CN204928849U - Air -gap wavelength devision multiplex separates multiplexing optical assembly and optical device - Google Patents
Air -gap wavelength devision multiplex separates multiplexing optical assembly and optical device Download PDFInfo
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- CN204928849U CN204928849U CN201520540821.4U CN201520540821U CN204928849U CN 204928849 U CN204928849 U CN 204928849U CN 201520540821 U CN201520540821 U CN 201520540821U CN 204928849 U CN204928849 U CN 204928849U
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Abstract
The utility model discloses an air -gap wavelength devision multiplex separates multiplexing optical assembly and optical device, the optical assembly includes: base plate and integrated total reflection slide and light filter group on the base plate, light filter group is including a plurality of light filters, be the air -gap between total reflection slide and the light filter group, the light signal from light filter incident and the air -gap between light filter and total reflection slide in multiple reflection or the air -gap of light signal between light filter and total reflection slide multiple reflection follow the filter plate outgoing. The light signal transmits in the air -gap between optical assembly inner total reflection slide and the filter plate group in this application, and the transmission path interval is easily regulated and control, and the inserting of light signal is decreased for a short time, easily equipment and be fit for batch production of optical assembly, whole light path need not through the colloid, has improved the overall reliability of optical assembly and optical device.
Description
Technical field
The invention belongs to technical field of photo communication, be specifically related to a kind of air-gap wavelength division multiplexing/demultiplexing optical assembly and optical device.
Background technology
Growing along with communication field transmission capacity, traditional transmission technology has been difficult to the requirement meeting transmission capacity and transmission speed, the field such as heart application and internet core node, educational institution, search engine, large-scale website, high-performance calculation in the data, not enough for preventing the bandwidth resources of core network from occurring, common carrier and service suppliers dispose planning express network agreement of new generation.IEEE (InstituteofElectricalandElectronicsEngineers, IEEE) has formulated unified standard to 40Gbps and the 100Gbps Ethernet under P802.3ba engineering duty group.
But along with the mankind are to the quick growth of communication bandwidth requirements, existing communication systems face capacity and energy consumption two is challenged greatly.Due to can in less space, lower energy consumption takies and can provide larger bandwidth down, the research and development about parallel optical module starts increasing.Parallel optical module is the multiple optical fiber of multiple laser alignment in an independent module, such as be applicable to the 4 passage short distance transceiver modules that short distance high bandwidth calculates and exchanges application, be integrated with four independently to send and receive path, and be connected to 12 passage multimode ribbon fibers.
Application number be 201210184192.7 Chinese patent application disclose a kind of wavelength division multiplexing demultiplexing optical assembly, it comprises transmitting terminal, transmitting terminal optical frames group, receiving terminal optical frames group and the receiving terminal arranged successively, comprise filter set and free-space wavelength division multiplexing device respectively in transmitting terminal optical frames group and receiving terminal optical frames group, during light transmission, need multiple reflections be carried out at free-space wavelength division multiplexing device inside.Use plane light wave guiding element to realize point multiplexing (MUX) and the demultiplexing (Demux) of multi-path light in above-mentioned patent application, cost is high, and due to technical limitations plane light wave guiding element Insertion Loss comparatively large, sun adjuster part performance and production cost are proposed very high requirement, are not suitable for batch production.
Summary of the invention
The application one embodiment provides a kind of air-gap wavelength division multiplexing/demultiplexing optical assembly, described optical assembly comprises: substrate and the total reflection slide be integrated on substrate and filter set, described filter set comprises some filters, be air-gap between described total reflection slide and filter set, light signal and air-gap filter and total reflection slide between in multiple reflections or light signal air-gap filter and total reflection slide between in multiple reflections from filter plate outgoing incident from filter.
In one embodiment, described total reflection slide comprises a fully-reflected plane, and light signal is reflected in air-gap by fully-reflected plane between adjacent filter.
In one embodiment, described total reflection slide comprises some the first fully-reflected planes of being oppositely arranged and the second fully-reflected plane, from the light of one of them filter directive total reflection slide successively by filter that directive after the first fully reflecting surface and the second fully reflecting surface total reflection is adjacent.
