CN109683333A - Optical receiver and optical module - Google Patents
Optical receiver and optical module Download PDFInfo
- Publication number
- CN109683333A CN109683333A CN201910017021.7A CN201910017021A CN109683333A CN 109683333 A CN109683333 A CN 109683333A CN 201910017021 A CN201910017021 A CN 201910017021A CN 109683333 A CN109683333 A CN 109683333A
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- Prior art keywords
- optical
- light
- optical receiver
- cavity
- shell
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/10—Beam splitting or combining systems
- G02B27/106—Beam splitting or combining systems for splitting or combining a plurality of identical beams or images, e.g. image replication
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B19/00—Condensers, e.g. light collectors or similar non-imaging optics
- G02B19/0033—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use
- G02B19/0076—Condensers, e.g. light collectors or similar non-imaging optics characterised by the use for use with a detector
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
- H04B10/66—Non-coherent receivers, e.g. using direct detection
- H04B10/67—Optical arrangements in the receiver
Abstract
This application provides a kind of optical receiver and optical modules, belong to technical field of photo communication.The optical receiver includes: light multiplexing component, focusing lens array and optical detector；A branch of incident light is divided at least two beam directional lights by the light multiplexing component；At least two beam parallel light focusings that the focusing lens array respectively separates the light multiplexing component are at least two beam convergence light；The optical detector receives the converged light.The characteristics of optical receiver provided by the present application has coupling operation simple, is convenient for assembling, maintenance.
Description
Technical field
This application involves technical field of photo communication more particularly to a kind of optical receivers and optical module.
Background technique
Optical receiver is the important component in optical communication system, for converting optical signals to electric signal.In general, light
Receiver includes collimation lens, light multiplexing component, multiple condenser lenses and multiple optical detectors.Wherein, light multiplexing component will
Incident light is converted to the equidistant directional light of multichannel.Condenser lens and optical detector are corresponded with equidistant directional light, are led to
Every road is optically coupled to optical detector by over-focusing lens in parallel, to carry out photoelectric signal transformation.
In the related technology, in order to ensure effective transmitting of information, saturating Ying Jing will utmostly be optically coupled to optical detection in parallel
Device.In coupling, need to debug the position of multiple condenser lenses respectively, to meet decoupling calls.
Wherein, the process for debugging the position of multiple condenser lenses respectively has heavy workload, cumbersome defect.
Summary of the invention
The application provides a kind of optical receiver and optical module, to solve deficiency in the related technology.
In a first aspect, the embodiment of the present application provides a kind of optical receiver, the optical receiver include: light multiplexing component,
Focusing lens array and optical detector；
A branch of incident light is divided at least two beam directional lights by the light multiplexing component；
At least two beam parallel light focusings that the focusing lens array respectively separates the light multiplexing component are at least two
Beam convergence light；
The optical detector and the reception converged light.
Second aspect, a kind of optical module provided by the embodiments of the present application, including optical receiver described in first aspect.
Technical solution provided herein at least has the advantages that
In the optical receiver of the embodiment of the present application body, it is parallel that a branch of incident light is divided at least two beams by light multiplexing component
Light.At least two beam parallel light focusings are respectively at least two beam convergence light by focusing lens array.Also, optical detection in optical receiver
Device receives converged light, realizes the conversion of photosignal.Light will be optically coupled to using one optical element of focusing lens array in parallel
On detector, reduce the workload for debugging focusing lens array in coupling process, simplify operation, improves assembling or maintenance effect
Rate.
It should be understood that above general description and following detailed description be only it is exemplary and explanatory, not
The application can be limited.
Detailed description of the invention
The drawings herein are incorporated into the specification and forms part of this specification, and shows the implementation for meeting the application
Example, and together with specification it is used to explain the principle of the application.
