CN106526762A - Efficiently-coupled QSFP optical module - Google Patents

Efficiently-coupled QSFP optical module Download PDF

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Publication number
CN106526762A
CN106526762A CN201610936408.9A CN201610936408A CN106526762A CN 106526762 A CN106526762 A CN 106526762A CN 201610936408 A CN201610936408 A CN 201610936408A CN 106526762 A CN106526762 A CN 106526762A
Authority
CN
China
Prior art keywords
groove
lens arra
lens
power detector
array chip
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201610936408.9A
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Chinese (zh)
Inventor
王亚丽
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Permanent Safe Technology Co Ltd Of Leading In Wuhan
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Permanent Safe Technology Co Ltd Of Leading In Wuhan
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Permanent Safe Technology Co Ltd Of Leading In Wuhan filed Critical Permanent Safe Technology Co Ltd Of Leading In Wuhan
Priority to CN201610936408.9A priority Critical patent/CN106526762A/en
Publication of CN106526762A publication Critical patent/CN106526762A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4201Packages, e.g. shape, construction, internal or external details
    • G02B6/4204Packages, e.g. shape, construction, internal or external details the coupling comprising intermediate optical elements, e.g. lenses, holograms
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B6/00Light guides
    • G02B6/24Coupling light guides
    • G02B6/42Coupling light guides with opto-electronic elements
    • G02B6/4201Packages, e.g. shape, construction, internal or external details
    • G02B6/4219Mechanical fixtures for holding or positioning the elements relative to each other in the couplings; Alignment methods for the elements, e.g. measuring or observing methods especially used therefor

Abstract

The invention relates to an efficiently-coupled QSFP optical module, which comprises a circuit board, an optical fiber array module, a lens array, multiple positioning blocks, a VCSEL (Vertical Cavity Surface-Emitting Laser) array chip, a power detector and a light-splitting glass slide, wherein one end of the lens array is arranged in a groove in the optical fiber array module, and the other end is connected with the multiple positioning blocks; the multiple positioning blocks, the VCSEL array chip and the power detector are arranged on the circuit board; and the light-splitting glass slide is arranged in a groove in the lens array. The coupling alignment process is simple, the manufacturing cost is low, the position between the lens array and the optical fiber array module and the positions between the lens array and the positioning blocks are optimized, and the coupling efficiency can be effectively improved; and as the light-splitting glass slide and the power detector are additionally arranged, monitoring on the actual power of the VCSEL array chip is realized, the transmitting power of the VCSEL array chip can be adjusted in real time according to actual needs, the VCSEL array chip can be matched with other modules, and the coupling efficiency of the QSFP optical module is further improved.