In one embodiment, described total reflection slide comprises some prism structures, and described first fully-reflected plane and the second fully-reflected plane are wherein two surfaces of described prism structure.
In one embodiment, described total reflection slide comprises stator, and described prism structure is connected with described stator.
In one embodiment, described substrate is glass substrate, ceramic substrate or plastic substrate, and described total reflection slide and filter set are fixed on described substrate by glue.
In one embodiment, described filter is band pass filter.
In one embodiment, the filter in described filter set is spaced set on substrate.
The application one embodiment also provides a kind of optical device, and described optical device is wavelength division multiplexing optical device, and described optical device comprises:
Laser array, comprises some lasers be positioned at outside filter set, provides the light signal that some wavelength are different;
Optical assembly, the total reflection slide comprising substrate and be integrated on substrate and filter set, described filter set comprises some filters, be air-gap between described total reflection slide and filter set, incident from the filter respectively and multiple reflections in air-gap between filter and total reflection slide of the multipath light signal of laser emitting, transmits after being multiplexed into a road light signal.
The application one embodiment also provides a kind of optical device, and described optical device is Wave Decomposition multiplexed optical device, and described optical device comprises:
Optical assembly, the total reflection slide comprising substrate and be integrated on substrate and filter set, described filter set comprises some filters, be air-gap between described total reflection slide and filter set, multiple reflections in the air-gap of a road light signal between filter and total reflection slide also demultiplexes into the different multipath light signal of wavelength respectively from filter plate outgoing;
Detector set, comprises some detectors be positioned at outside filter set, for receiving the light signal from different filter plate outgoing.
Compared with prior art, in the technical scheme of the application, transmit in the air-gap of light signal between optical assembly inner total reflection slide and filter plate group, transmission channel spacing is easy to regulation and control, and the Insertion Loss of light signal is little, and optical assembly is easy to assembling and is applicable to batch production; Whole light path, without the need to through colloid, improves the global reliability of optical assembly and optical device; Prism structure utilizes light total reflection, without the need to plated film, reduces production cost; Prism structure can use the die sinking of engineering resin material simultaneously, reduces production cost further; Light signal can be carried out multipath reflection by the prism structure on total reflection slide, can discharge enough spaces, to meet the small-sized encapsulated requirement of high rate optical communications applications while reduction assembly cost.
Accompanying drawing explanation
Fig. 1 is the structural representation of the application first execution mode hollow air-gap wavelength division multiplexing optical assembly;
Fig. 2 is the structural representation of the application first execution mode hollow air-gap Wave Decomposition multiplexed optical assembly;
Fig. 3 is the structural representation of the application second execution mode hollow air-gap wavelength division multiplexing optical assembly;
Fig. 4 is the structural representation of the application second execution mode hollow air-gap Wave Decomposition multiplexed optical assembly;
Fig. 5 is the size comparison figure of the application first execution mode and the second execution mode optical assembly;
Fig. 6 is the structural representation of wavelength division multiplexed light device in the application the 3rd execution mode;
Fig. 7 is the structural representation of the application the 4th execution mode medium wave decomposition multiplex optical device.
Embodiment
Below with reference to embodiment shown in the drawings, the application is described in detail.But these execution modes do not limit the application, the structure that those of ordinary skill in the art makes according to these execution modes, method or conversion functionally are all included in the protection range of the application.
In each diagram of the application, for the ease of diagram, some size of structure or part can relative to other structure or partial enlargement, therefore, only for illustrating the basic structure of the theme of the application.
Used herein such as " on ", " top ", D score, the representation space relative position such as " below " term be describe a unit as shown in the drawings or the feature relation relative to another unit or feature for the object being convenient to illustrate.The term of relative space position can be intended to comprise equipment in the different azimuth used or in work except orientation shown in figure.Such as, if by the equipment upset in figure, be then described to be positioned at other unit or feature " below " or " under " unit will be positioned at other unit or feature " top ".Therefore, exemplary term " below " can include above and below these two kinds of orientation.Equipment can otherwise be directed (90-degree rotation or other towards), and correspondingly herein interpreted use with the description language of space correlation.
