CN204374487U - The multidirectional optical assembly of a kind of single fiber - Google Patents
The multidirectional optical assembly of a kind of single fiber Download PDFInfo
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- CN204374487U CN204374487U CN201420853753.2U CN201420853753U CN204374487U CN 204374487 U CN204374487 U CN 204374487U CN 201420853753 U CN201420853753 U CN 201420853753U CN 204374487 U CN204374487 U CN 204374487U
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Abstract
The utility model discloses the multidirectional optical assembly of a kind of single fiber, comprise side with light hole housing, be arranged on hull outside and aim at the optical interface parts of light hole, the pedestal be fixed in housing, be arranged at laser receiving/transmitting device on described pedestal and die terminals lens; Laser receiving/transmitting device is detector chip and auxiliary circuit thereof or chip of laser and auxiliary circuit thereof, optical axis and each described laser receiving/transmitting device of described die terminals lens are coaxially arranged, be provided with beam splitter between described die terminals lens, described light hole and optical interface element coaxial are arranged; Described optical interface parts comprise optical fiber end lens and optical fiber sleeve; Described optical fiber end lens are between optical fiber sleeve one end and the light hole of housing; Described beam splitter comprises point optical channel and is arranged on the optical filter in point optical channel; Described pedestal is provided with energising interface.The utility model has the advantages that high, highly sensitive, the convenient plug of coupling efficiency, can multidirectional leaded light and be easy to automated manufacturing.
Description
Technical field
The utility model relate to the multidirectional optical assembly of a kind of single fiber, belongs to optical element field.
Background technology
According to current known component structure, general optical assembly is that chip and optical element are carried out coaxial packaging, i.e. TO encapsulation (Transistor-Outline), TO encapsulation is coupled with optical fiber, utilize metal parts, by laser bonding or gluing, TO encapsulation is fixed together with optical fiber, makes optical assembly.Following shortcoming is there is in this assembly:
(1) TO for the BK7 glass sphere lens of diameter 1.5 millimeters encapsulates, and the laser beam that chip of laser is launched is coupled in optical fiber, and namely launch coupling, coupling efficiency is low, and general efficiency is lower than 15%;
(2) the Optical Fiber Transmission laser beam of coming, focus on the photosurface of detector chip, namely receive coupling, minimum light spot diameter reaches 50 microns, is unfavorable for very much coupling;
(3) TO encapsulating structure is complicated, and cost is high, and the difficulty of automated production is large, cost of investment is also very high;
(4) position between chip and optical element is determined by the size of TO base, TO pipe cap and substrate, regulates difficulty large in real time, causes the further reduction of coupling efficiency, the increase of coupling technique difficulty;
(5) mount structure of TO encapsulation, make client use difficulty, the difficulty of automatic welding is large;
In addition, in existing product, only have the optical assembly of single direction can not meet industrial needs far away, such as only Emission Lasers light beam or the optical assembly that only receives laser beam can not meet the needs of the demand of multi-direction transmitting-receiving laser beam, cause very big inconvenience to use.
Utility model content
Technical problem to be solved in the utility model there is provided high, highly sensitive, the convenient plug of a kind of coupling efficiency, can multidirectional leaded light and be easy to the multidirectional optical assembly of a kind of single fiber of automated manufacturing.
The technical solution of the utility model is as follows:
The multidirectional optical assembly of a kind of single fiber, it comprise side with light hole housing, be arranged on hull outside and aim at the optical interface parts of light hole, the pedestal be fixed in housing, be arranged at laser receiving/transmitting device on described pedestal and die terminals lens;
Described laser receiving/transmitting device is detector chip and auxiliary circuit thereof or chip of laser and auxiliary circuit thereof, described laser receiving/transmitting device at least 2; The quantity of described die terminals lens and position and described detector chip or chip of laser one_to_one corresponding, before the photosurface that described die terminals lens are positioned at described detector chip or chip of laser, and the optical axis of described die terminals lens and the photosurface of described detector chip or chip of laser coaxially corresponding;
Optical axis and each described laser receiving/transmitting device of described die terminals lens are coaxially arranged, and be provided with beam splitter between described die terminals lens, described light hole and optical interface element coaxial are arranged;
Described optical interface parts comprise optical fiber end lens and optical fiber sleeve; Described optical fiber end lens are between optical fiber sleeve one end and the light hole of housing;
Described beam splitter comprises point optical channel and is arranged on the optical filter in point optical channel; Described point of optical channel is provided with passway, and described passway aims at optical axis and the light hole of each described die terminals lens respectively, described optical filter aligned with channel mouth slant setting, and its angle of inclination is be miter angle with passage horizontal direction; Described optical filter as required, carries out transmission or transmitting to the laser beam of specific wavelength;
Described pedestal comprises main basal base and die support pad, and described die support pad welds or is bonded on main basal base; Described laser receiving/transmitting device sinters or is bonded on described die support pad;
The die terminals lens of each described laser receiving/transmitting device and its Corresponding matching form one group, often spaced apart by electromagnetic shielding plate between group; One group, the die terminals lens of described detector chip and auxiliary circuit and its Corresponding matching, form laser pick-off chamber by electromagnetic shielding plate is spaced apart; One group, the die terminals lens of described chip of laser and auxiliary circuit and its Corresponding matching, form Laser emission chamber by electromagnetic shielding plate is spaced apart;
Described pedestal is also provided with energising interface, required electric connection is carried out by bonding line and via hole and described laser receiving/transmitting device, described energising interface stretches out housing and is communicated with extraneous electric signal, carries out airtight sealing between described energising interface and housing by fluid sealant;
A receipts/laser beam of described laser receiving/transmitting device is come in and gone out with point optical channel through the light hole of described housing.
