CN105739025A - Three-dimensional compact multichannel light wavelength division multiplexer with one light emergent end - Google Patents
Three-dimensional compact multichannel light wavelength division multiplexer with one light emergent end Download PDFInfo
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- CN105739025A CN105739025A CN201610155126.5A CN201610155126A CN105739025A CN 105739025 A CN105739025 A CN 105739025A CN 201610155126 A CN201610155126 A CN 201610155126A CN 105739025 A CN105739025 A CN 105739025A
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- light
- filter plate
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- wavelength division
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Classifications
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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
-
- 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
- G02B6/29389—Bandpass filtering, e.g. 1x1 device rejecting or passing certain wavelengths
-
- 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
- G02B6/29391—Power equalisation of different channels, e.g. power flattening
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a three-dimensional compact multichannel light wavelength division multiplexer with one light emergent end. The three-dimensional compact multichannel light wavelength division multiplexer comprises a common wavelength channel optical fiber collimator, N single wavelength channel optical fiber collimators, and N filter plates which are arranged to be corresponding to the single wavelength channel optical fiber collimators in a one-to-one way. Each filter plate is corresponding to one wave band of a transmission light signal. The three-dimensional compact multichannel light wavelength division multiplexer also comprises an optical parallel plate and guide prisms. The filter plates are distributed on the same plane of the optical parallel plate in two columns. The plane, which is parallel to the plane, of the optical parallel plate is also provided with an HR high reflection film which is used for light wave reflection and an Edge filter plate which is used for light wave segmentation. The guide prisms are arranged to be corresponding to the Edge filter plate. The three-dimensional compact multichannel light wavelength division multiplexer is compact in structure and low in loss and can realize the function of one light emergent end of the light wavelength division multiplexer.
Description
Technical field
The present invention relates to a kind of light wavelength division multiplexing, particularly to a kind of one three-dimensional Compact multi-channel light wavelength division multiplexing bringing out light, belong to technical field of optical fiber communication.
Background technology
Disclosed on May 4th, 2011 Chinese patent database, patent name is the patent of invention of " a kind of low-loss multichannel wavelength division multiplexer ", and its patent No. is: 2011201957031.The patent application disclosing a kind of light wavelength division multiplexing, including public passage collimator, first passage diaphragm, first passage collimator, second channel diaphragm and second channel collimator, each passage diaphragm and each channel collimator are each attached on substrate.Multichannel light signal is launched by public passage collimator, first passage optical signal enters first passage collimator through first passage diaphragm, rest channels optical signal is reflexed to second channel diaphragm by first passage diaphragm, second channel optical signal enters second channel collimator through second channel diaphragm, rest channels optical signal reflexes to next passage by second channel diaphragm, the rest may be inferred, completes multichannel light wavelength-division multiplex function.It is disadvantageous in that: 1, in manufacturing process, needs repeatedly to debug, be pasted on one by one on substrate, cause that light wave multiplexer is loosely organized, production efficiency is low behind location during each passage diaphragm location；2, utilize passage diaphragm to carry out optical signal reflection, be only applicable to two and bring out light, it is impossible to meet one and bring out light demand；3, multichannel light signal demand carries out multiple reflections partial wave, owing to there is the collimator of multiple passage, if each channel collimator considers conformity of production, then can adopt the optical fiber of same specification and the lens of same specification, each channel collimator is just inconsistent with the coupling distance of public port collimator, multiple reflections process exists optical signal loss big, also result in each channel collimator simultaneously and produce different coupling efficiencies.
Summary of the invention
It is an object of the invention to overcome deficiency of the prior art, it is provided that a kind of one brings out the three-dimensional Compact multi-channel light wavelength division multiplexing of light, solves the technical problem that in prior art, light wavelength division multiplexing structure is not compact, coupling loss is big.