Fig. 1 is the light path schematic diagram of optical receiver shown according to an exemplary embodiment；
Fig. 2 is the top view of optical receiver shown according to an exemplary embodiment；
Fig. 3 is the side view cutaway drawing of optical receiver shown according to an exemplary embodiment；
Fig. 4 is the perspective view of part-structure in optical receiver shown according to an exemplary embodiment；
Fig. 5 is the perspective view of the optical detector part of optical receiver shown according to an exemplary embodiment.
Each label is meant in attached drawing:
1, light multiplexing component；
2, focusing lens array；
3, optical detector；
41, shell；
411, open sides；
412, open end；
42, cavity；
43, sealing block；
44, cover board；
5, optical window；
6, fiber adapter；
7, first vector；
71, front end face；
72, convex block；
8, optical detector carrier；
81, conductor；
9, Second support；
91, blocking surface；
10, circuit board；
101, operational amplifier；
A, incident light；B, directional light；C, converged light.
Specific embodiment
Example embodiments are described in detail here, and the example is illustrated in the accompanying drawings.Following description is related to
When attached drawing, unless otherwise indicated, the same numbers in different drawings indicate the same or similar elements.Following exemplary embodiment
Described in embodiment do not represent all embodiments consistent with the application.On the contrary, they be only with it is such as appended
The example of the consistent device and method of some aspects be described in detail in claims, the application.
In the optical receiver that the relevant technologies provide, usual light multiplexing component separates the equidistant directional light in 4 tunnels.Also, light
Receiver includes 4 condenser lenses and 4 optical detectors, and 4 tunnels are equidistantly optically coupled to 4 respectively by 4 condenser lenses in parallel
Optical detector.Optical receiver in the related technology needs to debug the position of each condenser lens respectively in coupling.
Based on above-mentioned, for the ease of coupling, light multiplexing component and optical detector are usually first fixed under conditions of gauge without light source
Position, later in the case where there is light conditions debug condenser lens position.Pass through the fixed light multiplexing component in position and optical detection
Device reduces the uncertain factor in coupling process, to debug the position of condenser lens.
Further, due to installing light multiplexing component under conditions of gauge without light source, it is thus possible to which there are light multiplexing component peaces
Fill angle or position deviation.These deviations may cause the directional light separated by light multiplexing component and be difficult to lead to detector presence
The azimuth deviation of over-focusing lens adjustment, and then weaken Effect on Detecting.Therefore in order to correct light multiplexing component be likely to occur it is inclined
Difference, optical receiver further include the collimation lens being placed in front of light multiplexing component, incident light incident recovery after collimation lens collimates
Use component.
When using the optical receiver provided in the related technology, inventor's discovery:
First, for the optical receiver provided in the related technology in coupling, the process for debugging condenser lens is complicated, and time-consuming.
Second, it is collimated using collimation lens, increases coupling step, influence assembling or overhaul efficiency.Specifically,
If there is collimation lens installation deviation, the Effect on Detecting of optical detector is not only influenced, also needs to remove collimation in maintenance simultaneously thoroughly
Mirror and condenser lens, process are complicated.
Based on the above issues, the embodiment of the present application provides a kind of optical receiver.Fig. 1 is shown according to an exemplary embodiment
The index path of optical receiver out；Fig. 2~Fig. 5 is the structural schematic diagram of the optical receiver, and wherein Fig. 2 is top view, and Fig. 3 is
Cross-sectional view, Fig. 4 are perspective views, and Fig. 5 is partial perspective view.
As shown in Figure 1, the optical receiver that the embodiment of the present disclosure provides includes: light multiplexing component 1,2 and of focusing lens array
Optical detector 3.
Wherein, light multiplexing component 1 is at least two beam directional light b for a branch of incident light a to be divided to.It should be noted that working as
When a branch of incident light a is divided into the above directional light b of 3 beams by light multiplexing component 1, the above directional light b of 3 beams is equidistant.
At least two beam directional light b that focusing lens array 2 is used to respectively separate light multiplexing component 1 are focused at least two beams
Converged light c.When light multiplexing component 1 separates at least 3 beams or more directional light b at equal intervals, focusing lens array 2 is respectively by 3 beams
The above directional light b is focused to equal number of converged light c.