Description

A kind of QSFP optical modules of efficient coupling
Technical field
The present invention relates to optical communication technology field, the QSFP optical modules of more particularly to a kind of efficient coupling.
Background technology
In recent years, due to the fast development of an optical module group of planes, network operations system in computer realm, optical module it is logical Letter capacity jump, in this situation, Large Copacity is no longer unique target pursued, and the speed issue of communication is increasingly by people Concern.Under powerful market-driven, emerge in multitude for various new active devices and passive device in message area, use In VCSEL (Vertical-CavitySurface-EmittingLaser, the Vertical Cavity Surface transmitting laser in broadband high-speed field Device) planar waveguide chip such as array chip, the multiplexing of various uses, demultiplexing, beam splitter succeeded in developing in succession.Said chip will Encapsulation is when being fabricated to using device, it is necessary to have the optical-fiber array assembly of very high degree of precision as chip input and output coupling connect Mouthful, corresponding each optical fiber in each light-path and optical-fiber array assembly in said chip is strictly accurately aligned, Optical signal input, output could be fabricated to practical devices steady in a long-term, complex process, activity duration are long, and QSFP optical modules The overwhelming majority is directly to go out light, it is impossible to the working state real-time monitoring to VCSEL array chip, therefore cannot be found in time The problems of VCSEL array chip.
The content of the invention
The technical problem to be solved is to provide a kind of QSFP optical modules of efficient coupling, solves chip package system When being made using device, complex process, activity duration are long, and cannot be to the working state real-time monitoring of VCSEL array chip Problem.
The technical scheme that the present invention solves above-mentioned technical problem is as follows:A kind of QSFP optical modules of efficient coupling, including electricity Road plate, optical-fiber array assembly, lens arra, multiple locating pieces, VCSEL array chip, power detector and light splitting slide;It is described One end of lens arra in the groove of the optical-fiber array assembly, each in the other end and described multiple locating pieces It is connected;The circuit board layout is in the lower section of the lens arra;Multiple locating pieces, VCSEL array chip and power detection Device is on the circuit board;The light splitting slide is visited near the VCSEL array chip, power located at the lens arra Survey in the groove of device one end, a part of light that the VCSEL array chip emission goes out is transmitted from the light splitting slide, and enters institute State lens arra to be converged, light splitting slide described in another part light Jing reflexes to the power detector.
Further:The optical-fiber array assembly includes upper substrate, infrabasal plate and multidiameter delay optical fiber;Set on the upper substrate There is first groove of multiple sections in notch cuttype, the infrabasal plate is provided with multiple corresponding with first groove second and leads to Groove;The multidiameter delay optical fiber is embedded in first groove and the second groove area defined.
Further:Spacing between each adjacent first groove is 250um.
Further:The upper substrate is provided with the first groove near one end of the lens arra, on the infrabasal plate with The corresponding position of first groove is provided with the second groove;The lens arra is embedded at first groove and the second groove In area defined.
Further:The lens arra includes lens body, the first lens arra face, the second lens arra face and reflection Face, the first lens arra face are embedded at the lens body near described optical-fiber array assembly one end;Second lens Array surface is embedded at the lens body near VCSEL array chip one end;The reflecting surface is located at first lens arra It is between face and the second lens arra face and saturating for being sent to second after the light beam entered from the first lens arra face is changed 90 ° Lens array face.
Further:Multiple fixed blocks for locking lens arra are equipped with each locating piece.
Further:End face of the light splitting slide near the VCSEL array chip, power detector one end is provided with increasing Permeable membrane region and reflective film region, above the VCSEL array chip, the reflective film region sets the anti-reflection diaphragm area Above power detector.
Further:The scope of the distance between the VCSEL array chip and the power detector is 1 to 10mm.
Further:The power detector is MPD chip arrays.
The invention has the beneficial effects as follows:Lens arra is directly sleeved in optical-fiber array assembly, multidiameter delay light can be made Fibre is coupled and aligned with the first lens arra face;Lens arra is directly locked by the fixed block on locating piece, can make second Lens arra face is coupled and aligned with VCSEL array chip, process is simple, low manufacture cost, optimizes lens arra and fiber array Position between component, the position between lens arra and locating piece can effectively improve coupling efficiency;Separately set up light splitting slide and The light part that VCSEL array chip emission is gone out by power detector is transmitted and enters line convergence into lens arra, and a part is anti- It is mapped to power detector, realizes the monitoring to VCSEL array chip actual power, and can real-time adjustment according to actual needs The transmission power of VCSEL array chip so that VCSEL array chip is matched with other assemblies, further improves QSFP optical modes The coupling efficiency of block.
Description of the drawings
Fig. 1 is the QSFP optical module structure schematic diagrames of efficient coupling of the present invention;
Fig. 2 is the index path of the QSFP optical modules of efficient coupling of the present invention;
Fig. 3 is the structural representation of light splitting slide in the present invention;
Fig. 4 is optical-fiber array assembly structural representation in the present invention;
Fig. 5 is upper substrate structure schematic diagram in the present invention;
Specific embodiment
The principle and feature of the present invention are described below in conjunction with accompanying drawing, example is served only for explaining the present invention, and It is non-for limiting the scope of the present invention.
