CN110266379A - A kind of backlight monitoring optical assembly - Google Patents
A kind of backlight monitoring optical assembly Download PDFInfo
- Publication number
- CN110266379A CN110266379A CN201910600811.8A CN201910600811A CN110266379A CN 110266379 A CN110266379 A CN 110266379A CN 201910600811 A CN201910600811 A CN 201910600811A CN 110266379 A CN110266379 A CN 110266379A
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- China
- Prior art keywords
- backlight
- detector
- groove
- laser
- photosurface
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- 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.)
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- 230000003287 optical effect Effects 0.000 title claims abstract description 31
- 238000012544 monitoring process Methods 0.000 title abstract description 13
- 239000000853 adhesive Substances 0.000 claims description 3
- 230000001070 adhesive effect Effects 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000002310 reflectometry Methods 0.000 abstract description 5
- 239000013307 optical fiber Substances 0.000 description 5
- 239000000835 fiber Substances 0.000 description 4
- 230000001795 light effect Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012806 monitoring device Methods 0.000 description 2
- 238000013473 artificial intelligence Methods 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005496 eutectics Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0795—Performance monitoring; Measurement of transmission parameters
- H04B10/07955—Monitoring or measuring power
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/07—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems
- H04B10/075—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal
- H04B10/079—Arrangements for monitoring or testing transmission systems; Arrangements for fault measurement of transmission systems using an in-service signal using measurements of the data signal
- H04B10/0799—Monitoring line transmitter or line receiver equipment
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The present invention provides a kind of backlight monitoring optical assembly, including laser, detector and reflecting mirror, reflecting mirror is equipped with the first tilting mirrors and the second tilting mirrors angled therebetween to form V-groove, detector can move back and forth along the guide groove that reflecting mirror top surface opens up, angle between first tilting mirrors and photosurface is not equal to the angle between the first tilting mirrors and the backlight surface of emission, and the angle between the second tilting mirrors and photosurface is not equal to the angle between the second tilting mirrors and the backlight surface of emission.V-groove in this way on reflecting mirror can be reflected into the angle of divergence big backlight in detector photosurface, i.e. the backlight receiving efficiency of detector is high；Detector can be moved along guide groove so that the backlight that is received of the photosurface of detector is of different sizes, can be applicable in backlight laser of different sizes；The backlight that detector photosurface is again incident on after V-groove reflects will not be perpendicular to photosurface, to reduce the light beam for being reflected back laser from detector, i.e. backlight reflectivity is low.
Description
Technical field
The present invention relates to optical assembly technical field, in particular to a kind of backlight monitors optical assembly.
Background technique
In fiber optic communication systems, the luminous efficiency as the optical fiber laser of light source is affected by temperature clearly, is
Guarantee the stability of optical fiber telecommunications system, it will usually in optical fiber laser encapsulation, increase a hair to optical fiber laser
The device that optical power is monitored, then control system is identified by the electric current to monitoring device, is carried out compensated optical fiber laser and is existed
In the case of different temperatures power decline or increase problem, thus guarantee fibre system in different operating environment performance one
Cause property.This monitoring device monitors optical assembly backlight, and backlight monitoring optical assembly includes the backlight for receiving laser sending
Detector.
With internet, the high speed development of big data, artificial intelligence, high definition television, to fiber optic network transmission rate requirements
Higher and higher, the mankind improve fiber optic network transmission rate using various methods, with the raising of rate, optical device chip performance and
The requirement requirement of technique is higher and higher, such as the optical device of low speed, uses coaxial packaging substantially, laser and detector are all vertical
Straight patch, the backlight that such laser issues can be convenient, be efficiently incident on detector photosurface.But for high speed device
For, traditional vertical patch mode is no longer satisfied the demand of laser, this is because it is photosensitive to impinge perpendicularly on detector
The backlight in face can be reflected back laser, and high speed device requires backlight reflectivity low, and backlight reflectivity can be with laser
Rate improves and becomes larger.
