CN208835441U - A kind of optical fiber laser of more oscillator structures - Google Patents
A kind of optical fiber laser of more oscillator structures Download PDFInfo
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- CN208835441U CN208835441U CN201821122542.6U CN201821122542U CN208835441U CN 208835441 U CN208835441 U CN 208835441U CN 201821122542 U CN201821122542 U CN 201821122542U CN 208835441 U CN208835441 U CN 208835441U
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Abstract
The utility model provides a kind of optical fiber laser of more oscillator structures, it includes fibre laser oscillator combination, fiber coupler, fibre optic isolater and the optical fiber laser amplifier of multiple and different configurations.For different applications, system selects some specific laser oscillator module work using software setting, other laser oscillator modules are simultaneously closed off, the seed laser selected passes through the power amplification of rear class optical fiber laser amplifier, realizes the function that setting laser has.For this system compared with the optical fiber laser of more simple functions, function is richer, and cost is less expensive, and volume is more compact, and switching is more convenient, can be widely applied to the processing of various metals and nonmetallic materials.
Description
Technical field
The present invention relates to technical field of optical fiber and laser technology field, are related specifically to optical fiber laser and a variety of materials
Field of laser processing.
Background technique
Optical fiber laser is the laser using the optical fiber of rare earth doped element as gain media, different dilute by adulterating
Earth elements, such as ytterbium (Yb), erbium (Er), thulium (Tm), holmium (Ho), neodymium (Nd), the laser output of Lai Shixian different operating wave band.With
Other lasers are compared, and optical fiber laser has operation threshold low, and energy transformation ratio is high, output beam quality is good, compact-sized
Stablize, without optical path adjustment, perfect heat-dissipating, service life be long and the distinguishing features such as Maintenance free, therefore be rapidly developed with extensively
General application.
In industrial application, high power jointed fiber laser is welded commonly used to completion Metal Cutting, metal, at surface
Reason and 3D printing etc..Nanosecond pulse optical fiber laser is then commonly used to complete metal marking, film removing, metal cleaning, gold
Belong to deep carving etc..With deeply being segmented with industry for optical fiber laser application, the sensitive material pair of some pairs of laser processing heat affectings
More stringent requirements are proposed for the pulse width of optical-fiber laser, it is desirable that pulsewidth is shorter, and peak power is higher, in this context, ultrafast
Laser is got growing concern for and application and development.Pulse duration range is had already appeared in the market picoseconds (10-12Or femtosecond s)
(10-15S) optical fiber laser, ceramics, liquid-crystalline glasses, sapphire cutting, the punching etc. being widely used in consumer electronics industry
In various retrofits.
It can be seen that being directed to different applications, user needs to select the laser of different parameters performance.As buying side,
For the needs for saving cost, it is desirable to reduce the total quantity of buying machine as far as possible.Opposite is used as manufacturer, for abundant production
The idea of product function can also generate unavoidably and the laser of different performance is integrated into an equipment on an either laser
Idea, the direct effect done so be expand product application, improve its service efficiency.
There are such product, such as high power jointed fiber laser on the market, has just had continuous light and tune out
Two kinds of working conditions of pulsed light are produced, can be realized different applications.But the width of pulse laser is usually in microsecond
Magnitude or broader millisecond magnitude, can not substitute widely used nanosecond pulse optical fiber laser on the market, use still tool
There is certain limitation.In addition to this, the other kinds of laser for integrating multiple functions is also rarely found.
Utility model content
For limitation of the various lasers common on the market in respective use occasion, the present inventor is by deeply grinding
Study carefully, after having paid sufficient creative work, proposes a kind of thinking for the optical fiber laser of more oscillator structures of novelty
Method, and research and development realize this laser.It can flexibly use the advantages of optical fiber laser, to multiple oscillators of laser
It is controlled, uses different oscillator modules in different application, then cooperate common fiber amplifier at different levels, to choosing
The seed laser of oscillator output carries out multistage amplification, reaches corresponding mean power, realizes designed each different function
Can, meet the needs of various different applications.
