CN103197385B - Optical module and light path coupling method thereof - Google Patents
Optical module and light path coupling method thereof Download PDFInfo
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- CN103197385B CN103197385B CN201310118613.0A CN201310118613A CN103197385B CN 103197385 B CN103197385 B CN 103197385B CN 201310118613 A CN201310118613 A CN 201310118613A CN 103197385 B CN103197385 B CN 103197385B
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Abstract
The invention discloses an optical module and a light path coupling method of the optical module. The optical module comprises a printed circuit board (PCB), an optical element arranged on the PCB, an optical fiber which is coupled with the optical element through an optical lens module. The optical module further comprises a fixed support frame, a lens support frame which is detachably connected with the fixed support frame and an optical fiber support frame which is detachably connected with the lens support frame. The fixed support frame is fixed on the PCB. The optical lens module is arranged on the lens support frame. The optical fiber is arranged on the optical fiber support frame. The optical element is arranged between the fixed support frame and the lens support frame. At least two positioning parts are arranged on the fixed support frame. Corresponding positioning parts which are matched with the positioning parts on the fixed support frame for achieving detachable connection are arranged on the lens support frame. In addition, by means of mechanical fixation of multiple support frames, coupling of a light path is achieved, procedures are simplified, coupling cost is reduced and uniformity and accuracy of coupling are improved.
Description
Technical field
The present invention relates to optical communication technique, specifically, relate to a kind of light path coupling process of optical module and adopt the method to carry out the optical module be coupled.
Background technology
In existing optical communication technique, light signal, by the carrier as information, carries out high speed, long-time, reliable information transmission.As the core component of optical communication field, in optical module, the coupling effect of optical element and transmission path (optical fiber) greatly affects the quality of light signal strength and signal, and then becomes one of key factor affecting information transmission.
At present, in optical module, optical element and Transmission Fibers realize the method that light path is coupled and are divided into active coupling and passive coupling two kinds.
The process of active coupling process is: be fixed on pcb board using the laser instrument as light source, then laser instrument is controlled luminous, use coupling mechanism adjustment as the locus changing the optical lens module that light transmission path device uses, and the light intensity in optical fiber is coupled in detection by this module, when the light intensity that optical fiber sends reaches maximal value, determine that lens position is now optimum coupling position.
The process of method is: first fixed laser, then respectively laser instrument and optical lens module are photographed with two video cameras, by image transmission in PC, the position of adjustment lens, when the center of circle of two images overlaps, determine that lens position is now optimum coupling position.
If adopt active coupling scheme, need to use dedicated coupler, and if adopt passive coupling mode, need use two video cameras, when causing coupling, device therefor price is higher, and operation is more.And, no matter be active coupling scheme or passive coupling mode, after finding optimum coupling position, all need first to fix with UV glue.UV glue be a kind of can quick-setting glue when Ultraviolet radiation, but its intensity is lower, next also needs to carry out hot setting with black glue.In manual operation process before black adhesive curing, fix owing to forming the machinery lacking high strength between the laser instrument of light path, optical lens module and optical fiber, the as easy as rolling off a log optical lens module that causes departs from coupling position, thus causes light path coupling effect to be deteriorated.
Summary of the invention
An object of the present invention is the light path coupling process providing a kind of optical module, and the method, fixedly being realized the coupling of light path by the machinery between multiple support, simplifies operation, reduces coupling cost, improves coupling consistance and accuracy.