Further, described die terminals lens and optical fiber end lens are globe lens, non-globe lens, plano-convex lens or lens pillar.
Further, described main basal base and die support pad are the metallized ceramic substrate of single-side/double-side, conventional pcb board, aluminum base PCB plate, copper base pcb board or the moulding including metal line.
Further, described energising interface is arranged on described main basal base, and described energising interface adopts wiring on main basal base to generate golden finger or row's pin.
Further, described optical fiber sleeve is plug-in optical fiber sleeve or tail-fiber type optical fiber sleeve;
When described optical fiber sleeve is plug-in optical fiber sleeve, described optical fiber sleeve comprises cover cylinder shell and the crannied lock pin cylinder of side opening; Be enclosed within described lock pin cylinder in sleeve housing, on described lock pin cylinder, the outer wall of crack offside welds with sleeve inner walls; Wire jumper lock pin, as external thing, is inside inserted in lock pin cylinder;
When described optical fiber sleeve is tail-fiber type optical fiber sleeve, described optical fiber sleeve comprises tail gum cover, tail optical fiber lock pin cylinder and wire jumper lock pin; Described wire jumper lock pin is welded in tail optical fiber lock pin cylinder, is arranged with tail gum cover outside described tail optical fiber lock pin cylinder.
Further, described optical interface parts also comprise the gear platform of middle with hole, coaxial seamless contact successively between the optical fiber three in described optical fiber end lens, gear platform and wire jumper lock pin.
Further, the multidirectional optical assembly of a kind of single fiber also comprises die terminals lens supports seat and optical fiber end lens supports seat; Described die terminals lens supports seat 2 and optical fiber end lens supports seat are equipped with light hole;
Described die terminals lens are fixed in die terminals lens supports seat, and described die terminals lens are by the welding of die terminals lens supports seat or be bonded on main basal base, and the optical axis of described die terminals lens is coaxially corresponding with the light hole on die terminals lens supports seat; The photosurface of described detector chip or chip of laser corresponding with the optical axis of die terminals lens;
Described optical fiber end lens are fixed in optical fiber end lens supports seat, described optical fiber end lens are by the welding of optical fiber end lens supports seat or be bonded between optical fiber sleeve one end and the light hole of housing, and the light hole on the light hole of described housing, optical fiber end lens supports seat, the optical axis of optical fiber end lens are corresponding with the light shaft coaxle of optical fiber in wire jumper lock pin.
Further, described gear platform is fixedly connected with optical fiber end lens supports seat, described optical fiber end lens supports seat is the cylindrical shell that one end is provided with V-type groove, described optical fiber end lens are closely embedded in wherein by the V-type groove of optical fiber end lens supports seat one end, and described optical fiber end lens are closely fixed in optical fiber end lens supports seat by described gear platform.
Further, airtight sealing is carried out by fluid sealant between described optical fiber end lens and optical fiber end lens supports seat.
Further, described laser receiving/transmitting device is the photodiode such as chip of laser and detector chip and auxiliary circuit thereof, and its auxiliary circuit is custom circuit.
Further, the receipts/optical fiber sent out in the light hole of laser beam successively on the optical axis of described die terminals lens, point optical channel, housing, the optical axis of optical fiber end lens, the hole of gear platform centre and wire jumper lock pin of described laser receiving/transmitting device is come in and gone out.
Further, the internal diameter under described lock pin cylinder state of nature is less than or equal to the diameter of wire jumper lock pin.
Further, described tail optical fiber lock pin cylinder side has crack, described wire jumper lock pin inserts in tail optical fiber lock pin cylinder, internal diameter under described tail optical fiber lock pin cylinder state of nature is less than or equal to the diameter of wire jumper lock pin, tail optical fiber is fixed in wire jumper lock pin by fluid sealant by the wire jumper lock pin in described tail optical fiber lock pin cylinder, and described tail optical fiber is a kind of form of optical fiber.
Further, described gear platform is fixedly connected with optical fiber end lens supports seat, by gear platform, described optical fiber end lens are closely fixed in the V-type groove of optical fiber end lens supports seat, sealed along optical fiber end rims of the lens by fluid sealant, except the effect of reinforcing, V-type groove is contacted outer edge to seal guarantee that moisture or other dusts do not enter housing by light hole and pollute or corrode the laser receiving/transmitting device of its inside, die terminals lens and other components and parts with optical fiber end lens, cause precision misalignment or serviceable life to shorten.Adopt fluid sealant to be fixed and to seal in the application to be all in order to achieve the above object and effect.
