CN108490554A - Light-receiving secondary module and optical module - Google Patents
Light-receiving secondary module and optical module Download PDFInfo
- Publication number
- CN108490554A CN108490554A CN201810288561.4A CN201810288561A CN108490554A CN 108490554 A CN108490554 A CN 108490554A CN 201810288561 A CN201810288561 A CN 201810288561A CN 108490554 A CN108490554 A CN 108490554A
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- China
- Prior art keywords
- light
- receiving secondary
- secondary module
- holder
- lens
- Prior art date
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Classifications
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4287—Optical modules with tapping or launching means through the surface of the waveguide
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4206—Optical features
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4204—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
- G02B6/4215—Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms the intermediate optical elements being wavelength selective optical elements, e.g. variable wavelength optical modules or wavelength lockers
-
- 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
- G02B6/42—Coupling light guides with opto-electronic elements
- G02B6/4201—Packages, e.g. shape, construction, internal or external details
- G02B6/4219—Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor
- G02B6/4236—Fixing or mounting methods of the aligned elements
- G02B6/4237—Welding
Abstract
A kind of light-receiving secondary module of offer of the embodiment of the present invention and optical module, the light-receiving secondary module, including：Pedestal, the pipe cap being located on pedestal and the holder being connect with pipe cap, light-sensitive element is provided on pedestal, collector lens is provided on pipe cap, holder is located on collector lens, holder includes the baffle for having through-hole, it is attached with collimation lens on baffle, filtering part is provided between collector lens and collimation lens；The light being incident on collimation lens passes through collimation lens, filtering part and collector lens successively, is injected on light-sensitive element.The position of each device in the light-receiving secondary module is fixed, when installing light-receiving secondary module, the X-axis and Y-axis angle of light-receiving secondary module need not be adjusted, thereby reduce the coupling technique difficulty of light-receiving secondary module, reduce coupling working hour, improve the manufacturability and production efficiency of the optical module for installing the light-receiving secondary module, and the smaller volume of optical module.
Description
Technical field
The present embodiments relate to optical communication technique more particularly to a kind of light-receiving secondary modules and optical module.
Background technology
With the swift and violent promotion for transmitting demand in human work and daily life to information, transmitted in Networks of Fiber Communications
Data volume increased dramatically.As the more band resources of the increase of capacity are applied, exist in entire fiber optic network at this time more next
The optical signal of more adjacent bands, and conventional optical transceiver module receiving terminal is easy to be done by closing on interval wavelength channels
It disturbs, therefore, the importance of narrow wavelength interval optical transceiver module is increasingly prominent.
Existing optical transceiver module, including transmitting TO, receive TO, adapter assembly, 4,45 degree filter plates of round and square tube body, outside
Set convex lens, filter plate, diaphragm and lens carrier etc..Wherein, the reception optical signal transmitted from adapter assembly is filtered by 45 degree
After the reflection of wave plate, in the form of diverging light, into external convex lens.The optical signal for dissipating form, by external convex lens
Refraction, switchs to directional light.Optical signal under directional light form filters out the optical signal for closing on interval wavelength, then by filter plate
By diaphragm, directional light is converged to the light for receiving TO by the lens on TO caps by the lens being again incident on the TO caps for receiving TO
On quick face.
But existing narrow wavelength interval optical transceiver module, in order to enable directional light is injected as much as possible receives TO's
On photosurface, when mounted, the adjustment that X-axis, Y-axis, Z axis, X-axis angle, Y-axis angle are carried out to receiving TO is needed, to setter
The requirement of work is high, and working hour is long, low production efficiency, it is more difficult to be produced in enormous quantities with realizing.
Invention content
A kind of light-receiving secondary module of offer of the embodiment of the present invention and optical module are received and dispatched with solving existing narrow wavelength interval light
Component low production efficiency, it is more difficult to the problem of to realize mass production.