Wherein, focusing lens array 2 is an optical element.Illustratively, focusing lens array 2 includes substrate and formation
Multiple lenticular bodies on substrate.And multiple lenticular bodies are correspondingly arranged with multi beam directional light b, realization gathers every beam directional light b
It is burnt.
Optical detector 3 receives converged light c.Converged light c is incident upon on the photosurface of optical detector 3, and then optical detector 3 will
The converged light c received is converted to electric signal.Wherein, optional optical receiver includes at least two optical detectors 3, an optical detection
Device 3 receives a branch of converged light c.
Due to using focusing lens array 2, the position by debugging focusing lens array 2 can be adjusted at least two
The focus level of road converged light c, so that at least two-way converged light c is respectively coupled on optical detector 3.With provide in the related technology
Optical receiver compare, optical receiver provided by the present application simplifies coupling process, facilitate shorten coupling time.
Also, coupling is synchronized at least two-way directional light b since focusing lens array 2 can be passed through, in order to just
In the different coupling effect of realization, which can use following assembling mode:
Optical detector 3 is fixed in the case where gauge without light source, debugs light multiplexing component 1 in the case where there is light source later and is gathered
The relative position of focus lens array 2, so that at least two beam convergence light c are coupled respectively on the photosurface of different optical detectors 3.
It should be noted that in the embodiment of the present application, due to passing through focusing lens array 2 at least two-way directional light b
Coupling is synchronized, therefore the position of light multiplexing component 1 is not fixed and not will increase workload in coupling process.
Further, since the position of light multiplexing component 1 is not fixed, in the embodiment of the present application, by changing light
The relative position of multiplexing assembly 1 and focusing lens array 2 can eliminate between converged light c and optical detector 3 that there may be orientation
Deviation.In other words, in the optical receiver, without collimation lens.In this way, the step of eliminating installation collimation lens, letter
Change coupling process.
In the embodiment of the present application, coupling process is simplified by changing the composition of optical receiver, improves coupling efficiency；And
Coupling effect is flexible, improves primary coupling success rate, and then helps promote optical receiver assembling or reprocess efficiency.Also, it should
Optical receiver reduces the quantity of optical element, reduces the equipment cost of optical receiver.
In one embodiment, as shown in Figure 2 to 4, optical receiver includes the shell for being formed with cavity 42, in shell
One end is provided with the optical window 5 for making incident light inject cavity 42.Wherein, light multiplexing component 1, focusing lens array 2 and at least two
Optical detector 3 is contained in cavity 42.The corresponding optical window 5 of light multiplexing component 1 is arranged, to receive incident light a.
It is provided with the Second support 9 of carrying light multiplexing component 1 and focusing lens array 2 in cavity 42, is carried by second
Body 9 is located at light multiplexing component 1 and focusing lens array 2 and optical window 5 at sustained height, guarantees that optical path is smooth.For example, optical window
5, the axis of light multiplexing component 1 and focusing lens array 2 is overlapped.
Wherein, without limitation for the shape of Second support 9, in order to adjusting light multiplexing component 1 and focusing lens array 2
Relative position subject to.Illustratively, as shown in figure 3, being formed with protrusion and recessed portion in the upper surface of Second support 9, protrusion
Portion is for carrying light multiplexing component 1, and recessed portion is for carrying focusing lens array 2, to make up light multiplexing component 1 and condenser lens
The difference in height of array 2 itself.
Optical receiver further includes the fiber adapter 6 being connected with shell, and fiber adapter 6 corresponds to optical window outside shell
5 settings.In general, optical receiver and optical fiber cooperate, optical fiber is connected especially by fiber adapter 6, the optical signal that optical fiber is transmitted
As incident light.Fiber adapter 6 is corresponding with optical window 5, so that incident light injects cavity 42 by optical window 5, and then by light multiplexing
Component 1 receives.