A kind of backlight of existing smooth detector below the backlight that laser issues monitors optical assembly, which monitors light
Component can be reduced the backlight for being reflected back laser, but in this way in the case where the backlight angle of divergence of laser is big, and only seldom one
Part backlight can be received by a detector, this results in laser backlighting requirements very big, increase the manufacture difficulty of laser.And
In above-mentioned backlight monitoring optical assembly, if detector can receive the backlight of some laser sending, other backlight sizes
The backlight that different lasers is issued may can not be received by a detector, i.e., cannot be applicable in various lasers.
Summary of the invention
A kind of the technical problem to be solved in the present invention is to provide backlight reflectivity low, detector backlight receiving efficiency it is high and
The backlight monitoring optical assembly without laser can be applicable in.
In order to solve the above technical problems, the present invention provides a kind of backlight monitoring optical assembly, including laser and detector, also
Including reflecting mirror, the reflecting mirror is equipped with the first tilting mirrors and the second tilting mirrors, first tilting mirrors and second
Tilting mirrors is angled therebetween to form V-groove, and the intermediate channel slanted floor of the V-groove, the top surface of the reflecting mirror opens up useful
In the guide groove of installation detector, detector can move back and forth along guide groove, and the backlight that the laser issues is penetrated after V-groove reflects
Enter the photosurface of detector, the angle between first tilting mirrors and the photosurface of detector is not equal to the first tilting mirrors
Angle between the backlight surface of emission of laser, the angle between second tilting mirrors and the photosurface of detector differ
Angle between the second tilting mirrors and the backlight surface of emission of laser.
Preferably, the implementation structure of the intermediate channel slanted floor of the V-groove is specifically: the intermediate channel bottom one of the V-groove
End is provided with the guide groove slot bottom of reflecting mirror top surface, and the other end is provided with side of the reflecting mirror towards laser, and is lower than and is provided with
One end of the guide groove slot bottom of reflecting mirror top surface.
Preferably, including collector lens, the collector lens are mounted on V-groove.
Preferably, the backlight that the laser issues injects the implementation structure of the photosurface of detector after V-groove reflects
Specifically: the backlight surface of emission of the laser is by collector lens towards V-groove, and the photosurface of the detector is towards V-type
Slot.
Preferably, the backlight surface of emission of the laser is close to the side of the reflecting mirror, and face V-groove, the spy
Survey the photosensitive face-down of device, and face V-groove.
Preferably, including gasket, the laser are mounted on gasket, and the reflecting mirror is mounted on the laser on gasket
On the position of backlight surface of emission face.
Preferably, the collector lens is adhesive on V-groove by optics.
Preferably, the angle between first tilting mirrors and the second tilting mirrors is less than 90 °.
The invention has the following advantages: since two tilting mirrors of the V-groove of reflecting mirror are angled therebetween, therefore V-type
Slot has focusing light effect, accordingly even when the backlight angle of divergence of laser is bigger, the backlight for causing it to issue emits in divergent shape
Onto reflecting mirror, two tilting mirrors of the V-groove on reflecting mirror can also converge backlight and be reflected into the photosurface of detector,
That is the backlight receiving efficiency of detector is high；Since detector can be moved along guide groove, then the photosurface and V of detector can be changed in user
The distance between reflection position of type groove, so that the backlight that the photosurface of detector is received is of different sizes, therefore backlight monitors
Optical assembly can be applicable in backlight laser of different sizes；Further, since between the first tilting mirrors and the photosurface of detector
Angle not equal to angle between the first tilting mirrors and the backlight surface of emission of laser, the second tilting mirrors and detector
Angle between photosurface is anti-through V-groove in this way not equal to the angle between the second tilting mirrors and the laser backlight surface of emission
The backlight that detector photosurface is again incident on after penetrating is not orthogonal to photosurface, to reduce the back for being reflected back laser from detector
Light, i.e. backlight reflectivity is low, to meet the needs of high rate laser device.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of backlight monitoring optical assembly；
Fig. 2 is the structural schematic diagram of the backlight monitoring optical assembly after removing detector and collector lens；
Fig. 3 is the front perspective view of backlight monitoring optical assembly；
Fig. 4 is the side view of the backlight monitoring optical assembly in Fig. 2.
