CN208782223U - Jointed fiber laser module - Google Patents
Jointed fiber laser module Download PDFInfo
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- CN208782223U CN208782223U CN201821588688.XU CN201821588688U CN208782223U CN 208782223 U CN208782223 U CN 208782223U CN 201821588688 U CN201821588688 U CN 201821588688U CN 208782223 U CN208782223 U CN 208782223U
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- optical fiber
- reflective grid
- active optical
- round plate
- laser module
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Abstract
A kind of jointed fiber laser module, including casing assembly and the optical path component being mounted in casing assembly；Casing assembly includes bottom cover and middle cover；Bottom cover includes the first round plate and the first epitaxy part for connecting the first round plate；The inside of first round plate is equipped with heat absobing channel, and heat absobing channel holds linear and spiral and is arranged；Optical path component includes pump combiner, several pumping sources and fiber resonance cavity；Fiber resonance cavity includes high reflective grid, Active Optical Fiber and low reflective grid；Active Optical Fiber includes receiver section and outgoing section, the high reflective grid of receiver section connection of Active Optical Fiber；The receiver section of Active Optical Fiber spiral corresponding with heat absobing channel is arranged and is accommodated in heat absobing channel.Linear and spiral is held by heat absobing channel to be arranged, the spiral setting corresponding with heat absobing channel of the receiver section of Active Optical Fiber, and it is accommodated in heat absobing channel, therefore there is biggish contact area between receiver section and the first round plate, to which under conditions of passive heat dissipation, the heat on Active Optical Fiber can quickly be conducted to the outer surface of bottom cover.
Description
Technical field
The utility model relates to Fiber laser technology fields, more particularly to a kind of jointed fiber laser module.
Background technique
Optical fiber laser with have it is small in size, light-weight, compact-sized flexibly, exempt from adjust, it is non-maintaining, high stability
Advantage can work in rugged environment, i.e., have very high tolerance to dust, oscillation, impact, humidity and temperature, this is
Conventional laser can not ratio.Some particular applications need it is highly integrated, require that small in size, light-weight, stability is good
Well, it exports in high-quality laser, such as laser gun, it is necessary to which module occurs for the high laser of integrated level.
Application of volume and weight issue the limitation optical fiber laser of laser in special dimension.Such as in laser gun,
It is required that laser will have higher integrated level, and weight demands are extremely low.
It needs to reduce the volume and weight of laser light source, traditional optical-fiber laser under the premise of guaranteeing laser performance
Device generallys use water cooling or the air-cooled type of cooling when laser output power reaches hectowatt grade, wherein using water-cooling pattern
Cooling laser needs water-cooled plate and water cooling unit, and air-cooled, radiator fan is utilized, two kinds of radiating modes considerably increase
The weight and volume of laser.
Utility model content
Based on this, it is necessary to cause the weight and volume of laser is biggish to ask for water cooling or the air-cooled type of cooling
Topic, provides a kind of jointed fiber laser module.
A kind of jointed fiber laser module, including casing assembly and the optical path component being mounted in the casing assembly；Institute
State the middle cover that casing assembly includes bottom cover and the connection bottom cover；The bottom cover includes the first round plate and connection described first
First epitaxy part of round plate；The inside of first round plate is equipped with heat absobing channel, and the heat absobing channel holds linear and spiral and is arranged；
The optical path component includes that beam is closed in pump combiner, several pumping sources of the connection pump combiner and the connection pumping
The fiber resonance cavity of device；The pumping source connects the input terminal of the pump combiner；The fiber resonance cavity includes connection institute
State the reflective grid of height of pump combiner output end, the Active Optical Fiber of the connection reflective grid of height and the connection Active Optical Fiber
Low reflective grid；The Active Optical Fiber includes receiver section and outgoing section, and the receiver section of the Active Optical Fiber connects the reflective grid of height；
Corresponding with the heat absobing channel spiral setting of the receiver section of the Active Optical Fiber, and the receiver section of the Active Optical Fiber be accommodated in it is described
In heat absobing channel.