In one embodiment, shell includes the shell 41 for being formed with cavity 42.Wherein, Second support 9 is arranged in shell
On 41 bottom surface.Optionally, Second support 9 is an integral molding structure with shell 41.
Shell 41 includes the open sides 411 of connection cavity 42, such as the top surface of shell 41 forms open sides 411 or shell
41 left side or right side form open sides 411.The light multiplexing group being contained in cavity 42 is conveniently adjusted by open sides 411
The relative position of part 1 and lens array 2.
Shell further includes the cover board 44 being connected with the open sides 411 of shell 41, blocks open sides 411 by cover board 44.When
Coupling after the completion of using cover board 44 block open sides 411, with ensure 42 inner assembly of cavity using safe.
Cover board 44 selectively blocks open sides 411.For example, cover board 44 is connect with shell 41 by slot；Alternatively, cover board
44 is hinged with shell 41, is covered on the open sides 411 of shell 41 by rotation.When assembling or maintenance, it is split to release cover board 44
The closure for putting side 411 makes to expose inside cavity 42 to operate.
In one embodiment, shell also has the open end 412 being connected to cavity 42, the open end 412 and 5 phase of optical window
To setting.Optionally, shell 41 includes open end 412, and open end 412 is adjacent with open sides 411, and extending direction is different.
In general, optical receiver further includes the circuit board being connected with optical detector.Be equipped on circuit boards operational amplifier,
The components such as capacitor convert formed electric signal to transmit optical detector.
In the related technology, in such a way that circuit board and shell are integrated.Specifically, package closure, and collect on shell
At there is circuit.The components such as trans-impedance amplifier, capacitor are arranged in tube body, and welding circuit board is outside tube body, component and electricity
Road plate passes through the circuit communication on shell.
In this manner, it is likely to the problem of circuit damage or failure welding occur in soldered circuit board, if
It may be damaged shell when needing replacing component, similar situation will affect the normal use of optical receiver.
In order to solve this technical problem, optical receiver provided by the embodiments of the present application uses following scheme.
In one embodiment, optical receiver further includes the circuit board 10 for being equipped with operational amplifier 101, optical detector 3
It is connected with operational amplifier 101.Optical detector 3 is removably inserted into cavity far from one end of optical window 5 from shell with circuit board 10
42。
Optionally, one end of shell is open end 412, and circuit board 10 is inserted into cavity 42 by open end 412.Also, light
Detector 3 is no longer directly fixedly installed in cavity 42, but in such a way that same circuit board 10 is inserted into cavity 42 together, always
Holding is connected with operational amplifier 101.
With circuit board 10 compared with shell welding, circuit board 10 and shell removably grafting effectively reduce circuit board
A possibility that 10 damage.Also, the mode of grafting can replace operation in the case where ensureing that the structures such as shell, circuit board are intact
The components such as amplifier 101.
In one embodiment, the bottom surface pad of circuit board 10 is equipped with first vector 7, and first vector 7 is equally from open end 412
It is inserted into cavity 42.In general, the thinner thickness of circuit board 10, is convenient for circuit board 10 being inserted into cavity 42 by first vector 7.
First vector 7 is also used to be arranged optical detector 3.Illustratively, first vector 7 includes the front end face towards cavity 42
71, optical detector 3 is arranged on front end face 71 in a manner of the directional light b separated perpendicular to light multiplexing component 1.In this way, light is visited
It surveys device 3 and is able to receive directly the converged light c coupled by focusing lens array 2.
Fig. 5 is the partial perspective view of optical detector shown according to an exemplary embodiment.Further, as shown in figure 5,
Optical detector 3 is fixed on optical detector carrier 8.Illustratively, optical detector 3 is arranged on the front end face of optical detector carrier 8,
The front end face is towards cavity 42, in order to which optical detector 3 receives converged light c.