When element or layer be called as another parts or layer " on ", " be connected " with another parts or layer time, its can directly on these another parts or layer, be connected to this another parts or layer, or intermediary element or layer can be there is.On the contrary, when parts are called as " directly on another parts or layer ", " being connected directly between on another parts or layer ", intermediate member or layer can not be there is.
Shown in ginseng Fig. 1, Fig. 2, introduce the first execution mode of the application's air-gap wavelength division multiplexing/demultiplexing optical assembly 10.It comprises substrate 11 and integrated total reflection slide 12 on the substrate 11 and filter set 13.Substrate 11 is the plastic substrate that glass substrate or ceramic substrate or the coefficient of expansion are lower, total reflection slide 12 and filter set 13 are individually fixed on substrate 11 by glue, filter set 13 comprises some filters, is air-gap between total reflection slide and filter set.Total reflection slide 12 comprises a fully-reflected plane 121, and light signal is reflected in air-gap by fully-reflected plane between adjacent filter.
In present embodiment, filter is band pass filter, and filter is spaced set on substrate.Filter can allow the monochromatic light transmission of a certain wave band or a certain wavelength, and the light of its all band or other wavelength is all by its reflection.
Shown in ginseng Fig. 1, be described for the principle of four-way to present embodiment wavelength division multiplexing, wavelength is λ
1, λ
2, λ
3, λ
4four road light signals enter in optical assembly respectively by four filter plates, four filter plates can allow wavelength to be λ respectively
1, λ
2, λ
3, λ
4light signal transmission.Wavelength is λ
1light signal from first filter plate incidence, and to be reflected by the fully-reflected plane of total reflection slide, optical signal transmission to the second filter plate after reflection, and be λ with the wavelength of second filter plate transmission
2optical signal become a road light signal, then, this light signal with the wavelength of the 3rd filter plate transmission is λ again respectively
3light signal, the 4th filter plate transmission wavelength be λ
4light signal be coupled, transmitted by optical fiber etc. after being finally multiplexed into a road light signal.
Shown in ginseng Fig. 2, be described for the principle that four-way is multiplexing to present embodiment Wave Decomposition equally, wavelength is λ
1, λ
2, λ
3, λ
4four road light signals enter in optical assembly respectively by four filter plates, four filter plates can allow wavelength to be λ respectively
1, λ
2, λ
3, λ
4light signal transmission.One road composite optical signal is conveyed in optical assembly by optical fiber etc., and through the 4th filter plate, the 4th filter plate can only transmission peak wavelength be λ
4light signal, and the light signal of other wavelength reflects through the fully-reflected plane of the 4th filter plate and total reflection slide successively, and incides on the 3rd filter plate, and the 3rd filter plate can only transmission peak wavelength be λ
3light signal, the light signal of other wavelength continues reflection, the like, finally from second filter plate and first filter plate respectively outgoing wavelength be λ
2and λ
1light signal.
Transmit in the air-gap of light signal between optical assembly inner total reflection slide and filter plate group in present embodiment, transmission channel spacing is easy to regulation and control, and the Insertion Loss of light signal is little, and optical assembly is easy to assembling and is applicable to batch production.
Should be understood that, be described for four filter plates in present embodiment, and four filter plates spaced set at grade, the quantity of filter plate and position can be designed respectively according to different situations in other embodiments, only need to meet filter plate and are positioned on the round of light signal.
Shown in ginseng Fig. 3, Fig. 4, introduce the second execution mode of the application's air-gap wavelength division multiplexing/demultiplexing optical assembly 20.It comprises substrate 21 and integrated total reflection slide 22 on the base plate (21 and filter set 23.Substrate 21 is glass substrate or ceramic substrate, and total reflection slide 22 and filter set 23 are individually fixed on substrate 21 by glue, and filter set 23 comprises some filters, are air-gap between total reflection slide and filter set.