In a first aspect, the embodiment of the present invention provides a kind of light-receiving secondary module, including：Pedestal, the pipe being located on pedestal
Cap and the holder being connect with pipe cap are provided with light-sensitive element on the pedestal, collector lens, institute are provided on the pipe cap
It states holder to be located on the collector lens, the holder includes the baffle for having through-hole, and it is saturating that collimation is attached on the baffle
Mirror is provided with filtering part between the collector lens and the collimation lens；
The light on the collimation lens is incident on successively by the collimation lens, the through-hole, the filtering part and institute
Collector lens is stated, is injected on the light-sensitive element.
Second aspect, the embodiment of the present invention provide a kind of optical module, including first aspect any one of them light-receiving
Module.
Light-receiving secondary module and optical module provided in an embodiment of the present invention, including pedestal, be located on pedestal pipe cap, with
And the holder being connect with pipe cap, light-sensitive element is provided on pedestal, collector lens is provided on pipe cap, it is saturating that holder is located at optically focused
On mirror, the one end of holder far from the pipe cap has first through hole, and collimation lens, collector lens and standard are provided in first through hole
It is provided with filtering part between straight lens, the light being incident on collimation lens passes through collimation lens, filtering part and collector lens successively,
It is injected on light-sensitive element.That is the light-receiving secondary module of the present embodiment, by by collimation lens, filtering part, collector lens and light
Quick element is set as an entirety, and along optical path direction, the position between each device is fixed, in this way in installation light-receiving secondary module
When, it is only necessary to the X-axis, Y-axis, three shaft position of Z axis for adjusting light-receiving secondary module, to find light-receiving secondary module and adapter assembly
Between Best Coupling position.Meanwhile the light-receiving secondary module and the distance between adapter assembly of the present embodiment are shorter,
The X-axis angle and Y-axis angle that light-receiving secondary module need not be adjusted when installing light-receiving secondary module, thereby reduce light-receiving
The coupling technique difficulty of secondary module reduces coupling working hour, improves the manufacturability for the optical module for installing the light-receiving secondary module
And production efficiency, and the smaller volume of optical module.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this hair
Some bright embodiments for those of ordinary skill in the art without having to pay creative labor, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the explosive view for the light-receiving secondary module that the embodiment of the present invention one provides；
Fig. 2 is the installation diagram for the light-receiving secondary module that the embodiment of the present invention one provides；
Fig. 3 is the sectional view for the light-receiving secondary module that the embodiment of the present invention one provides；
Fig. 4 is the installation diagram for the narrow wavelength interval optical transceiver module for being equipped with the light-receiving secondary module described in the present embodiment；
Fig. 5 is the explosive view of narrow wavelength interval optical transceiver module shown in Fig. 4；
Fig. 6 is the sectional view of holder in light-receiving secondary module provided in this embodiment；
Fig. 7 is another structural schematic diagram for the holder that the present embodiment is related to；
Fig. 8 is the structural schematic diagram of optical module embodiment provided by the invention.
Reference sign：
1：Narrow wavelength interval optical transceiver module；
2：Emit TO；
4：Round and square tube body；
5：Adapter assembly；
100：Light-receiving secondary module；
110：Pedestal；
120：Pipe cap；
130：Holder；
131：The cavity of holder；
132：First cavity；
133：Second cavity；
140：Collector lens；
150：Collimation lens；
160：Filter part；
170：Baffle；
171：Through-hole；
180：Light-sensitive element；
111：Groove；
112：Bottom annulus；
113：Top annulus；
114：Lath；
200：Optical module；
21：Plug；
22：Printed circuit board；
23：Shell.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
External convex lens and filter plate are first pasted onto lens by existing narrow wavelength interval optical transceiver module when mounted
On holder, lens carrier is welded on round and square tube body again.When coupling, receives TO and be coupled to the optical signal in the form of directional light
On the photosurface for receiving TO.
But due to being influenced by structural member size, tolerance and installation, directional light, which is not incident perpendicularly to, receives TO
In.In order to converge to directional light on the photosurface for receiving TO, receives TO and need to adjust X-axis angle, Y-axis angle, with corresponding flat
The angle of row light.Simultaneously as the distance between 45 degree of filter plates and the lens that receive on TO are farther out so that the thread of optical transport
Also longer, it will increase the offset of light angle in this way, therefore, receive in TO to make directional light impinge perpendicularly on, also need at this time
Adjust the X-axis angle for receiving TO, two shaft angle degree of Y-axis angle.
