CN105425338A - Wavelength division multiplexing/demultiplexing component - Google Patents
Wavelength division multiplexing/demultiplexing component Download PDFInfo
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- CN105425338A CN105425338A CN201510760560.1A CN201510760560A CN105425338A CN 105425338 A CN105425338 A CN 105425338A CN 201510760560 A CN201510760560 A CN 201510760560A CN 105425338 A CN105425338 A CN 105425338A
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- prism
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- optical filter
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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
- G02B6/34—Optical coupling means utilising prism or grating
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04J—MULTIPLEX COMMUNICATION
- H04J14/00—Optical multiplex systems
- H04J14/02—Wavelength-division multiplex systems
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- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
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Abstract
The present invention is applied to the technical field of optical communication and provideds a wavelength division multiplexing/demultiplexing component which comprises a prism 201, a washer 202, a turning block 203, and one or more filtering sheets, wherein the angle between two side faces of the prism 201 is 90 degrees, and the angles between the two side faces and a bottom surface are 45 degrees. Specifically, one surface of the washer 202 is fixed to the bottom surface of the prism 201, the other surface of the washer 202 is used for fixing the turning block 203, the one or more filtering sheets are fixed, the washer 202 is provided with light through holes corresponding to the fixed filtering sheets and the turning block 203, and two side faces of the prism 201 are plated by total reflection surfaces. The embodiment of the invention provides the wavelength division multiplexing/demultiplexing component, a filtering sheet group is formed by using the prism, through the turning of the prism in a three-dimensional space, the miniaturization of the wavelength division multiplexing/demultiplexing component is realized, and the wavelength division multiplexing/demultiplexing component has the advantages of low cost, high reliability, mass production, and easy interchangeability.
Description
Technical field
The invention belongs to technical field of photo communication, particularly relate to a kind of wavelength-division multiplex/demultiplexing assembly.
Background technology
Adopt the application of the optical modules such as QSFP+LR4, QSFP+IR4, QSFP28 of multichannel light signal parallel transmitting-receiving in the data in the heart and communication network more and more extensive now.Optical module functionally has the function of transmitting-receiving unification, inside comprises the laser device of transmitting and the detector device of reception, laser device is with wavelength-division multiplex functional part, detector is with the multiplexing functional part of Wave Decomposition, as patent CN201420188172, CN201510017202 etc. adopt multiple independently optical device to mate external optical wavelength-division multiplex/demultiplexing assembly, this type of optical device volume is large, and external optical wavelength-division multiplex/demultiplexing assembly adopts short fiber to connect, and processing cost is high, and for example CN201410528597,201310424754.5, US20120189306 etc. adopts the mode of polarized composite wave, inner member is many and be the element be separated, and when assembling, tolerance is wayward, and most scheme exists 3dB Insertion Loss, and for example patent CN201210184192, CN201380010314, US20120189314 adopts optical filter box, its structure is simple, but also there is shortcoming, as shown in Figure 1, for CWDM, the optical filter of DWDM application, because the coating process of bandpass filter limits, its operating angle is little, usually 15 degree are less than, conventional angle 8 degree, 12 degree, 13.5 degree, the lens combination of placing due to rear end again or the size of array lens larger, particularly laser device, the size of its coupled lens is greater than 0.7mm usually, reserved spacing is generally 1mm, cause the size of optical filter box larger, again due to functional parts such as internal control detector chips in laser device, cause the length of device longer, the layout of soft ribbons and module level pcb board causes adverse influence.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of wavelength-division multiplex/demultiplexing assembly, comparatively large with the size solving optical filter box in prior art, causes that the length of device is longer, the layout of soft ribbons and module level pcb board causes disadvantageous problem.
The embodiment of the present invention is achieved in that
First aspect, embodiments provide a kind of wavelength-division multiplex/demultiplexing assembly, described assembly comprises prism 201, pad 202, turnover block 203, a slice or multiple optical filters, wherein, between the two sides of described prism 201, angle is 90 degree, between two sides and bottom surface, angle is 45 degree, concrete:
The one side of described pad 202 is fixed on the bottom surface of described prism 201, and the another side of described pad 202 is used for fixing described turnover block 203, and fixes described a slice or multiple optical filters;
Wherein, on described pad 202, the corresponding each optical filter that will fix and turnover block 203, be provided with light hole;
Wherein, the two sides of described prism 201 are coated with fully reflecting surface.
Preferably, by adhesive curing between described prism 201 bottom surface and described pad 202, concrete:
The light hole place of the corresponding pad 202 in described prism 201 bottom surface is provided with the transparent surface of band bulge-structure.
Preferably, for the light hole on described pad 202, it is provided with an anti-overflow hurdle of circle on an edge of fixing optical filter.
Preferably, described light hole is distributed in the both sides of described pad 202, corresponding with the two sides of described prism 201 respectively; Wherein, the circle center line connecting of the light hole of each side is parallel with the base of prism 201, the light hole layout in an interleaved manner of both sides.