For achieving the above object, light path coupling process provided by the present invention adopts following technical proposals to be achieved:
A light path coupling process for optical module, is characterized in that, described method comprises the steps:
A, fixedly there is on the pcb board of optical module the fixed support of at least two positioning elements;
B, the center obtaining wherein two described two positioning elements and the line of centres thereof;
C, with the center of the described line of centres and positioning element described at least one for reference position, according to the center of optical element in known location relation determination light path;
Described optical element to be placed on pcb board and fixing by d, the center determined according to step c;
E, will there is the corresponding positioning element matched to described support bracket fastened positioning element and the lens carrier being provided with optical lens module is connected by described positioning element and described corresponding positioning element with described fixed support, make the first optical lens module one_to_one corresponding that described optical element is corresponding with described lens carrier, and fixed lens support;
F, to connect corresponding with described lens carrier for the structure of fiber_optic being provided with optical fiber, make the second optical lens module one_to_one corresponding that described optical fiber is corresponding with described lens carrier, and fixed fiber support;
Wherein, described known location is closed is the lens center in the first optical lens module described in described lens carrier and the position relationship between the center of described corresponding positioning element and the corresponding positioning element line of centres.
Light path coupling process as above, for simplifying coupling process further, improving Position location accuracy, in described lens carrier, lens center in described first optical lens module is positioned on the line of centres of described corresponding positioning element, in described step c, the center of described optical element is positioned on the line of centres of the described positioning element on described fixed support.
Light path coupling process as above, for improving mechanical connection steadiness, described corresponding positioning element on described lens carrier lays respectively at the left and right sides of described first optical lens module, described positioning element on described fixed support is positioned at the described support bracket fastened left and right sides, and described optical element is between described positioning element.
Present invention also offers a kind of optical module adopting above-mentioned light path coupling process to realize coupling, this optical module has the high and accuracy of higher coupling consistance.
Specifically, a kind of optical module, comprise pcb board, be arranged on the optical element on pcb board, the optical fiber be coupled by optical lens module with optical element, described optical module also includes fixed support, with the detachable lens carrier that is connected of fixed support and the structure of fiber_optic that be connected detachable with lens carrier, described fixed support is fixed on described pcb board, described optical lens module is arranged on described lens carrier, described optical fiber is arranged on described structure of fiber_optic, described optical element is between described fixed support and described lens carrier, described fixed support is provided with at least two positioning elements, described lens carrier is provided with the corresponding positioning element matching to the positioning element on described fixed support to realize removably connecting.
Optical module as above, for increasing fixing glue contact area, improving fixed performance, described fixed support at least offers some breach in its left and right sides edge.
Preferably, described support bracket fastened left and right sides edge all offers multiple interrupted, equally distributed breach.
Optical module as above, produces projection for avoiding unnecessary glue to penetrate into frame bottom, bottom described fixed support, near described gap position place, offer holding tank.
Optical module as above, for convenience of firmly fixing lens carrier, described lens carrier offers some hole for injecting glue, and described hole for injecting glue top is step trough, bottom is hydraucone, and the bottom end vertical transition of described step trough is to the osculum on described hydraucone top.
Optical module as above, fixing for convenience of structure of fiber_optic, described structure of fiber_optic part is positioned on described fixed support, the side that described structure of fiber_optic contacts with described fixed support offers structure of fiber_optic groove, and on described fixed support, corresponding described structure of fiber_optic groove offers fixed support groove.
Further, be strengthen fixed performance, the side edge of described structure of fiber_optic described lens carrier dorsad offers some breach.
Compared with prior art, advantage of the present invention and good effect are: when adopting light path coupling process of the present invention to carry out the light path coupling of optical module, can determine optimum coupling position, simplifying coupling procedure, reducing coupling cost by simply measuring; And whole coupling process only needs simple Automatic manual transmission process, coupling speed is fast; In addition, owing to being fixed mechanically between each light path part, constant intensity is high, relative position firm, the problem that people causes coupling position to change for maloperation can not be there is, improve consistance and the accuracy of light path coupling, and then contribute to the lifting of optical module performance.
After reading the specific embodiment of the present invention by reference to the accompanying drawings, the other features and advantages of the invention will become clearly.
