CN104880774A - Wavelength division multiplexing demultiplexing device and optical module - Google Patents
Wavelength division multiplexing demultiplexing device and optical module Download PDFInfo
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- CN104880774A CN104880774A CN201510273417.XA CN201510273417A CN104880774A CN 104880774 A CN104880774 A CN 104880774A CN 201510273417 A CN201510273417 A CN 201510273417A CN 104880774 A CN104880774 A CN 104880774A
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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
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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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Abstract
The invention discloses a wavelength division multiplexing demultiplexing device and an optical module. The wavelength division multiplexing demultiplexing device comprises a substrate and a plurality of optical filters. The substrate comprises a first surface, a second surface and a side surface, wherein the first surface is opposite to the second surface; the side surface connects the first surface and the second surface. The first surface is a fully reflecting surface. The plurality of optical filters are arranged on the second surface. The wavelength division multiplexing demultiplexing device also comprises a refraction component which is connected to the first surface. When incident light vertical to the first surface is headed to the refraction component, the refraction component bends the incident light towards an internal portion of the substrate so as to form a certain angle, then the light arrives at the second surface and passes through each optical filter and then the light is emitted from the substrate. The incident light enters into along a direction which is vertical to the first surface of the substrate. Through an effect of the refraction component, a propagation direction of the light in the substrate is made to deviate from the incident direction. Through the above design, the size of the substrate in the incident direction of the incident light can be compressed so that the size of the whole device can be reduced.
Description
Technical field
The present invention relates to technical field of photo communication, be specifically related to a kind of wavelength-division multiplex Deplexing apparatus and optical module.
Background technology
Along with the mankind are to the quick growth of the demand of communication bandwidth, existing communication systems face capacity and energy consumption two is challenged greatly.In order in less space, lower energy consumption takies and lower can provide larger bandwidth, the research and development about parallel optical module starts increasing.But in prior art, the package dimension of this kind of wavelength-division multiplex Deplexing apparatus is excessive.
As shown in Figure 1, in the prior art, the light source etc. of substrate 10, optical filter 20, transmitting incident ray is encapsulated in same cavity, to form the optical module with wavelength-division multiplex Deplexing apparatus, suppose that now cavity extends along B direction, consider simplification of flowsheet, the direction of incident ray is arranged to be parallel to B direction.The first surface 11 of substrate 10 is total reflection surface, the second surface 12 of substrate 10 is provided with multiple optical filter 20, incident ray by the first surface 11 of substrate 10 incident and in described substrate 10 multiple reflections, then incident ray is by optical filter 20 outgoing, here, substrate 10 and the A direction shape α that has angle puts, make along the incidence of B direction incident ray can in substrate 10 multiple reflections, but, now substrate 10 is owing to angularly putting, this angles limits substrate 10 in the size compression in B direction, is unfavorable for the miniaturization of optical module.
Summary of the invention
The application one embodiment provides a kind of wavelength-division multiplex Deplexing apparatus, it has less size, this wavelength-division multiplex Deplexing apparatus comprises substrate and multiple optical filter, described substrate comprises relative first surface, second surface and connect the side surface of described first surface and described second surface, described first surface is fully reflecting surface, described multiple optical filter is arranged on described second surface, described wavelength-division multiplex Deplexing apparatus also comprises the dioptric element be connected with described first surface, when described in the incident ray directive perpendicular to described first surface during dioptric element, described incident ray is arrived described second surface and penetrates from described substrate respectively through after optical filter described in each by described dioptric element after described substrate internal bend certain angle.
In one embodiment, have interval between described multiple optical filter, described incident ray is in often at least penetrating from described substrate respectively through optical filter described in each after two secondary reflections between adjacent two optical filters in described substrate.
In one embodiment, described dioptric element comprises plane of refraction, described plane of refraction favours described first surface, when described in the incident ray directive perpendicular to described first surface during dioptric element, described incident ray is arrived described second surface and penetrates from described substrate respectively through after optical filter described in each by described plane of refraction after described substrate internal bend certain angle.。
In one embodiment, on the first surface that described dioptric element is arranged at described substrate or by described side surface.