The technical scheme is that prepare multiple oscillator modules simultaneously in fiber ring laser system, their work
Make state by corresponding control circuit to determine, by specific optical fiber coupling device, connects the amplifier of rear class jointly；Amplification
Device uses the optical fiber laser of common MOPA structure, can carry out power amplification to the oscillator of prime, reach using needs
Mean power.
In use, for different applications, the oscillator operation of selection different function module is set by software,
Simultaneously close off the work of other oscillators.The oscillator for obtaining simple function in this way, by the power amplification of fiber amplifier,
Realize the function that setting laser has.
By adopting the above-described technical solution, the beneficial effects of the present invention are:
1. the present invention selects different oscillators, the laser performance index of different characteristics can be finally obtained, is realized not
With the application of occasion, feature-rich degree is higher than the laser of any separate unit.
2. the summation that complete machine cost of the invention is far below this several different characteristics lasers.
3. the summation that machine volume of the invention is much smaller than this several different characteristics lasers.
4. laser function switch of the invention uses software control, the hardware device of compared with several different characteristics lasers
Switching, using more convenient.
Detailed description of the invention
Fig. 1 is the schematic diagram of the fiber ring laser system of more oscillator structures
Wherein each mark number has following meaning:
1. oscillator module
2. fiber coupler
3. fibre optic isolater
4. fiber amplifier
Specific embodiment
Present invention will be further explained below with reference to specific examples.
Embodiment 1
The present embodiment is connected two oscillators using the fiber coupler of a 50:50, and an oscillator is by pulse electricity
The 1064nm semiconductor laser tube of stream driving is constituted, and output oscillator laser technical indicator is: 1~5mW of mean power, pulsewidth 5
~350ns, pulse recurrence frequency 1kHz~1MHz；Another oscillator is by a gain switch 1064nm semiconductor laser tube
It constitutes, output oscillator laser technical indicator is: mean power 1mW, 50~2000ps of pulsewidth, pulse recurrence frequency 50MHz~
1GHz；Common end exports the optical fiber laser amplifier for being coupled to MOPA structure, and output mean power is 100W.
When selecting the 1064nm semiconductor laser tube functional module of pulse current driving, laser complete machine is exactly one normal
The pulse optical fiber of the MOPA structure of rule, can be applied to the marking of a variety of materials；As selection gain switch 1064nm half
When conductor Laser pipe functional module, laser complete machine is exactly an automatically controlled Picopulse optical fiber laser, each in addition to being applied to
Outside the marking of kind metal material, moreover it is possible to handle the processing (such as sapphire and silicon chip of solar cell) of some fragile materials.
In the present embodiment, the optical fiber laser of this two-in-one double oscillator structure, volume only has two lasers
Half, price is only close to the unit price of a wherein picosecond laser, but the application being adapted to is more extensive, and
Function switch is not needed to replace different lasers by software realization.
Embodiment 2
The present embodiment is connected two oscillators using the fiber coupler of a 50:50, and an oscillator is by pulse electricity
The 1064nm semiconductor laser tube of stream driving is constituted, and output oscillator laser technical indicator is: 1~5mW of mean power, pulsewidth 5
~350ns, pulse recurrence frequency 1kHz~1MHz；Another oscillator is made of a mode locking picosecond optical fiber laser, defeated
Oscillator laser technical indicator is out: mean power 100mW, pulsewidth 5ps, pulse recurrence frequency 200MHz；Common end exports again
It is connected to the optical fiber laser amplifier of MOPA structure, output mean power is 20W.
When selecting the 1064nm semiconductor laser tube functional module of pulse current driving, laser complete machine is exactly one normal
The pulse optical fiber of the MOPA structure of rule, can be applied to the marking of a variety of materials；When selection mode locking picosecond optical-fiber laser
When device functional module, laser complete machine is exactly a passive mode-locking Picopulse optical fiber laser, in addition to being applied to a variety of materials
Marking outside, moreover it is possible to handle some retrofits (such as cutting of copper foil) and the processing of fragile material (such as liquid crystal glass
Glass).