Accompanying drawing explanation
Fig. 1 is the light path coupled structure schematic diagram of an optical module of the present invention embodiment;
Fig. 2 is the detonation configuration schematic diagram of Fig. 1;
Fig. 3 is support bracket fastened Facad structure schematic diagram in Fig. 1;
Fig. 4 is support bracket fastened structure schematic diagram in Fig. 1;
Fig. 5 is the perspective view of lens carrier in Fig. 1;
Fig. 6 is the cross-sectional view of hole for injecting glue in Fig. 5;
Fig. 7 is the perspective view of structure of fiber_optic in Fig. 1;
Fig. 8 is the transmitting light path principle figure of the optical module of Fig. 1 embodiment;
Fig. 9 is the receiving light path schematic diagram of the optical module of Fig. 1 embodiment;
Figure 10 is the method flow diagram that Fig. 1 optical module carries out light path coupling.
Embodiment
Below in conjunction with the drawings and specific embodiments, technical scheme of the present invention is described in further detail.
Please refer to an embodiment of Fig. 1 and optical module of the present invention illustrated in fig. 2, wherein, Fig. 1 is the light path coupled structure schematic diagram of this embodiment, and Fig. 2 is the detonation configuration schematic diagram of Fig. 1.
Anticipate as shown in Figures 1 and 2, the fixed support Facad structure schematic diagram of composition graphs 3 illustrated simultaneously, the optical module of this embodiment includes pcb board 1, pcb board 1 is fixed with a fixed support 2, fixed support 2 is provided with two pilot holes 21 and 22 in left and right, between pilot hole 21 and 22, be placed with the laser array 5 as optical module light-emitting component and the photodetector array 6 receiving optical element, laser array 5 and photodetector array 6 are electrically connected with the transmitter circuitry 7 be arranged on pcb board 1 and receiver circuit 8 respectively.The top of laser array 5 and photodetector array 6 is provided with lens carrier 3, and lens carrier 3 is connected with fixed support 2 is detachable.The optical module of this embodiment also includes the structure of fiber_optic 4 that be connected detachable with lens carrier 3, structure of fiber_optic 4 is provided with fibre ribbon array 42, this fibre ribbon array 42 is coupled with the optical lens module in laser array 5 and photodetector array 6 scioptics support 3, thus realizes the light path coupling of whole optical module.
Shown in the front view (FV) of structural reference Fig. 3 of fixed support 2 and the back view of Fig. 4, anticipate as shown in Figure 3, Figure 4, simultaneously composition graphs 1 and illustrated in Figure 2, on fixed support 2 in this embodiment optical module except being provided with two, left and right pilot hole 21 and 22 that laser array 5 and photodetector array 6 are positioned, all offer multiple breach 23 in its left and right sides edge, and multiple breach is interrupted, the edge that is evenly distributed on corresponding side.In addition, a breach 23 is also offered at fixed support 2 relative to the side of pilot hole 21 and 22.By offering these breach on fixed support 2, when using glue to be fixed on pcb board 1 by fixed support 2, the contact area of glue and fixed support 2 can be increased, thus be conducive to fixed support 2 to fixedly secure on pcb board 1.Bottom fixed support 2, the gap position of the left and right sides, close corresponding side offers holding tank 24 respectively, can be used for holding and penetrate into glue bottom fixed support 2 from breach 23, make fixed support 2 that shift in position occur to prevent the infiltration because of glue from producing projection bottom fixed support 2.In addition, for convenience of fixed fiber support 4, inside the side that fixed support 2 contacts with structure of fiber_optic 4, groove 25 is also offered.This groove 25 and structure of fiber_optic 4 related structure coordinate and function please refer to description below.