In one embodiment, described dioptric element and described substrate are formed in one structure.
In one embodiment, described plane of refraction is connect the described first surface of described substrate and the plane of described second surface.
In one embodiment, described plane of refraction is connect the described first surface of described substrate and the plane of described side surface.
In one embodiment, described optical filter will favour the deflection of light of described first surface injection to perpendicular to described first surface outgoing from described substrate.
The application one embodiment provides a kind of wavelength-division multiplex Deplexing apparatus, the optical filter comprise fully reflecting surface, being oppositely arranged with fully reflecting surface and dioptric element, when described in the incident ray directive perpendicular to described fully reflecting surface during dioptric element, described dioptric element by described incident ray to arriving described optical filter after bending certain angle between described fully reflecting surface and described optical filter and penetrating from described optical filter respectively through after optical filter described in each.
In one embodiment, the light penetrated from described optical filter is perpendicular to described fully reflecting surface.
The application one embodiment provides a kind of optical module, comprises wavelength-division multiplex Deplexing apparatus as above.
Compared with prior art, the incident ray of the technical scheme of the application is incident perpendicular to substrate first surface, the direction of propagation of light in substrate is made to depart from incident direction by the effect of dioptric element, the size of substrate in incident ray incident direction can be compressed by this design, thus be conducive to the size reducing whole device.
Accompanying drawing explanation
Fig. 1 is the structural representation of the wavelength-division multiplex Deplexing apparatus of prior art;
Fig. 2 is the structural representation of an embodiment of the wavelength-division multiplex Deplexing apparatus of the application;
Fig. 3 is the structural representation that the optical filter of an embodiment of the wavelength-division multiplex Deplexing apparatus of the application changes;
Fig. 4-Fig. 6 is the structural representation of other examples of an embodiment of the wavelength-division multiplex Deplexing apparatus of the application;
Fig. 7 is the structural representation of another embodiment of the wavelength-division multiplex Deplexing apparatus of the application;
Fig. 8 is the structural representation that the optical filter of another embodiment of the wavelength-division multiplex Deplexing apparatus of the application changes;
Fig. 9-Figure 11 is the structural representation of other examples of another embodiment of the wavelength-division multiplex Deplexing apparatus of the application.
Specific embodiment
Below with reference to specific embodiment shown in the drawings, the application is described in detail.But these embodiments do not limit the application, the structure that those of ordinary skill in the art makes according to these embodiments, method or conversion functionally are all included in the protection domain of the application.
In each diagram of the application, for the ease of diagram, some size of structure or part can be exaggerated, therefore, only for illustrating the basic structure of the theme of the application relative to other structure or part.
In addition, 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.
Ginseng Fig. 2, the optical filter 200 that the wavelength-division multiplex Deplexing apparatus of the application comprises fully reflecting surface 101, be oppositely arranged with fully reflecting surface 101 and dioptric element 300, when described in the incident ray directive perpendicular to described fully reflecting surface 101 during dioptric element 300, described dioptric element 300 by described incident ray to arriving described optical filter 200 after bending certain angle between described fully reflecting surface 101 and described optical filter 200 and penetrating from described optical filter 200 respectively through after optical filter described in each 200.Wherein, the light penetrated from described optical filter 200 is perpendicular to described fully reflecting surface 101.
Continue see Fig. 2, in the application one embodiment, wavelength-division multiplex Deplexing apparatus comprises substrate 100, multiple optical filter 200 and dioptric element 300.
Substrate 100 is arranged in the light path of incident ray, and described substrate 100 comprises the first surface 101, the second surface 102 that are oppositely arranged and connects the side surface 103 of described first surface 101 and described second surface 102, and described first surface 101 is fully reflecting surface; Multiple optical filter 200 is arranged at the described second surface 102 of described substrate 100; Dioptric element 300 connects described first surface 101 and arranges; Wherein, when described in the incident ray directive perpendicular to described first surface 101 during dioptric element 300, described incident ray is arrived described second surface 102 and penetrates from described substrate 100 respectively through after optical filter described in each 200 by described dioptric element 300 after described substrate 100 internal bend certain angle.