Second aspect, the embodiment of the present invention additionally provides a kind of wavelength-division multiplex/demultiplexing assembly, described assembly comprises prism 601, pad 602, reflector plate 603, turnover block 606, a slice or multiple optical filters, wherein, angle 90 degree between the two sides of described prism 601, between two sides and bottom surface, angle is 45 degree, concrete:
The one side of described pad 602 is fixed on the bottom surface of described prism 601, and the another side of described pad 602 is used for fixing described reflector plate 603 and fixes described a slice or multiple optical filters;
Wherein, on described pad 602, corresponding fixing each optical filter and reflector plate 603 are provided with light hole;
Wherein, the two sides of described prism 601 are coated with fully reflecting surface;
Wherein, described reflector plate 603 and described a slice or multiple optical filters are separately fixed at the both sides of described pad 602, and corresponding with the two sides of described prism 601 respectively;
Wherein, described turnover block 606 is fixed on the side of described prism 601.
Preferably, described turnover block 606 is fixed on the first side of described prism 601, and described first side is mapped to the same side in described prism 601 bottom surface, region that the region of prism 601 bottom surface and described reflector plate 603 are mapped to prism 601 bottom surface.
Preferably, described turnover block 606 is fixed on the second side of described prism 601, and described second side is mapped to the same side in described prism 601 bottom surface, region that the region of prism 601 bottom surface and described each optical filter are mapped to prism 601 bottom surface.
Preferably, described light hole is distributed in the both sides of described pad 602, corresponding with the two sides of described prism 601 respectively; Wherein, the circle center line connecting of the light hole of each side is parallel with the base of prism 601, the light hole layout in an interleaved manner of both sides.
The third aspect, the embodiment of the present invention additionally provides a kind of detector device, described detector device comprises contact pin collimating apparatus 1001, shell 1002, soft ribbons 1003 or electrical interface 1009, detector assembly 1004, Wave Decomposition multiplexing assembly 1005, catoptron 1006 and array lens 1007, concrete:
Contact pin collimating apparatus 1001 and shell 1002 are welded and fixed by laser-beam welding machine, and soft ribbons 1003 or electrical interface 1009 are partially submerged in shell 1002;
Detector assembly 1004 is mounted in shell 1002;
Array lens 1007 is provided with directly over detector chip group, lens center and chip photosurface center superposition in array lens 1007, catoptron 1006 is pasted with on array lens 1007, Wave Decomposition multiplexing assembly 1005 is set between catoptron 1006 and contact pin collimating apparatus 1001, the defeated light inlet of Wave Decomposition multiplexing assembly 1005 is towards contact pin collimating apparatus 1001, optical filter is towards catoptron 1006, and the height of optical filter is identical with the height of catoptron 1006;
Wherein, Wave Decomposition multiplexing assembly 1005 is the Wave Decomposition multiplexing assembly described in first aspect and preferred version thereof; Or Wave Decomposition multiplexing assembly 1005 is the Wave Decomposition multiplexing assembly described in second aspect and preferred version thereof.
Fourth aspect, the embodiment of the present invention additionally provides a kind of Laser Devices, described detector device comprises contact pin collimating apparatus 1101, shell 1102, electrical interface 1103, laser assembly 1104, coupled lens group 1105, Interleave muiltiplexing component element 1106, prism 1107 and substrate 1108, concrete:
Described contact pin collimating apparatus 1101 is welded and fixed by laser-beam welding machine with shell 1102; Electrical interface 1103 is made into one with shell 1102 by sealing technology;
Laser assembly 1104 to be mounted in shell 1102 and to be connected with electrical interface 1103;
The output port side of chip of laser group 1104 is provided with coupled lens group 1105; Interleave muiltiplexing component element 1106 is pasted with in the output port side of coupled lens group 1105, the defeated light-emitting window of Interleave muiltiplexing component element 1106 is towards contact pin collimating apparatus 1101, optical filter is towards coupled lens group 1105, and the height of optical filter is identical with the height of coupled lens group 1105;
Wherein, Interleave muiltiplexing component element 1106 is the Wave Decomposition multiplexing assembly described in first aspect and preferred version thereof; Or Interleave muiltiplexing component element 1106 is the Interleave muiltiplexing component element described in second aspect and preferred version thereof.