The structure of lens carrier 3 please refer to shown in Fig. 5.As schematically shown in Figure 5, lens carrier 3 is provided with optical lens module, specifically, optical lens module includes and is positioned at bottom lens carrier 3, corresponding with laser array 5 and photodetector array 6 the first optical lens array (this is not shown, can with reference to shown in figure 8 and Fig. 9) and is arranged in lens carrier 3 front end, second optical lens array 33 corresponding with the fibre ribbon array 42 of structure of fiber_optic 4.Lens carrier 3 is respectively arranged with a reference column 32(in the second optical lens array both sides and there is shown one of them, another is symmetrical arranged with it), this reference column 32 is inserted in the pilot hole 21 on fixed support 2 respectively, thus realizes lens carrier 3 and be connected with the detachable of fixed support 2.And, by positioning laser array 5 and photodetector array 6, can make after lens carrier 3 and fixed support 2 are connected and fixed, the second optical lens array in lens carrier 3 just with the laser array 5 between pilot hole 21 and photodetector array 6 one_to_one corresponding and realize accurate coupling, concrete methods of realizing describes with reference to flow process below.
After lens carrier 3 is connected with fixed support 2, fixedly securing of lens 3 can't be ensured.For this reason, lens carrier 3 is also offered two hole for injecting glue 36, be used for injecting glue and lens carrier 3 being fixed on pcb board 1.The cross-section structure of hole for injecting glue 36 as shown in Figure 6.Specifically, as schematically shown in Figure 6, hole for injecting glue top is step trough 361, and bottom is hydraucone 363, and the bottom end of step trough 361 is connected by the osculum of vertical joints 362 with hydraucone 363 top.By adopting the hole for injecting glue 36 of this structure, the hydraucone 363 of bottom can be utilized to increase the contact area of glue and lens carrier 3, contribute to lens carrier 3 firmly to fix; And, by arranging the step trough 361 on top, make glue be not easy ooze out and trickle at lens carrier 3 on the surface.In addition, middle vertical joints 362 can effectively be avoided rocking adding lens carrier 3 in glue fixation procedure, thus adds the fastness of lens carrier 3.
In addition, for realizing being connected and fixed of structure of fiber_optic 4, the both sides, front end of lens carrier 3 are provided with two joint pins 34 and 35, these two joint pins coordinate to the corresponding connecting hole on structure of fiber_optic 4, to be connected with lens carrier 3 by structure of fiber_optic 4, concrete syndeton is incorporated by reference to the structure of the structure of fiber_optic 4 shown in Fig. 7.
The structure of the structure of fiber_optic 4 gone out as shown in Figure 7, in conjunction with illustrated in Figure 1, the structure of fiber_optic 4 of this embodiment is provided with multiple optic fibre hole 41, and fibre ribbon array 42 one end passes from corresponding optic fibre hole 41, and then carries out accurate optically-coupled with the second optical lens array 33 on lens carrier 3.Two connecting holes 43 and 44 are offered respectively at the two ends of optic fibre hole 41 on structure of fiber_optic 4, specifically, two joint pins 34 and 35 of lens carrier 3 can be inserted in connecting hole 43 and 44 respectively, thus structure of fiber_optic 4 and lens carrier 3 are connected and fixed.After structure of fiber_optic 4 and lens carrier 3 being connected and fixed, structure of fiber_optic 4 part is positioned on fixed support 2.Corresponding with the groove 25 on fixed support 2, the outer side edges of structure of fiber_optic 4 also offers groove 46, and this groove 46 adds glue hole by being combined to form with the groove 25 on fixed support 2.After structure of fiber_optic 4 fix in position, add in glue hole toward this combined type and add glue, structure of fiber_optic 4 and fixed support 2 to be fixed further, realize fixedly securing of structure of fiber_optic 4.In addition, fix for ease of structure of fiber_optic 4 and pcb board 1 are carried out adding glue, structure of fiber_optic 4 dorsad lens carrier 3 side, also namely the opposite side place of connecting hole 43 and 44 offers multiple breach 45 dorsad, the contact area of glue and structure of fiber_optic 4 during to increase injecting glue, strengthens constant intensity.