Here, it should be noted that, the fully reflecting surface 101 of substrate 100 can be formed by being arranged at by total reflection film on substrate 100, also or at the first surface 101 of substrate 100 is coated with the formation of total reflection material; Between described multiple optical filter 200, there is interval, interval between adjacent optical filter 200 can be fixed value, namely multiple optical filter 200 is uniformly distributed on described second surface 102, now, described incident ray often at least penetrates from described substrate 100 respectively through optical filter described in each 200 between adjacent two optical filters 200 in described substrate 100 after two secondary reflections, certainly, between optical filter 200 also can continuously every; Incident ray can be provided by light source, and light source is such as laser instrument.
In practice, need substrate 100, optical filter 200, light source etc. be encapsulated in same cavity, to form the optical module with wavelength-division multiplex Deplexing apparatus.Ginseng Fig. 2, supposes that now cavity extends along the Y direction, considers simplification of flowsheet, is arranged to be parallel to Y-direction in the direction of incident ray.In the present embodiment, incident ray is incident perpendicular to described first surface 101, here the first surface 101 of substrate 100 and second surface 102 can be arranged in parallel, namely now first surface 101 and second surface 102 are all parallel to X-direction, substrate 10 compared to the prior art angle that tilts is put (namely putting at angle with X-direction shape), the substrate 100 of the present embodiment is parallel to X-direction and puts, when identical with the substrate thickness of prior art, substrate 100 length along the Y direction can be shortened, thus reduce the size of whole wavelength-division multiplex Deplexing apparatus.In addition, when the incident ray of the present embodiment is incident to dioptric element 300, can the direction of propagation be changed, penetrate via each optical filter 200 respectively to realize incident ray, thus realize wavelength-division multiplex demultiplexing function.
In the present embodiment, described dioptric element 300 comprises plane of refraction 301, described plane of refraction 301 connects described first surface 101, and described plane of refraction 301 favours described first surface 101, when described in the incident ray directive perpendicular to described first surface 101 during dioptric element 300, described incident ray is arrived described second surface 102 and penetrates from described substrate 100 respectively through after optical filter described in each 200 by described plane of refraction 301 after described substrate 100 internal bend certain angle, here, described plane of refraction 301 is connect the described first surface 101 of described substrate 100 and the plane of described side surface 103, but not as limit, described plane of refraction 301 can be and connects the described first surface 101 of described substrate 100 and the plane of described second surface 102.Concrete, have towards the first angle β of described second surface 102 between described plane of refraction 301 and described first surface 101, described first angle β is obtuse angle.When incident ray is incident to plane of refraction 301, incident ray reflects in plane of refraction 301 place, make originally to change perpendicular to the direction of propagation of the incident ray of first surface 101, incident ray arrives described second surface 102 after substrate 100 internal bend certain angle, so, can penetrate via each optical filter 200 respectively after incident ray enters substrate 100.Here, it should be noted that, the setting of the first angle β is the direction of propagation in order to change incident ray, make incident ray to the inner deviation of substrate 100, further, enable the optical filter 200 that incident ray directive is nearest, and therefore do not limit the structure of the wavelength-division multiplex Deplexing apparatus of the present embodiment, namely the structure of wavelength-division multiplex Deplexing apparatus can be determined according to actual conditions.