Wherein, total reflection slide 22 comprises stator 221 and is installed on the some prism structures 222 on stator 221, the cross sectional shape of this prism structure 222 is isosceles triangle, each prism structure 222 comprises symmetrically arranged first fully-reflected plane 2221 and the second fully reflecting surface 2222, and the prism structure being positioned at two ends is owing to only needing a fully reflecting surface, the cross section being therefore positioned at the prism structure of end is right-angled triangle.Stator 221 in present embodiment can be assembled by isolating construction with prism structure 222, structure that also can be integrated.Light signal is reflected in air-gap by the first fully-reflected plane and the second fully-reflected plane between adjacent filter.
In present embodiment, filter is band pass filter, and filter is spaced set on substrate.Filter can allow the monochromatic light transmission of a certain wave band or a certain wavelength, and the light of its all band or other wavelength is all by its reflection.
Should be understood that, cross section is adopted to be the prism structure 222 of isosceles triangle in the present embodiment, also the prism structure of other shapes can be adopted in other embodiments, this prism structure only need comprise the first fully-reflected plane and the second fully-reflected plane that are oppositely arranged, if cross section is the prism structure etc. of isosceles trapezoid.
Shown in ginseng Fig. 3, be described for the principle of four-way to present embodiment wavelength division multiplexing, wavelength is λ
1, λ
2, λ
3, λ
4four road light signals enter in optical assembly respectively by four filter plates, four filter plates can allow wavelength to be λ respectively
1, λ
2, λ
3, λ
4light signal transmission.Wavelength is λ
1light signal from first filter plate incidence, and reflected by the first fully-reflected plane adjacent on prism structure in total reflection slide and the second fully-reflected plane, optical signal transmission to the second filter plate after reflection, and be λ with the wavelength of second filter plate transmission
2optical signal become a road light signal, then, this light signal with the wavelength of the 3rd filter plate transmission is λ again respectively
3light signal, the 4th filter plate transmission wavelength be λ
4light signal be coupled, transmitted by optical fiber etc. after being finally multiplexed into a road light signal.
Shown in ginseng Fig. 4, be described for the principle that four-way is multiplexing to present embodiment Wave Decomposition equally, wavelength is λ
1, λ
2, λ
3, λ
4four road light signals enter in optical assembly respectively by four filter plates, four filter plates can allow wavelength to be λ respectively
1, λ
2, λ
3, λ
4light signal transmission.One road composite optical signal is conveyed in optical assembly by optical fiber etc., and through the 4th filter plate, the 4th filter plate can only transmission peak wavelength be λ
4light signal, and the light signal of other wavelength successively in the 4th filter plate and total reflection slide the first fully-reflected plane of prism structure and the second fully-reflected plane reflect, and inciding on the 3rd filter plate, the 3rd filter plate can only transmission peak wavelength be λ
3light signal, the light signal of other wavelength continues reflection, the like, finally from second filter plate and first filter plate respectively outgoing wavelength be λ
2and λ
1light signal.
Transmit in the air-gap of light signal between optical assembly inner total reflection slide and filter plate group in present embodiment, transmission channel spacing is easy to regulation and control, and the Insertion Loss of light signal is little, and optical assembly is easy to assembling and is applicable to batch production; Prism structure utilizes light total reflection, without the need to plated film, reduces production cost; Prism structure can use the die sinking of engineering resin material simultaneously, reduces production cost further.
Shown in ginseng Fig. 5, compared with the first execution mode, light signal can be carried out multipath reflection by the prism structure in present embodiment on total reflection slide, can discharge enough spaces, to meet the small-sized encapsulated requirement of high rate optical communications applications while reduction assembly cost.
Should be understood that, be described for four filter plates in present embodiment, and four filter plates spaced set at grade, the quantity of filter plate and position can be designed respectively according to different situations in other embodiments, only need to meet filter plate and are positioned on the round of light signal.
Shown in ginseng Fig. 6, introduce the 3rd execution mode of the application's wavelength division multiplexing optical device.This wavelength division multiplexing optical device 100 comprises:
Laser array 30, comprises some lasers be positioned at outside filter set, provides the light signal that some wavelength are different.Wherein, this laser array is the laser array of the Coarse Wavelength Division Multiplexing wavelength that IEEE802.3ba specifies, its effective light-emitting zone equidistant arrangement on the same line;
Optical assembly 20, the optical assembly in present embodiment is identical with the optical assembly in the second execution mode, no longer repeats at this.Incident from the filter respectively and multiple reflections in air-gap between filter and total reflection slide of the multipath light signal of laser emitting, is finally multiplexed into a road light signal;
Output optical fibre 40, final light signal is transmitted by output optical fibre.
