CN107872004A - A kind of double light beam laser output device - Google Patents
A kind of double light beam laser output device Download PDFInfo
- Publication number
- CN107872004A CN107872004A CN201711205771.4A CN201711205771A CN107872004A CN 107872004 A CN107872004 A CN 107872004A CN 201711205771 A CN201711205771 A CN 201711205771A CN 107872004 A CN107872004 A CN 107872004A
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- CN
- China
- Prior art keywords
- light path
- lens
- output device
- light beam
- thermoelectric module
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
- Optical Couplings Of Light Guides (AREA)
Abstract
The invention discloses a kind of double light beam laser output device,Include laser diode and pedestal,Thermoelectric module is provided with pedestal,The thermoelectric module upper surface is fixed with optical wavelength lock,Described laser diode is arranged inside optical wavelength lock,Collimation lens and half-reflecting half mirror are disposed with along in the light path in the Laser emission direction of the laser diode surface of emission,The first coupled lens and the first output optical fibre of light path connection are wherein also set gradually on the direct emitting light path of half-reflecting half mirror,The total reflective mirror of light path connection is also disposed with the reflected light path of the direct emitting light path of half-reflecting half mirror,Second coupled lens and the second output optical fibre,Two temperature sensors are installed above thermoelectric module,Described temperature sensor is connected with temperature controller,The temperature controller connects with thermoelectric module control.It is an advantage of the present invention to provide double beams laser output, significantly reduces the volume of system, adds reliability and the flexibility of system.
Description
Technical field
The invention belongs to field of semiconductor lasers, is related to a kind of double light beam laser output device.
Background technology
Semiconductor laser core component is laser diode, is the laser by the use of semi-conducting material as operation material.
Its operation principle is by certain energisation mode, in the energy band of semiconductor substance（Conduction band and valence band）Between, or semiconductor
The energy band and impurity of material（It is acceptor or donor）Between energy level, the population inversion of nonequilibrium carrier is realized, when in particle
When a large amount of electronics of number inverted status are with hole-recombination, stimulated emission effect is just produced.Electrical pumping formula semiconductor laser, typically
It is by GaAs（GaAs）, cadmium sulfide（CdS）, indium phosphide (InP), the semiconductor junction made of material such as zinc sulphide (ZnS)
Diode, enter row energization along forward bias Injection Current, stimulated emission is produced in junction plane region.
Work, it is necessary to which itself and other devices are done into certain encapsulation in order that laser diode is reliable and stable, mainly have
Cylindrical type（Transistor Outline; TO ）, double line style (Dual-in-Line Package;) and butterfly DIP
(Butterfly) three kinds of encapsulation modes.
Conventional semiconductor laser device can only export single beam laser, if system needs double beams laser, must install two sets and swash
Light device and its drive circuit.With the development of laser spectrum e measurement technology, demand is proposed to double light beam laser output device, together
When also require that the volume of laser output device is less and less, it is therefore necessary to this is improved.
Therefore using the system faces challenges of two sets of separate lasers, the invention provides one kind to be swashed with dual-beam tradition
The device of light output, in the case where using an encapsulation side body, there is provided double beams laser exports, and significantly reduces the body of system
Product, adds reliability and the flexibility of system.
The content of the invention
The purpose of the present invention is to overcome shortcoming and defect present in prior art, and provides a kind of double light beam laser output
Device, in the case of using packaging body, there is provided double beams laser exports, and significantly reduces the volume of system, adds and is
The reliability of system and flexibility.
To achieve the above object, the technical scheme is that including laser diode and pedestal, it is provided with pedestal
Thermoelectric module, the thermoelectric module upper surface are fixed with optical wavelength lock, and described laser diode is arranged at optical wavelength
Inside lock, collimation lens and half is disposed with along in the light path in the Laser emission direction of the laser diode surface of emission instead
The first coupled lens of light path connection and first defeated are also set gradually on the direct emitting light path of pellicle mirror, wherein half-reflecting half mirror
Go out optical fiber, be also disposed with the reflected light path of the direct emitting light path of half-reflecting half mirror light path connection total reflective mirror, second
Coupled lens and the second output optical fibre, two temperature sensors are installed above thermoelectric module, two TEMPs
Device is negative tempperature coefficient thermistor, respectively front end thermistor and rear end thermistor, wherein, the installation of front end thermistor
Among the first coupled lens and the second coupled lens, rear end thermistor is installed on the downside of optical wavelength locking and close to laser
The position of diode, described temperature sensor are connected with temperature controller, and the temperature controller connects with thermoelectric module control
Connect.