In this embodiment, two reference columns 32 on lens carrier 3 are positioned at the left and right sides of the first optical lens array, accordingly, two pilot holes 21 and 22 on fixed support 2 are positioned at the left and right sides of fixed support 2, lens carrier 3 can be made with fixed support 2 to be connected ground more firm, improve mechanical connection stability.After this syndeton of employing, laser array 5 and photodetector 6 will between two pilot holes 21.This structure is only preferred embodiment, but not limits.If connective stability can ensure, then also can change the position of reference column 32 on lens carrier 3, correspondingly change the position of pilot hole 21 on fixed support 2 simultaneously.Such as, two reference columns 32 are all positioned at the same side of the first optical lens array, and pilot hole 21 is corresponding with reference column 32 position with 22.When adopting fixed support 2 and the lens carrier 3 of this structure, laser array 5 and photodetector 6 will be positioned at the same side of two reference columns 32, the position corresponding with the first optical lens array.
What needs further illustrated is, in this embodiment, have employed and mode pilot hole, lens carrier 3 being arranged reference column is set on fixed support 2 is connected with the detachable of lens carrier 3 to realize fixed support 2, but be not limited to this, also can reference column be set on fixed support 2, arrange the modes such as pilot hole to realize on lens carrier 3.Same, detachable between lens carrier 3 with structure of fiber_optic 4 is connected the mode being also not limited to and adopting and to arrange joint pin on lens carrier 3, arrange connecting hole on structure of fiber_optic 4.And the optical element in this embodiment is array, optical lens module is optical lens array, corresponding optical fiber is also fibre ribbon array, but is not defined as array, also can be single optical element, single lens and simple optical fiber.
In addition, the reference column on the pilot hole on fixed support 2 and lens carrier 3 is also not limited to two, can also be more, when having more, can only select wherein two use.
The light path principle figure of the optical module of this embodiment please refer to shown in Fig. 8 and Fig. 9.
The transmitting light path principle figure of optical module as schematically shown in Figure 8, is arranged in the laser array 5(figure on pcb board 1 laser instrument shown in array) as light-emitting component, be electrically connected by gold thread with transmitter circuitry 7.Armed electric signal is modulated on the laser instrument in laser array 5 through transmitter circuitry 7, and then launches the light signal corresponding with electric signal.This light signal incides on the corresponding optical lens in the first optical lens array 31 in lens carrier 3, change final the second optical lens array 31 on lens carrier 3 after directional light into through optical lens transmit out and be coupled in the optical fiber in fibre ribbon array 42, and then transmit outward through optical fiber.
The receiving light path principle of optical module as shown in Figure 9.Specifically, be arranged in the photodetector array 6(figure on pcb board 1 photodetector shown in array) as receiving optical element, be electrically connected by gold thread with receiver circuit 8.Outside light signal incides in optical module through fibre ribbon array 42, first incide in the second optical lens array 33 corresponding with fibre ribbon array 42, change after directional light finally focusing on photodetector array 6 through the first optical lens array 31 through optical lens into.Photodetector array 6 change received light signal into electric signal and through receiver circuit 8 carry out limitting the process such as to put after export the electric signal corresponding with light signal, use for rear level system.
For the optical module of said structure, its process of carrying out light path coupling can with reference to the method flow diagram shown in Figure 10.
As shown in Figure 10, composition graphs 1 is to illustrated in Figure 9 simultaneously, and the step of optical module being carried out to light path coupling is as follows:
Step 101: flow process starts.
Step 102: fixed support 2 is fixed on pcb board 1.
The fixed support 2 of structure shown in Fig. 3 and Fig. 4 is placed on the correct position place of pcb board 1, then, adds glue at breach 23 place of fixed support 2 both sides, and with high-temperature baking 2 hours of 120 °.
Step 103: determine the setting position of optical element on pcb board.