Should be noted that, optical device in present embodiment can also comprise other along light path arrange optical element to improve the performance of optical device, as arranged some silicon lens and/or pH effect plate between laser array 40 and optical assembly 20, the coaxial telecentric beam path that light signal can be formed through silicon lens group, plays the inching effect to light path in the coupling of pH effect plate light path; Between optical assembly 20 and output optical fibre 40, also some optical isolators and/or condenser lens can be set.
Shown in ginseng Fig. 7, introduce the 4th execution mode of the application's Wave Decomposition multiplexed optical device.This Wave Decomposition multiplexed optical device 200 comprises:
Input optical fibre 50, for input optical signal;
Optical assembly 20, the optical assembly in present embodiment is identical with the optical assembly in the second execution mode, no longer repeats at this.Multiple reflections in the air-gap of one road light signal between filter and total reflection slide also demultiplexes into the different multipath light signal of wavelength respectively from filter plate outgoing;
Detector set 60, comprises some detectors be positioned at outside filter set, for receiving the light signal from different filter plate outgoing.The detector set of the Coarse Wavelength Division Multiplexing wavelength that this detector set 60 specifies for IEEE802.3ba, its effective receive zone territory equidistantly arranges on the same line.
Should be noted that, optical device in present embodiment can also comprise other along light path arrange optical element to improve the performance of optical device, as arranged some silicon lens and/or pH effect plate between detector set 60 and optical assembly 20, the coaxial telecentric beam path that light signal can be formed through silicon lens group; Between optical assembly 20 and input optical fibre 50, also can collimating lens be set.
The application, by above-described embodiment, has following beneficial effect:
Transmit in the air-gap of light signal between optical assembly inner total reflection slide and filter plate group, transmission channel spacing is easy to regulation and control, and the Insertion Loss of light signal is little, and optical assembly is easy to assembling and is applicable to batch production; Whole light path, without the need to through colloid, improves the global reliability of optical assembly and optical device; Prism structure utilizes light total reflection, without the need to plated film, reduces production cost; Prism structure can use the die sinking of engineering resin material simultaneously, reduces production cost further; Light signal can be carried out multipath reflection by the prism structure on total reflection slide, can discharge enough spaces, to meet the small-sized encapsulated requirement of high rate optical communications applications while reduction assembly cost.
Be to be understood that, although this specification is described according to execution mode, but not each execution mode only comprises an independently technical scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, technical scheme in each execution mode also through appropriately combined, can form other execution modes that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only the illustrating of feasibility execution mode for the application; they are also not used to the protection range limiting the application, and the equivalent implementations that all the application's of disengaging skill spirit is done or change all should be included within the protection range of the application.
Claims (10)
1. air-gap wavelength division multiplexing/demultiplexing optical assembly, it is characterized in that, described optical assembly comprises: substrate and the total reflection slide be integrated on substrate and filter set, described filter set comprises some filters, be air-gap between described total reflection slide and filter set, light signal and air-gap filter and total reflection slide between in multiple reflections or light signal air-gap filter and total reflection slide between in multiple reflections from filter plate outgoing incident from filter.
2. air-gap wavelength division multiplexing/demultiplexing optical assembly according to claim 1, is characterized in that, described total reflection slide comprises a fully-reflected plane, and light signal is reflected in air-gap by fully-reflected plane between adjacent filter.
3. air-gap wavelength division multiplexing/demultiplexing optical assembly according to claim 1, it is characterized in that, described total reflection slide comprises some the first fully-reflected planes of being oppositely arranged and the second fully-reflected plane, from the light of one of them filter directive total reflection slide successively by filter that directive after the first fully reflecting surface and the second fully reflecting surface total reflection is adjacent.