The beneficial effect of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides comprises: wavelength-division multiplex/demultiplexing optical assembly that the embodiment of the present invention proposes, adopt prism arrangement filter set, by prism in three-dimensional turnover, the miniaturization of wavelength-division multiplex/demultiplexing optical assembly can be realized, have low cost, high reliability, can mass, easily interchangeability.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of existing wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Fig. 2 is the main perspective degree structural representation of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Fig. 3 be a kind of wavelength-division multiplex/demultiplexing assembly of providing of the embodiment of the present invention face angled arrangement schematic diagram;
Fig. 4 is the depression angle structural representation of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Fig. 5 is the main perspective degree structural representation that a kind of prism of providing of the embodiment of the present invention and cushion block form structure;
Fig. 6 is the depression angle structural representation of a kind of pad that the embodiment of the present invention provides;
Fig. 7 be a kind of pad of providing of the embodiment of the present invention face angled arrangement schematic diagram;
Fig. 8 is the downward projection schematic diagram of the paths of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Fig. 9 is the side elevation schematic diagram of the paths of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 10 is a kind of wavelength-division multiplex/demultiplex element of providing of the embodiment of the present invention and collimating element assembly wave band multiplex/demultiplex device schematic diagram when using;
Figure 11 is the main perspective degree structural representation of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 12 is the main perspective degree structural representation of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 13 is the main perspective degree structural representation of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 14 is the main perspective degree structural representation that a kind of prism of providing of the embodiment of the present invention and cushion block form structure;
Figure 15 be a kind of wavelength-division multiplex/demultiplexing assembly of providing of the embodiment of the present invention face angled arrangement schematic diagram;
Figure 16 is the depression angle structural representation of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 17 is the side-looking angled arrangement schematic diagram of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 18 is the downward projection schematic diagram of the paths of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 19 is the side elevation schematic diagram of the paths of a kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides;
Figure 20 is the main perspective degree structural representation of a kind of Wave decomposing multiplexer part that the embodiment of the present invention provides;
Figure 21 is the main perspective degree structural representation of a kind of Wave decomposing multiplexer part that the embodiment of the present invention provides;
Figure 22 is the main perspective degree structural representation of a kind of wavelength division multiplex device that the embodiment of the present invention provides;
Figure 23 is the depression angle structural representation of a kind of wavelength division multiplex device that the embodiment of the present invention provides.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
In order to technical solutions according to the invention are described, be described below by specific embodiment.
Embodiment one
A kind of wavelength-division multiplex/demultiplexing assembly that the embodiment of the present invention provides, described assembly comprises prism 201, pad 202, turnover block 203, a slice or multiple optical filters, wherein, between the two sides of described prism 201, angle is 90 degree, between two sides and bottom surface, angle is 45 degree, from Fig. 2-5, concrete:
The one side of described pad 202 is fixed on the bottom surface of described prism 201, and the another side of described pad 202 is used for fixing described turnover block 203, and fixes described a slice or multiple optical filters; Wherein, on described pad 202, the corresponding each optical filter that will fix and turnover block 203, be provided with light hole; Wherein, the two sides of described prism 201 are coated with fully reflecting surface.
Wavelength-division multiplex/demultiplexing optical assembly that the embodiment of the present invention proposes, adopt prism arrangement filter set, by prism in three-dimensional turnover, the miniaturization of wavelength-division multiplex/demultiplexing optical assembly can be realized, have low cost, high reliability, can mass, easily interchangeability.
In conjunction with the embodiment of the present invention, there is a kind of preferred scheme, wherein, by adhesive curing between described prism 201 bottom surface and described pad 202, concrete:
The light hole place of the corresponding pad 202 in described prism 201 bottom surface is provided with the transparent surface of band bulge-structure.
Wherein, the diameter of the transparent surface of described band bulge-structure ensures that described bulge-structure just in time embeds in corresponding light hole.
Thus, ensure that when described prism 201 bottom surface and pad 202 are fixed in gluing, glue can be avoided to overflow, have influence on the transparent surface in described prism, wherein, described transparent surface and light hole one_to_one corresponding.
In conjunction with the embodiment of the present invention, there is a kind of preferred scheme, wherein, for the light hole on described pad 202, it is provided with an anti-overflow hurdle of circle on an edge of fixing optical filter, as shown in Figure 6 and Figure 7.
In conjunction with the embodiment of the present invention, there is a kind of preferred scheme, wherein, described light hole is distributed in the both sides of described pad 202, corresponding with the two sides of described prism 201 respectively; Wherein, the circle center line connecting of the light hole of each side is parallel with the base of prism 201, the light hole layout in an interleaved manner of both sides.Such as, as shown in Figure 4, the display that pad 202 forms according to optical filter is divided into upper and lower both sides, wherein, the light hole 2051 and 2053 of upside and light hole 2052,2054 and 2055 layout in an interleaved manner of downside.
In various embodiments of the present invention, the filter set by being made up of four optical filters is set forth the realization how realizing a kind of wavelength-division multiplex/demultiplexing assembly proposed by the invention, corresponding also will by four wavelength X
1, λ
2, λ
3and λ
4set forth light wave multiplex/demultiplex process; but; invention which is intended to be protected can relate to n filter plate and a corresponding n wavelength (n is natural number); those skilled in the art according to the embodiment of described four filter plates through reasonably deducing the implementation obtaining n filter plate, can not repeat at this one by one.
