CN205070150U - Output stable form fiber laser - Google Patents
Output stable form fiber laser Download PDFInfo
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- CN205070150U CN205070150U CN201520817743.8U CN201520817743U CN205070150U CN 205070150 U CN205070150 U CN 205070150U CN 201520817743 U CN201520817743 U CN 201520817743U CN 205070150 U CN205070150 U CN 205070150U
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Abstract
The utility model is suitable for a fiber laser technical field, the embodiment of the utility model provides an output stable form fiber laser, wherein, the input looks butt fusion of optic fibre laser unit's output and two cladded fiber beam splitters, two cladded fiber beam splitters are first output and the butt fusion of laser output ware looks wherein, the second output of two cladded fiber beam splitters and the photoelectric detection component looks butt fusion of tape trailer fibre, the fine photoelectric detection component of tape trailer is the signal of telecommunication with the light signal conversion who detects to spread into the signal of telecommunication into the processing circuit of connection, feed back to main control unit after handling by processing circuit. The embodiment of the utility model provides an it is on the low side or on the high side to guarantee to compare the standard value at the signal of telecommunication that detects, is then adjusted laser pump source's operating current by main control unit, unanimous with the standard value until the signal of telecommunication that the fine photoelectric detection component of tape trailer detected, can guarantee that the output of laser instrument is unchangeable.
Description
Technical field
The utility model belongs to fiber laser technology field, particularly relates to a kind of stable output power type fiber laser.
Background technology
Fiber laser is one of industrial processes laser of a new generation, has that volume is little, lightweight, good beam quality, an advantage such as non-maintaining, energy-conserving and environment-protective, has been widely used in the fields such as laser labelling, cutting, welding, Precision Machining, 3D printing.For some application scenarios, during as laser precision machining, laser 3D printing etc., very high to the stability requirement of laser output power, to guarantee the consistency of processing effect.In addition, the semiconductor pumping sources that fiber laser adopts, gain fibre, optical fibre device etc. used after a period of time, there will be performance degradation in various degree, caused the power output of laser also to have change to a certain degree.How making laser keep power stability within longer one period of operating time, is the technical barrier that high-capacity optical fiber laser commercial at present faces.
Utility model content
The object of the utility model embodiment is to provide a kind of stable output power type fiber laser, if to solve prior art this kind of highly reflective material of processing for a long time, very easily cause the problem of the damage of laser.
The utility model embodiment realizes like this, the utility model embodiment provides a kind of stable output power type fiber laser, described fiber laser is made up of optical-fiber laser unit, doubly clad optical fiber beam splitter, Laser output device, the band optical detection device of tail optical fiber, signal processing circuit and master controller, wherein
The output of described optical-fiber laser unit and the input phase welding of doubly clad optical fiber beam splitter; Doubly clad optical fiber beam splitter is the first output and the welding of Laser output device phase wherein, the second output of doubly clad optical fiber beam splitter and the optical detection device phase welding of band tail optical fiber; The light signal detected is converted to the signal of telecommunication by the optical detection device with tail optical fiber, and imports the described signal of telecommunication signal processing circuit of connection into; Master controller is fed back to by after described signal processing circuit process.
Preferably, the optical fiber of the input of described doubly clad optical fiber beam splitter, the first output and the second output is doubly clad optical fiber.
Preferably, described signal processing circuit comprises signal comparator, for the signal of telecommunication that will receive compared with the maximum signal of telecommunication of laser safety work, described comparative result gives described master controller by the link transmission between signal processing circuit and master controller.
Preferably, the optical fiber used is doubly clad optical fiber.
Preferably, described master controller comprises power governor, and described power governor is used for comparative result to be converted into power adjustment parameter, and is sent to optical-fiber laser unit by master controller.
Preferably, after described power adjustment parameter is received by described optical-fiber laser unit, with described power adjustment parameter for the power according to the work of adjustment pumping source.
The beneficial effect of a kind of stable output power type fiber laser that the utility model embodiment provides comprises: the fiber laser that the utility model embodiment provides can when fiber laser be in running order, the signal of telecommunication detected and standard value compare by the optical detection device with tail optical fiber, if two numerical value are basically identical, then laser normally works; If the signal of telecommunication comparison with standard value detected is on the low side or higher, then adjusted by the operating current of master controller to laser pump source, until the signal of telecommunication that the optical detection device of band tail optical fiber detects is consistent with standard value, can ensure that the power output of laser is constant.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of a kind of stable output power type fiber laser that the utility model embodiment provides;
Fig. 2 is the structural representation of a kind of stable output power type fiber laser that the utility model embodiment provides.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the utility model, and be not used in restriction the utility model.
In order to technical scheme described in the utility model is described, be described below by specific embodiment.
Embodiment one
Be illustrated in figure 1 that the utility model embodiment provides 1, a kind of stable output power type fiber laser, it is characterized in that, described fiber laser is made up of optical-fiber laser unit 1, doubly clad optical fiber beam splitter 2, Laser output device 3, the band optical detection device 4 of tail optical fiber, signal processing circuit 5 and master controller 6, wherein
The output of described optical-fiber laser unit 1 and the input phase welding of doubly clad optical fiber beam splitter 2; Doubly clad optical fiber beam splitter 2 is the first output and the welding of Laser output device 3 phase wherein, the second output of doubly clad optical fiber beam splitter 2 and the optical detection device 4 phase welding of band tail optical fiber; The light signal detected is converted to the signal of telecommunication by the optical detection device 4 with tail optical fiber, and imports the described signal of telecommunication signal processing circuit 5 of connection into; Master controller 6 is fed back to after being processed by described signal processing circuit 5.