It follows that existing narrow wavelength interval optical transceiver module needs to carry out five axis (X-axis, Y when installation receives TO
Axis, Z axis, X-axis angle, Y-axis angle) coupling, process is complicated, and conventional automatic coupling equipment cannot be satisfied requirement, at present only
Can using manually coupling, and skilled staff be only capable of per hour standard output 8/everyone.It requires height to employee, and working hour is long, raw
It is low to produce efficiency, it is more difficult to produce in enormous quantities to realize.
In order to solve the problems in the prior art, light-receiving secondary module provided in an embodiment of the present invention, by collimation lens, filter
Wave part, collector lens and light-sensitive element are fabricated to an individual device so that the position between collimation lens and light-sensitive element
It is fixed, in this way when installing light-receiving secondary module, it is only necessary to the X-axis of light-receiving secondary module, three shaft positions of Y-axis, Z axis are adjusted,
The light received with coupling adapter component.
Meanwhile the light-receiving secondary module in the present embodiment with adapter assembly when coupling, it is closer apart from adapter assembly,
When on the optical transport to light-receiving secondary module that adapter assembly receives, the thread of optical transport is short, the offset of corresponding light angle
It measures small, in the preset error range, the X-axis angle and Y-axis angle of light-receiving secondary module need not be adjusted at this time, and then drop
The technology difficulty when coupling of low light-receiving secondary module, reduce work hours, to promote the optical module for installing the light-receiving secondary module
Manufacturability and production efficiency, and the smaller volume of optical module.
Technical scheme of the present invention is described in detail with specifically embodiment below.These specific implementations below
Example can be combined with each other, and same or analogous concept or process may be repeated no more in some embodiments.
Fig. 1 is the explosive view for the light-receiving secondary module that the embodiment of the present invention one provides, and Fig. 2 is that the embodiment of the present invention one provides
Light-receiving secondary module installation diagram, Fig. 3 is the sectional view of light-receiving secondary module that the embodiment of the present invention one provides.
As shown in Figure 1 to Figure 3, the light-receiving secondary module 100 of the present embodiment includes：Pedestal 110 is located on pedestal 110
Pipe cap 120 and the holder 130 that is connect with pipe cap 120, be provided with light-sensitive element 180, the pipe cap on the pedestal 110
Collector lens 140 is provided on 120, the holder 130 is located on the collector lens 140, and the holder 130 includes having
The baffle 170 of through-hole 171 is attached with collimation lens 150, the collector lens 140 and the collimation lens on the baffle 170
Filtering part 160 is provided between 150.
Wherein, collimation lens 150 are converted into directional light simultaneously for will enter into the diverging light on the collimation lens 150
It is emitted to the filtering part 160 by the through-hole 171 on baffle 170.
Part 160 is filtered, for being filtered to the directional light for being incident on filtering part 160, the directional light of preset wavelength is gone out
It is mapped to collector lens 140, and then filters out the optical signal for closing on interval wavelength.
Collector lens 140 is penetrated for the directional light for the preset wavelength being incident on collector lens 140 to be converted into converged light
Enter on light-sensitive element 180.
The light-receiving secondary module 100 of the present embodiment can be applied to ROSA (Receiver Optical Subassembly,
Light-receiving sub-assembly) or optical transceiver module in, for optical signal to be converted to electric signal (i.e. O/E conversions), and above-mentioned ROSA or
Optical transceiver module may be mounted in optical module, constitute a part for optical module.