Embodiment two
The present embodiment, on scheme basis disclosed in embodiment one, utilizes the wavelength-division multiplex/demultiplexing assembly comprising 5 tablet filters with regard to how realizing part ins and outs in embodiment one to be set forth by the present embodiment.
As shown in Figure 2-5, present embodiments provide a kind of wavelength-division multiplex/demultiplexing assembly of passive type, comprise right-angle prism 201, pad 202, turnover block 203, optical filter 2041-2044.Optical filter box and incident light mouth are arranged on the same side.Right-angle prism 201, as matrix, has three workplaces: two orthogonal reflectings surface (being also referred to as the side of prism 201 in embodiment one), incidence/exit facet (being also referred to as the bottom surface of prism 201 in embodiment one) with two reflecting surface angles at 45 °; Pad 202 is mounted on the incidence/exit facet of prism 201, turnover block 203, optical filter 2041-2044 is placed successively on another surface of pad 202, the light hole 2051-2055 of number of matches is provided with in pad 202, wherein, as shown in Figure 2, first row is two light holes, second row has three light holes, as shown in Figure 3, Figure 4, wherein, the type of light hole includes but not limited to circular hole and square hole.The aligned in position of the position of light hole and optical filter 2041-2044 and block 203 of transferring, as shown in Figure 3; Turnover block 203 is angle of wedge block, and the size of its angle of wedge can calculate according to the operating angle of optical filter 2041-2044, installing space and glass refraction; Optical filter 2041-2044 is bandpass filter, and can realize a certain wavestrip transmission and other wavestrips reflect, the position of optical filter 2041-2044 determines according to the installation site of the defeated light inlet of periphery, defeated light-emitting window, is generally equidistant arrangement.
The material of cushion block 202 preferably adopts the matched coefficients of thermal expansion with the substrate of the base material of the base material of right-angle prism 201, optical filter 2041-2044, block 203 of transferring, and as glass, can cut down.The sectional dimension of cushion block 202 is identical with the sectional dimension of right-angle prism 201, is convenient to install, and both pass through adhesive curing.The orientation in the hole in cushion block 202 is consistent with the reflecting surface of right-angle prism 201.Cushion block 202, except the hole arranged, can make extinction, process of being in the light, and is conducive to the suppression of crosstalk, while each hole as the effect of the restricted light path of diaphragm, be convenient to be coupled and aligned.Cushion block 202 is when pasting with right-angle prism 201, optical filter 2041-2044 and block 203 of transferring, and control rubber quality stops effective light hole to avoid glue.
Embodiment three
Embodiment one and embodiment two from composition structure, and set forth how wavelength-division multiplex/demultiplexing assembly on selecting materials, how following the present embodiment is by by utilizing the wavelength-division multiplex described in embodiment one or embodiment two/demultiplexing assembly to complete and include λ
1, λ
2, λ
3and λ
4the demultiplexing process checking light signal of four kinds of wavelength, sets forth it and realizes principle.
The principle of wavelength-division multiplex/demultiplexing is the wavelength selectivity utilizing bandpass filter, the band of light needed is reflected through, all the other band of light.Application requirements optical filter 2041-2044 for four multi-channel operation has different passbands, if optical filter 2041 is through λ
1, optical filter 2042 is through λ
2, optical filter 2043 is through λ
3, optical filter 2044 is through λ
4four optical filters have identical incident angle and reflection angle, match, and two right angle reflectings surface of right-angle prism 201 are made into right angle, select suitable glass baseplate and/or plating total reflection film on the reflecting surface, to ensure that four wavelength are totally reflected at reflecting surface place, right angle.
In conjunction with the wavelength-division multiplex described in the embodiment of the present invention two/demultiplexing assembly, its light wave demultiplexing index path as shown in Figure 8,9, the light signal λ of four incident wavelength
1-λ
4first incident from the inclined-plane of turnover block 203, refraction afterwards enters turnover block 203, outgoing afterwards, by entering right-angle prism 201 after the corresponding light hole of cushion block 202, arrive first reflecting surface 401 afterwards, be reflected to second reflecting surface 402, transmit right-angle prism 201 afterwards, again through the corresponding light hole of cushion block 202, now λ
1through optical filter 2041, and λ
2-λ
4then reflect.λ
2-λ
4right-angle prism 201 is carried out through the light hole of cushion block 202, light path afterwards and λ after reflection
1circulation way identical, no longer repeat, successively, λ
2through optical filter 2042, λ
3through optical filter 2043, λ
4through optical filter 2044.Because in wavelength-division multiplex/demultiplexing assembly, light path is longer, the light beam of usual four wavelength is quasi-parallel light or directional light.