As shown in Figures 1 to 5, a kind of QSFP optical modules of efficient coupling, including circuit board 1, optical-fiber array assembly 2, thoroughly Lens array 3, multiple locating pieces 4, VCSEL array chip 5, power detector 6 and light splitting slide 7;One end of the lens arra 3 It is connected with the optical-fiber array assembly 2, the other end is connected with each in described multiple locating pieces 4;The circuit board 1 It is arranged in the lower section of the lens arra 3;The other end is connected with multiple locating pieces 4;Multiple locating pieces 4, VCSEL array chip 5 With power detector 6 on the circuit board 1 below the lens arra 3;The light splitting slide 7 is located at the lens Array 3 in the groove of the VCSEL array chip 5,6 one end of power detector, launch by the VCSEL array chip 5 A part of light transmit from the light splitting slide 7, and converged into the lens arra 3, described in another part light Jing point Light slide 7 reflexes to the power detector 6.
As shown in Figure 1, Figure 4 and Figure 5, the optical-fiber array assembly 2 includes upper substrate 21, infrabasal plate 22 and multidiameter delay light Fine 23;The upper substrate 21 be provided with multiple sections in notch cuttype the first groove 211, the infrabasal plate 22 be provided with it is multiple with The second corresponding groove 221 of first groove 211;The multidiameter delay optical fiber 23 is embedded at 211 He of the first groove In second groove, 221 area defined.The multidiameter delay optical fiber 23 is embedded at first groove 211 and the second groove After 221, can be locked by fixed cover;Spacing h between each adjacent first groove 2111250um is, error is little In 0.2um, to guarantee that each of multidiameter delay optical fiber 23 mutually leads the spacing between optical fiber also as 250um;By the groove of notch cuttype Multidiameter delay optical fiber 23 is installed in optical-fiber array assembly 2, top between going up or down stairway withstands multidiameter delay optical fiber 23, can Make that multidiameter delay optical fiber 23 is relatively firm to be installed in optical-fiber array assembly 2.
As shown in Figure 4 and Figure 5, the upper substrate 21 is provided with the first groove 212, institute near one end of the lens arra 3 State the second groove 222 is provided with the position corresponding with first groove 212 on infrabasal plate 22;The lens arra 3 is embedded In 222 area defined of first groove 212 and the second groove.Lens arra 3 is sheathed on into fiber array group directly In part 2, compared to the side that the conventional end face by lens arra 3 and 2 end face of optical-fiber array assembly are directly glued or are welded Formula, it is simple with coupling process, it is another to finely tune or optimize the position between lens arra 3 and optical-fiber array assembly 2, further can carry The advantage of high coupling efficiency.
As shown in Fig. 2 the lens arra 3 includes lens body 31, the first lens arra face 32, the second lens arra face 33 and reflecting surface 34, the first lens arra face 32 is embedded at the lens body 31 near the optical-fiber array assembly 2 one End;The second lens arra face 33 is embedded at the lens body 31 near 5 one end of VCSEL array chip;The reflecting surface 34 are located between the first lens arra face 32 and the second lens arra face 33, and for entering from the first lens arra face 32 The light beam for entering is sent to the second lens arra face 33 after changing 90 °.
As shown in figure 1, multiple fixed blocks 41 for locking lens arra 3 are equipped with each locating piece 4;Locating piece 4 Through initial adjustment examination positioned at couple state preferably position, therefore when lens arra 3 is directly placed on locating piece 4, coupling Efficiency has been in state up to standard, if again by finely tuning or optimizing the position between lens arra 3 and VCSEL array chip 5 and lead to Cross fixed block 41 to be locked, can further improve coupling efficiency.
As shown in Figures 2 and 3, the light splitting slide 7 is near the VCSEL array chip 5, power detector 6 one end End face is provided with anti-reflection diaphragm area 71 and reflective film region 72, and the anti-reflection diaphragm area 71 is on the VCSEL array chip 5 Side, the reflective film region 72 is above power detector 6.The anti-reflection diaphragm area 71 is coated with anti-reflection film, the reflectance coating Region 72 is coated with reflectance coating, is separated by zone line between the anti-reflection diaphragm area 71 and reflective film region 72;The reflection Film has certain light transmittance, can pass through for light, and light can be passed through from reflectance coating and anti-reflection film simultaneously, the deviation of its light path Unanimously, during paster, also act as the effect for being easy to correct;The anti-reflection film can make optical signal not decayed and reduce anti- Penetrate, and then ensure that sensitivity.
As shown in Fig. 2 the distance between the VCSEL array chip 5 and described power detector 6 h2Scope be 1 to 10mm.The power detector 6 is MPD chip arrays.VCSEL array is adjusted by the luminous power of observation MPD chip arrays The transmitting luminous power of chip 5, makes the multidiameter delay optical fiber 23 of optical-fiber array assembly 2 can be with VCSEL after lens arra 3 The reception picture dot of array chip 5 is aligned one by one, with higher coupling efficiency and uniformity.
The invention has the beneficial effects as follows:Lens arra 3 is directly sleeved in optical-fiber array assembly 2, multidiameter delay can be made Optical fiber 23 is coupled and aligned with the first lens arra face 32;Lens arra 3 is directly locked by the fixed block 41 on locating piece 4 Tightly, the second lens arra face 33 can be made to be coupled and aligned with VCSEL array chip 5, process is simple, low manufacture cost optimize lens Position between array 3 and optical-fiber array assembly 2, the position between lens arra 3 and locating piece 4 can effectively improve coupling effect Rate;Light splitting slide 7 and power detector 6 are set up separately, the light part transmission that VCSEL array chip 5 is launched simultaneously enters saturating Lens array 3 enters line convergence, and a part reflexes to power detector 6, realizes the monitoring to 5 actual power of VCSEL array chip, and Can real-time adjustment VCSEL array chip 5 according to actual needs transmission power so that VCSEL array chip 5 and other assemblies phase Matching, further improves the coupling efficiency of QSFP optical modules.
The foregoing is only presently preferred embodiments of the present invention, not to limit the present invention, all spirit in the present invention and Within principle, any modification, equivalent substitution and improvements made etc. should be included within the scope of the present invention.