By this setting, laser diode running parameter is affected by temperature larger, it is therefore desirable to uses thermoelectric module control
Temperature processed, two temperature sensors are housed on thermoelectric module, be arranged close to laser diode position is referred to as rear end temperature
Sensor, the head temperature sensor that is referred to as close to coupled lens position, temperature sensor form temperature control with thermoelectric module
Loop processed, the control of temperature can be achieved via the driving of external control circuit.
It is the semi-transparent semi-reflecting lens further to set and incident laser is in 45 degree of angles, total reflective mirror minute surface and semi-transparent semi-reflecting lens
Reflecting surface is placed in parallel, and described total reflective mirror is 45 degree of total reflective mirrors, the emitting light paths of 45 degree of total reflective mirrors and collimation lens it is straight
Emitting light path is connect to be parallel to each other.
It is also to include packaging body further to set, and described packaging body includes encapsulation side body and is packaged in package-side
The upper lid at housing upper opening end, the lower end of the encapsulation side body are fixedly connected on pedestal.
By this setting, external control circuit is interconnected by electric interfaces and the present apparatus, and the electric signal inside device is all
Electric interfaces are connected to, electric interfaces are sealingly mounted at the shell rear portion of device.Whole interior arrangement is sealed by upper lid, makes inside
Closed control is formed, prevents the influence of external fines or moisture to internal light path.The present invention realizes single encapsulation side body
The stable output of double beams laser, available for twin-channel laser spectral measurement system.
Further setting is that the inner surface of the pedestal, encapsulation side body and upper lid does black anodizing processing.Pass through
This setting can absorb veiling glare.
It is the base bottom surface flat smooth further to set, and corner carries fixing hole.
It is that the thermoelectric module is bidirectional current control type further to set, and is realized by control by sense of current
Refrigeration or heating, improve temperature control accuracy.
It is that the laser diode is to use laser diode of the centre wavelength for 785nm further to set.
It is also to include the first fiber fixed seat for being arranged at package-side housing forward end and the second optical fiber is consolidated further to set
Reservation, the first described output optical fibre are arranged at the first fiber fixed seat, and second fiber fixed seat is arranged at the second optical fiber
Fixed seat.
The laser of laser diode transmitting by semi-transparent semi-reflecting lens, it is latter to be obtained two beam intensity identical laser by the present invention
Beam is coupled directly into output optical fibre, and another beam is coupled into output optical fibre after total reflective mirror reflects, and realizes in a package-side shell
Double beams laser is exported in body, the complexity of double light beam laser generation system is simplified, reduces system bulk, meets that dual-beam is adopted
Demand of the collecting system to laser.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without having to pay creative labor, according to
These accompanying drawings obtain other accompanying drawings and still fall within scope of the invention.
Fig. 1 is a kind of internal principle schematic of the present invention.
Fig. 2 is a kind of exterior three dimensional structural representation of the present invention.
Fig. 3 is a kind of outside rearview of the present invention；
In figure：1. the first output optical fibre, 2. second output optical fibres, 3. first fiber fixed seats, 4. second fiber fixed seats, 5. bases
Seat, 6. first coupled lens, 7. semi-transparent semi-reflecting lens, 8. collimation lenses, 9. optical wavelength locks, 10. fixing holes, 11. electrically connect
Mouthful, 12. rear end thermistors, 13. thermoelectric modules, 14. encapsulation side bodies, 15. laser diodes, 16. total reflective mirrors, 17. the
Two coupled lens, 18. front end thermistors, cover on 19..
Embodiment
To make the object, technical solutions and advantages of the present invention clearer, the present invention is made into one below in conjunction with accompanying drawing
It is described in detail on step ground.
The direction and position term that the present invention is previously mentioned, for example, " on ", " under ", "front", "rear", "left", "right", " interior ", "
Outside ", " top ", " bottom ", " side " etc., only it is the direction or position of refer to the attached drawing.Therefore, the direction used and position term
It is to illustrate and understand the present invention, rather than limiting the scope of the invention.