Second surface 102 place of substrate 100 is evenly distributed with multiple optical filter 200, the light that optical filter 200 and incident ray penetrate through the second surface 102 of substrate 100 is corresponding to be arranged, this optical filter 200 is bandpass filter, can selectably reflect unwanted light wave, make the light wave of needs filter and penetrate optical filter 200 simultaneously.Concrete, this optical filter 200 is set as the light wave that can filter specific wavelength, and the light wave of other wavelength is then reflected back by this optical filter 200.By adjusting the setting position etc. of spacing between the thickness of substrate 100, adjacent optical filter 200 and dioptric element 300, can realize incident ray multiple reflections in substrate 100, and the emergent ray that finally formation many is parallel penetrates from multiple optical filters 200 of correspondence respectively.In the present embodiment, as shown in Figure 2, optical filter 200 is designed to parallel with described second surface 102 away from the one side of second surface 102, now, generally can departs from Y-direction from the light of optical filter 200 outgoing.In other embodiments, as shown in Figure 3, the difference of this embodiment and above-described embodiment is the structure of optical filter, the optical filter 200 ' of this embodiment is inclined-plane 201 ' away from the one side of second surface 102, described inclined-plane 201 ' is not parallel to described second surface 102, so, described optical filter 200 ' can will favour deflection of light that described first surface 101 penetrates to perpendicular to the outgoing of described first surface 101 from described substrate 100, thus can reduce installation and the manufacture difficulty of receiving trap.
The structure of the dioptric element 300 of the present embodiment is not above states bright being limited, and see Fig. 4-Fig. 6, is other examples of the dioptric element 300 of the present embodiment.As in Fig. 4, described dioptric element 300a comprises plane of refraction 301a, and described plane of refraction 301a connects first surface 101 and second surface 102 respectively, and here, dioptric element 300a and substrate 100 can be one-body molded, but not as limit.As shown in Figure 5, dioptric element 300a ' and substrate 100 can be splicing construction, now, the side surface 103 that dioptric element 300a ' is arranged at described substrate 100 is other, mutually splices fixing between dioptric element 300a ' and side surface 103 by optical cement or other modes.As shown in Figure 6, described dioptric element 300b is arranged at above described first surface 101, dioptric element 300b comprises the plane of refraction 301b receiving described incident ray and the joint face 302b connecting described plane of refraction 301b and described first surface 101, and described plane of refraction 301b and described first surface 101 are positioned at uneven plane.
Here, it should be noted that, according to light path principle of reversibility, the course of the incident ray of the present embodiment is not limited with above-described embodiment, and such as, incident ray can enter inject substrate 100 from optical filter 200 side.In addition, the wavelength-division multiplex Deplexing apparatus of one-body molded design in above-described embodiment is little relative to conventional wavelength-division multiplex Deplexing apparatus textural difference, is only have a surface tilted relative to substrate first surface; Therefore structure is simple, makes easily, and cost is also just lower.Can conveniently adjust when assembling for the wavelength-division multiplex Deplexing apparatus be stitched together, and the two parts be mutually stitched together can carry out shape or adjusted size as required, dirigibility is higher.
The incident ray of the present embodiment is incident perpendicular to substrate first surface, the direction of propagation of light in substrate is made to depart from incident direction by the effect of dioptric element, the size of substrate in incident ray incident direction can be compressed by this design, thus be conducive to the size reducing whole device.
Ginseng Fig. 7, the optical filter 500 that the wavelength-division multiplex Deplexing apparatus of the application comprises fully reflecting surface 401, be oppositely arranged with fully reflecting surface 401 and reflecting element 600, when described in the incident ray directive perpendicular to described fully reflecting surface 401 during reflecting element 600, described reflecting element 600 by described incident ray to arriving described optical filter 500 after bending certain angle between described fully reflecting surface 401 and described optical filter 500 and penetrating from described optical filter 500 respectively through after optical filter described in each 500.Wherein, the light penetrated from described optical filter 500 is perpendicular to described fully reflecting surface 401.
Continue see Fig. 7, in another embodiment of the application, wavelength-division multiplex Deplexing apparatus comprises substrate 400 and multiple optical filter 500.Described substrate 400 comprises relative first surface 401, second surface 402 and connects the side surface 403 of described first surface 401 and second surface 402.At least part of described first surface 401 is fully reflecting surface, described multiple optical filter 500 is arranged on described second surface 402, described wavelength-division multiplex Deplexing apparatus also comprises the reflecting element 600 be connected with described second surface 402, when described in the incident ray directive perpendicular to described first surface 401 during reflecting element 600, described reflecting element 600 arrives described first surface 401 after described incident ray is departed from incident direction certain angle, described incident ray in described first surface 401 place there is reflection and respectively through optical filter described in each 500 after penetrate from described substrate 400.