Above-mentioned jointed fiber laser module is equipped with heat absobing channel by the inside of the first round plate, and heat absobing channel holds linear and spiral shell
Rotation setting, meanwhile, the spiral setting corresponding with heat absobing channel of the receiver section of Active Optical Fiber, and be accommodated in heat absobing channel, the weight of receiver section
It is limited and is spaced apart from each other by the first round plate at conjunction, therefore there is biggish contact surface between receiver section and the first round plate
Product, so that the heat on Active Optical Fiber can quickly be conducted to the outer surface of bottom cover under conditions of passive heat dissipation.
The middle cover includes the second round plate corresponding with first round plate and connects in one of the embodiments,
Connect the second epitaxy part of second round plate；Second epitaxy part is correspondingly arranged with first epitaxy part；It is described high anti-
Grating and the low reflective grid are mounted on the side on second round plate and backwards to first round plate；Second circle
Pan portion and first round plate overlapping connect.
Second round plate is equipped with through-hole in one of the embodiments, and the Active Optical Fiber passes through the through-hole
After connect the reflective grid of the height or the low reflective grid.
The casing assembly further includes the upper cover for being mounted on the middle cover side in one of the embodiments, it is described on
Lid is correspondingly arranged with the middle cover.
The material of the middle cover and the upper cover is magnesium alloy in one of the embodiments,.
The reflective grid of height are equipped with the first incidence end and reflection end in one of the embodiments, and the low reflective grid are set
There are the second incidence end and exit end, the first incidence end of the reflective grid of height connects the pump combiner, the reflective grid of height
Reflection end connect the receiver section of the Active Optical Fiber, the second incidence end of the low reflective grid connects going out for the Active Optical Fiber
Penetrate section.
The reflection end of the reflective grid of height and the junction of the Active Optical Fiber and described in one of the embodiments,
Second incidence end of low reflective grid and the junction of the Active Optical Fiber are attached with low refraction glue point.
The pump combiner includes the first pumping arm, the second pumping arm and signal arm in one of the embodiments,；Institute
The first pumping arm and the second pumping arm for stating pump combiner are separately connected the pumping source, and the end of the signal arm is as conjunction
Shu Duan connects the reflective grid of height.
The pumping source is semiconductor laser in one of the embodiments,.
The optical path component further includes the QBH tail optical fiber for connecting the low reflective grid in one of the embodiments, described
The input terminal of QBH tail optical fiber is connect with the low reflective grid exit end.
Detailed description of the invention
Fig. 1 is the stereoscopic schematic diagram of the jointed fiber laser module of a preferred embodiment of the utility model；
Fig. 2 is the decomposition diagram of jointed fiber laser module shown in FIG. 1；
Fig. 3 is decomposition diagram of the jointed fiber laser module shown in FIG. 1 in another angle；
Fig. 4 is the light channel structure figure of jointed fiber laser module；
Fiting relation figure of the Fig. 5 between heat absobing channel and the receiver section of Active Optical Fiber；
Fig. 6 is that the spectrum of jointed fiber laser module exports figure.
Specific embodiment
The utility model will be described more fully below for the ease of understanding the utility model,.But this is practical
It is novel to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations
The purpose of example is to make the understanding of the disclosure of the utility model more thorough and comprehensive.
Unless otherwise defined, all technical and scientific terms used herein are led with the technology for belonging to the utility model
The normally understood meaning of the technical staff in domain is identical.Terminology used in the description of the utility model herein only be
The purpose of description specific embodiment, it is not intended that in limitation the utility model.