Specifically, as shown in Figure 1 to Figure 3, the light-receiving secondary module 100 of the present embodiment includes pedestal 110, pipe cap 120, branch
Frame 130, collimation lens 150, filtering part 160, collector lens 140 and light-sensitive element 180, wherein be provided on pedestal 110 photosensitive
Element 180, pipe cap 120 are located on pedestal 110, on the one end (top for being denoted as pipe cap 120) of pipe cap 120 far from pedestal 110
Collector lens 140 is set.Holder 130 is located on collector lens 140, and is connect with pipe cap 120.Gear is provided on holder 130
There is on the baffle 170 plate 170 through-hole 171, the through-hole 171 to be connected to the cavity 131 of holder 130, the attachment of collimation lens 150
On the baffle 170, filtering part 160 is arranged between quasi- lens and collector lens 140.
Optionally, the holder 130 of the present embodiment can be connect with the top of pipe cap 120, alternatively, holder 130 covers pipe cap
120 partial sidewall or whole side walls, connect with the side wall of pipe cap 120.
The collimation lens 150 of the present embodiment is bonded on the baffle 170.Optionally, it is provided with metal on collimation lens 150
Frame, such collimation lens 150 can be welded on baffle 170, and the present embodiment collimation lens 150 are between the baffle 170
Fixed form be not limited, as long as ensure collimation lens 150 be fixedly attached in baffle 170.
In the present embodiment, collimation lens 150 is attached on baffle 170, the through-hole 171 on baffle 170 plays diaphragm
Effect can prevent the directional light that collimation lens 150 exports to be incident on the place except light-sensitive element 180, reduce the reception of light
The problem of efficiency, generates.
It filters part 160 to be arranged between collimation lens 150 and collector lens 140, at this point, filtering part 160 can be with collimation
Lens 150 are contacted or are contacted with collector lens 140；Alternatively, between filtering part 160 and collimation lens 150 or collector lens 140
With gap；Alternatively, all having gap between filtering part 160 and collimation lens 150 and collector lens 140.
The light-sensitive element 180 of the present embodiment is specifically located at pedestal 110 and (is denoted as pedestal close to the one side of collector lens 140
110 inner surface) on, such as light-sensitive element 180 is bonded on the inner surface of pedestal 110 or light-sensitive element 180 is welded on bottom
On the inner surface of seat 110.
The light-sensitive element 180 of the present embodiment can be GaAs (GaAs), indium phosphide (InP), InGaAsP (InGaAs)
It is made Deng as photosensitive material.Such as utilize organometallic vapor deposition method (Metal-Organic Chemical Vapor
Deposition；The modes such as MOCVD), light-sensitive element 180 is made using above-mentioned photosensitive material.
When illumination is mapped on light-sensitive element 180, light-sensitive element 180 generates photoelectric current, by the amplification across resistance, generates electricity
Signal output is pressed, realizes conversion of the optical signal to electric signal.
Collimation lens 150 and filtering part 160 are first fixed on holder 130 by the present embodiment when assembling light-receiving secondary module
On, then by collector lens 140 on pipe cap 120, the lid of pedestal 110 is located on pipe cap 120, then collimation will be installed saturating
The holder 130 of mirror 150 and filtering part 160 is fixed on the pipe cap 120 for being equipped with collector lens 140 and pedestal 110.
In this way so that collimation lens 150, filtering part 160, collector lens 140 and light-sensitive element 180 form a whole,
When mounted, the number of devices for including due to it is few, it is possible to reduce the overlay error of each part, and then improve light-receiving time mould
The accuracy of manufacture of block 100.In this way along optical path direction, into the light of collimation lens 150, by the collimation of collimation lens 150, filter
It after the filtering of wave part 160 and the convergence of collector lens 140, can accurately be injected on light-sensitive element 180, without adjusting light
Position angle between quick element 180 and collimation lens 150.
Optionally, the light-receiving secondary module 100 of the present embodiment further includes the round and square tube body 4 with opening, round and square tube body 4
There is rectangular side wall opening, the holder 130 and the pipe cap 120 to be inserted into the round and square tube body 4 by the opening.
Fig. 4 is the installation diagram for the narrow wavelength interval optical transceiver module for being equipped with the light-receiving secondary module described in the present embodiment,
Fig. 5 is the explosive view of narrow wavelength interval optical transceiver module shown in Fig. 4.