For solving above-mentioned technical problem, the technical solution adopted in the present invention is: a kind of one brings out the three-dimensional Compact multi-channel light wavelength division multiplexing of light, including N number of filter plate that common wavelength channel fiber collimator, N number of Single wavelength channel fiber collimator and Single wavelength channel fiber collimator one_to_one corresponding are arranged, a wave band in each filter plate correspondence optical signal transmissive；Also include optical parallel plate and guiding prism, described filter plate is that two column distributions are on the same plane of optical parallel plate, optical parallel plate is additionally provided with the HR high-reflecting film for light wave reflection and the Edge filter plate for light wavelength-division energy hard, prism setting corresponding with Edge filter plate of leading with in the plane of aforesaid plane parallel；
Common wavelength channel fiber collimator launches multichannel light signal, after optical parallel plate reflects, is transmitted through Edge filter plate；Part optical signals is reflexed to optical parallel plate by Edge filter plate, as the multichannel light signal source of first row filter plate；All the other optical signals enter guiding prism through Edge filter plate, are again introduced into optical parallel plate through guiding prism guiding, as the multichannel light signal source of secondary series filter plate；First row filter plate, secondary series filter plate are respectively cooperating with HR high-reflecting film, it is achieved the OWDM function of multichannel light signal, make the optical signal of specific wavelength enter corresponding Single wavelength channel fiber collimator.
Described guiding prism includes the first triangular prism, the second triangular prism and total reflection prism in the same direction, first triangular prism, the second triangular prism are divided into the two ends, left and right of total reflection prism in the same direction, and the inclined-plane of the first triangular prism and the inclined-plane of the second triangular prism are oppositely arranged.
Described guiding prism adopts the logical luminescent material of optics.
Described N is not less than 8.
Also including substrate, described common wavelength channel fiber collimator, N number of Single wavelength channel fiber collimator, optical parallel plate and guiding prism are individually fixed on substrate.
It is any that described substrate adopts in quartz glass, Pyrex, pottery, kovar alloy or invar alloy.
Compared with prior art, the present invention reachesBeneficial effectIt is: adopt Edge filter plate, in conjunction with guiding prism, multichannel light signal is divided into two, the coupling distance of part Single wavelength channel fiber collimator and common wavelength channel fiber collimator can be shortened, effectively reduce the loss of multichannel light signal, significantly improve the work efficiency of light wavelength division multiplexing；2, adopt HR high-reflecting film to carry out the reflection of optical signal, it is possible to realize light wavelength division multiplexing one and bring out light, meet single-ended go out light user's request；3, filter plate is that two column distributions are on the same plane of optical parallel plate, structure is compacter, the volume of light wavelength division multiplexing can be reduced, additionally, filter plate according to the incidence point of optical signal directly paste with on optical parallel plate, it is easy to filter plate and location is installed, it is possible to increase the production efficiency of light partial wave multiplexer.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention 8 passage light wavelength division multiplexing.
Fig. 2 is the structural representation of optical parallel plate in Fig. 1.
Fig. 3 leads the A of prism to structural representation in Fig. 1.
In figure: 1, common wavelength channel fiber collimator；2, Single wavelength channel fiber collimator；3, filter plate；4, optical parallel plate；5, HR high-reflecting film；6, Edge filter plate；7a, the first triangular prism；7b, the second triangular prism；7c, in the same direction total reflection prism.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.Following example are only for clearly illustrating technical scheme, and can not limit the scope of the invention with this.
For 8 passages, as shown in Figure 1 and Figure 2, including 8 filter plates 3 that a common wavelength channel fiber collimator 4,8 Single wavelength channel fiber collimators 2 of 1, optical parallel plate and Single wavelength channel fiber collimator 2 one_to_one corresponding are arranged, the corresponding optical signal filtering a wave band of each filter plate 3.8 filter plates 3 are equally assigned into two groups, it is pasted in a plane of optical parallel plate 4 in two row, with another plane of this plane parallel is pasted with Edge filter plate 6 and HR high-reflecting film 5, Edge filter plate 6 can separately in multichannel light signal the optical signal of subwave length pass through, the optical signal of its commplementary wave length will all be reflected onto optical parallel plate 4, HR high-reflecting film 5 does not then allow the optical signal of any wavelength to pass through, only for the reflection of optical signal.The incidence point setting corresponding with the eye point of Edge filter plate 6 of guiding prism, the optical signal through Edge filter plate 6 is directed to secondary series filter plate through guiding prism.