Claims (9)

1. QSFP optical modules of a kind of efficient coupling, it is characterised in that:Including circuit board (1), optical-fiber array assembly (2), lens Array (3), multiple locating pieces (4), VCSEL array chip (5), power detector (6) and light splitting slide (7);The lens array One end of row (3) is connected with the optical-fiber array assembly (2), each phase in the other end and described multiple locating pieces (4) Connection;The circuit board (1) is arranged in the lower section of the lens arra (3);Multiple locating pieces (4), VCSEL array chip (5) With power detector (6) on the circuit board (1);The light splitting slide (7) is located at the lens arra (3) near institute State in VCSEL array chip (5), the groove of power detector (6) one end, launch one of the VCSEL array chip (5) Light splitting is transmitted from the light splitting slide (7), and is converged into the lens arra (3), light splitting described in another part light Jing Slide (7) reflexes to the power detector (6).
2. QSFP optical modules of a kind of efficient coupling according to claim 1, it is characterised in that:The optical-fiber array assembly (2) including upper substrate (21), infrabasal plate (22) and multidiameter delay optical fiber (23);The upper substrate (21) is provided with multiple sections and is in First groove (211) of notch cuttype, the infrabasal plate (22) are provided with multiple corresponding with first groove (211) second Groove (221);The multidiameter delay optical fiber (23) is embedded at first groove (211) and the second groove (221) surrounded In region.
3. QSFP optical modules of a kind of efficient coupling according to claim 2, it is characterised in that:Each adjacent first groove (211) spacing between is 250um.
4. according to Claims 2 or 3 a kind of efficient coupling QSFP optical modules, it is characterised in that:The upper substrate (21) The first groove (212) is provided near one end of the lens arra (3), on the infrabasal plate (22) with the first groove (212) Corresponding position is provided with the second groove (222);The lens arra (3) is embedded at first groove (212) and second recessed In groove (222) area defined.
5. QSFP optical modules of a kind of efficient coupling according to claim 1, it is characterised in that:Lens arra (3) bag Include lens body (31), the first lens arra face (32), the second lens arra face (33) and reflecting surface (34), first lens Array surface (32) is embedded at the lens body (31) near the optical-fiber array assembly (2) one end;Second lens arra Face (33) is embedded at the lens body (31) near VCSEL array chip (5) one end;The reflecting surface (34) is located at described Between one lens arra face (32) and the second lens arra face (33), and the light for entering from the first lens arra face (32) Beam is sent to the second lens arra face (33) after changing 90 °.
6. QSFP optical modules of a kind of efficient coupling according to claim 1, it is characterised in that:On each locating piece (4) It is provided with multiple fixed blocks (41) for locking lens arra (3).
7. QSFP optical modules of a kind of efficient coupling according to claim 1, it is characterised in that:The light splitting slide (7) is leaned on The nearly VCSEL array chip (5), the end face of power detector (6) one end are provided with anti-reflection diaphragm area (71) and reflectance coating area Domain (72), above the VCSEL array chip (5), the reflective film region (72) is located at the anti-reflection diaphragm area (71) Above power detector (6).
8. QSFP optical modules of a kind of efficient coupling according to claim 1, it is characterised in that:The VCSEL array chip And the scope of the distance between the power detector (6) is 1 to 10mm (5).
9. QSFP optical modules of a kind of efficient coupling according to claim 1, it is characterised in that:The power detector (6) For MPD chip arrays.
CN201610936408.9A 2016-11-01 2016-11-01 Efficiently-coupled QSFP optical module Pending CN106526762A (en)

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Application Number Priority Date Filing Date Title
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Publications (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108761666A (en) * 2018-03-30 2018-11-06 武汉联特科技有限公司 A kind of optical module
WO2021088181A1 (en) * 2019-11-08 2021-05-14 武汉光迅科技股份有限公司 Lens system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108761666A (en) * 2018-03-30 2018-11-06 武汉联特科技有限公司 A kind of optical module
US10914903B2 (en) 2018-03-30 2021-02-09 Linktel Technologies Co., Ltd Optical module
WO2021088181A1 (en) * 2019-11-08 2021-05-14 武汉光迅科技股份有限公司 Lens system

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Application publication date: 20170322