As shown in Figures 4 and 5, which includes light-receiving secondary module 100,5 and of adapter assembly
Emit TO2.Wherein, the round and square tube body 4 in light-receiving secondary module 100 includes the first opening, the second opening and third opening, holder
130 and the pipe cap 120 be plugged in the first open end, adapter assembly 5 is plugged in the second open end, and transmitting TO2 is plugged in the
Three open ends.Adapter assembly 5 is connect with external optical fiber, the optical signal for being transmitted in reception optical fiber, and optical signal is penetrated
Enter in shell.
In a kind of example, if the light inlet face of the light-emitting window of adapter assembly 5 and collimation lens 150, adapter
Light can be directly incident on collimation lens 150 by component 5.
In another example, if the light inlet of the light-emitting window of adapter assembly 5 and collimation lens 150 not face, at this time
In order to which the light for making the light-emitting window of adapter assembly 5 send out is incident on as much as possible on light collimating lenses 150, then in adapter group
Speculum (not shown) is set between part 5 and collimation lens 150, which sends out the light-emitting window of adapter assembly 5
Light emitting to collimation lens 150 on.For example, as shown in Figures 4 and 5, adapter assembly 5 is arranged with collimation lens 150 in 90 °,
At this point it is possible to which 45 degree of speculums are arranged between adapter assembly 5 and collimation lens 150, setting 45 degree of speculums can will be adapted to
In the light emitting that the light-emitting window of device assembly 5 is sent out to collimation lens 150.Wherein, the present embodiment to the setting angle of speculum not
It is limited, is determined with specific reference to the position relationship of adapter assembly 5 and collimation lens 150.
Narrow wavelength interval optical transceiver module 1 as shown in Figures 4 and 5, in installation diagram 1 to light-receiving secondary module shown in Fig. 3
When 100, it is only necessary to the X-axis, Y-axis, three axis of Z axis for adjusting light-receiving secondary module 100, to find light-receiving secondary module 100 and be adapted to
Best Coupling position between device assembly 5.
Meanwhile as shown in Figures 4 and 5, the distance between light-receiving secondary module 100 and adapter assembly 5 are smaller, adapter group
When on the optical transport to light-receiving secondary module 100 that part 5 receives, the thread of optical transport is short, and the offset of corresponding light angle is small,
In preset error range.In this way when installing light-receiving secondary module 100, the X of light-receiving secondary module 100 need not be adjusted
Shaft angle degree and Y-axis angle thereby reduce technology difficulty when light-receiving secondary module 100 couples, reduce light-receiving secondary module 100
Installation work-hour, promote the manufacturability and production efficiency of narrow wavelength interval optical transceiver module 1.
Meanwhile in the prior art, collimation lens 150 and filtering part 160 being mounted on to the knot for the outside for receiving TO pipe caps
Structure is compared, compact-sized, small and then smaller Fig. 4 of the light-receiving secondary module 100 of the present embodiment and shown in fig. 5 narrow
The volume of wavelength interval optical transceiver module 1.
In actual use, as shown in Figure 4 and Figure 5, the optical signal of 5 reception optical fiber of adapter assembly transmission, and will receive
To optical signal be input in the inner cavity of optical secondary module in the form of diverging light.It is saturating to enter collimation for the diverging light in inner cavity at this time
The diverging light is converted into directional light by mirror 150, collimation lens 150.Optical signal under directional light form passes through logical on baffle 170
Behind hole 171, it is incident on filtering part 160, which filters out the optical signal for closing on interval wavelength.160 mistake of filtered part
Directional light after filter enters collector lens 140.Collector lens 140 converges the directional light, forms converged light, and by the remittance
Optically focused is incident on light-sensitive device.Optical signal incident thereon is converted into voltage signal by light-sensitive element 180, and then realizes light
Conversion of the signal to electric signal.