Embodiment four
The embodiment of the present invention additionally provides a kind of using method of the wavelength-division multiplex/demultiplexing assembly proposed based on embodiment one or embodiment two, by wavelength-division multiplex/demultiplexing assembly and collimating apparatus with the use of, to form Wavelength division multiplexer/demultiplexer, as shown in Figure 10, comprise wavelength-division multiplex/demultiplex element, input collimating apparatus 501, output collimator 5021-5024.Input collimating apparatus 501 is corresponding with turnover block 203, output collimator 5021 is corresponding with optical filter 2041, output collimator 5022 is corresponding with optical filter 2042, output collimator 5023 is corresponding with optical filter 2043, output collimator 5023 is corresponding with optical filter 2043, therefore from four wavelength X of input collimating apparatus 501 incidence
1-λ
4, export λ by output collimator 5021 successively
1, output collimator 5022 exports λ
2, output collimator 5023 exports λ
3, output collimator 5024 exports λ
4.
Embodiment five
The embodiment of the present invention additionally provides a kind of wavelength-division multiplex/demultiplexing assembly, with embodiment one unlike, in embodiment one, the incident side of wavelength-division multiplex/demultiplex assembly and light emission side are in the same side (i.e. bottom surface) of prism 201, and the incident side of the wavelength-division multiplex that the present embodiment proposes/demultiplexing assembly is on the side of prism 601, light emission side is then in the bottom surface of prism 601.Described assembly comprises prism 601, pad 602, reflector plate 603, turnover block 606, a slice or multiple optical filters in the present embodiment, wherein, angle 90 degree between the two sides of described prism 601, between two sides and bottom surface, angle is 45 degree, as shown in figures 11-17, concrete:
The one side of described pad 602 is fixed on the bottom surface of described prism 601, and the another side of described pad 602 is used for fixing described reflector plate 603 and fixes described a slice or multiple optical filters;
Wherein, on described pad 602, corresponding fixing each optical filter and reflector plate 603 are provided with light hole;
Wherein, the two sides of described prism 601 are coated with fully reflecting surface;
Wherein, described reflector plate 603 and described a slice or multiple optical filters are separately fixed at the both sides of described pad 602, and corresponding with the two sides of described prism 601 respectively;
Wherein, described turnover block 606 is fixed on the side of described prism 601.
Wavelength-division multiplex/demultiplexing optical assembly that the embodiment of the present invention proposes, adopt prism arrangement filter set, by prism in three-dimensional turnover, the miniaturization of wavelength-division multiplex/demultiplexing optical assembly can be realized, have low cost, high reliability, can mass, easily interchangeability.
In conjunction with the embodiment of the present invention, there is a kind of preferred scheme, wherein, described turnover block 606 is fixed on the first side of described prism 601, described first side is mapped to the region of prism 601 bottom surface and described reflector plate 603 is mapped to the region of prism 601 bottom surface in the same side of described prism 601 bottom surface, as shown in figure 11.
In conjunction with the embodiment of the present invention, there is a kind of preferred scheme, wherein, described turnover block 606 is fixed on the second side of described prism 601, described second side is mapped to the region of prism 601 bottom surface and described each optical filter is mapped to the region of prism 601 bottom surface in the same side of described prism 601 bottom surface, as shown in figure 12.
In conjunction with the embodiment of the present invention, there is a kind of preferred scheme, wherein, described light hole is distributed in the both sides of described pad 602, corresponding with the two sides of described prism 601 respectively; Wherein, the circle center line connecting of the light hole of each side is parallel with the base of prism 601, the light hole layout in an interleaved manner of both sides, as shown in figure 15.
Wavelength-division multiplex/demultiplexing optical assembly that the embodiment of the present invention proposes, adopt prism arrangement filter set, by prism in three-dimensional turnover, the miniaturization of wavelength-division multiplex/demultiplexing optical assembly can be realized, have low cost, high reliability, can mass, easily interchangeability.
Embodiment six
The present embodiment, on scheme basis disclosed in embodiment five, utilizes the wavelength-division multiplex/demultiplexing assembly comprising 5 tablet filters with regard to how realizing part ins and outs in embodiment five to be set forth by the present embodiment.
As shown in figures 11-17, present embodiments provide a kind of wavelength-division multiplex/demultiplexing assembly of active type, be characterized in that defeated light inlet and defeated light-emitting window are positioned at the both sides of wavelength-division multiplex/demultiplexing assembly, and defeated light-emitting window is listed as a row.For the wavelength-division multiplex of four channels/demultiplexing assembly.
