wherein the first surface and the second surface are oppositely arranged; the first surface is provided with an antireflection film, and the antireflection film is used for increasing the light signal transmittance and interference fringes of observation light.
Preferably, the antireflection film is an AR film.
Preferably, the antireflection film is plated on the first surface through a coating process.
A wavelength division multiplexer for separately transmitting optical signals of different wavelengths includes a high-precision Z-block filter as described above.
Preferably, the system comprises a Z-block module and a fiber collimator; the Z-block module, the high-precision Z-block optical filter and the optical fiber collimator are sequentially arranged; the high-precision Z-block optical filter is arranged at one end of the Z-block module.
Preferably, the fiber collimator comprises an input fiber collimator and an output fiber collimator.
Preferably, the optical signal emitted by the input optical fiber collimator is classified into the Z-block module, and the Z-block module reflects the classified optical signal to the corresponding type of output optical fiber collimator for output.
Compared with the prior art, the high-precision Z-block optical filter and the wavelength division multiplexer provided by the invention have the following advantages:
1. a high-precision Z-block optical filter is characterized in that an antireflection film is arranged on the Z-block optical filter, the antireflection film enhances the transmission of optical signals, meanwhile, the antireflection film can perform film interference on the emitted light, interference fringes, namely Newton's rings, can be judged to be perpendicular to the transmission direction of the optical signals when the interference fringes are parallel, and the position of the optical filter can be adjusted when the interference fringes are not relatively parallel, so that the light is parallel, and meanwhile, the light parallelism can be measured more conveniently, and the convenience is improved.
2. The anti-reflection film is an AR film, so that the transmittance of light passing through the optical filter can be increased, and the reflectivity is reduced.
3. The antireflection film is coated on the first surface, so that the antireflection film is prevented from being bent under the action of self stress, the phenomenon that the antireflection film cannot reflect light signals as preset due to bending is prevented, and the accuracy of light signal transmission is improved.
4. A wavelength division multiplexer improves the parallelism of optical signal transmission when optical signals of the wavelength division multiplexer are classified through a high-precision block optical filter, and meanwhile, detection of light-emitting parallelism can be avoided, testing cost is saved, and rejection rate is reduced.
5. The optical fiber collimator emits a light signal, the light signal is reflected and refracted in the Z-block module, the light signal is converted into a plurality of light signals and is transmitted out from the corresponding optical fiber collimator, the input optical fiber collimator transmits various light signals in a unified mode, the output optical fiber collimator correspondingly transmits the classified light signals, and interference fringes displayed by the optical filter are observed through the Z-block module to judge whether the interference fringes are relatively parallel or not, so that the parallelism of light is detected, the detection cost is reduced, and the detection efficiency is improved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Drawings
Fig. 1 is a schematic structural diagram of a high-precision Z-block filter according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a wavelength division multiplexer according to a second embodiment of the present invention.
Description of reference numerals:
1. a high-precision Z-block optical filter; 11. a first surface; 12. a second surface; 13. an anti-reflection film;
100. a wavelength division multiplexer; 2. a Z-block module; 3. a fiber collimator; 31. an input fiber collimator; 32. and an output fiber collimator.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
With the increasing living standard of the material, the demand of people for information consumption is continuously increasing. In order to provide services with high information capacity, communication carriers put increasing demands on the transmission capacity of optical fiber communication systems.
The inventors found the following problems in the prior art: for the existing wavelength division multiplexer, an optical film layer on a filter of a Z-block is easy to bulge, so that parallel transmission of light is influenced, and transmission of an optical signal is influenced.
Referring to fig. 1, a first embodiment of the present invention provides a high-precision Z-block filter for refracting an optical signal transmitted by an optical fiber, including a first surface and a second surface, where the first surface and the second surface are disposed opposite to each other; the first surface is provided with an antireflection film, and the antireflection film is used for increasing the light signal transmittance and interference fringes of observation light.