As shown in Figure 3, guiding prism includes the first triangular prism 7a, the second triangular prism 7b and total reflection prism 7c in the same direction, first triangular prism 7a, the second triangular prism 7b are divided into the two ends, left and right of total reflection prism 7c in the same direction, and the inclined-plane of the first triangular prism 7a and the inclined-plane of the second triangular prism 7b are oppositely arranged.In Fig. 3, the triangular prism that the first triangular prism 7a, the second triangular prism 7b all adopt cross section to be isosceles right triangle, the inclined-plane of the first triangular prism 7a is downward, and the inclined-plane of the second triangular prism 7b and the inclined-plane of the first triangular prism 7a are relative, upwards.Total reflection prism 7c selects double; two in the same direction 45 ° of total reflection prisms or is coated with double; two in the same direction 45 ° of reflecting prisms of high-reflecting film in the same direction.Whether the first triangular prism 7a, the second triangular prism 7b still in the same direction total reflection prism 7c all select optics to lead to luminescent material, it is preferable that optical glass.
In order to better fix each parts, light wavelength division multiplexing disclosed by the invention also includes substrate (not shown), and common wavelength channel fiber collimator 1, Single wavelength channel fiber collimator 2, optical parallel plate 4 and guiding prism are individually fixed on substrate.It is any that substrate can adopt in quartz glass, Pyrex, pottery, kovar alloy or invar alloy.
In order to better embody beneficial effects of the present invention, the present invention is applicable to 8 passages and above light wavelength division multiplexing, and namely N is not less than 8.
Common wavelength channel fiber collimator 1 launches multichannel light signal, reflect through optical parallel plate 4, launch to Edge filter plate 6, part optical signals is reflexed to first row filter plate by Edge filter plate 6, wherein part optical signals enters corresponding first Single wavelength channel fiber collimator 2 through first filter plate of first row filter plate, all the other optical signals are reflected onto optical parallel plate 4, reflect through HR highly reflecting films, the refraction again of optical parallel plate 4, second corresponding Single wavelength channel fiber collimator 2 is entered by the second of first row filter plate filter plate, the rest may be inferred, until the whole partial waves of all filter plates of first row 3 complete；By the optical signal output of Edge filter plate 6 to the prism that leads in multichannel light signal, guiding prism will transmit through the optical signal of Edge filter plate 6 and is directed to secondary series filter plate, incident light source as secondary series filter plate, reflect through optical parallel plate 4, the part optical signals that makes of first filter plate of secondary series filter plate enters first corresponding Single wavelength channel fiber collimator 2, all the other optical signals reflex to optical parallel plate 4 again, reflect through HR highly reflecting films, the refraction again of optical parallel plate 4, second Single wavelength channel fiber collimator 2 of correspondence is entered by the second of secondary series filter plate filter plate 3, the rest may be inferred, realize the light wavelength-division of multichannel light signal, the optical signal making specific wavelength enters corresponding Single wavelength channel fiber collimator 2.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the technology of the present invention principle; can also making some improvement and deformation, these improve and deformation also should be regarded as protection scope of the present invention.