Obtain the center of two pilot holes 21 and 22 on fixed support 2, and obtain the line between Liang Ge center.If pilot hole is circular, Ze Qi center is its center of circle.Because the size of fixed support 2 is determined, after determining the position of fixed support 2 on pcb board 1, the center of two pilot hole 21 and 22 is also easy to get.After acquisition Liang Ge center, then obtain the line of centres between Liang Ge center.Then, with the center of this line of centres and wherein one or two positioning element for reference position, according to the center of optical element in known location relation determination light path.Here known location relation refers to the position relationship between the center of the lens center in the first optical lens module 31 corresponding with optical element in lens carrier 3 and two reference columns 32 on two lens carriers 3 and the reference column line of centres.Concrete defining method is: in the process of processing fixed support 2 and lens carrier 3, two reference column 32 one_to_one corresponding on two pilot holes 21 and 22 on fixed support 2 and lens carrier 3, the line of centres of two pilot holes is equal with the line of centres length of two reference columns, and the position relationship between the center of the middle lens of optical lens module corresponding with optical element in lens carrier 3 (as the first optical lens array) and two reference columns 32 is also determined.Such as, on the line of centres of lens center between two reference columns 32, or be positioned on the extended line of two reference column 32 lines of centres, or there is certain distance etc. in vertical direction with the line of centres of two reference columns 32.Because the accurate light path coupling position of optical element and lens is that center of optical element and lens center coincide together, and again because the pilot hole center on fixed support 2 and the reference column center on lens carrier 3 are one to one, so, after the center obtaining pilot hole 21 and 22 and the line of centres, with the center of this line of centres and wherein one or two pilot hole for reference position or benchmark, determine the concrete center of optical element according to known location relation.With the optical module structure of Fig. 1 embodiment, lens center in the first optical lens array 31 in lens carrier 3 is between two reference columns 32 and on the line of centres of two reference columns 32, then can obtain the distance between certain lens center and any one reference column center, this distance is exactly a known location Relation Parameters.Then, with pilot hole corresponding with this reference column on fixed support 2 for starting point, the pilot hole line of centres measures identical distance, then utilize this distance determined point on the line of centres to be the center of optical element to be placed.By the lens center in the first optical lens array 31 in lens carrier 3 is placed on the line of centres of two reference column 32 supports, only need the center line of centres of the horizontal range of use one between lens center and reference column between pilot hole 21 and 22 being determined optical element, the step determining center in coupling process has been lacked in letter, is also conducive to the accuracy improving location.In this embodiment, optical element to be placed is laser array 5 and photodetector array 6, has included multiple optical element in each array.Accordingly, corresponding with it in lens carrier 3 optical lens module is the optical lens array including multiple lens.Now, when determining the position of laser array 5 or photoelectronic detecting array 6, can only select in optical lens array lens to measure the distance between its center and reference column center, then determine a corresponding laser instrument or the position of photodetector according to this distance, also process as a unit by array of optical elements.
Step 104: optical element is fixed on pcb board.
After the center determining optical element to be placed, optical element is in place, uses elargol to toast about 45 minutes at 100 DEG C, be fixed on pcb board 1.
Step 105: fixed lens support.
After fixing optical element, the reference column 32 of lens carrier 3 is inserted in the corresponding pilot hole 21 and 22 of fixed support 2, realizes being connected and fixed of lens carrier 3 and fixed support 2, make optical element and the first optical lens array one_to_one corresponding simultaneously.Then, in the hole for injecting glue 36 of lens carrier 3, inject glue, lens carrier 3 is fixed on pcb board 1.
Step 106: fixed fiber support.
After lens carrier 2 fix in position, fixed support 2 is placed structure of fiber_optic 4, and be inserted into corresponding respectively for the connecting hole 43 and 44 of structure of fiber_optic 4 on the joint pin 34 and 35 of lens carrier 3, realize being connected and fixed of structure of fiber_optic 4 and lens carrier 3.When connection puts in place, the groove 46 on structure of fiber_optic 4 is formed docking with the groove 25 on fixed support 2 and adds glue hole.Then, inject glue toward adding in glue hole, structure of fiber_optic 4 is fixed on fixed support 2.For being fixed structure of fiber_optic 4 further, can also select to add glue, to be fixed on pcb board 1 by structure of fiber_optic 4 at breach 45 place of structure of fiber_optic 4.