Light-receiving secondary module provided in an embodiment of the present invention, including pedestal, the pipe cap and and pipe cap that are located on pedestal
The holder of connection is provided with light-sensitive element on pedestal, collector lens is provided on pipe cap, and holder is located on collector lens, branch
Frame includes the baffle for having through-hole, and collimation lens is attached on baffle, and filtering part is provided between collector lens and collimation lens,
The light being incident on collimation lens passes through collimation lens, filtering part and collector lens successively, is injected on light-sensitive element.That is this reality
The light-receiving secondary module for applying example, by setting collimation lens, filtering part, collector lens and light-sensitive element to an entirety, edge
Optical path direction, the position between each device is fixed, and structure is through gathering.Meanwhile the light-receiving secondary module of the present embodiment be adapted to
When device assembly couples, the distance between adapter assembly is shorter, and light-receiving need not be adjusted when installing light-receiving secondary module
The X-axis angle and Y-axis angle of secondary module thereby reduce the coupling technique difficulty of light-receiving secondary module, reduce coupling working hour, carry
The manufacturability and production efficiency of the optical module for installing the light-receiving secondary module, and the smaller volume of optical module are risen.
Shown in Fig. 1 and Fig. 3, in order to improve the connection reliability of holder 130 and pipe cap 120, in pipe cap 120
Top setting fluted 111, the bottom end of the holder 130 is fixed in the groove 111.
Specifically, the bottom end of holder 130 is bonded or welded in groove 111, it is convenient that holder 130 is positioned, together
When convenient for the connection between holder 130 and pipe cap 120, and then improve the connection reliability between holder 130 and pipe cap 120.
The present embodiment is not limited the concrete shape of groove 111, as long as the bottom end of holder 130 can be made to be fixed therein
.
Optionally, the shape adaptation of the shape of the present embodiment further groove 111 and the bottom end of holder 130, such as holder 130
When bottom end is round, then groove 111 is also circular groove, and when the bottom end of holder 130 is rectangular, then groove 111 is also rectangular
Groove.
In one possible implementation, the groove 111 of the present embodiment is set along the outer rim of the collector lens 140
It sets.At this point, when holder 130 is located on collector lens 140, the shape and size and optically focused of the bottom end opening of holder 130 are saturating
The shape and size of mirror 140 are consistent, and the cavity 131 of holder 130 plays the role of diaphragm, can prevent filtering part 160 from exporting
Light is incident on the place except collector lens 140, and then improves the light receiving efficiency of light-receiving secondary module 100.
Fig. 6 is the sectional view of holder in light-receiving secondary module provided in this embodiment.On the basis of the above embodiments, such as
Shown in Fig. 3 and Fig. 6, the holder 130 of the present embodiment is both ends, and there is open pipe string, the baffle 170 to be arranged in the tubing string
Inner wall on.
Specifically, as shown in fig. 6, the holder 130 of the present embodiment is the hollow column jacket that both ends have opening, baffle plate setting exists
On the inner wall of tubing string, at this point, the cavity 131 of holder 130 is divided into the first cavity 132 and the second cavity 133 by baffle 170, wherein
First cavity 132 and the second cavity 133 are interconnected by the through-hole 171 on baffle 170.Collimation lens 150 is located at the at this time
It in one cavity 132, and is attached on baffle 170, collector lens 140 is located in the second cavity 133.
Wherein, the first cavity 132 is identical with the diameter of the second cavity 133, alternatively, the diameter of the first cavity 132 is more than the
The diameter of the diameter of two cavitys 133 or the first cavity 132 is less than the diameter of the second cavity 133, and the present embodiment does not limit this
System.
Optionally, as shown in fig. 7, the holder 130 of the present embodiment may include bottom annulus 112, top annulus 113, with
And multiple laths vertical 114 of connection top annulus 113 and bottom annulus 112, the baffle 170 are arranged in the top annulus
On 113 inner wall.
In a kind of possible realization method of the present embodiment, the filtering part 160 of the present embodiment is filter plate, the filter plate
It can be directly bonded in the upper surface of collimation lens 150, the mounting process of filter plate can be simplified in this way, meanwhile, it can reduce
The height of holder 130, and then the volume of entire light-receiving secondary module 100 is reduced, realize the small-sized of light-receiving secondary module 100
Change.