Claims (6)
1. the three-dimensional Compact multi-channel light wavelength division multiplexing bringing out light, including N number of filter plate that common wavelength channel fiber collimator, N number of Single wavelength channel fiber collimator and Single wavelength channel fiber collimator one_to_one corresponding are arranged, a wave band in each filter plate correspondence optical signal transmissive；It is characterized in that: also include optical parallel plate and guiding prism, described filter plate is that two column distributions are on the same plane of optical parallel plate, optical parallel plate is additionally provided with the HR high-reflecting film for light wave reflection and the Edge filter plate for OWDM function with in the plane of aforesaid plane parallel, prism setting corresponding with Edge filter plate of leading；
Common wavelength channel fiber collimator launches multichannel light signal, after optical parallel plate reflects, is transmitted through Edge filter plate；Part optical signals is reflexed to optical parallel plate by Edge filter plate, as the multichannel light signal source of first row filter plate；All the other optical signals enter guiding prism through Edge filter plate, are again introduced into optical parallel plate through guiding prism guiding, as the multichannel light signal source of secondary series filter plate；First row filter plate, secondary series filter plate are respectively cooperating with HR high-reflecting film, it is achieved the OWDM function of multichannel light signal, make the optical signal of specific wavelength enter corresponding Single wavelength channel fiber collimator.
2. according to claim 1 one bring out the three-dimensional Compact multi-channel light wavelength division multiplexing of light, it is characterized in that, described guiding prism includes the first triangular prism, the second triangular prism and total reflection prism in the same direction, first triangular prism, the second triangular prism are divided into the two ends, left and right of total reflection prism in the same direction, and the inclined-plane of the first triangular prism and the inclined-plane of the second triangular prism are oppositely arranged.
3. according to claim 2 one bring out the three-dimensional Compact multi-channel light wavelength division multiplexing of light, it is characterised in that described guiding prism adopts the logical luminescent material of optics.
4. according to claim 1 one bring out the three-dimensional Compact multi-channel light wavelength division multiplexing of light, it is characterised in that described N is not less than 8.
5. according to claim 1 one bring out the three-dimensional Compact multi-channel light wavelength division multiplexing of light, it is characterized in that, also including substrate, described common wavelength channel fiber collimator, N number of Single wavelength channel fiber collimator, optical parallel plate and guiding prism are individually fixed on substrate.
6. according to claim 5 one bring out the low-loss Compact multi-channel light wavelength division multiplexing of light, it is characterised in that it is any that described substrate adopts in quartz glass, Pyrex, pottery, kovar alloy or invar alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610155126.5A CN105739025A (en) | 2016-03-18 | 2016-03-18 | Three-dimensional compact multichannel light wavelength division multiplexer with one light emergent end |
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| CN201610155126.5A CN105739025A (en) | 2016-03-18 | 2016-03-18 | Three-dimensional compact multichannel light wavelength division multiplexer with one light emergent end |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106094118A (en) * | 2016-07-29 | 2016-11-09 | 苏州伽蓝致远电子科技股份有限公司 | Tight type Wavelength-division multiplexer/demultiplexer |
| CN107422424A (en) * | 2017-08-14 | 2017-12-01 | 太仓宏微电子科技有限公司 | A kind of optical switching array based on tunable optic filter |
| CN110927886A (en) * | 2019-12-20 | 2020-03-27 | 昂纳信息技术（深圳）有限公司 | Wavelength division multiplexer |
| CN111458803A (en) * | 2020-05-19 | 2020-07-28 | 腾景科技股份有限公司 | Stable and adjustable CWDM small module |
| US11460641B2 (en) | 2015-12-18 | 2022-10-04 | Alliance Fiber Optic Products, Inc. | Free-space optical collimator |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11460641B2 (en) | 2015-12-18 | 2022-10-04 | Alliance Fiber Optic Products, Inc. | Free-space optical collimator |
| CN106094118A (en) * | 2016-07-29 | 2016-11-09 | 苏州伽蓝致远电子科技股份有限公司 | Tight type Wavelength-division multiplexer/demultiplexer |
| CN107422424A (en) * | 2017-08-14 | 2017-12-01 | 太仓宏微电子科技有限公司 | A kind of optical switching array based on tunable optic filter |
| CN110927886A (en) * | 2019-12-20 | 2020-03-27 | 昂纳信息技术（深圳）有限公司 | Wavelength division multiplexer |
| CN111458803A (en) * | 2020-05-19 | 2020-07-28 | 腾景科技股份有限公司 | Stable and adjustable CWDM small module |
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Application publication date: 20160706 |