CN203838377U - Parallel transmission optical module coupling/light-splitting structure - Google Patents
Parallel transmission optical module coupling/light-splitting structure Download PDFInfo
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- CN203838377U CN203838377U CN201420194553.0U CN201420194553U CN203838377U CN 203838377 U CN203838377 U CN 203838377U CN 201420194553 U CN201420194553 U CN 201420194553U CN 203838377 U CN203838377 U CN 203838377U
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- lens
- optical module
- transmission optical
- light
- parallel transmission
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- ZGHQUYZPMWMLBM-UHFFFAOYSA-N 1,2-dichloro-4-phenylbenzene Chemical compound C1=C(Cl)C(Cl)=CC=C1C1=CC=CC=C1 ZGHQUYZPMWMLBM-UHFFFAOYSA-N 0.000 description 1
- 229920005372 Plexiglas® Polymers 0.000 description 1
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Abstract
The utility model provides a parallel transmission optical module coupling/light-splitting structure. The parallel transmission optical module coupling/light-splitting structure comprises a heat sink, a flexible circuit board, a TIA driving device, a transition block, an MPD detector, a laser and a coupling/light-splitting device enclosed by a packaging cover plate, wherein the packaging cover plate comprises a cover body portion, a concave portion and a configuration hole, the coupling/light-splitting device is arranged in the configuration hole and comprises a first lens, a second lens, a zone plate, and a reflector which are combined on a piece of glass, the glass comprises a front plane and a back plane, the zone plate is arranged on the back plane and corresponds to a laser, the first lens is arranged on the front plane and corresponds to the zone plate, the reflector is arranged on the front plane and close to the first lens, the second lens is arranged on the back plane and corresponds to the reflector, the MPD detector is arranged corresponding to the second lens. Therefore, through the combination of the above structure and construction, the beneficial effects of the parallel transmission optical module coupling/light-splitting structure are that the manufacturing is simple, the assembling is easy, the product cost is reduced, and the product yield rate is guaranteed.
Description
Technical field
The utility model relates to opto-electronic communications technology field, especially refers to a kind of parallel transmission optical module coupling/beam-splitting structure.
Background technology
Fast development along with data communication and interconnecting application, people are more and more higher to the requirement of communication bandwidth and capacity, this just requires to provide the operator of related service to improve the performance of server, especially interconnected bandwidth and the density of data center, the light interconnection of multi-channel parallel optical module becomes main solution gradually.In parallel module conventional design, light transmitting-receiving subassembly comprises respectively two or more LASER Light Source and detector, such as vertical-cavity surface-emitting lasers (VCSELs) and PIN detectors(PD), with corresponding optical coupling element, be generally one or more refractions, reflected light assembly, as lens.Be typically designed to lens arra and each LASER Light Source correspondence, and the light beam of its outgoing converged on the parallel optical fibre end face that connects optical transceiver module; Same, part lens arra and each photo-detector are corresponding, and the light of fiber end face outgoing is converged in detector photosurface.
Common parallel light modular construction in prior art, as:
Shown in Fig. 1, be common a kind of parallel light modular construction, wherein: circuit board (FPCB) 1, for by electrical signal transmission line bending 90 degree, makes light signal exit direction and electric signal input direction in same level; Optical coupling element 2 and array fibre 3 and connector thereof, wherein the VCSEL laser emitting of light in light transmitting-receiving subassembly, becomes collimated light beam through lens 4, finally by lens 5, is converged on the fiber end face in the joints of optical fibre.
Shown in Fig. 2, it is common another kind of parallel light modular construction, wherein: photocell 7 emitting laser light beams arrive reflecting element 10 after the collimation lens collimation of optical coupling element 8, and in this element reflects face generation total reflection, through next lens, converge in array fibre 9; In like manner, for the receiving element in optical transceiver module, light is outgoing from array fibre, through collimated-inclined-plane reflection-lens, converges finally and is received by photo-detector.
Summary of the invention
For solving the problems of the technologies described above, fundamental purpose of the present utility model is to provide a kind of parallel transmission optical module coupling/beam-splitting structure, this parallel transmission optical module coupling/beam-splitting structure adopts center from the zone plate of axle, be decomposed into the two-beam at different diffraction angle, a branch ofly through Lens Coupling, enter fiber, another bundle is through Mirror reflection and be finally coupled to Monitor PD element, and its one-piece construction is simple, easy to process, it is low to make cost.