Optionally, with continued reference to shown in Fig. 3, collimation lens 150 is attached to the side of the baffle 170, the filter plate
It is attached to the other side of the baffle 170.At this point, the through-hole 171 on baffle 170 forms diaphragm, collimation lens 150 can be made
The directional light of injection is fully radiated to filter plate, improves the transfer efficiency of light.Meanwhile it can be caused to avoid being separately provided when diaphragm
The device count and volume for increasing light-receiving secondary module 100 the problem of, further simplify light-receiving secondary module 100 structure and
Mounting process reduces the volume of light-receiving secondary module 100.
In the alternatively possible realization method of the present embodiment, the filtering part 160 of the present embodiment can also be optical film
Layer, the optical film layer can filter out the optical signal for closing on interval wavelength, and it is saturating towards optically focused which is plated in collimation lens 150
In the one side of mirror 140；Alternatively, optical film layer is plated in collector lens 140 towards in the one side of collimation lens 150.
In a kind of example, optical film layer is plated in collimation lens 150 towards in the one side of collector lens 140, in this way, from suitable
The reception optical signal transmitted with device assembly 5, into the collimation lens 150 on holder 130, is switched to parallel in the form of diverging light
Light.Optical signal under directional light form is incident on the optical film layer on collimation lens 150, which, which filters out, closes on interval
The optical signal of wavelength.By the through-hole 171 on baffle 170, (through-hole 171 plays diaphragm to directional light by optical film layer filtering
Effect) after, be incident on the collector lens 140 on pipe cap 120.Collector lens 140 is to being injected into directional light progress thereon
After convergence, it is incident on the light-sensitive element 180 on pedestal 110.
In another example, optical film layer is plated in collector lens 140 towards in the one side of collimation lens 150, in this way, from
The reception optical signal that adapter assembly 5 transmits into after the collimation lens 150 on holder 130, is switched in the form of diverging light
Directional light.After optical signal under directional light form is by the through-hole 171 on baffle 170, the optics that is incident on collector lens 140
In film layer, which filters out the optical signal for closing on interval wavelength.Directional light by optical film layer filtering is in collector lens
Under 140 convergence, it is incident on light-sensitive element 180.
The light-receiving secondary module of the present embodiment is fabricated to optical film layer by that will filter part, which is plated in standard
It on straight lens, or is plated on collector lens, the number of devices of light-receiving secondary module can be further reduced, simplify light-receiving
Module mounting process, and reduce the volume of light-receiving secondary module.
Fig. 8 is the structural schematic diagram of optical module embodiment provided by the invention, as shown in figure 8, the optical module of the present embodiment
200 include light-receiving secondary module 100 shown in above-described embodiment.Meanwhile the optical module of the present embodiment further includes plug 21, printing
Circuit board 22, shell 23 etc..
Optionally, when the optical module of the present embodiment 200 is the optical module of transceiver, which further includes connecing
Receive the (not shown)s such as device, amplifier and coupler.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Present invention has been described in detail with reference to the aforementioned embodiments for pipe, it will be understood by those of ordinary skill in the art that：Its according to
So can with technical scheme described in the above embodiments is modified, either to which part or all technical features into
Row equivalent replacement；And these modifications or replacements, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of light-receiving secondary module, which is characterized in that including：It pedestal, the pipe cap being located on pedestal and is connect with pipe cap
Holder, be provided with light-sensitive element on the pedestal, collector lens be provided on the pipe cap, the holder is located at described poly-
On optical lens, the holder includes the baffle for having through-hole, and collimation lens, the collector lens and institute are attached on the baffle
It states and is provided with filtering part between collimation lens；
It is incident on light on the collimation lens and by the collimation lens, the through-hole, the filtering part and described gathers successively
Optical lens is injected on the light-sensitive element.
2. light-receiving secondary module according to claim 1, which is characterized in that the filtering part is filter plate, the collimation
Lens are attached to the side of the baffle, and the filter plate is attached to the other side of the baffle.