As shown in figure 11, wavelength-division multiplex/demultiplexing assembly comprises: right-angle prism 601, cushion block 602, reflector plate 603, bandpass filter 6041-6044, right angle block 605 and turnover block 606.Right-angle prism 601, as matrix, has three workplaces: two orthogonal reflectings surface 607 and 608, incidence/exit facet with two reflecting surface angles at 45 °; Pad 602 is mounted on the incidence/exit facet of right-angle prism 601, reflector plate 603, optical filter 6041-6044 is placed successively on another surface of pad 602, according to the quantity of working channel, two row's light holes of number of matches are provided with in pad 602, first row has four light holes, second row has three light holes, as shown in Figure 14 and Figure 15, the type of light hole includes but not limited to: circular hole and square hole, first round is corresponding with the reflecting surface 607 of right-angle prism 601, and the 3rd round is corresponding with the reflecting surface 608 of right-angle prism 601; The aligned in position of the position of light hole and optical filter and reflector plate, as shown in figure 15, wherein optical filter 6041-6044 is positioned at first row, and corresponding with four light holes respectively, reflector plate is positioned at second row, covers three light holes; Right angle block 605 is the girdle prisms such as right angle, and the reflecting surface 607 of right-angle prism 601 is close on inclined-plane, and the right-angle surface be oppositely arranged with optical filter 6041 is placed with block 606 of transferring; Turnover block 606 is angle of wedge block, and the size of its angle of wedge can calculate according to the operating angle of optical filter 6041-6044, installing space and glass refraction; Optical filter 6041-6044 is bandpass filter, and can realize a certain wavestrip transmission and other wavestrips reflect, the position of optical filter 6041-6044 determines according to the installation site of the defeated light-emitting window of periphery, is generally equidistant arrangement; Right angle block 605 and turnover block 606 are at right-angle prism 601.
As shown in figure 12, with the wavelength-division multiplex shown in Figure 11/demultiplexing component class seemingly, difference is the position turned upside down of reflector plate 603 and optical filter 6041-6044, the inversion that the first row light hole of cushion block 602 is corresponding to the position of second row light hole.Wavelength-division multiplex shown in this structure and Figure 11/demultiplexing modular construction, belongs to left hand and right hand structure, is respectively used to the layout when dislocation of device left-hand misplaces with dextrad.
As shown in figure 13, change the right angle block 605 in Figure 12 into right angle block 609, and turnover block 606 and right angle block 609 are mounted on the top of right-angle prism 601.Wavelength-division multiplex shown in this structure and Figure 12/demultiplexing modular construction, difference is defeated light inlet position, is applied to the situation of the upper and lower dislocation of defeated light inlet in device; Wavelength-division multiplex shown in this structure and Figure 11/demultiplexing modular construction, difference is that the position of reflected light and optical filter is inverted, and is applied to the situation of chip of laser or the upper and lower dislocation of detector chip in device.Three kinds of structures are similar, can suitably revise according to different application.
The material of cushion block 602 preferably adopts the matched coefficients of thermal expansion with the base material of the base material of right-angle prism 601, optical filter 6041-6044, the substrate of reflector plate 603, as glass, can cut down.The sectional dimension of cushion block 602 is identical with the sectional dimension of right-angle prism 601, is convenient to install, and both pass through adhesive curing.The orientation in the hole in cushion block 602 is consistent with the reflecting surface of right-angle prism 601.Cushion block 602, except the light hole arranged, can make extinction, process of being in the light, and is conducive to the suppression of crosstalk, while each hole as the effect of the restricted light path of diaphragm, be convenient to be coupled and aligned.Cushion block 602 is when pasting with right-angle prism 601, optical filter 6041-6044 and reflector plate 603, and control rubber quality stops effective clear aperture to avoid glue.
Embodiment seven
Embodiment five and embodiment six from composition structure, and set forth how wavelength-division multiplex/demultiplexing assembly on selecting materials, how following the present embodiment is by by utilizing the wavelength-division multiplex described in embodiment five and embodiment six/demultiplexing assembly to complete and include λ
1, λ
2, λ
3and λ
4the demultiplexing process checking light signal of four kinds of wavelength, sets forth it and realizes principle.
The principle of wavelength-division multiplex/demultiplexing is the wavelength selectivity utilizing bandpass filter, the wavestrip needed is reflected through, all the other wavestrips.Application requirements optical filter 6041-6044 for four multi-channel operation has different passbands, if optical filter 6041 is through λ
1, optical filter 6042 is through λ
2, optical filter 6043 is through λ
3, 6044 through λ
4, 603 reflectors reflects λ
1-λ
4four optical filters have identical incident angle and reflection angle, match, and two right angle reflectings surface of right-angle prism 601 are made into right angle, select suitable glass baseplate or plating total reflection film on the reflecting surface, to ensure that four wavelength are totally reflected at reflecting surface place, right angle.