For reaching above-mentioned purpose, the technical scheme of the utility model application is: a kind of parallel transmission optical module coupling/beam-splitting structure, comprise heat sink, flexible PCB, TIA drive unit, excessive piece, MPD detector, laser instrument and the coupling/light-dividing device sealing by encapsulation cover plate, wherein: described encapsulation cover plate and this are heat sinkly packaged into one and comprise cover body part, depressed part and configuration hole, this configuration hole is run through from this depressed part to this cover body part, this coupling/light-dividing device is arranged in this configuration hole, and comprise the zone plate being combined on glass sheet, first lens, catoptron and the second lens, this glass sheet just comprises, carry on the back two facial planes, the corresponding described laser instrument of this zone plate wherein, be located at this back side plane, this first lens, to should zone plate, be located at this positive facial plane, this catoptron closely, by this first lens, is located at this positive facial plane, these second lens, to should catoptron, be located at this back side plane, and this second lens setting of this MPD detectors.
For reaching above-mentioned purpose, the technical scheme of the utility model application is: a kind of parallel transmission optical module coupling/beam-splitting structure, comprise heat sink, flexible PCB, TIA drive unit, excessive piece, MPD detector, laser instrument and the coupling/light-dividing device sealing by encapsulation cover plate, wherein: described encapsulation cover plate and this are heat sinkly packaged into one and comprise cover body part, depressed part and configuration hole, this configuration hole is run through from this depressed part to this cover body part, this coupling/light-dividing device is arranged in this configuration hole, and comprise and be combined in first on glass sheet, the second and the 3rd lens and zone plate and catoptron, this glass sheet just comprises, carry on the back two facial planes and the pars intermedia between these two thereof, wherein the 3rd lens are to should laser instrument, be located at this back side plane, this first lens, to should the 3rd lens, be located at this positive facial plane, this zone plate is located at this pars intermedia, and respectively corresponding the first, the 3rd lens in its positive and negative two sides, this catoptron closely, by this first lens, is located at this back side plane, these second lens, to should catoptron, be located at this positive facial plane, and this second lens setting of this MPD detectors.
In above-mentioned two embodiment, preferably, the described heat sink basic portion that has has flat part in the middle of this basic portion, in the left and right sides of this flat part, has respectively wire casing portion.
In above-mentioned two embodiment, preferably, described flexible PCB comprises left and right line plate, and described left and right line plate is located at respectively the wire casing portion of the left and right sides.
In above-mentioned two embodiment, preferably, described TIA drive unit and excessively piece are all located at this flat part.
Preferred in above-mentioned two embodiment, described MPD detector and described laser instrument are all located on this excessive piece, wherein this MPD detector is connected with this TIA drive unit one end, and this TIA drive unit other end is connected with left line plate, and this laser instrument is connected with described right line plate.
Compared with prior art, its useful effect is the utility model: one-piece construction is simple, easy to process, it is low to make cost, and can improving product yield.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of a kind of parallel light modular construction in prior art.
Fig. 2 is the schematic diagram of another kind of parallel light modular construction in prior art.
Fig. 3 is the structural representation of the utility model preferred embodiment.
Fig. 4 is the enlarged diagram of A place structure in Fig. 3.
Fig. 5 is the structural representation of another preferred embodiment of the utility model.
Fig. 6 is the enlarged diagram of B place structure in Fig. 5.
Fig. 7 is the light path principle schematic diagram of coupling/light-dividing device in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Embodiment 1:
Refer to Fig. 3 and in conjunction with shown in Fig. 4 and Fig. 7, the utility model provides a kind of parallel transmission optical module coupling/beam-splitting structure, it comprises heat sink 11, flexible PCB (FPCB) 12, TIA drive unit (TIA/Driver) 13, excessively piece 14, MPD detector (Monitor PD array) 15, laser instrument (Vcsel) 16 and coupling/light-dividing device 18 of sealing by encapsulation cover plate 17, wherein:
Described heat sink 11 have basic portion 111, wherein in the middle of basic portion 111, have flat part 1111, in the left and right sides of this flat part 1111, have respectively wire casing portion 1112;
Described flexible PCB 12 comprises left and right line plate 121,122, and is located at respectively in the wire casing portion 1112 of the left and right sides;
Described TIA drive unit 13 and excessively piece 14 are all located on this flat part 1111;
Described MPD detector 15 and laser instrument 16 all encapsulate on excessive piece 14, and wherein this MPD detector 15 adopts gold thread to be connected with one end of this TIA drive unit 13, and the other end of this TIA drive unit 13 also adopts gold thread to be connected with left line plate 121; In the present embodiment, this laser instrument 16 adopts gold thread to be connected with described right line plate 122.