4. air-gap wavelength division multiplexing/demultiplexing optical assembly according to claim 3, is characterized in that, described total reflection slide comprises some prism structures, and described first fully-reflected plane and the second fully-reflected plane are wherein two surfaces of described prism structure.
5. air-gap wavelength division multiplexing/demultiplexing optical assembly according to claim 4, is characterized in that, described total reflection slide comprises stator, and described prism structure is connected with described stator.
6. air-gap wavelength division multiplexing/demultiplexing optical assembly according to claim 1, is characterized in that, described substrate is glass substrate, ceramic substrate or plastic substrate, and described total reflection slide and filter set are fixed on described substrate by glue.
7. air-gap wavelength division multiplexing/demultiplexing optical assembly according to claim 1, is characterized in that, described filter is band pass filter.
8. air-gap wavelength division multiplexing/demultiplexing optical assembly according to claim 1, is characterized in that, the filter in described filter set is spaced set on substrate.
9. an optical device, described optical device is wavelength division multiplexing optical device, it is characterized in that, described optical device comprises:
Laser array, comprises some lasers be positioned at outside filter set, provides the light signal that some wavelength are different;
Optical assembly, the total reflection slide comprising substrate and be integrated on substrate and filter set, described filter set comprises some filters, be air-gap between described total reflection slide and filter set, incident from the filter respectively and multiple reflections in air-gap between filter and total reflection slide of the multipath light signal of laser emitting, transmits after being multiplexed into a road light signal.
10. an optical device, described optical device is Wave Decomposition multiplexed optical device, it is characterized in that, described optical device comprises:
Optical assembly, the total reflection slide comprising substrate and be integrated on substrate and filter set, described filter set comprises some filters, be air-gap between described total reflection slide and filter set, multiple reflections in the air-gap of a road light signal between filter and total reflection slide also demultiplexes into the different multipath light signal of wavelength respectively from filter plate outgoing;
Detector set, comprises some detectors be positioned at outside filter set, for receiving the light signal from different filter plate outgoing.
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| CN201520540821.4U CN204928849U (en) | 2015-07-24 | 2015-07-24 | Air -gap wavelength devision multiplex separates multiplexing optical assembly and optical device |
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| CN201520540821.4U CN204928849U (en) | 2015-07-24 | 2015-07-24 | Air -gap wavelength devision multiplex separates multiplexing optical assembly and optical device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717585A (en) * | 2016-03-31 | 2016-06-29 | 武汉光迅科技股份有限公司 | Light receiving assembly of tree structure |
| CN107797116A (en) * | 2016-08-31 | 2018-03-13 | 通用汽车环球科技运作有限责任公司 | Optical sensor |
| CN107817558A (en) * | 2016-09-14 | 2018-03-20 | 苏州旭创科技有限公司 | Optical wavelength division multiplexing device |
| CN108551372A (en) * | 2018-03-23 | 2018-09-18 | 成都聚芯光科通信设备有限责任公司 | A kind of multi-wavelength spatial offset division wave module and optical module |
-
2015
- 2015-07-24 CN CN201520540821.4U patent/CN204928849U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105717585A (en) * | 2016-03-31 | 2016-06-29 | 武汉光迅科技股份有限公司 | Light receiving assembly of tree structure |
| CN107797116A (en) * | 2016-08-31 | 2018-03-13 | 通用汽车环球科技运作有限责任公司 | Optical sensor |
| CN107817558A (en) * | 2016-09-14 | 2018-03-20 | 苏州旭创科技有限公司 | Optical wavelength division multiplexing device |
| CN108551372A (en) * | 2018-03-23 | 2018-09-18 | 成都聚芯光科通信设备有限责任公司 | A kind of multi-wavelength spatial offset division wave module and optical module |
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Effective date of registration: 20190128 Address after: 244002 No. 5555, West Section of Cuihu Fourth Road, Tongling Economic and Technological Development Zone, Anhui Province Patentee after: Tongling Xuchuang Technology Co., Ltd. Address before: 215123 Xinhu Street 328 Creative Industry Park 12-A3, Suzhou Industrial Park, Jiangsu Province Patentee before: Innolight Technology Ltd. |