Further, described plug-in optical fiber sleeve also comprises liner ring, and described liner ring is socketed in outside optical fiber end lens supports seat, or is socketed in outside cylinder shell; Or liner ring and optical fiber end lens supports seat are made into one, or liner ring is made into integrally with cover cylinder shell, liner ring in use, for fixed light interface.
Further, described gear platform is between optical fiber end lens and wire jumper lock pin; The thickness of described gear platform determines the distance of fiber-to-fiber end lens in wire jumper lock pin.
Further, described optical fiber is divided into APC type and UPC type, and different according to the fiber type used, the shape of corresponding gear platform is also different, as long as but the hole at Dang Tai center and fiber optic hub aim at.
Further, when described laser receiving/transmitting device is chip of laser, described laser receiving/transmitting device also comprises back light detector, described back light detector sinters or is bonded on die support pad, described die support pad welds or is bonded on main basal base, the position of described back light detector can receive with its photosurface light that chip of laser sends out and be as the criterion into about the angle that 8 to 15 spend with chip of laser, the photosurface of described back light detector feeds back to the control device controlling light intensity after converting light intensity signal to electric signal after receiving the light that chip of laser sends out, this control device sends the light intensity that control signal regulates the transmitting of chip of laser.
Further, when described laser receiving/transmitting device is detector chip, described laser receiving/transmitting device also comprises trans-impedance amplifier chip and correlation filtering electric capacity, described trans-impedance amplifier chip and correlation filtering electric capacity sinter or are bonded on die support pad, described die support pad welds or is bonded on main basal base, amplifies rear output after described detector chip converts light signal to electric signal by trans-impedance amplifier chip to this electric signal.
Further, the direction of stretching out housing according to described row's pin can be row's pin of side row's pin, bottom row pin, upper row's pin or other different directions.
Further, described main basal base is coated with heat-conducting glue, is conducive to the inner each device of optical assembly and expands area of dissipation, accelerate radiating rate.
Further, the side plate in described housing is laid with fluid sealant, carries out air-tight packaging.
The beneficial effects of the utility model are:
(1) the utility model is by arranging beam splitter, the laser coupled that multiple chip of laser is launched is entered same optical fiber, or is coupled to respectively on multiple detector chip by the laser that same Optical Fiber Transmission is come, or the two mixing is carried out; And according to the position of laser receiving/transmitting device arranged and quantity, can be used as single fiber bi-directional transmitting-receiving optical assembly or the multidirectional transmitting-receiving optical assembly of single fiber, applied widely, easy to use.
(2) each laser receiving/transmitting device is isolated into independent laser pick-off chamber or Laser emission chamber by electromagnetic shielding plate by the utility model, avoids the electromagnetic signal produced mutually to disturb, guarantees precision and stability.
(3) the utility model adds optical fiber end lens in optical interface parts, forms secondary condensation, improves photopolymerization degree, improves and launches coupling efficiency and receive the sensitivity be coupled;
When laser receiving/transmitting device be chip of laser and auxiliary circuit time, the minimum light spot diameter launching coupling can be reduced, thus make the xsect of the optical fiber in wire jumper lock pin larger relative to this hot spot, more easily accurately receive the hot spot launching coupling, make to reduce the requirement of its installation site degree of accuracy in optical fiber sleeve, thus simplify optical fiber sleeve inner structure, save technical costs and time cost;
When laser receiving/transmitting device be detector chip and auxiliary circuit time, the minimum light spot diameter receiving coupling can be reduced, thus make the photosurface of detector chip larger relative to this hot spot, more easily accurately receive the hot spot receiving coupling.
(4) the utility model main basal base and die support pad are regular texture, be easy to paster and bonding in its plane, solve original TO base shape height projection different, the paster caused and the low and problem that is bad clamping in automated production process of bonding efficiency, by first being gone forward side by side on die support pad by the chip plane paster of laser receiving/transmitting device, line unit closes, again die support pad welded or be bonded on main basal base, make structure simple, easy for installation, be easy to automated production, realize full automation operation.
(5) optical interface parts of the present utility model are provided with the gear platform of middle with hole, guarantee that the position of wire jumper lock pin can not move forward, and the thickness that gear is lifted accurately can control the distance of wire jumper lock pin front end to optical fiber end lens.
(6) when the optical fiber sleeve adopted in the utility model is plug-in optical fiber cover, crack is offered in the side of its lock pin cylinder, its xsect is made to be C font, adopt resilient material to have certain elasticity, make its internal diameter adjustable, be convenient to put into wire jumper lock pin, be easy to assembling and change wire jumper lock pin, and lock pin cylinder internal diameter is in its natural state less than or equal to the diameter of wire jumper lock pin, closely can fixes after making wire jumper lock pin insert lock pin cylinder, and certain contact engaging and separating force can be kept;
The optical fiber sleeve that the utility model adopts is when being tail-fiber type optical fiber sleeve, one-body molded, and laser receiving/transmitting device and these two kinds of optical fiber sleeve types can independent assortments as required, adapt to multiple occasion.