Fig. 1 to Fig. 6 is please referred to, is the jointed fiber laser module 100 of one better embodiment of the utility model, for producing
Raw laser output.The jointed fiber laser module 100 includes casing assembly 20 and the optical path component being mounted in casing assembly 20
30；Casing assembly 20 includes bottom cover 21 and the middle cover 22 for connecting bottom cover 21；Bottom cover 21 includes the first round plate 211 and connection the
First epitaxy part 212 of one round plate 211；The inside of first round plate 211 is equipped with heat absobing channel 213, heat absobing channel 213 hold it is linear and
Spiral setting；Optical path component 30 includes pump combiner 31, several pumping sources 32 for connecting pump combiner 31 and connection pumping
The fiber resonance cavity of bundling device 31；The input terminal of the connection pump combiner 31 of pumping source 32；Fiber resonance cavity includes connection pumping
The reflective grid 331 of height of 31 output end of bundling device connect the Active Optical Fiber 332 of high reflective grid 331 and connect Active Optical Fiber 332
Low reflective grid 333；Active Optical Fiber 332 includes receiver section and outgoing section, the high reflective grid 331 of receiver section connection of Active Optical Fiber 332；
The spiral setting corresponding with heat absobing channel 213 of the receiver section of Active Optical Fiber 332, and the receiver section of Active Optical Fiber 332 is accommodated in heat absobing channel
In 213.
It is equipped with heat absobing channel 213 by the inside of the first round plate 211, heat absobing channel 213 holds linear and spiral and is arranged, meanwhile,
The spiral setting corresponding with heat absobing channel 213 of the receiver section of Active Optical Fiber 332, and be accommodated in heat absobing channel 213, the overlapping position of receiver section
It is limited and is spaced apart from each other by the first round plate 211, therefore there is biggish contact surface between receiver section and the first round plate 211
Product, so that the heat on Active Optical Fiber 332 can quickly be conducted to the outer surface of bottom cover 21, had under conditions of passive heat dissipation
Effect reduces the weight and volume of laser.
Referring to Fig. 2, be the area of effectively control jointed fiber laser module 100 in a wherein embodiment, in
Lid 22 includes second round plate 221 corresponding with the first round plate 211 and the second epitaxy part for connecting the second round plate 221
222；Second epitaxy part 222 is correspondingly arranged with the first epitaxy part 212；High reflective grid 331 and low reflective grid 333 are mounted on the second circle
Side in pan portion 221 and backwards to the first round plate 211；Second round plate 221 and the first round plate 211 overlapping connect, due to
High reflective grid 331 and low reflective grid 333 are mounted on the side of the second round plate 221, enable high reflective grid 331, low reflective grid 333 can
It is Chong Die with Active Optical Fiber 332, to can avoid increasing the area of bottom cover 21 because installing high reflective grid 331 and low reflective grid 333
Greatly, due to being isolated between high reflective grid 331, low reflective grid 333 and Active Optical Fiber 332 by the second round plate 221, so as to
Reduce the heat dissipation of Active Optical Fiber 332 influences on caused by high reflective grid 331 and low reflective grid 333；In the present embodiment, it pumps
The setting of source 32 is in 20 outside of casing assembly, and the tail optical fiber coupled with pumping source 32 enters casing assembly by the second epitaxy part 222
In 20, to keep the optical path in casing assembly 20 succinct, pump combiner 31 is mounted on the second epitaxy part 222, thus reduce with
The development length for the tail optical fiber that pumping source 32 couples.
Please refer to figs. 2 and 3, in a wherein embodiment, facilitates Active Optical Fiber 332 and high reflective grid 331, low anti-
The connection of grating 333, the second round plate 221 are equipped with through-hole 223, and Active Optical Fiber 332 connects high reflective grid after passing through through-hole 223
331 or low reflective grid 333.
It is to the reflective grid 331 of height, low reflective grid 333 and the pump being mounted on middle cover 22 in a wherein embodiment
Pu bundling device 31 provides protection, and casing assembly 20 further includes the upper cover 23 for being mounted on 22 side of middle cover, and upper cover 23 and middle cover 22 are right
It should be arranged；Specifically, the edge of middle cover 22 is bonded setting with the edge of upper cover 23, to make high reflective grid 331, low reflective grid
333 and pump combiner 31 be sealed in middle cover 22.