Wherein, described first output has high splitting ratio (preferred, its splitting ratio is greater than 95%), the impact of doubly clad optical fiber beam splitter 2 on optical-fiber laser unit 1 power output can be down to reduced levels.
The fiber laser that the utility model embodiment provides can when fiber laser be in running order, and the signal of telecommunication detected and standard value compare by the optical detection device of band tail optical fiber, if two numerical value are basically identical, then laser normally works; If the signal of telecommunication comparison with standard value detected is on the low side or higher, then adjusted by the operating current of master controller to laser pump source, until the signal of telecommunication that the optical detection device of band tail optical fiber detects is consistent with standard value, can ensure that the power output of laser is constant.
In conjunction with the utility model embodiment, there is a kind of preferred scheme, wherein, the optical fiber of the input of described doubly clad optical fiber beam splitter 2, the first output and the second output is doubly clad optical fiber.
In conjunction with the utility model embodiment, there is a kind of preferred scheme, wherein, optical-fiber laser unit 1 comprises pumping source 11, the high reflective grid 12 of flashlight, gain fibre 13 and exports coupling grating 14, wherein, the input phase welding of coupling grating 14 and doubly clad optical fiber beam splitter 2 is exported.
In conjunction with the utility model embodiment, there is a kind of preferred scheme, wherein, described doubly clad optical fiber beam splitter 2 also comprises the 3rd optic fibre input end and/or the 4th optic fibre input end, for light path instruction and/or feedback signal process.
In conjunction with the utility model embodiment, there is a kind of preferred scheme, wherein, described signal processing circuit 5 comprises signal comparator 51, for the signal of telecommunication that will receive compared with the maximum signal of telecommunication of laser safety work, described comparative result gives described master controller 6 by the link transmission between signal processing circuit 5 and master controller 6.
In conjunction with the utility model embodiment, there is a kind of preferred scheme, wherein, the optical fiber used is doubly clad optical fiber.
In conjunction with the utility model embodiment, there is a kind of preferred scheme, wherein, described master controller 6 comprises power governor 61, and described power governor is used for comparative result to be converted into power adjustment parameter, and is sent to optical-fiber laser unit 1 by master controller 6.
In conjunction with the utility model embodiment, there is a kind of preferred scheme, wherein, after described power adjustment parameter is received by described optical-fiber laser unit 1, with the power of described power adjustment parameter for working according to adjustment pumping source 11.
Those of ordinary skill in the art it is also understood that, the all or part of step realized in above-described embodiment method is that the hardware that can carry out instruction relevant by program has come, described program can be stored in a computer read/write memory medium, described storage medium, comprises ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. a stable output power type fiber laser, it is characterized in that, described fiber laser is made up of optical-fiber laser unit (1), doubly clad optical fiber beam splitter (2), Laser output device (3), the band optical detection device (4) of tail optical fiber, signal processing circuit (5) and master controller (6), wherein
The output of described optical-fiber laser unit (1) and the input phase welding of doubly clad optical fiber beam splitter (2); Doubly clad optical fiber beam splitter (2) is the first output and Laser output device (3) phase welding wherein, the second output of doubly clad optical fiber beam splitter (2) and optical detection device (4) the phase welding of band tail optical fiber; The light signal detected is converted to the signal of telecommunication by the optical detection device (4) with tail optical fiber, and the described signal of telecommunication is imported into the signal processing circuit (5) of connection; Master controller (6) is fed back to after being processed by described signal processing circuit (5).
2. the fiber laser according to claims 1, is characterized in that, the optical fiber of the input of described doubly clad optical fiber beam splitter (2), the first output and the second output is doubly clad optical fiber.
3. fiber laser according to claim 1, it is characterized in that, optical-fiber laser unit (1) comprises pumping source (11), the high reflective grid (12) of flashlight, gain fibre (13) and exports coupling grating (14), wherein, coupling grating (14) and the input phase welding of doubly clad optical fiber beam splitter (2) is exported.
4. fiber laser according to claim 1, it is characterized in that, described signal processing circuit (5) comprises signal comparator (51), for the signal of telecommunication that will receive compared with the maximum signal of telecommunication of laser safety work, described comparative result gives described master controller (6) by the link transmission between signal processing circuit (5) and master controller (6).
5. fiber laser according to claim 1, is characterized in that, the optical fiber used is doubly clad optical fiber.
6. fiber laser according to claim 1, it is characterized in that, described master controller (6) comprises power governor (61), described power governor is used for comparative result to be converted into power adjustment parameter, and is sent to optical-fiber laser unit (1) by master controller (6).
7. fiber laser according to claim 6, is characterized in that, after described power adjustment parameter is received by described optical-fiber laser unit (1), with the power of described power adjustment parameter for working according to adjustment pumping source (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817743.8U CN205070150U (en) | 2015-10-21 | 2015-10-21 | Output stable form fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520817743.8U CN205070150U (en) | 2015-10-21 | 2015-10-21 | Output stable form fiber laser |
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| CN205070150U true CN205070150U (en) | 2016-03-02 |
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| CN201520817743.8U Active CN205070150U (en) | 2015-10-21 | 2015-10-21 | Output stable form fiber laser |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524874A (en) * | 2018-12-29 | 2019-03-26 | 武汉睿芯特种光纤有限责任公司 | A kind of method of gain fibre measuring device and the stability for measuring gain fibre output power |
-
2015
- 2015-10-21 CN CN201520817743.8U patent/CN205070150U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109524874A (en) * | 2018-12-29 | 2019-03-26 | 武汉睿芯特种光纤有限责任公司 | A kind of method of gain fibre measuring device and the stability for measuring gain fibre output power |
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