As shown in Figures 18 and 19, the light signal λ of four incident wavelength
1-λ
4first incident from the inclined-plane of turnover block 606, refraction afterwards enters turnover block, direct through right angle block 605 outgoing afterwards, by arriving optical filter 6041 after the corresponding light hole of cushion block 602, now λ
1through optical filter 6041, and λ
2-λ
4then reflect.λ
2-λ
4by cushion block 602 after reflection, enter right-angle prism 601 afterwards, arrive first reflecting surface 607 afterwards, be reflected to second reflecting surface 608, transmit right-angle prism 601 afterwards, then through after the corresponding light hole of cushion block 602, arrive optical filter 6042, now λ
2through optical filter 6042, and λ
3, λ
4then reflect, light path afterwards and λ
2circulation way identical, no longer repeat, successively, λ
3through optical filter 6043, λ
4through optical filter 6044.Because in wavelength-division multiplex/demultiplexing assembly, light path is longer, the light beam of usual four wavelength is quasi-parallel light or directional light.
Embodiment eight
In conjunction with the embodiments five and wavelength-division multiplex/demultiplexing optical assembly architecture basics disclosed in embodiment six on, the embodiment of the present invention additionally provides a kind of detector device, described detector device comprises contact pin collimating apparatus 1001, shell 1002, soft ribbons 1003 or electrical interface 1009, detector assembly 1004, Wave Decomposition multiplexing assembly 1005, catoptron 1006 and array lens 1007, as shown in Figure 20,21, concrete:
Contact pin collimating apparatus 1001 and shell 1002 are welded and fixed by laser-beam welding machine, and soft ribbons 1003 or electrical interface 1009 are partially submerged in shell 1002.
Detector assembly 1004 is mounted in shell 1002; Wherein, detector assembly 1004 comprises substrate, detector chip group, TIA chip and circuit component.
Array lens 1007 is provided with directly over detector chip group, lens center and chip photosurface center superposition in array lens 1007, catoptron 1006 is pasted with on array lens 1007, Wave Decomposition multiplexing assembly 1005 is set between catoptron 1006 and contact pin collimating apparatus 1001, the defeated light inlet of Wave Decomposition multiplexing assembly 1005 is towards contact pin collimating apparatus 1001, optical filter is towards catoptron 1006, and the height of optical filter is identical with the height of catoptron 1006.
Embodiment nine
In conjunction with the embodiments five and wavelength-division multiplex/demultiplexing optical assembly architecture basics disclosed in embodiment six on, the embodiment of the present invention additionally provides a kind of Laser Devices, described detector device comprises contact pin collimating apparatus 1101, shell 1102, electrical interface 1103, laser assembly 1104, coupled lens group 1105, Interleave muiltiplexing component element 1106, prism 1107 and substrate 1108, as shown in Figure 22,23, concrete:
Described contact pin collimating apparatus 1101 is welded and fixed by laser-beam welding machine with shell 1102; Electrical interface 1103 is made into one with shell 1102 by sealing technology.
Laser assembly 1104 to be mounted in shell 1102 and to be connected with electrical interface 1103; Wherein, in specific implementation, laser assembly 1104 comprises ceramic wafer, chip of laser group, MPD chipset and circuit component.
The output port side of chip of laser group 1104 is provided with coupled lens group 1105; Wherein, in specific implementation, in shown coupled lens group 1105, lens center axle overlaps with chip of laser exiting surface central shaft, and the exiting surface of chip of laser is positioned on the focal plane of coupled lens.
Interleave muiltiplexing component element 1106 is pasted with in the output port side of coupled lens group 1105, the defeated light-emitting window of Interleave muiltiplexing component element 1106 is towards contact pin collimating apparatus 1101, optical filter is towards coupled lens group 1105, and the height of optical filter is identical with the height of coupled lens group 1105; Wherein, in specific implementation, prism 1107 is set between Interleave muiltiplexing component element 1106 and shell 1102, for by the light beam of Interleave muiltiplexing component element 1106 outgoing from the optical window of shell 1102 through; In contact pin collimating apparatus 1101, can isolator be set.
Wherein, in specific implementation, in shown coupled lens group 1105, lens center axle overlaps with chip of laser exiting surface central shaft, and the exiting surface of chip of laser is positioned on the focal plane of coupled lens.
Those of ordinary skill in the art it is also understood that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, comprises ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any amendments done within the spirit and principles in the present invention, equivalent replacement and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. wavelength-division multiplex/demultiplexing assembly, it is characterized in that, described assembly comprises prism (201), pad (202), turnover block (203), a slice or multiple optical filters, wherein, between the two sides of described prism (201), angle is 90 degree, between two sides and bottom surface, angle is 45 degree, concrete:
The one side of described pad (202) is fixed on the bottom surface of described prism (201), and the another side of described pad (202) is used for fixing described turnover block (203), and fixes described a slice or multiple optical filters;
Wherein, the upper corresponding each optical filter that will fix of described pad (202) and turnover block (203), be provided with light hole;
Wherein, the two sides of described prism (201) are coated with fully reflecting surface.
2. assembly according to claim 1, is characterized in that, by adhesive curing between described prism (201) bottom surface and described pad (202), concrete:
The light hole place of the corresponding pad (202) in described prism (201) bottom surface is provided with the transparent surface of band bulge-structure.