Described encapsulation cover plate 17 is packaged into one with this basic portion 111, and comprise that cover body part 171, depressed part 172 and configuration hole 173, this configuration hole 173 are run through from this depressed part 172 to these cover body part 171 surfaces and also can accommodate this coupling/light-dividing device 18 and be installed in wherein;
Described coupling/light-dividing device 18 is arranged in this configuration hole 173, comprise the zone plate 181 being combined on glass sheet (not mark), first lens (Lens1) 182, catoptron (Mirror) 183 and the second lens (Lens2) 184, wherein: this glass sheet just comprises, back side plane (not mark), the corresponding described laser instrument 16 of the plane of incidence of this zone plate (Phase zone plates) 181 is installed, the plane of incidence of this first lens 182 is installed outgoing plane that should zone plate 181, described catoptron 183 is near to be leaned on this first lens 182 and is located in the lump this positive facial plane with this first lens 182, 184 pairs, described the second lens should catoptron 183 planes of incidence and are located in the lump back side plane with this zone plate 181, 15 pairs of this MPD detectors should arrange by the second lens 184.
To sum up, in use, laser instrument 16 emitting laser light beams are decomposed into two-beam when zone plate 181, are respectively 0 order diffraction and 1 order diffraction that departs from optical axis specified angle along former direction, and 0 order diffraction light is coupled to optical fiber 19 and carries out signal transmission after first lens 182; 1 order diffraction light focuses on catoptron 183 places because of the focusing function of zone plate 181, and be reflected and deflect into laser instrument 16 sides, finally by the second lens 184, be coupled in MPD detector 15, make it to carry out the variation of real-time monitoring laser 16 emergent light power, also can realize closed loop control function.
In the present embodiment, zone plate 181 in described coupling/light-dividing device 18 can be designed to the amplitude type zone plate of the logical light in odd even wavestrip interval, also can be designed to odevity wavestrip optical path difference is the phase-type zone plate of using light source half-wavelength, concrete diffraction efficiency and the oblique power decision of light source according to demand.In described coupling/light-dividing device 18, zone plate 181 can be by first processing on the left side part slide, and then, with the bonding formation of glass sheet with right half part structure, this material can be used but be not limited to quartz glass body.
Embodiment 2:
Refer to Fig. 5 and in conjunction with shown in Fig. 6 and Fig. 7, the Structural Tectonics of a kind of parallel transmission optical module coupling/beam-splitting structure and embodiment 1 is roughly the same, its difference is: between described laser instrument 16 and described zone plate 181, set up the 3rd lens 185, making it the 3rd lens 185 receives the incident light of described laser instrument 16 and is diffracted into zone plate 181, wherein: in this coupling/light-dividing device 18, the 3rd lens 185 are located at back side plane (not mark) in the lump with described the second lens 184, described zone plate 181 is located between the 3rd lens 185 and first lens 182, be glass sheet pars intermedia (not mark), the light beam that makes it described laser instrument 16 is diffracted into zone plate 181 through the 3rd lens 185, again through zone plate 181 direct projection first lens 182, diffraction reflection mirror 183.
To sum up, in use, described laser instrument 16 incident beams, after the 3rd lens 185, be transformed into collimated light beam, during its process zone plate 181, be decomposed into two-beam, be respectively 0 order diffraction and 1 order diffraction that departs from optical axis specified angle along former direction, 0 order diffraction light is coupled to Fiber array and carries out signal transmission after lens; 1 order diffraction light focuses on structure Mirror place because of the focusing function of zone plate, and be reflected and deflect into VCSEl side, finally by Lens, be coupled to the variation of monitoring in real time VCSEl laser emitting luminous power in Monitor PD array, also can realize closed loop control function.
In above-mentioned 2 embodiment, described glass sheet is organic material moulding, as plexiglas, quartz glass, but is not limited to.
In sum, be only the preferred embodiment of the utility model, with this, do not limit protection domain of the present utility model, all equivalences of doing according to the utility model the scope of the claims and description change and modify, within being all the scope that the utility model patent contains.
Claims (10)
1. a parallel transmission optical module coupling/beam-splitting structure, comprise heat sink, flexible PCB, TIA drive unit, excessive piece, MPD detector, laser instrument and the coupling/light-dividing device sealing by encapsulation cover plate, it is characterized in that: described encapsulation cover plate and this are heat sinkly packaged into one and comprise cover body part, depressed part and configuration hole, this configuration hole is run through from this depressed part to this cover body part, this coupling/light-dividing device is arranged in this configuration hole, and comprise the zone plate being combined on glass sheet, first lens, catoptron and the second lens, this glass sheet just comprises, carry on the back two facial planes, the corresponding described laser instrument of this zone plate wherein, be located at this back side plane, this first lens, to should zone plate, be located at this positive facial plane, this catoptron closely, by this first lens, is located at this positive facial plane, these second lens, to should catoptron, be located at this back side plane, and this second lens setting of this MPD detectors.
2. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 1, is characterized in that: the described heat sink basic portion that has, in the middle of this basic portion, there is flat part, and in the left and right sides of this flat part, there is respectively wire casing portion.
3. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 2, is characterized in that: described flexible PCB comprises left and right line plate, and described left and right line plate is located at respectively the wire casing portion of the left and right sides.
4. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 3, is characterized in that: described TIA drive unit and excessively piece are all located at this flat part.
5. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 4, it is characterized in that: described MPD detector and described laser instrument are all located on this excessive piece, wherein this MPD detector is connected with this TIA drive unit one end, and this TIA drive unit other end is connected with left line plate, and this laser instrument is connected with described right line plate.
6. a parallel transmission optical module coupling/beam-splitting structure, comprise heat sink, flexible PCB, TIA drive unit, excessive piece, MPD detector, laser instrument and the coupling/light-dividing device sealing by encapsulation cover plate, it is characterized in that: described encapsulation cover plate and this are heat sinkly packaged into one and comprise cover body part, depressed part and configuration hole, this configuration hole is run through from this depressed part to this cover body part, this coupling/light-dividing device is arranged in this configuration hole, and comprise and be combined in first on glass sheet, the second and the 3rd lens and zone plate and catoptron, this glass sheet just comprises, carry on the back two facial planes and the pars intermedia between these two thereof, wherein the 3rd lens are to should laser instrument, be located at this back side plane, this first lens, to should the 3rd lens, be located at this positive facial plane, this zone plate is located at this pars intermedia, and respectively corresponding the first, the 3rd lens in its positive and negative two sides, this catoptron closely, by this first lens, is located at this back side plane, these second lens, to should catoptron, be located at this positive facial plane, and this second lens setting of this MPD detectors.
7. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 6, is characterized in that: the described heat sink basic portion that has, in the middle of this basic portion, there is flat part, and in the left and right sides of this flat part, there is respectively wire casing portion.
8. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 7, is characterized in that: described flexible PCB comprises left and right line plate, and described left and right line plate is located at respectively the wire casing portion of the left and right sides.
9. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 8, is characterized in that: described TIA drive unit and excessively piece are all located at this flat part.
10. parallel transmission optical module coupling/beam-splitting structure as claimed in claim 9, it is characterized in that: described MPD detector and described laser instrument are all located on this excessive piece, wherein this MPD detector is connected with this TIA drive unit one end, and this TIA drive unit other end is connected with left line plate, and this laser instrument is connected with described right line plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194553.0U CN203838377U (en) | 2014-04-22 | 2014-04-22 | Parallel transmission optical module coupling/light-splitting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420194553.0U CN203838377U (en) | 2014-04-22 | 2014-04-22 | Parallel transmission optical module coupling/light-splitting structure |
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| Publication Number | Publication Date |
|---|---|
| CN203838377U true CN203838377U (en) | 2014-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420194553.0U Expired - Lifetime CN203838377U (en) | 2014-04-22 | 2014-04-22 | Parallel transmission optical module coupling/light-splitting structure |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI616692B (en) * | 2014-12-29 | 2018-03-01 | 鴻海精密工業股份有限公司 | Optical fiber connector and optical coupling lens |
| CN109283632A (en) * | 2017-07-19 | 2019-01-29 | 苏州旭创科技有限公司 | Optical module |
| CN109541762A (en) * | 2018-12-29 | 2019-03-29 | 广东瑞谷光网通信股份有限公司 | The high speed list TO-CAN optical transceiving device and its processing method of coaxial packaging |
| WO2019080345A1 (en) * | 2017-10-27 | 2019-05-02 | 武汉电信器件有限公司 | Doublet-based transmission light device |
| US11432395B2 (en) | 2017-07-19 | 2022-08-30 | Innolight Technology Pte. Ltd. | Optical module |
| US11561351B2 (en) | 2017-07-19 | 2023-01-24 | Innolight Technology Pte. Ltd. | Optical module |
-
2014
- 2014-04-22 CN CN201420194553.0U patent/CN203838377U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI616692B (en) * | 2014-12-29 | 2018-03-01 | 鴻海精密工業股份有限公司 | Optical fiber connector and optical coupling lens |
| CN109283632A (en) * | 2017-07-19 | 2019-01-29 | 苏州旭创科技有限公司 | Optical module |
| US11432395B2 (en) | 2017-07-19 | 2022-08-30 | Innolight Technology Pte. Ltd. | Optical module |
| US11561351B2 (en) | 2017-07-19 | 2023-01-24 | Innolight Technology Pte. Ltd. | Optical module |
| WO2019080345A1 (en) * | 2017-10-27 | 2019-05-02 | 武汉电信器件有限公司 | Doublet-based transmission light device |
| CN109541762A (en) * | 2018-12-29 | 2019-03-29 | 广东瑞谷光网通信股份有限公司 | The high speed list TO-CAN optical transceiving device and its processing method of coaxial packaging |
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