(7) the utility model adopts multiple energising interface, such as golden finger or row's pin, applied widely, is convenient to promote the use of.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment 1.
Fig. 2 is the structural representation of the utility model embodiment 2.
Fig. 3 is the cut-open view of plug-in optical fiber sleeve in the utility model.
Fig. 4 is the cut-open view of tail-fiber type optical fiber sleeve in the utility model.
Fig. 5 is the one-piece construction schematic diagram of plug-in optical fiber sleeve in the utility model.
Fig. 6 is the position relationship schematic diagram keeping off platform in the utility model.
Fig. 7 is Laser emission chamber inner structure schematic diagram in the utility model.
Wherein, 1 housing, 2 main basal bases, 3 die support pad, 4 energising interfaces, 5 laser receiving/transmitting devices, 6 light holes, 7-1 die terminals lens, 7-2 die terminals lens supports seat, 8-1 optical fiber end lens, 8-2 optical fiber end lens supports seat, 9 optical fiber sleeves, 9-1-1 overlaps cylinder shell, 9-1-2 lock pin cylinder, 9-1-3 crack, 9-2-1 tail gum cover, 9-2-2 tail optical fiber lock pin cylinder, 10 gear platforms, 11 optical filters, 12 points of optical channels, 13 electromagnetic shielding plates, 14 backlight detection chip, 15 liner rings, 16 V-type grooves, 17 wire jumper lock pins, 18 optical fiber, 19 fluid sealants, 20 welds, 21 heat-conducting glues.
Embodiment
For making the technical problems to be solved in the utility model, technical scheme and beneficial effect clearly, be described in detail below in conjunction with the drawings and specific embodiments.
As shown in Fig. 1 and Fig. 3 ~ 7, embodiment 1: it comprises housing 1, the optical interface parts be arranged on housing 1, be fixed on main basal base 2 in housing 1 and die support pad 3, be arranged at detector chip on two described die support pad 3 and auxiliary circuit thereof and chip of laser and auxiliary circuit and correspondence thereof respectively and be arranged at two die terminals lens 7-1 on main basal base 2; Described housing 1 side is with light hole 6, and described optical interface parts aim at the light hole 6 on housing 1; Described die support pad 3 welds or is bonded on main basal base 2;
Two described die terminals lens 7-1 are respectively in photosurface and the chip of laser front end of described detector chip, and the optical axis of two described die terminals lens 7-1 is coaxially corresponding with described chip; Beam splitter is provided with between two described die terminals lens 7-1; As shown in Figure 1, described beam splitter comprises point optical channel 12 and two tablet filters 11 be arranged in point optical channel 12; Described point of optical channel 12 is provided with 3 passwaies, wherein the optical axis of a die terminals lens 7-1 is respectively aimed in 2 passwaies, light hole 6 is aimed in another passway, two bendings are had in described point of optical channel 12, optical filter 11 described in two panels lays respectively at two bending places in point optical channel 12, and aim at two passway slant settings, its angle of inclination and point optical channel 12 are in 45 degree; The laser of specific wavelength is carried out transmission or transmitting by described optical filter 11;
In FIG, housing 1 is separated into two chambers by the electromagnetic shielding plate 13 of centre, and the laser receiving/transmitting device 5 in chamber is above chip of laser and auxiliary circuit thereof, and the laser receiving/transmitting device 5 in chamber is below detector chip and auxiliary circuit thereof; Described chip of laser luminous after the die terminals lens 7-1 in its chamber through optical filter 11, mating plate 11 is transmitted through light hole 6 and sends after filtration, is coupled in the optical fiber 18 of wire jumper lock pin 17 in optical fiber sleeve 9 through optical fiber end lens 8-1; The laser come by transmission in optical fiber 18, is entered beam splitter through light hole 6 again after entering optical fiber end lens 8-1, from passway injection after the reflection of two tablet filters 11, is coupled to the photosurface of detector chip by die terminals lens 7-1.
When in point optical channel 12 be bent to different angles time, accommodation also will be done in the angle of inclination of optical filter 11, to ensure that the light in two chambers can communicate with light hole 6 by beam splitter respectively.
Described optical interface parts comprise optical fiber end lens 8-1 and optical fiber sleeve 9; Described optical fiber end lens 8-1 is between optical fiber sleeve 9 one end and the light hole 6 of housing 1;
Described chip of laser and auxiliary circuit thereof form one group with the die terminals lens 7-1 on front side of it, described detector chip and auxiliary circuit thereof form one group with the die terminals lens 7-1 on front side of its photosurface, spaced apart by electromagnetic shielding plate 13 between two groups, therefore form Laser emission chamber and laser pick-off chamber.
Described pedestal is also provided with energising interface 4, required electric connection is carried out by bonding line and via hole and described laser receiving/transmitting device 5, described energising interface 4 stretches out housing 1 and is communicated with extraneous electric signal, carries out airtight sealing between described energising interface 4 and housing 1 by fluid sealant 19;
A receipts/laser beam for described laser receiving/transmitting device 5 is come in and gone out through the light hole 6 of described housing 1.