Specifically, the high-precision Z-block optical filter is characterized in that an antireflection film is arranged on the Z-block optical filter, the antireflection film enhances the transmission of optical signals, meanwhile, the antireflection film can perform film interference on the emitted light, interference fringes, namely Newton rings, appear, when the interference fringes are parallel, the film can be judged to be perpendicular to the transmission direction of the optical signals, when the interference fringes are not relatively parallel, the position of the optical filter can be adjusted, so that the light is parallel, meanwhile, the light parallelism can be measured more conveniently, and the convenience is improved.
Particularly, the anti-reflection film is an AR film, so that the transmittance of light passing through the filter can be increased, and the reflectivity is reduced.
The antireflection film is plated on the first surface through a film plating process.
Specifically, the antireflection film is plated on the first surface, so that the antireflection film is prevented from being bent under the action of self stress, the phenomenon that the antireflection film cannot reflect light signals as preset due to bending is avoided, and the accuracy of light signal transmission is improved.
The first embodiment of the invention also provides a wavelength division multiplexer, which is used for separately transmitting optical signals with different wavelengths, and comprises the high-precision Z-block optical filter, the Z-block module and the optical fiber collimator which are provided by the first embodiment; the Z-block module, the high-precision Z-block optical filter and the optical fiber collimator are sequentially arranged; the high-precision Z-block optical filter is arranged at one end of the Z-block module.
Specifically, the wavelength division multiplexer improves the parallelism of optical signal transmission when optical signals of the wavelength division multiplexer are classified through a high-precision Z-block optical filter, and meanwhile, detection of light emitting parallelism can be avoided, test cost is saved, and rejection rate is reduced.
The optical fiber collimator comprises an input optical fiber collimator and an output optical fiber collimator. And the Z-block module reflects the classified optical signals to the corresponding type of output optical fiber collimator for output.
Specifically, the optical fiber collimator emits a light signal, the light signal is reflected and refracted in the Z-block module, the light signal is converted into a plurality of light signals and is transmitted out from the corresponding optical fiber collimator, the input optical fiber collimator transmits various light signals in a unified mode, the output optical fiber collimator correspondingly transmits the classified light signals, and interference fringes displayed by the optical filter are observed through the Z-block module to judge whether the interference fringes are relatively parallel or not, so that the parallelism of light is detected, the detection cost is reduced, and the detection efficiency is improved.
The working principle is as follows:
the technical problem is as follows: for the existing wavelength division multiplexer, an optical film layer on a filter of a Z-block is easy to bulge, so that parallel transmission of light is influenced, and transmission of an optical signal is influenced.
The wavelength division multiplexer is used for increasing the transmittance of the Z-block module on one hand and completely transmitting an optical signal to the output optical fiber collimator by plating an antireflection film on the optical filter of the Z-block module. The antireflection film is coated on the filter by a film coating technology, so that the antireflection film can be prevented from being bent under the action of self stress, the detection of the light-emitting parallelism of the Z-block module can be omitted, and the test cost is reduced.
The input optical fiber collimator transmits a beam of mixed optical signal to the wavelength division multiplexer, the beam of mixed optical signal is decomposed into optical signals with different wavelengths, and the optical signals with different wavelengths are respectively transmitted out from the output optical fiber collimator. Therefore, the optical signals which are combined and transmitted are decomposed and transmitted, and are transmitted to corresponding positions respectively, and the transmission accuracy is improved.
On the wavelength division multiplexer, the Z-block module can decompose the optical signal of combining the conveying, and it carries out categorised conveying through the wavelength difference of optical signal, and simultaneously, the multiplicable optical signal transmissivity of Z-block light filter improves the transmission performance of optical signal, and wavelength division multiplexer pastes the AR membrane on the Z-block light filter, and the interference fringe of the optical signal of conveying is shown to the AR membrane shell, and whether parallel through judging the interference fringe, can judge whether parallel of light, improves the convenience of measuring the light parallelism.