As shown in Figure 1 to Figure 3, it is embodiment in the embodiment of the present invention：A kind of double light beam laser output device, it is internal former
Reason is as shown in Figure 1.The centre wavelength that laser diode 15 launches laser is 785nm, and maximum laser transmission power is 1000mW, peace
Mounted in the inside of optical wavelength lock 9, optical wavelength lock 9 is fixed on the upper surface of thermoelectric module 13；Laser diode 15 is sent out
The collimated lens 8 of laser penetrated reach semi-transparent semi-reflecting lens 7 after collimating, from the working characteristics of semi-transparent semi-reflecting lens 7, the pole of laser two
The laser that pipe 15 is sent is classified into two parts herein.
Wherein half laser light semi-transparent semi-reflecting lens 7, the first coupled lens 6 are reached, enter the first output light after coupled
Fibre 1, the first output optical fibre 1 is fixed by the first fiber fixed seat 3, and so far first via laser completes output.Laser diode 51, standard
Straight lens 8, the first coupled lens 6, the coupled end of the first output optical fibre 1 keep same optical axis, and semi-transparent semi-reflecting lens 7 are located at collimation lens
8 and first coupled lens 6 center section.
Second half laser is reflected through semi-transparent semi-reflecting lens 7, reaches total reflective mirror 16, and the second coupling is reached after being reflected by total reflective mirror 16
Lens 17, entering the second output optical fibre 2 after coupled, the second output optical fibre 2 is fixed by the second fiber fixed seat 4, and so far second
Road laser completes output, and semi-transparent semi-reflecting lens 7 and incident laser be in 45 degree of angles, the reflection of the minute surface of total reflective mirror 16 and semi-transparent semi-reflecting lens 7
Face is placed in parallel.
Encapsulation side body 14, the bottom surface flat smooth of pedestal 5 are welded with pedestal 5, corner carries fixing hole 10, can be firm
It is fixed on radiating surface；Base-plates surface in encapsulation side body 14 is provided with thermoelectric module 13, on the top of thermoelectric module
Two temperature sensors are installed, two temperature sensors are negative tempperature coefficient thermistor, respectively front end thermistor
18, it is installed among the first coupled lens 6 and the second coupled lens, rear end thermistor 12, is installed on optical wavelength lock 9
Downside, close to laser diode 15, described temperature sensor is connected with temperature controller, the temperature controller and thermoelectric cooling
Piece control connection, it is possible thereby to be controlled to the temperature of thermoelectric module, and then improves the stability of the output-index of laser.
The electric signal line of all inside is connected to electric interfaces 11, including laser diode 15, front end thermistor 18,
The power supply and signal wire of rear end thermistor 12, thermoelectric module 13.Electric interfaces can connect external control circuit, by outer control
Circuit provides driving.
Above disclosure is only preferred embodiment of present invention, can not limit the right model of the present invention with this certainly
Enclose, therefore the equivalent variations made according to the claims in the present invention, still belong to the scope that the present invention is covered.
Claims (8)
1. a kind of double light beam laser output device, includes laser diode and pedestal, it is characterised in that：Heat is provided with pedestal
Electric cooling piece, the thermoelectric module upper surface are fixed with optical wavelength lock, and described laser diode is arranged at optical wavelength lock
Determine inside device, collimation lens and half anti-half are disposed with along in the light path in the Laser emission direction of the laser diode surface of emission
The first coupled lens and the first output of light path connection are also set gradually on the direct emitting light path of lens, wherein half-reflecting half mirror
Optical fiber, total reflective mirror, the second coupling of light path connection are also disposed with the reflected light path of the direct emitting light path of half-reflecting half mirror
Lens and the second output optical fibre are closed, two temperature sensors are installed above thermoelectric module, two temperature sensors
For negative tempperature coefficient thermistor, respectively front end thermistor and rear end thermistor, wherein, front end thermistor is installed on
Among first coupled lens and the second coupled lens, rear end thermistor is installed on the downside of optical wavelength locking and close to laser two
The position of pole pipe, described temperature sensor are connected with temperature controller, and the temperature controller connects with thermoelectric module control.