Step 107: the mechanical connection completing light path each several part is fixed, the light path simultaneously realizing each several part is accurately coupled, and flow process terminates.
When utilizing said method to carry out the light path coupling of optical module, can determine optimum coupling position by simply measuring, coupling procedure is few, and coupling cost is low.And whole coupling process only needs simple Automatic manual transmission process, coupling speed is fast.And, owing to being first connected and fixed mechanically between each light path part, constant intensity is high, relative position firm, the problem that people causes coupling position to change for maloperation can not be there is in the process adding adhesive curing, improve consistance and the accuracy of light path coupling, and then contribute to the lifting of optical module performance.
Above embodiment only in order to technical scheme of the present invention to be described, but not is limited; Although with reference to previous embodiment to invention has been detailed description, for the person of ordinary skill of the art, still can modify to the technical scheme described in previous embodiment, or equivalent replacement is carried out to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the present invention's technical scheme required for protection.
Claims (3)
1. a light path coupling process for optical module, is characterized in that, described method comprises the steps:
A, fixedly there is on the pcb board of optical module the fixed support of at least two positioning elements;
B, the center obtaining wherein two described positioning elements and the line of centres thereof;
C, with the center of the described line of centres and positioning element described at least one for reference position, according to the center of optical element in known location relation determination light path;
Described optical element to be placed on pcb board and fixing by d, the center determined according to step c;
E, will there is the corresponding positioning element matched to described support bracket fastened positioning element and the lens carrier being provided with optical lens module is connected by described positioning element and described corresponding positioning element with described fixed support, make the first optical lens module one_to_one corresponding that described optical element is corresponding with described lens carrier, and fixed lens support;
F, to connect corresponding with described lens carrier for the structure of fiber_optic being provided with optical fiber, make the second optical lens module one_to_one corresponding that described optical fiber is corresponding with described lens carrier, and fixed fiber support;
Wherein, described known location is closed is the lens center in the first optical lens module described in described lens carrier and the position relationship between the center of described corresponding positioning element and the line of centres thereof.
2. light path coupling process according to claim 1, it is characterized in that, in described lens carrier, lens center in described first optical lens module is positioned on the line of centres of described corresponding positioning element, in described step c, the center of described optical element is positioned on the line of centres of the described positioning element on described fixed support.
3. light path coupling process according to claim 1 and 2, it is characterized in that, described corresponding positioning element on described lens carrier lays respectively at the left and right sides of described first optical lens module, described positioning element on described fixed support is positioned at the described support bracket fastened left and right sides, and described optical element is between described positioning element.
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| CN201410614695.2A CN104280828B (en) | 2013-04-08 | 2013-04-08 | Optical module |
| CN201310118613.0A CN103197385B (en) | 2013-04-08 | 2013-04-08 | Optical module and light path coupling method thereof |
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| CN103885139B (en) * | 2014-03-12 | 2016-03-16 | 青岛海信宽带多媒体技术有限公司 | A kind of optical fiber component |
| CN105929492A (en) * | 2016-07-01 | 2016-09-07 | 青岛海信宽带多媒体技术有限公司 | Optical module |
| CN108845393A (en) * | 2018-06-27 | 2018-11-20 | 东莞市蓝光塑胶模具有限公司 | A kind of optical fiber connector |
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| JP3741911B2 (en) * | 1999-10-19 | 2006-02-01 | 日本オプネクスト株式会社 | Optical element array module and manufacturing method thereof |
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| CN102116906A (en) * | 2010-01-04 | 2011-07-06 | 鸿富锦精密工业（深圳）有限公司 | Optic fiber coupling connector and optic transmission device |
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