The anti-reflection film adopts an AR film, so that the light transmittance of the optical signal can be increased, the reflectivity of the optical signal can be reduced, and the optical signal can be better transmitted into the output optical fiber collimator.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit of the present invention are intended to be included within the scope of the present invention.
Claims (7)
1. A high-precision Z-block optical filter is used for refracting optical signals transmitted by optical fibers, and is characterized in that:
the device comprises a first surface and a second surface, wherein the first surface and the second surface are oppositely arranged;
the first surface is provided with an antireflection film, and the antireflection film is used for increasing the light signal transmittance and interference fringes of observation light.
2. The high-precision Z-block filter of claim 1, wherein: the antireflection film is an AR film.
3. The high-precision Z-block filter of claim 1, wherein: the antireflection film is plated on the first surface through a film plating process.
4. A wavelength division multiplexer for splitting optical signals of different wavelengths, comprising a high precision Z-block filter according to any of claims 1 to 3.
5. A wavelength division multiplexer as claimed in claim 4, wherein: the system further comprises a Z-block module and an optical fiber collimator;
the Z-block module, the high-precision Z-block optical filter and the optical fiber collimator are sequentially arranged;
the high-precision Z-block optical filter is arranged at one end of the Z-block module.
6. A wavelength division multiplexer as claimed in claim 5, wherein: the optical fiber collimator comprises an input optical fiber collimator and an output optical fiber collimator.
7. A wavelength division multiplexer as claimed in claim 6, wherein: and the Z-block module reflects the classified optical signals to the corresponding type of output optical fiber collimator for output.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111208126.4A CN113985509A (en) | 2021-10-18 | 2021-10-18 | High-precision Z block optical filter gluing process technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111208126.4A CN113985509A (en) | 2021-10-18 | 2021-10-18 | High-precision Z block optical filter gluing process technology |
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| CN113985509A true CN113985509A (en) | 2022-01-28 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017529552A (en) * | 2015-06-11 | 2017-10-05 | ジーピー インコーポレーテッド．Ｇｐ Ｉｎｃ． | Wavelength multiplexed optical receiver module |
| CN207882498U (en) * | 2018-02-05 | 2018-09-18 | 深圳市飞宇光纤系统有限公司 | A kind of compact wavelength division multiplexer |
| CN208421303U (en) * | 2017-09-27 | 2019-01-22 | 上海中科创欣通讯设备有限公司 | Two-way integrates wavelength division multiplex device |
| CN111751931A (en) * | 2019-03-29 | 2020-10-09 | 福州高意通讯有限公司 | Small wavelength division multiplexer |
| CN212515131U (en) * | 2020-07-24 | 2021-02-09 | 奥普镀膜技术（广州）有限公司 | Miniature single-side light-emitting wavelength division multiplexing/demultiplexing device and optical module |
-
2021
- 2021-10-18 CN CN202111208126.4A patent/CN113985509A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017529552A (en) * | 2015-06-11 | 2017-10-05 | ジーピー インコーポレーテッド．Ｇｐ Ｉｎｃ． | Wavelength multiplexed optical receiver module |
| CN208421303U (en) * | 2017-09-27 | 2019-01-22 | 上海中科创欣通讯设备有限公司 | Two-way integrates wavelength division multiplex device |
| CN207882498U (en) * | 2018-02-05 | 2018-09-18 | 深圳市飞宇光纤系统有限公司 | A kind of compact wavelength division multiplexer |
| CN111751931A (en) * | 2019-03-29 | 2020-10-09 | 福州高意通讯有限公司 | Small wavelength division multiplexer |
| CN212515131U (en) * | 2020-07-24 | 2021-02-09 | 奥普镀膜技术（广州）有限公司 | Miniature single-side light-emitting wavelength division multiplexing/demultiplexing device and optical module |
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