3. light-receiving secondary module according to claim 1, which is characterized in that the filtering part is optical film layer, the light
It learns film layer and is plated in the collimation lens towards in the one side of the collector lens；Alternatively, the optical film layer is plated in the optically focused
Lens are towards in the one side of the collimation lens.
4. light-receiving secondary module according to claim 1, which is characterized in that the top setting of the pipe cap is fluted, described
The bottom end of holder is fixed in the groove.
5. according to any one of claims 1 to 3 light-receiving secondary module, which is characterized in that the holder wraps up the pipe cap.
6. light-receiving secondary module according to claim 1, which is characterized in that the holder is the pipe that both ends have opening
Column, the baffle plate setting is on the inner wall of the tubing string.
7. light-receiving secondary module according to claim 1, which is characterized in that the holder includes top annulus, bottom circle
Ring and the multiple vertical laths for connecting the top annulus and the bottom annulus, the baffle plate setting are justified at the top
On the inner wall of ring.
8. light-receiving secondary module according to claim 1, which is characterized in that further include round and square tube body, the round and square tube body
Rectangular side wall there is opening, the holder and the pipe cap to pass through in the opening insertion round and square tube body.
9. light-receiving secondary module according to claim 1, which is characterized in that the pipe cap is welded to connect with the holder.
10. a kind of optical module, which is characterized in that including light-receiving secondary module as described in any one of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288561.4A CN108490554A (en) | 2018-03-30 | 2018-03-30 | Light-receiving secondary module and optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810288561.4A CN108490554A (en) | 2018-03-30 | 2018-03-30 | Light-receiving secondary module and optical module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108490554A true CN108490554A (en) | 2018-09-04 |
Family
ID=63318203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810288561.4A Pending CN108490554A (en) | 2018-03-30 | 2018-03-30 | Light-receiving secondary module and optical module |
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| Country | Link |
|---|---|
| CN (1) | CN108490554A (en) |
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| CN110389414A (en) * | 2019-07-19 | 2019-10-29 | 杭州耀芯科技有限公司 | A kind of single fiber bi-directional multimode wavelength-division multiplex photoelectric conversion device and preparation method |
| CN112230351A (en) * | 2020-10-27 | 2021-01-15 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN112285846A (en) * | 2019-07-22 | 2021-01-29 | 青岛海信宽带多媒体技术有限公司 | Optical transceiving submodule and optical module |
| CN115050061A (en) * | 2021-12-29 | 2022-09-13 | 荣耀终端有限公司 | Electronic device |
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| US20130168537A1 (en) * | 2010-09-20 | 2013-07-04 | Opticis Co., Ltd. | Apparatus for wavelength-division multiplexing and demultiplexing |
| CN205333929U (en) * | 2016-02-03 | 2016-06-22 | 厦门市贝莱通信设备有限公司 | Coaxial photoelectric detector of plug -in list wavelength |
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| US20130168537A1 (en) * | 2010-09-20 | 2013-07-04 | Opticis Co., Ltd. | Apparatus for wavelength-division multiplexing and demultiplexing |
| CN201910805U (en) * | 2010-12-22 | 2011-07-27 | 深圳新飞通光电子技术有限公司 | Single optical bidirectional transmission light-transceiving integrated component |
| CN106154436A (en) * | 2015-04-21 | 2016-11-23 | 华为技术有限公司 | A kind of axis light detector |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110389414A (en) * | 2019-07-19 | 2019-10-29 | 杭州耀芯科技有限公司 | A kind of single fiber bi-directional multimode wavelength-division multiplex photoelectric conversion device and preparation method |
| CN112285846A (en) * | 2019-07-22 | 2021-01-29 | 青岛海信宽带多媒体技术有限公司 | Optical transceiving submodule and optical module |
| CN112230351A (en) * | 2020-10-27 | 2021-01-15 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN115050061A (en) * | 2021-12-29 | 2022-09-13 | 荣耀终端有限公司 | Electronic device |
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Application publication date: 20180904 |