Also, optical detector carrier 8 is connected with the front end face 71 of first vector 7.And optical detector carrier 8 includes being formed
Conductor 81 in surface, conductor 81 are used to connect the conductor 81 of optical detector 3 and operational amplifier 101.Illustratively, conductor 81 wraps
Include connected first part and second part.Wherein, first part is formed on the front end face of optical detector carrier 8, and second
Divide and is formed on 8 upper surface of optical detector carrier.In use, connecting first part and optical detector 3, Yi Ji by gold thread etc.
Two parts and operational amplifier 101.
For optical detector carrier 8 material without limitation, for example, ceramic monolith.The material of conductor 81 is not limited
It is fixed, the layer gold being for example, plated on 7 surface of first vector.
Also, optional optical detector carrier 8 is arranged close to the upper surface of first vector 7, and operational amplifier is close to circuit board
10 end setting, to shorten the distance of optical detector 3 and operational amplifier 7, shortens the distance of gold thread, passes through gold thread to ensure
The signal quality transmitted with conductor 81.
In one embodiment, first vector 7 includes the convex block 72 protruded from front end face 71 towards optical window 5.And in cavity
Blocking surface 91 is provided in 42.Blocking surface 91 offsets with convex block 72, in the direction upper limit circuit board 10 for being directed toward optical window 5.
The size of cavity 42 can be protruded by limiting circuit board 10 by blocking surface 91 and convex block 72, and circuit board 10 and setting exist
Optical detector 3 in first vector 7 can keep safe distance with the equal components of the lens array 2 in cavity 42.
Optionally, the front end face of convex block 72 offsets with blocking surface 91, and the front end face of convex block 72 is set beyond optical detector 3
It sets.Second support 9 in cavity 42 forms blocking surface 91 towards the end face of open end 412.
When convex block 72 and blocking surface 91 offset, at least the front end face with convex block 72 is super between convex block 72 and blocking surface 91
The distance of light detection device 3.On the one hand, when circuit board 10 and optical detector 3 being avoided to be inserted into cavity 42, optical detector 3 and carrying
Focusing lens array 2 on Second support 9 touches.On the other hand, position adjustment space is provided for focusing lens array 2, had
Effect couples directional light b on optical detector 3.
In one embodiment, shell further includes the sealing block 43 at open end 412, and the setting of sealing block 43 is being covered
Sealing block 43 between plate 44 and circuit board 10.When circuit board 10 is inserted in place, 10 He of circuit board is blocked using sealing block 43
Gap between cover board 44, seal cavity 42 avoid circuit board 10 from deviating from from cavity 42, and play the work of dustproof and waterproof
With.Wherein, the material and shape of sealing block 43 are not specifically limited, such as adhesive solidifies formed blob of viscose etc., as long as
Realize the sealing to cavity 42.
Second aspect, the embodiment of the present application provide a kind of optical module, which includes what above-mentioned first aspect provided
Optical receiver.Optionally, which further includes optical transmitting set.
Those skilled in the art will readily occur to its of the application after considering specification and practicing the invention invented here
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the application, these modifications, purposes or
The common knowledge in the art that person's adaptive change follows the general principle of the application and do not invent including the application
Or conventional techniques.The description and examples are only to be considered as illustrative, and the true scope and spirit of the application are wanted by right
It asks and points out.
Claims (10)
1. a kind of optical receiver, which is characterized in that the optical receiver includes: that light multiplexing component, focusing lens array and light are visited
Survey device；
A branch of incident light is divided at least two beam directional lights by the light multiplexing component；
At least two beam parallel light focusings that the focusing lens array respectively separates the light multiplexing component are that at least two beams converge
Optically focused；
The optical detector receives the converged light.
2. optical receiver according to claim 1, which is characterized in that the optical receiver includes the pipe for being formed with cavity
Shell, the light multiplexing component and the focusing lens array are contained in the cavity；
The optical receiver further includes the circuit board for being equipped with operational amplifier, the optical detector and the operational amplifier phase
Even, and be arranged in a manner of perpendicular to the directional light, and the optical detector and the circuit board be removably inserted into it is described
Cavity.