3. assembly according to claim 1 and 2, is characterized in that, for the light hole on described pad (202), it is provided with an anti-overflow hurdle of circle on an edge of fixing optical filter.
4. assembly according to claim 1 and 2, is characterized in that, described light hole is distributed in the both sides of described pad (202), corresponding with the two sides of described prism (201) respectively; Wherein, the circle center line connecting of the light hole of each side is parallel with the base of prism (201), the light hole layout in an interleaved manner of both sides.
5. wavelength-division multiplex/demultiplexing assembly, it is characterized in that, described assembly comprises prism (601), pad (602), reflector plate (603), turnover block (606), a slice or multiple optical filters, wherein, angle 90 degree between the two sides of described prism (601), between two sides and bottom surface, angle is 45 degree, concrete:
The one side of described pad (602) is fixed on the bottom surface of described prism (601), and the another side of described pad (602) is used for fixing described reflector plate (603) and fixes described a slice or multiple optical filters;
Wherein, the upper corresponding fixing each optical filter of described pad (602) and reflector plate (603) are provided with light hole;
Wherein, the two sides of described prism (601) are coated with fully reflecting surface;
Wherein, described reflector plate (603) and described a slice or multiple optical filters are separately fixed at the both sides of described pad (602), and corresponding with the two sides of described prism (601) respectively;
Wherein, described turnover block (606) is fixed on the side of described prism (601).
6. assembly according to claim 5, it is characterized in that, described turnover block (606) is fixed on the first side of described prism (601), and described first side is mapped to the same side in described prism (601) bottom surface, region that the region of prism (601) bottom surface and described reflector plate (603) are mapped to prism (601) bottom surface.
7. assembly according to claim 5, it is characterized in that, described turnover block (606) is fixed on the second side of described prism (601), and described second side is mapped to the same side in described prism (601) bottom surface, region that the region of prism (601) bottom surface and described each optical filter are mapped to prism (601) bottom surface.
8., according to the arbitrary described assembly of claim 5-7, it is characterized in that, described light hole is distributed in the both sides of described pad (602), corresponding with the two sides of described prism (601) respectively; Wherein, the circle center line connecting of the light hole of each side is parallel with the base of prism (601), the light hole layout in an interleaved manner of both sides.
9. a detector device, it is characterized in that, described detector device comprises contact pin collimating apparatus (1001), shell (1002), soft ribbons (1003) or electrical interface (1009), detector assembly (1004), Wave Decomposition multiplexing assembly (1005), 45 ° of catoptrons (1006) and array lens (1007), concrete:
Contact pin collimating apparatus (1001) and shell (1002) are welded and fixed by laser-beam welding machine, and soft ribbons (1003) or electrical interface (1009) are partially submerged in shell (1002);
Detector assembly (1004) is mounted in shell (1002);
Array lens (1007) is provided with directly over detector chip group, lens center and chip photosurface center superposition in array lens (1007), catoptron (1006) is pasted with on array lens (1007), Wave Decomposition multiplexing assembly (1005) is set between catoptron (1006) and contact pin collimating apparatus (1001), the defeated light inlet of Wave Decomposition multiplexing assembly (1005) is towards contact pin collimating apparatus (1001), optical filter is towards catoptron (1006), the height of optical filter is identical with the height of catoptron (1006),
Wherein, Wave Decomposition multiplexing assembly (1005) is the arbitrary described Wave Decomposition multiplexing assembly of claim 1-4; Or Wave Decomposition multiplexing assembly (1005) is the arbitrary described Wave Decomposition multiplexing assembly of claim 5-8.
10. Laser Devices, it is characterized in that, described detector device comprises contact pin collimating apparatus (1101), shell (1102), electrical interface (1103), laser assembly (1104), coupled lens group (1105), Interleave muiltiplexing component element (1106), prism (1107) and substrate (1108), concrete:
Described contact pin collimating apparatus (1101) and shell (1102) are welded and fixed by laser-beam welding machine; Electrical interface (1103) is made into one with shell (1102) by sealing technology;
Laser assembly (1104) to be mounted in shell (1102) and to be connected with electrical interface (1103);
The output port side of chip of laser group (1104) is provided with coupled lens group (1105); Interleave muiltiplexing component element (1106) is pasted with in the output port side of coupled lens group (1105), the defeated light-emitting window of Interleave muiltiplexing component element (1106) is towards contact pin collimating apparatus (1101), optical filter is towards coupled lens group (1105), and the height of optical filter is identical with the height of coupled lens group (1105);
Wherein, Interleave muiltiplexing component element (1106) is the arbitrary described Wave Decomposition multiplexing assembly of claim 1-4; Or Interleave muiltiplexing component element (1106) is the arbitrary described Interleave muiltiplexing component element of claim 5-8.
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