Description of symbols: 1- laser；2- detector；3- reflecting mirror；4- gasket；5- collector lens；6- first is tilted
Mirror surface；The second tilting mirrors of 7-；The intermediate channel bottom of 8-V type groove；9- guide groove.
Specific embodiment
The exemplary embodiment of the application is more fully described below with reference to accompanying drawings.Although showing the application in attached drawing
Exemplary embodiment, it being understood, however, that may be realized in various forms the application without should be by embodiments set forth here
It is limited.It is to be able to thoroughly understand the application on the contrary, providing these embodiments, and can be by scope of the present application
It is fully disclosed to those skilled in the art.
As shown in Figure 1, backlight monitoring optical assembly includes laser 1, detector 2, reflecting mirror 3, gasket 4 and collector lens 5,
Laser 1 is attached on gasket 4 by eutectic technology, and through elargol die bond on gasket 4, the specific die bond of reflecting mirror 3 exists reflecting mirror 3
On the position of 1 backlight surface of emission face of laser.
As shown in Fig. 2, reflecting mirror 3 is equipped with the first tilting mirrors 6 and the second tilting mirrors 7, the first tilting mirrors 6 and the
Two tilting mirrors 7 are mutually the angle less than 90 ° to form the V-groove with focusing light effect, and the top surface of reflecting mirror 3, which offers, to be used for
The guide groove 9 of detector 2 is installed, 8 one end of intermediate channel bottom of the V-groove is provided with the slot bottom of guide groove 9, and the other end is provided with reflecting mirror
3 just tilt as shown in Figure 3 towards the side of laser 1, the intermediate channel bottom 8 of such V-groove.
Collector lens 5 is sphere lens, has focusing light effect, the V of reflecting mirror 3 is adhesive in by colorless and transparent optics
In type groove, optical cement makes the light transmission rate between collector lens 5 and the V-groove of reflecting mirror 3 be maintained at 90% or more.Detector
On the 2 photosensitive guide grooves 9 for being mounted on reflecting mirror 3 face-down, so that the photosurface of detector 2 is against V-groove, detector 2 can be
Move back and forth on guide groove 9 along guide groove 9, to change the position of detector 2 He its photosurface.
As shown in figure 4, the V-groove of the backlight surface of emission face reflecting mirror 3 of laser 1, laser 1 shown in FIG. 1 in this way
After launching the backlight of divergent shape, the backlight of the divergent shape first passes through collector lens 5, and collector lens 5 is by the backlight of divergent shape
Convergence, the backlight after convergence are mapped to the V-groove of reflecting mirror 3 again, and V-groove is tilted the first tilting mirrors 6 and second is mapped to respectively
Backlight on mirror surface 7 is reflected into the photosurface of detector 2, and backlight further converges in the reflection process.User can be along leading
Slot 9 moves back and forth detector 2 to change the position of its photosurface, to change the light of the reflection position and detector 2 on V-groove
The distance between quick face, so that the backlight that the photosurface of detector 2 is received is of different sizes, therefore the backlight of the present embodiment monitors
Optical assembly can be applicable in backlight laser 1 of different sizes.Specifically, if the backlight of laser sending is bigger than normal, user can be enabled
Detector 2 moves away from collector lens 5 along guide groove 9, and the backlight that the photosurface of such detector 2 receives becomes smaller；If laser 1
The backlight of sending is less than normal, then user can enable detector 2 move close to collector lens 5, the photosurface of such detector 2 along guide groove 9
The backlight received becomes larger.
In the present embodiment, since the V-groove and collector lens 5 of reflecting mirror 3 all have focusing light effect, accordingly even when laser
The 1 backlight angle of divergence is very big, and leading to backlight is in that the divergent shape of relatively dispersion is launched, the V-type on collector lens 5 and reflecting mirror 3
Two tilting mirrors 6,7 of slot can also be reflected into backlight in the photosurface of detector 2, i.e. the backlight receiving efficiency of detector 2
The backlight monitoring optical assembly of height, this sample embodiment also can be used normally.