Further, described die terminals lens 7-1 and optical fiber end lens 8-1 is globe lens, non-globe lens, plano-convex lens or lens pillar.
Further, described main basal base 2 and die support pad 3 are the metallized ceramic substrate of single-side/double-side, conventional pcb board, aluminum base PCB plate, copper base pcb board or the moulding including metal line.
Further, described energising interface 4 is arranged on described main basal base 2, and described energising interface 4 adopts wiring on main basal base 2 to generate golden finger or row's pin.
Further, described optical fiber sleeve 9 is plug-in optical fiber sleeve or tail-fiber type optical fiber sleeve;
When described optical fiber sleeve 9 is plug-in optical fiber sleeve, described optical fiber sleeve 9 comprises cover cylinder shell 9-1-1 and side has the lock pin cylinder 9-1-2 of crack 9-1-3; Be enclosed within described lock pin cylinder 9-1-2 in sleeve housing 9-1-1, on described lock pin cylinder 9-1-2, the outer wall of crack 9-1-3 offside welds with cover cylinder shell 9-1-1 inwall, forms weld 20; Wire jumper lock pin 17, as external thing, is inside inserted in lock pin cylinder 9-1-2;
When described optical fiber sleeve 9 is tail-fiber type optical fiber sleeve, described optical fiber sleeve 9 comprises tail gum cover 9-2-1, tail optical fiber lock pin cylinder 9-2-2 and wire jumper lock pin 17; Described wire jumper lock pin 17 is welded in tail optical fiber lock pin cylinder 9-2-2, is arranged with tail gum cover 9-2-1 outside described tail optical fiber lock pin cylinder 9-2-2.
Further, described optical interface parts also comprise the gear platform 10 of middle with hole, coaxial seamless contact successively between optical fiber 18 three in described optical fiber end lens 8-1, gear platform 10 and wire jumper lock pin 17.
Further, the multidirectional optical assembly of a kind of single fiber also comprises die terminals lens supports seat 7-2 and optical fiber end lens supports seat 8-2; Described die terminals lens supports seat 7-2 and optical fiber end lens supports seat 8-2 is equipped with light hole;
Described die terminals lens 7-1 is fixed in die terminals lens supports seat 7-2, described die terminals lens 7-1 is welded by die terminals lens supports seat 7-2 or is bonded on main basal base 2, and the optical axis of described die terminals lens 7-1 is coaxially corresponding with the light hole on die terminals lens supports seat 7-2; The photosurface of described detector chip or chip of laser corresponding with the optical axis of die terminals lens 7-1;
Described optical fiber end lens 8-1 is fixed in optical fiber end lens supports seat 8-2, described optical fiber end lens 8-1 welded by optical fiber end lens supports seat 8-2 or be bonded in optical fiber sleeve 9 one end and housing 1 light hole 6 between, the light hole of 8-2 on the light hole 6 of described housing 1, optical fiber end lens supports seat, the optical axis of optical fiber end lens 8-1 are corresponding with the light shaft coaxle of optical fiber 18 in wire jumper lock pin 17.
Further, described gear platform 10 is fixedly connected with optical fiber end lens supports seat 8-2, described optical fiber end lens supports seat 8-2 is the cylindrical shell that one end is provided with V-type groove 16, described optical fiber end lens 8-1 is closely embedded in wherein by the V-type groove 16 of optical fiber end lens supports seat 8-2 one end, and described optical fiber end lens 8-1 is closely fixed in optical fiber end lens supports seat 8-2 by described gear platform 10.
Further, airtight sealing is carried out by fluid sealant 19 between described optical fiber end lens 8-1 and optical fiber end lens supports seat 8-2.
Further, described laser receiving/transmitting device 5 is the photodiode such as chip of laser and detector chip and auxiliary circuit thereof, and its auxiliary circuit is custom circuit.
Further, the receipts/optical fiber 18 sent out in the light hole 6 of laser beam successively on the optical axis of described die terminals lens 7-1, point optical channel, housing 1, the optical axis of optical fiber end lens 7-1, the hole of gear platform 10 centre and wire jumper lock pin 17 of described laser receiving/transmitting device 5 is come in and gone out.
Further, the internal diameter under described lock pin cylinder 9-1-2 state of nature is less than or equal to the diameter of wire jumper lock pin 17.
Further, described tail optical fiber lock pin cylinder 9-2-2 side has crack 9-1-3, described wire jumper lock pin 17 inserts in tail optical fiber lock pin cylinder 9-2-2, internal diameter under described tail optical fiber lock pin cylinder 9-2-2 state of nature is less than or equal to the diameter of wire jumper lock pin 17, tail optical fiber is fixed in wire jumper lock pin 17 by fluid sealant 19 by the wire jumper lock pin 17 in described tail optical fiber lock pin cylinder 9-2-2, and described tail optical fiber is a kind of form of optical fiber 18.