In the present embodiment, the optical fiber laser of this two-in-one double oscillator structure, volume only has two lasers
Half, price is only close to the unit price of a wherein picosecond laser, but the application being adapted to is more extensive, and
Function switch is not needed to replace different lasers by software realization.
Embodiment 3
Two oscillators are connected using the fiber coupler of a 50:50 in the present embodiment, an oscillator is by pulse
The 1064nm semiconductor laser tube of electric current driving is constituted, and output oscillator laser technical indicator is: 1~5mW of mean power, pulsewidth
5~350ns, pulse recurrence frequency 1kHz~1MHz；Another oscillator is made of a jointed fiber laser, output vibration
Swinging device laser technology index is: mean power 100mW, central wavelength 1064nm；Common end exports the light for being coupled to MOPA structure
Fine laser amplifier, output mean power are 100W.
When selecting the 1064nm semiconductor laser tube functional module of pulse current driving, laser complete machine is exactly one normal
The pulse optical fiber of the MOPA structure of rule can be applied to metal cleaning, metal welding, metal carving deeply；It is continuous when selecting
When optical fiber laser functional module, laser complete machine is exactly a 100W jointed fiber optical fiber laser, can be used for weld and
The application such as Treatment of Metal Surface.
It should be appreciated that the purposes of these embodiments is merely to illustrate the present invention and is not intended to limit protection model of the invention
It encloses.In addition, it should also be understood that, after reading the technical contents of the present invention, those skilled in the art can make the present invention each
Kind change, modification and/or variation, all these equivalent forms equally fall within guarantor defined by the application the appended claims
Within the scope of shield.
Claims (6)
1. a kind of optical fiber laser of more oscillator structures, it is characterised in that include fibre laser oscillator combination, fiber coupling
The fiber amplifier of device, fibre optic isolater and multistage:
Fibre laser oscillator combination, for generating multiple seed lasers, each not phase of the technical parameter of each seed laser
Together, but it is connect with the fiber coupler of rear class；
The fiber coupler, front end connect each seed laser, and rear end connects fibre optic isolater；
The fibre optic isolater, front end connect fiber coupler, and rear end connects fiber amplifier.
2. a kind of optical fiber laser of more oscillator structures as described in claim 1, it is characterised in that: the optical-fiber laser vibration
Swing semiconductor laser, the gain switch type semiconductor that device type is selected from Q impulse optical fiber laser, nanosecond pulse electric current drives
Laser, jointed fiber laser, picosecond optical fiber laser or femto second optical fiber laser.
3. a kind of optical fiber laser of more oscillator structures as described in claim 1, it is characterised in that: the fiber coupler
Type be selected from output coupler, wavelength division multiplexer, polarization beam combiner or fiber-optical switch.
4. a kind of optical fiber laser of more oscillator structures as described in claim 1, it is characterised in that: the optical fiber of the multistage
Amplifier replaces with single-stage optical fiber laser amplifier.
5. a kind of optical fiber laser of more oscillator structures as described in claim 1, it is characterised in that: the fiber type choosing
From single cladded-fiber, doubly clad optical fiber or multi-clad.
6. a kind of optical fiber laser of more oscillator structures as described in claim 1, it is characterised in that: the fiber type choosing
From polarization maintaining optical fibre or non PM fiber.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821122542.6U CN208835441U (en) | 2018-07-13 | 2018-07-13 | A kind of optical fiber laser of more oscillator structures |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821122542.6U CN208835441U (en) | 2018-07-13 | 2018-07-13 | A kind of optical fiber laser of more oscillator structures |
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| CN208835441U true CN208835441U (en) | 2019-05-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115579722A (en) * | 2022-11-22 | 2023-01-06 | 深圳市星汉激光科技股份有限公司 | Mixed pumping laser system of uniform coupling laser |
-
2018
- 2018-07-13 CN CN201821122542.6U patent/CN208835441U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115579722A (en) * | 2022-11-22 | 2023-01-06 | 深圳市星汉激光科技股份有限公司 | Mixed pumping laser system of uniform coupling laser |
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