2. double light beam laser output device according to claim 1, it is characterised in that：The semi-transparent semi-reflecting lens swash with incidence
Light is in 45 degree of angles, and the reflecting surface of total reflective mirror minute surface and semi-transparent semi-reflecting lens is placed in parallel, and described total reflective mirror is 45 degree of total reflective mirrors, should
The emitting light path of 45 degree of total reflective mirrors and the direct emitting light path of collimation lens are parallel to each other.
3. double light beam laser output device according to claim 1, it is characterised in that：Also include packaging body, it is described
Packaging body includes encapsulation side body and is packaged in the upper lid at encapsulation side body upper opening end, and the lower end of the encapsulation side body is consolidated
Surely it is connected on pedestal, the side for encapsulating side body is provided with electric interfaces, and the electric signal in packaging body passes through electric interfaces
External connection.
4. double light beam laser output device according to claim 3, it is characterised in that：The pedestal, encapsulation side body with
The inner surface of upper lid does black anodizing processing.
5. double light beam laser output device according to claim 1, it is characterised in that：The base bottom surface flat smooth,
Corner carries fixing hole.
6. double light beam laser output device according to claim 1, it is characterised in that：The thermoelectric module is two-way electricity
Flow control type, refrigeration or heating are realized by sense of current by control.
7. double light beam laser output device according to claim 1, it is characterised in that：During the laser diode is uses
The a length of 785nm of cardiac wave laser diode.
8. double light beam laser output device according to claim 1, it is characterised in that：Also include and be arranged at package-side shell
The first fiber fixed seat and the second fiber fixed seat of body front end, the first described output optical fibre are arranged at the first optical fiber and fixed
Seat, second fiber fixed seat are arranged at the second fiber fixed seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205771.4A CN107872004A (en) | 2017-11-27 | 2017-11-27 | A kind of double light beam laser output device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711205771.4A CN107872004A (en) | 2017-11-27 | 2017-11-27 | A kind of double light beam laser output device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107872004A true CN107872004A (en) | 2018-04-03 |
Family
ID=61754706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711205771.4A Pending CN107872004A (en) | 2017-11-27 | 2017-11-27 | A kind of double light beam laser output device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107872004A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410750A (en) * | 2020-03-17 | 2021-09-17 | 潍坊华光光电子有限公司 | Double-beam semiconductor laser and manufacturing method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359178A (en) * | 2000-12-13 | 2002-07-17 | 日本电气株式会社 | Wavelength changeable light emitter and output control method and optical communication system |
| CN1719675A (en) * | 2004-07-06 | 2006-01-11 | 日本光进株式会社 | Optical module |
| CN205178260U (en) * | 2015-11-17 | 2016-04-20 | 山东圣达激光科技有限公司 | Semiconductor laser device of bi -polar fiber optic coupling output |
| CN107078457A (en) * | 2014-10-28 | 2017-08-18 | 住友电气工业株式会社 | Using the optical module and its assemble method of light source, optical modulator and wavelength detecting |
-
2017
- 2017-11-27 CN CN201711205771.4A patent/CN107872004A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1359178A (en) * | 2000-12-13 | 2002-07-17 | 日本电气株式会社 | Wavelength changeable light emitter and output control method and optical communication system |
| CN1719675A (en) * | 2004-07-06 | 2006-01-11 | 日本光进株式会社 | Optical module |
| CN107078457A (en) * | 2014-10-28 | 2017-08-18 | 住友电气工业株式会社 | Using the optical module and its assemble method of light source, optical modulator and wavelength detecting |
| CN205178260U (en) * | 2015-11-17 | 2016-04-20 | 山东圣达激光科技有限公司 | Semiconductor laser device of bi -polar fiber optic coupling output |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410750A (en) * | 2020-03-17 | 2021-09-17 | 潍坊华光光电子有限公司 | Double-beam semiconductor laser and manufacturing method thereof |
| CN113410750B (en) * | 2020-03-17 | 2022-07-12 | 潍坊华光光电子有限公司 | Double-beam semiconductor laser and manufacturing method thereof |
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Application publication date: 20180403 |
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| RJ01 | Rejection of invention patent application after publication |