Here, it should be noted that, incident ray is incident perpendicular to first surface 401, therefore, when incident ray, through first surface 401, before being incident to reflecting element 600, the direction of propagation of incident ray is constant, until when incident ray arrives reflecting element 600, by the effect of reflecting element 600, the direction of propagation of incident ray is changed into and depart from Y-direction, and propagate towards described fully reflecting surface 401, and light is not orthogonal to described fully reflecting surface 401.
In the present embodiment, the fully reflecting surface 401 of substrate 400 can be formed by being arranged at by total reflection film on substrate 400, also or at the first surface 401 of substrate 400 is coated with the formation of total reflection material; Between described multiple optical filter 500, there is interval, interval between adjacent optical filter 500 can be fixed value, namely multiple optical filter 500 is uniformly distributed on described second surface 402, now, described incident ray often at least penetrates from described substrate 400 respectively through optical filter described in each 500 between adjacent two optical filters 500 in described substrate 400 after two secondary reflections, certainly, between optical filter 500 also can continuously every; Incident ray can be provided by light source, and light source is such as laser instrument.
In practice, need substrate 400, optical filter 500, light source etc. be encapsulated in same cavity, to form the optical module with wavelength-division multiplex Deplexing apparatus.Ginseng Fig. 7, supposes that now cavity extends along the Y direction, considers simplification of flowsheet, is arranged to be parallel to Y-direction in the direction of incident ray.In the present embodiment, incident ray is incident perpendicular to described first surface 401, here the first surface 401 of substrate 400 and second surface 402 can be arranged in parallel, namely now first surface 401 and second surface 402 are all parallel to X-direction, substrate 10 compared to the prior art angle that tilts is put (namely putting at angle with X-direction shape), the substrate 400 of the present embodiment is parallel to X-direction and puts, when identical with the substrate thickness of prior art, substrate 400 length along the Y direction can be shortened, thus reduce the size of whole wavelength-division multiplex Deplexing apparatus.In addition, when the incident ray of the present embodiment is incident to reflecting element 600, light can be made to depart from incident direction, penetrate via each optical filter 500 respectively to realize incident ray, thus realize multiplexing and demultiplexing function.
In the present embodiment, described reflecting element 600 comprises reflecting surface 601, described reflecting surface 601 connects described second surface 402, and described reflecting surface 601 favours described second surface 402, when described in the incident ray directive perpendicular to described first surface 401 during reflecting element 600, described reflecting surface 601 arrives described first surface 401 after described incident ray is departed from incident direction certain angle, described incident ray in described first surface 401 place there is reflection and respectively through optical filter described in each 500 after penetrate from described substrate 400.Here, described reflecting surface 601 is connect the described second surface 402 of described substrate 400 and the plane of described side surface 403, but not as limit, described reflecting surface 601 can be and connects the described first surface 401 of described substrate 400 and the plane of described second surface 402.Concrete, have towards the second angle γ of described first surface 401 between described reflecting surface 601 and described second surface 402, described second angle γ is obtuse angle.When incident ray is incident to reflecting surface 601, incident ray reflects in reflecting surface 601 place, make originally to depart from perpendicular to the direction of propagation of the incident ray of first surface 401, incident ray arrives described first surface 401 after departing from incident direction, so, can penetrate via each optical filter 500 respectively after incident ray enters substrate 400.Here, it should be noted that, the setting of the second angle γ is the direction of propagation in order to change incident ray, make incident ray follow-up to the inner deviation of substrate 400, further, enable incident ray directive first surface 401 and be not orthogonal to described first surface 401, and therefore not limiting the structure of the wavelength-division multiplex Deplexing apparatus of the present embodiment, namely the structure of wavelength-division multiplex Deplexing apparatus can be determined according to actual conditions.In addition, reflecting element 600 also can be catoptron, and catoptron can be fixedly installed in this second surface 402 place.