In a wherein embodiment, to reduce the weight of jointed fiber laser module 100 and guaranteeing casing assembly 20
To the heat dissipation effect of optical path component 30, the material of middle cover 22 and upper cover 23 is magnesium alloy.
Referring to Fig. 4, Gao Fanguang grid 331 are equipped with the first incidence end and reflection end, low anti-in a wherein embodiment
Grating 333 is equipped with the second incidence end and exit end, and the first incidence end of Gao Fanguang grid 331 connects pump combiner 31, Gao Fanguang
The receiver section of the reflection end connection Active Optical Fiber 332 of grid 331, the second incidence end connection Active Optical Fiber 332 of low reflective grid 333
It is emitted section；Specifically, Active Optical Fiber 332 is used as gain media, for receiving the pump light of the output of pump combiner 31, active light
The Double Cladding Ytterbium Doped Fiber that fibre 332 is 12/250 using specification；Specifically, the pump light that pumping source 32 generates is through pump combiner
After 31 close beam, the high reflective grid 331 of transmission enter Active Optical Fiber 332, and the pump light after 332 pairing beam of Active Optical Fiber is absorbed,
And the laser signal of respective wavelength is generated, and export through low reflective 333 part of grid；High reflective grid 331 refer to the high light of reflectivity
Fine grating is mainly used for reflecting amplified laser signal, and laser signal to be reflected injects high reflective grid by its reflection end
331 reflection component, the laser signal after the reflection component reflection of high reflective grid 331 are projected also by its reflection end；It is optional
Ground, the reflectivity of Gao Fanguang grid 331 are 99.5%；Low reflective grid 333 refer to the low fiber grating of reflectivity, and it is anti-to be also used for part
Amplified laser signal is penetrated, laser signal to be reflected injects the reflection component of low reflective grid 333 by the second incidence end, warp
Laser signal after the reflection component reflection of low reflective grid 333 is reflected also by its second incidence end part, and not reflected swashs
Optical signal is then projected from its exit end；Optionally, the reflectivity of low reflective grid 333 is 10%；Optionally, Gao Fanguang grid 331 and
Low reflective grid 333 are the chirp grating inscribed in 12/250 doubly clad optical fiber.
In a wherein embodiment, to guarantee that pump light does not leak out optical fiber, the reflection end of Gao Fanguang grid 331 with have
The junction of second incidence end of the junction of source optical fiber 332 and low reflective grid 333 and Active Optical Fiber 332 is attached with low refraction
Glue point；Specifically, the junction of the first incidence end of the reflective grid 331 of conjunction Shu Duanyu high of pump combiner 31 is also attached with low folding
Injection point.
In a wherein embodiment, pump combiner 31 includes the first pumping arm, the second pumping arm and signal arm；Pump
The first pumping arm and the second pumping arm of Pu bundling device 31 are separately connected pumping source 32, and the end of signal arm is as Shu Duan is closed, even
Connect high reflective grid 331；Specifically, the first pumping arm, the doubly clad optical fiber that the second pumping arm is 105/125um, core diameter
It is 105um, cladding diameter is 125um；Signal arm is the doubly clad optical fiber of 12/250um, and core diameter is 12um, and covering is straight
Diameter is 250um；The pump light that pumping source 32 generates is coupled in the inner cladding of signal arm by pumping arm.
In a wherein embodiment, pumping source 32 is semiconductor laser；It in the present embodiment, is realization 70w
The output of jointed fiber laser, the quantity of pumping source 32 are two, and the first pumping arm and the second pumping arm are separately connected pumping source 32,
The power of pumping source 32 is 85w, wavelength 915nm.