3. optical receiver according to claim 2, which is characterized in that the bottom surface pad of the circuit board is equipped with first vector；
The first vector includes the front end face towards the cavity, and the optical detector is arranged on the front end face.
4. optical receiver according to claim 3, which is characterized in that the optical detector is fixed on optical detector carrier
On, the optical detector carrier is connected with the front end face；
It include being formed in the conductor on surface on the optical detector carrier, the conductor is for connecting the optical detector and described
Operational amplifier.
5. optical receiver according to claim 3, which is characterized in that the first vector includes from the front end face direction
The convex block of the inside cavity protrusion；
Blocking surface is provided in the cavity, the blocking surface offsets with the convex block, limits in the direction for going deep into the cavity
The circuit board.
6. optical receiver according to claim 5, which is characterized in that be provided with the carrying light multiplexing group in the cavity
The Second support of part and the focusing lens array, the Second support include the blocking surface.
7. optical receiver according to claim 2, which is characterized in that the shell includes:
Shell, the shell include open end, and open sides that are adjacent with the open end and extending in different directions；
Cover board, the cover board are connected with the shell and block the open sides；And
Sealing block, the sealing block is arranged at the open end, between the cover board and the circuit board.
8. optical receiver according to claim 2, which is characterized in that being provided in one end of the shell makes the incidence
Light emission enters the optical window of the cavity, and the light multiplexing component corresponds to the optical window setting.
9. optical receiver according to claim 8, which is characterized in that the optical receiver further includes being connected with the shell
Fiber adapter, the fiber adapter corresponds to optical window setting outside the shell.
10. a kind of optical module, which is characterized in that including optical receiver according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910017021.7A CN109683333B (en) | 2019-01-08 | 2019-01-08 | Optical receiver and optical module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910017021.7A CN109683333B (en) | 2019-01-08 | 2019-01-08 | Optical receiver and optical module |
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| Publication Number | Publication Date |
|---|---|
| CN109683333A true CN109683333A (en) | 2019-04-26 |
| CN109683333B CN109683333B (en) | 2021-12-24 |
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ID=66192200
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910017021.7A Active CN109683333B (en) | 2019-01-08 | 2019-01-08 | Optical receiver and optical module |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021037085A1 (en) * | 2019-08-30 | 2021-03-04 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335691A (en) * | 2000-07-27 | 2002-02-13 | 富士康(昆山)电脑接插件有限公司 | Optoelectronic transceiver module |
| JP2006189469A (en) * | 2004-12-28 | 2006-07-20 | Sony Corp | Connector for signal transmission, and optical transceiver |
| CN105474062A (en) * | 2014-06-10 | 2016-04-06 | 住友电气工业株式会社 | Optical receiver module and process to assemble optical receiver module |
| CN208255479U (en) * | 2018-06-06 | 2018-12-18 | 深圳市极致兴通科技有限公司 | A kind of light-receiving component |
-
2019
- 2019-01-08 CN CN201910017021.7A patent/CN109683333B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1335691A (en) * | 2000-07-27 | 2002-02-13 | 富士康(昆山)电脑接插件有限公司 | Optoelectronic transceiver module |
| JP2006189469A (en) * | 2004-12-28 | 2006-07-20 | Sony Corp | Connector for signal transmission, and optical transceiver |
| CN105474062A (en) * | 2014-06-10 | 2016-04-06 | 住友电气工业株式会社 | Optical receiver module and process to assemble optical receiver module |
| CN208255479U (en) * | 2018-06-06 | 2018-12-18 | 深圳市极致兴通科技有限公司 | A kind of light-receiving component |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2021037085A1 (en) * | 2019-08-30 | 2021-03-04 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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| Publication number | Publication date |
|---|---|
| CN109683333B (en) | 2021-12-24 |
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