Second surface 402 place of substrate 400 is evenly distributed with multiple optical filter 500, the light that optical filter 500 and incident ray penetrate through the second surface 402 of substrate 400 is corresponding to be arranged, this optical filter 500 is bandpass filter, can selectably reflect unwanted light wave, make the light wave of needs filter and penetrate optical filter 500 simultaneously.Concrete, this optical filter 500 is set as the light wave that can filter specific wavelength, and the light wave of other wavelength is then reflected back by this optical filter 500.By adjusting the setting position etc. of spacing between the thickness of substrate 400, adjacent optical filter 500 and reflecting element 600, can realize incident ray multiple reflections in substrate 400, and the emergent ray that finally formation many is parallel penetrates from multiple optical filters 500 of correspondence respectively.In the present embodiment, as shown in Figure 7, optical filter 500 is designed to parallel with described second surface 402 away from the one side of second surface 402, now, generally can departs from Y-direction from the light of optical filter 500 outgoing.In other embodiments, as shown in Figure 8, the difference of this embodiment and above-described embodiment is the structure of optical filter, the optical filter 500 ' of this embodiment is inclined-plane 501 ' away from the one side of second surface 402, described inclined-plane 501 ' is not parallel to described second surface 402, so, described optical filter 500 ' can will favour deflection of light that described first surface 401 penetrates to perpendicular to the outgoing of described first surface 401 from described substrate 400, thus can reduce installation and the manufacture difficulty of receiving trap.
The structure of the reflecting element 600 of the present embodiment is not above states bright being limited, and see Fig. 9-Figure 11, is other examples of the reflecting element 600 of the present embodiment.As in Fig. 9, described reflecting element 600a comprises reflecting surface 601a, and described reflecting surface 601a connects first surface 401 and second surface 402 respectively, and here, reflecting element 600a and substrate 400 can be one-body molded, but not as limit.As shown in Figure 10, reflecting element 600a ' and substrate 400 can be splicing construction, now, the side surface 403 that reflecting element 600a ' is arranged at described substrate 400 is other, mutually splices fixing between reflecting element 600a ' and side surface 403 by optical cement or other modes.As shown in figure 11, described reflecting element 600b is arranged at below described second surface 402, reflecting element 600b comprises the reflecting surface 601b receiving described incident ray and the joint face 602b connecting described reflecting surface 601b and described second surface 402, and described reflecting surface 601b and described second surface 402 are positioned at uneven plane.
Here, it should be noted that, according to light path reversible away from, the course of the incident ray of the present embodiment is not limited with above-described embodiment, and such as, incident ray can enter inject substrate 400 from optical filter 500 side.In addition, the wavelength-division multiplex Deplexing apparatus of one-body molded design in above-described embodiment is little relative to conventional wavelength-division multiplex Deplexing apparatus textural difference, is only have a surface tilted relative to second substrate surface; Therefore structure is simple, makes easily, and cost is also just lower.Can conveniently adjust when assembling for the wavelength-division multiplex Deplexing apparatus be stitched together, and the two parts be mutually stitched together can carry out shape or adjusted size as required, dirigibility is higher.
The incident ray of the present embodiment is incident perpendicular to substrate first surface, the light direction of propagation follow-up in substrate is made to depart from incident direction by the effect of reflecting element, the size of substrate in incident ray incident direction can be compressed by this design, thus be conducive to the size reducing whole device.
Be to be understood that, although this instructions is described according to embodiment, but not each embodiment only comprises an independently technical scheme, this narrating mode of instructions is only for clarity sake, those skilled in the art should by instructions integrally, technical scheme in each embodiment also through appropriately combined, can form other embodiments that it will be appreciated by those skilled in the art that.