Further, described gear platform 10 is fixedly connected with optical fiber end lens supports seat 8-2, by gear platform 10, described optical fiber end lens 8-1 is closely fixed in the V-type groove 16 of optical fiber end lens supports seat 8-2, sealed along optical fiber end lens 8-1 edge by fluid sealant 19, except the effect of reinforcing, V-type groove 16 is contacted outer edge to seal guarantee that moisture or other dusts do not enter housing 1 by light hole 6 and pollute or corrode the laser receiving/transmitting device 5 of its inside, die terminals lens 7-1 and other components and parts with optical fiber end lens 8-1, cause precision misalignment or serviceable life to shorten.Adopt fluid sealant 19 to be fixed and to seal in the application to be all in order to achieve the above object and effect.
Further, described plug-in optical fiber sleeve 9 also comprises liner ring 15, and described liner ring 15 is socketed in outside optical fiber end lens supports seat 8-2, or is socketed in outside cylinder shell 9-1-1; Or liner ring 15 and optical fiber end lens supports seat 8-2 are made into one, or liner ring 15 is made into one with cover cylinder shell 9-1-1, liner ring 15 in use, for fixed light interface.
Further, described gear platform 10 is between optical fiber end lens 8-1 and wire jumper lock pin 17; The thickness of described gear platform 10 determines that in wire jumper lock pin 17, optical fiber 18 is to the distance of optical fiber end lens 8-1.
Further, described optical fiber 18 is divided into APC type and UPC type, and different according to optical fiber 18 type used, the shape of corresponding gear platform 10 is also different, as long as but the hole at Dang Tai 10 center and optical fiber 18 center aim at.
Further, described laser receiving/transmitting device 5 be chip of laser and auxiliary circuit time, described laser receiving/transmitting device 5 also comprises back light detector 14, described back light detector 14 sinters or is bonded on die support pad 3, described die support pad 3 welds or is bonded on main basal base 2, the position of described back light detector 14 can receive with its photosurface light that chip of laser sends out and be as the criterion into about the angle that 8 to 15 spend with chip of laser, the photosurface of described back light detector 14 feeds back to the control device controlling light intensity after converting light intensity signal to electric signal after receiving the light that chip of laser sends out, this control device sends the light intensity that control signal regulates the transmitting of chip of laser.
Further, described laser receiving/transmitting device 5 be detector chip and auxiliary circuit time, described laser receiving/transmitting device also comprises trans-impedance amplifier chip and correlation filtering electric capacity, described trans-impedance amplifier chip and correlation filtering electric capacity sinter or are bonded on die support pad 3, described die support pad 3 welds or is bonded on main basal base 2, amplifies rear output after described detector chip converts light signal to electric signal by trans-impedance amplifier chip to this electric signal.
Further, the direction of stretching out housing according to described row's pin can be row's pin of side row's pin, bottom row pin, upper row's pin or other different directions.
Further, described main basal base 2 is coated with heat-conducting glue 21, is conducive to the inner each device of optical assembly and expands area of dissipation, accelerate radiating rate.
Further, the side plate in described housing 1 is laid with fluid sealant 19, carries out air-tight packaging.
As shown in Fig. 2 ~ 7, embodiment 2 comprises housing 1, the optical interface parts be arranged on housing 1, be fixed on main basal base 2 in housing 1 and N number of die support pad 3; Described die support pad 3 welds or is bonded on main basal base 2; N is greater than 2.
Each die support pad 3 is respectively arranged with laser receiving/transmitting device 5, see in Fig. 2, on die support pad 3, welding or bonding laser receiving/transmitting device 5 can be detector chip and auxiliary circuit thereof, also can be chip of laser and auxiliary circuit thereof, each detector chip and the front coupling of chip of laser have die terminals lens 7-1, described housing 1 side is with light hole 6, and embodiment 2 also comprises optical interface parts, and described optical interface parts aim at the light hole 6 on housing 1.
As shown in Figure 2, each laser receiving/transmitting device 5 and the die terminals lens 7-1 mated before it are one group, by electromagnetic shielding plate 13, each component are divided into one by one independently little cavity, avoid internal laser beam to disturb mutually and loss, be conducive to improving precision, reduce the outside light interference entered too.
Described die terminals lens 7-1 is respectively in the photosurface front end of each detector chip and chip of laser, and the optical axis of each die terminals lens 7-1 is coaxially corresponding with described photosurface; Beam splitter is provided with between each die terminals lens 7-1; As Fig. 2 shows, multiple optical filters 11 that described beam splitter comprises point optical channel 12 and is arranged in point optical channel 12; Described point of optical channel 12 is provided with the passway corresponding with optical filter 11, wherein the optical axis of a die terminals lens 7-1 is aimed in each passway, a passway is also had to aim at light hole 66, the number of beams separated is needed to match in the quantity of described optical filter 11 and point optical channel 12, separate light beam to be equivalent to light beam to reflect, described optical filter 11 lays respectively in point optical channel 12 and needs light splitting place, and aims at each passway slant setting, and its angle of inclination and point optical channel 12 are in 45 degree; The laser of described optical filter 11 pairs of specific wavelengths carries out transmission or transmitting;
In fig. 2, housing 1 is separated into each chamber by the electromagnetic shielding plate 13 of centre, and what the laser receiving/transmitting device 5 in each chamber had is chip of laser and auxiliary circuit thereof, and what have is detector chip and auxiliary circuit thereof.