It, can be by the tilt angle of two tilting mirrors 6,7 of the V-groove on setting reflecting mirror 3, to make in the present embodiment
Obtain backlight of the angle between the first tilting mirrors 6 and the photosurface of detector 2 not equal to the first tilting mirrors 6 and laser 1
Angle between the surface of emission, the angle between the second tilting mirrors 7 and the photosurface of detector 2 are not equal to the second tilting mirrors 7
Angle between the 1 backlight surface of emission of laser, is again incident on the backlight of 2 photosurface of detector not after V-groove reflects in this way
It can be perpendicular to photosurface, so that the backlight for being reflected back laser 1 from detector 2 is reduced, to meet the needs of high rate laser device.
Finally it should be noted that above embodiments are only to illustrate the technical solution of the application, rather than the application is protected
The limitation of range is protected, although explaining in detail referring to preferred embodiment to the application, those skilled in the art are answered
Work as understanding, the technical solution of the application can be modified or replaced equivalently, without departing from the reality of technical scheme
Matter and range.
Claims (8)
1. a kind of backlight monitors optical assembly, including laser and detector, it is characterized in that: further include reflecting mirror, the reflecting mirror
It is equipped with the first tilting mirrors and the second tilting mirrors, first tilting mirrors and the second tilting mirrors are angled therebetween to be formed
V-groove, the intermediate channel slanted floor of the V-groove, the top surface of the reflecting mirror offer the guide groove for installing detector, detection
Device can move back and forth along guide groove, and the backlight that the laser issues injects the photosurface of detector after V-groove reflects, and described the
Angle between one tilting mirrors and the photosurface of detector not equal to the backlight surface of emission of the first tilting mirrors and laser it
Between angle, angle between second tilting mirrors and the photosurface of detector is not equal to the second tilting mirrors and laser
The backlight surface of emission between angle.
2. backlight according to claim 1 monitors optical assembly, characterized in that the reality of the intermediate channel slanted floor of the V-groove
Applying structure is specifically: intermediate channel bottom one end of the V-groove is provided with the guide groove slot bottom of reflecting mirror top surface, and the other end is provided with instead
Side of the mirror towards laser is penetrated, and lower than the one end for the guide groove slot bottom for being provided with reflecting mirror top surface.
3. backlight according to claim 2 monitors optical assembly, it is characterized in that: include collector lens, the collector lens peace
On V-groove.
4. backlight according to claim 3 monitors optical assembly, characterized in that the backlight that the laser issues is through V-groove
The implementation structure that the photosurface of detector is injected after reflection is specifically: the backlight surface of emission of the laser passes through collector lens court
To V-groove, the photosurface of the detector is towards V-groove.
5. backlight according to claim 4 monitors optical assembly, it is characterized in that: the backlight surface of emission of the laser is close to institute
State the side of reflecting mirror, and face V-groove, the detector it is photosensitive down, and face V-groove.
6. backlight according to claim 5 monitors optical assembly, it is characterized in that: including gasket, the laser is mounted on pad
On piece, the reflecting mirror are mounted on the position of the laser backlight surface of emission face on gasket.
7. backlight according to claim 3 monitors optical assembly, it is characterized in that: the collector lens is adhesive in V by optics
In type groove.
8. backlight according to claim 1 monitors optical assembly, it is characterized in that: first tilting mirrors and the second tilting mirror
Angle between face is less than 90 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600811.8A CN110266379A (en) | 2019-07-04 | 2019-07-04 | A kind of backlight monitoring optical assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910600811.8A CN110266379A (en) | 2019-07-04 | 2019-07-04 | A kind of backlight monitoring optical assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110266379A true CN110266379A (en) | 2019-09-20 |
Family
ID=67924474
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910600811.8A Pending CN110266379A (en) | 2019-07-04 | 2019-07-04 | A kind of backlight monitoring optical assembly |
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| CN (1) | CN110266379A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021218463A1 (en) * | 2020-04-26 | 2021-11-04 | 青岛海信宽带多媒体技术有限公司 | Optical module |
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