A series of detailed description listed is above only the illustrating of possible embodiments for the application; they are also not used to the protection domain limiting the application, and the Equivalent embodiments that all the application's of disengaging skill spirit is done or change all should be included within the protection domain of the application.
Claims (11)
1. a wavelength-division multiplex Deplexing apparatus, comprise substrate and multiple optical filter, described substrate comprises relative first surface, second surface and connects the side surface of described first surface and described second surface, described first surface is fully reflecting surface, described multiple optical filter is arranged on described second surface, it is characterized in that:
Described wavelength-division multiplex Deplexing apparatus also comprises the dioptric element be connected with described first surface, when described in the incident ray directive perpendicular to described first surface during dioptric element, described incident ray is arrived described second surface and penetrates from described substrate respectively through after optical filter described in each by described dioptric element after described substrate internal bend certain angle.
2. wavelength-division multiplex Deplexing apparatus according to claim 1, it is characterized in that, have interval between described multiple optical filter, described incident ray is in often at least penetrating from described substrate respectively through optical filter described in each after two secondary reflections between adjacent two optical filters in described substrate.
3. wavelength-division multiplex Deplexing apparatus according to claim 1, it is characterized in that, described dioptric element comprises plane of refraction, described plane of refraction favours described first surface, when described in the incident ray directive perpendicular to described first surface during dioptric element, described incident ray is arrived described second surface and penetrates from described substrate respectively through after optical filter described in each by described plane of refraction after described substrate internal bend certain angle.
4. wavelength-division multiplex Deplexing apparatus according to claim 3, is characterized in that, on the first surface that described dioptric element is arranged at described substrate or by described side surface.
5. wavelength-division multiplex Deplexing apparatus according to claim 4, is characterized in that, described dioptric element and described substrate are formed in one structure.
6. wavelength-division multiplex Deplexing apparatus according to claim 5, is characterized in that, described plane of refraction is connect the described first surface of described substrate and the plane of described second surface.
7. wavelength-division multiplex Deplexing apparatus according to claim 5, is characterized in that, described plane of refraction is connect the described first surface of described substrate and the plane of described side surface.
8. the wavelength-division multiplex Deplexing apparatus according to claim arbitrary in claim 1 to 7, is characterized in that, described optical filter will favour the deflection of light of described first surface injection to perpendicular to described first surface outgoing from described substrate.
9. a wavelength-division multiplex Deplexing apparatus, it is characterized in that comprising: fully reflecting surface, the optical filter be oppositely arranged with fully reflecting surface and dioptric element, when described in the incident ray directive perpendicular to described fully reflecting surface during dioptric element, described dioptric element by described incident ray to arriving described optical filter after bending certain angle between described fully reflecting surface and described optical filter and penetrating from described optical filter respectively through after optical filter described in each.
10. wavelength-division multiplex Deplexing apparatus according to claim 9, is characterized in that, the light penetrated from described optical filter is perpendicular to described fully reflecting surface.
11. 1 kinds of optical modules, is characterized in that, comprise as the wavelength-division multiplex Deplexing apparatus in claim 1-10 as described in any one.
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| CN109932780A (en) * | 2017-12-19 | 2019-06-25 | 日本奥兰若株式会社 | Light wavelength division multiplexing, optical assembly and optical module |
| CN111929768A (en) * | 2019-05-13 | 2020-11-13 | 上海雍邑光电科技有限公司 | Optical wavelength division multiplexing/demultiplexing device capable of being used for vertical coupling |
| CN113448029A (en) * | 2021-07-22 | 2021-09-28 | 上海雍邑光电科技有限公司 | Multi-folding type wave division multiplexing/demultiplexing component Z-Block |
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| CN111929768A (en) * | 2019-05-13 | 2020-11-13 | 上海雍邑光电科技有限公司 | Optical wavelength division multiplexing/demultiplexing device capable of being used for vertical coupling |
| CN113448029A (en) * | 2021-07-22 | 2021-09-28 | 上海雍邑光电科技有限公司 | Multi-folding type wave division multiplexing/demultiplexing component Z-Block |
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