The course of work of the present embodiment is as follows:
Described chip of laser is luminous after the die terminals lens 7-1 in its chamber, after filtration mating plate 11 transmission or be emitted through light hole 6 and send, and is coupled in the optical fiber 18 of wire jumper lock pin 17 in optical fiber sleeve 9 through optical fiber end lens 8-1; The laser come by transmission in optical fiber 18, is entered beam splitter through light hole 6 again after entering optical fiber end lens 8-1, from passway injection after the transmission of corresponding optical filter 11 or reflection, is coupled to the photosurface of corresponding detector chip by die terminals lens 7-1.
When in point optical channel 12 be bent to different angles time, accommodation also will be done in the angle of inclination of optical filter 11, to ensure that the laser beam in each chamber can communicate with light hole 6 by beam splitter respectively.
Described optical interface parts comprise optical fiber end lens 8-1 and optical fiber sleeve 9; Described optical fiber end lens 8-1 is between optical fiber sleeve 9 one end and the light hole 6 of housing 1;
Described chip of laser and auxiliary circuit thereof form one group with the die terminals lens 7-1 on front side of it, described detector chip and auxiliary circuit thereof form one group with the die terminals lens 7-1 on front side of its photosurface, spaced apart by electromagnetic shielding plate 13 between two groups, therefore form Laser emission chamber and laser pick-off chamber.
Described pedestal is also provided with energising interface 4, required electric connection is carried out by bonding line and via hole and described laser receiving/transmitting device 5, described energising interface 4 stretches out housing 1 and is communicated with extraneous electric signal, carries out airtight sealing between described energising interface 4 and housing 1 by fluid sealant 19;
A receipts/laser beam for described laser receiving/transmitting device 5 is come in and gone out through the light hole 6 of described housing 1.
Except above-mentioned feature, other features of embodiment 2 are identical with embodiment 1.
The utility model structure is simple, regular, adopt plane patch and bonding, need die support pad welding according to the arrangement of laser receiving/transmitting device 5 or be bonded on main basal base, regular shape, be convenient to clamping, conventional patch device and bonding apparatus can be used can to complete, without the need to dedicated custom equipment, improve the efficiency of production and paster encapsulation, and greatly reduce making human cost of the present utility model and time cost.
The utility model arranges two collective opticses, strengthens spotlight effect, and improve and launch coupling efficiency and receive the sensitivity be coupled, structure is simple, is beneficial to automation mechanized operation; Adopt plug-in electrical interface, be beneficial to use.
The above embodiment is only preferred embodiment of the present utility model, and is not the exhaustive of the feasible enforcement of the utility model.For persons skilled in the art, to any apparent change done by it under the prerequisite not deviating from the utility model principle and spirit, all should be contemplated as falling with within claims of the present utility model.
Claims (10)
1. the multidirectional optical assembly of single fiber, is characterized in that: it comprises side with the housing (1) of light hole (6), the pedestal be fixed in described housing (1), at least 2 the laser receiving/transmitting devices (5) be arranged on described pedestal, the die terminals lens (7-1), beam splitter described die terminals lens (7-1) between and with described light hole (6) the coaxial optical interface parts that arrange that arrange coaxial with each described laser receiving/transmitting device (5);
Described optical interface parts comprise optical fiber end lens (8-1) and optical fiber sleeve (9); Described optical fiber end lens (8-1) are positioned between the light hole (6) of optical fiber sleeve (9) one end and housing (1);
Described beam splitter comprises a point optical channel (12) and is arranged on the optical filter (11) in a point optical channel (12);
Described laser receiving/transmitting device (5) is detector chip and auxiliary circuit thereof or chip of laser and auxiliary circuit thereof, and described laser receiving/transmitting device (5) sinters or be bonded on described pedestal;
Each described laser receiving/transmitting device (5) forms one group with the die terminals lens (7-1) of its Corresponding matching, often spaced apart by electromagnetic shielding plate (13) between group;
Described pedestal is also provided with energising interface (4), described energising interface (4) is stretched out housing (1) and is communicated with extraneous electric signal.
2. the multidirectional optical assembly of a kind of single fiber according to claim 1, is characterized in that: described pedestal comprises main basal base (2) and die support pad (3), and described die support pad (3) is arranged on main basal base (2); Described laser receiving/transmitting device (5) is arranged on die support pad (3).
3. the multidirectional optical assembly of a kind of single fiber according to claim 2, is characterized in that: the ceramic substrate that described main basal base (2) and die support pad (3) are one-sided metallic, the ceramic substrate of two-sided metallization, conventional pcb board, aluminum base PCB plate, copper base pcb board or include the moulding of metal line.