In a wherein embodiment, swash to avoid the laser signal being emitted from low reflective grid 333 from being reflected back toward optical fiber
In optical cavity, optical path component 30 further includes the QBH tail optical fiber 34 for connecting low reflective grid 333, the input terminal of QBH tail optical fiber 34 and low anti-
The connection of 333 exit end of grating；Specifically, QBH tail optical fiber 34 is 12/250 optical fiber, and is arranged in 20 outside of casing assembly.
In a wherein embodiment, to filter out unabsorbed pump light, guarantee the beam quality of output laser,
The junction of the input terminal of QBH tail optical fiber 34 and low reflective 333 exit end of grid is attached with low refraction glue point.
Jointed fiber laser module 100 at runtime, since the receiver section of Active Optical Fiber 332 is close to pumping source 32, therefore light
The major heat of road component 30 concentrates on the receiver section of Active Optical Fiber 332, since 213 spiral of heat absobing channel is arranged in the first disk
211 inside of portion, the receiver section of Active Optical Fiber 332 is accommodated in heat absobing channel 213, therefore heat absobing channel 213 has biggish contact area,
It is come into full contact with the surface of the receiver section of Active Optical Fiber 332, heat caused by the receiver section of Active Optical Fiber 332 can be transmitted sufficiently
Onto bottom cover 21, so as to which the radiating efficiency of Active Optical Fiber 332 is effectively ensured；In the present embodiment, the extension of heat absobing channel 213
Length is 3m.
Specifically, the inside of the first round plate 211 is extended with positioning ring 214, and the outgoing section of Active Optical Fiber 332 is successively coiled
It, can be according to the length hierarchical overlay of outgoing section, to avoid extending because of heat absobing channel 213 between positioning ring 214 and heat absobing channel 213
Length is too long, and causes the volume of casing assembly 20 excessive, while guaranteeing to be emitted section also available effective heat dissipation；To guarantee
To the heat dissipation effect of Active Optical Fiber 332, bottom cover 21 uses aluminum alloy material.It further, is reduction jointed fiber laser
First extension of weight, bottom cover 21 is equipped with vacant slot 215；Specifically, Active Optical Fiber 332 is that the double clad of 12/250um is mixed
Ytterbium optical fiber.
Referring to Fig. 6, the jointed fiber laser module 100 of the utility model can by Weight control 1.3KG once, at this
In the case where kind light weight small size, output power is up to 73.8W；Spectral centroid wavelength is 1080.56nm, and 3dB spectrum width is
1.30nm is able to maintain and exports compared with narrow linewidth；During continuously opening the light 3 minutes, output power rises to from 73.45W
73.83W, power swing is less than 1%.
In the present embodiment, heat absobing channel is equipped with by the inside of the first round plate, heat absobing channel holds linear and spiral and is arranged, together
When, the receiver section of Active Optical Fiber corresponding with heat absobing channel spiral setting, and being accommodated in heat absobing channel, the overlapping position of receiver section is by the
The limitation of one round plate and be spaced apart from each other, therefore between receiver section and the first round plate have biggish contact area, thus in quilt
Under conditions of dynamic heat dissipation, the heat on Active Optical Fiber can quickly be conducted to the outer surface of bottom cover.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
Above-described embodiments merely represent several embodiments of the utility model, the description thereof is more specific and detailed,
But it cannot be understood as the limitations to utility model patent range.It should be pointed out that for the common skill of this field
For art personnel, without departing from the concept of the premise utility, various modifications and improvements can be made, these are belonged to
The protection scope of the utility model.Therefore, the scope of protection shall be subject to the appended claims for the utility model patent.