4. the multidirectional optical assembly of a kind of single fiber according to claim 2, is characterized in that: described energising interface (4) is arranged on described main basal base (2), and described energising interface (4) adopts and generates golden finger or row's pin in the upper wiring of main basal base (2).
5. the multidirectional optical assembly of a kind of single fiber according to claim 1, is characterized in that: described optical fiber sleeve (9) is plug-in optical fiber sleeve or tail-fiber type optical fiber sleeve;
Described plug-in optical fiber sleeve comprises cover cylinder shell (9-1-1) and side has the lock pin cylinder (9-1-2) in crack (9-1-3); Be enclosed within described lock pin cylinder (9-1-2) in sleeve housing (9-1-1), the outer wall of upper crack (9-1-3) offside of described lock pin cylinder (9-1-2) welds with cover cylinder shell (9-1-1) inwall, is inserted in lock pin cylinder (9-1-2) in external wire jumper lock pin (17);
Described tail-fiber type optical fiber sleeve comprises tail gum cover (9-2-1), tail optical fiber lock pin cylinder (9-2-2) and wire jumper lock pin (17); Described wire jumper lock pin (17) is welded in tail optical fiber lock pin cylinder (9-2-2), is arranged with tail gum cover (9-2-1) outside described tail optical fiber lock pin cylinder (9-2-2).
6. the multidirectional optical assembly of a kind of single fiber according to claim 1, it is characterized in that: described optical interface parts also comprise the gear platform (10) of middle with hole, coaxial seamless contact successively between optical fiber (18) three in described optical fiber end lens (8-1), gear platform (10) and wire jumper lock pin (17).
7. the multidirectional optical assembly of a kind of single fiber according to claim 1 or 6, is characterized in that: it also comprises die terminals lens supports seat (7-2) and optical fiber end lens supports seat (8-2); Described die terminals lens supports seat (7-2) and optical fiber end lens supports seat (8-2) are equipped with light hole;
Described die terminals lens (7-1) are fixed in die terminals lens supports seat (7-2), described die terminals lens (7-1) weld or are bonded on main basal base (2) by die terminals lens supports seat (7-2), and the optical axis of described die terminals lens (7-1) is coaxially corresponding with the light hole on die terminals lens supports seat (7-2); The photosurface of described detector chip or chip of laser corresponding with the optical axis of die terminals lens (7-1);
Described optical fiber end lens (8-1) are fixed in optical fiber end lens supports seat (8-2), described optical fiber end lens (8-1) weld or are bonded between the light hole (6) of optical fiber sleeve (7) one end and housing (1) by optical fiber end lens supports seat (8-2), and the light hole on the light hole (6) of described housing (1), optical fiber end lens supports seat (8-2), the optical axis of optical fiber end lens (8-1) are corresponding with the light shaft coaxle in wire jumper lock pin (14).
8. the multidirectional optical assembly of a kind of single fiber according to claim 7, it is characterized in that: described optical fiber end lens supports seat (8-2) is provided with the cylindrical shell of V-type groove (16) for one end, and described optical fiber end lens (8-1) are closely embedded in wherein by the V-type groove (16) of optical fiber end lens supports seat (8-2) one end.
9. the multidirectional optical assembly of a kind of single fiber according to claim 1, it is characterized in that: point optical channel (12) in described beam splitter is provided with passway, described passway aims at optical axis and the light hole (6) of each described die terminals lens (7-1) respectively, described optical filter (11) aligned with channel mouth slant setting.
10. the multidirectional optical assembly of a kind of single fiber according to claim 1, is characterized in that: described die terminals lens (7-1) and optical fiber end lens (8-1) are globe lens, non-globe lens, plano-convex lens or lens pillar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853753.2U CN204374487U (en) | 2014-12-30 | 2014-12-30 | The multidirectional optical assembly of a kind of single fiber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420853753.2U CN204374487U (en) | 2014-12-30 | 2014-12-30 | The multidirectional optical assembly of a kind of single fiber |
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| Publication Number | Publication Date |
|---|---|
| CN204374487U true CN204374487U (en) | 2015-06-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420853753.2U Expired - Fee Related CN204374487U (en) | 2014-12-30 | 2014-12-30 | The multidirectional optical assembly of a kind of single fiber |
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| CN (1) | CN204374487U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107065084A (en) * | 2017-05-17 | 2017-08-18 | 中国兵器装备研究院 | A kind of joints of optical fibre with self-checking function |
| JP2018197849A (en) * | 2017-03-24 | 2018-12-13 | ルマセンス テクノロジーズ ホールディングズ， インク． | Bidirectional optoelectronic sub-assembly |
-
2014
- 2014-12-30 CN CN201420853753.2U patent/CN204374487U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2018197849A (en) * | 2017-03-24 | 2018-12-13 | ルマセンス テクノロジーズ ホールディングズ， インク． | Bidirectional optoelectronic sub-assembly |
| CN107065084A (en) * | 2017-05-17 | 2017-08-18 | 中国兵器装备研究院 | A kind of joints of optical fibre with self-checking function |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150603 Termination date: 20161230 |