Claims (10)
1. a kind of jointed fiber laser module, which is characterized in that including casing assembly and the light being mounted in the casing assembly
Road component；The casing assembly includes the middle cover of bottom cover and the connection bottom cover；The bottom cover includes the first round plate and connects
Connect the first epitaxy part of first round plate；The inside of first round plate is equipped with heat absobing channel, and the heat absobing channel holds threadiness
And spiral is arranged；The optical path component includes pump combiner, several pumping sources of the connection pump combiner and connection institute
State the fiber resonance cavity of pump combiner；The pumping source connects the input terminal of the pump combiner；The fiber resonance cavity
Including connecting described in the reflective grid of height, the Active Optical Fiber for connecting the reflective grid of height and the connection of the pump combiner output end
The low reflective grid of Active Optical Fiber；The Active Optical Fiber includes receiver section and outgoing section, and the receiver section of the Active Optical Fiber connects institute
State high reflective grid；The spiral setting corresponding with the heat absobing channel of the receiver section of the Active Optical Fiber, and the reception of the Active Optical Fiber
Section is accommodated in the heat absobing channel.
2. jointed fiber laser module according to claim 1, which is characterized in that the middle cover includes and described first justifies
Second epitaxy part of corresponding second round plate of pan portion and connection second round plate；Second epitaxy part and described the
One epitaxy part is correspondingly arranged；The reflective grid of height and the low reflective grid are mounted on second round plate and backwards to described the
The side of one round plate；Second round plate and first round plate overlapping connect.
3. jointed fiber laser module according to claim 2, which is characterized in that second round plate is equipped with logical
Hole, the Active Optical Fiber connect the reflective grid of the height or the low reflective grid after passing through the through-hole.
4. jointed fiber laser module according to claim 2, which is characterized in that the casing assembly further includes being mounted on
The upper cover of the middle cover side, the upper cover are correspondingly arranged with the middle cover.
5. jointed fiber laser module according to claim 4, which is characterized in that the material of the middle cover and the upper cover
For magnesium alloy.
6. jointed fiber laser module according to claim 1, which is characterized in that it is incident that the reflective grid of height are equipped with first
End and reflection end, the low reflective grid are equipped with the second incidence end and exit end, and the first incidence end of the reflective grid of height connects institute
State pump combiner, the reflection end of the reflective grid of height connects the receiver section of the Active Optical Fiber, and the second of the low reflective grid
Incidence end connects the outgoing section of the Active Optical Fiber.
7. jointed fiber laser module according to claim 6, which is characterized in that the reflection end of the reflective grid of height and institute
The junction and the second incidence end of the low reflective grid and the junction of the Active Optical Fiber for stating Active Optical Fiber are attached with low folding
Injection point.
8. jointed fiber laser module according to claim 6, which is characterized in that the pump combiner includes the first pump
Pu arm, the second pumping arm and signal arm；The first pumping arm and the second pumping arm of the pump combiner are separately connected the pump
Pu source, the end of the signal arm connect the reflective grid of height as Shu Duan is closed.
9. jointed fiber laser module according to claim 8, which is characterized in that the pumping source is semiconductor laser
Device.
10. jointed fiber laser module according to claim 6, which is characterized in that the optical path component further includes connection
The QBH tail optical fiber of the low reflective grid, the input terminal of the QBH tail optical fiber are connect with the low reflective grid exit end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588688.XU CN208782223U (en) | 2018-09-28 | 2018-09-28 | Jointed fiber laser module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821588688.XU CN208782223U (en) | 2018-09-28 | 2018-09-28 | Jointed fiber laser module |
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| Publication Number | Publication Date |
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| CN208782223U true CN208782223U (en) | 2019-04-23 |
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| CN201821588688.XU Active CN208782223U (en) | 2018-09-28 | 2018-09-28 | Jointed fiber laser module |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103735A (en) * | 2018-09-28 | 2018-12-28 | 深圳市杰普特光电股份有限公司 | Jointed fiber laser module |
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2018
- 2018-09-28 CN CN201821588688.XU patent/CN208782223U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109103735A (en) * | 2018-09-28 | 2018-12-28 | 深圳市杰普特光电股份有限公司 | Jointed fiber laser module |
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