CN202421540U - Power beam combiner for high-power optical fiber laser - Google Patents
Power beam combiner for high-power optical fiber laser Download PDFInfo
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- CN202421540U CN202421540U CN2012200097639U CN201220009763U CN202421540U CN 202421540 U CN202421540 U CN 202421540U CN 2012200097639 U CN2012200097639 U CN 2012200097639U CN 201220009763 U CN201220009763 U CN 201220009763U CN 202421540 U CN202421540 U CN 202421540U
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- optical fiber
- fiber laser
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Abstract
The utility model relates to a power beam combiner for a high-power optical fiber laser, which comprises a concave reflecting mirror, a plane reflecting mirror and an output collimating mirror. The power beam combiner for the high-power optical fiber laser is characterized in that the concave reflecting mirror, the plane reflecting mirror and the output collimating mirror are arranged together through a mechanical base, the concave reflecting mirror is used for converging a plurality of optical fiber laser beams, the plane reflecting mirror is used for reflecting the converged optical fiber laser beams, and the output collimating mirror is arranged on an optical fiber laser beam converging point and used for collimating and outputting the converged optical fiber laser beams. The power beam combiner for the high-power optical fiber laser can realize the combination and the output of a different number of optical fiber laser beams effectively through easy inserting and extracting and has the characteristics of compact structure, high optical fiber laser beam combination efficiency, stability and reliability.
Description
Technical field:
The utility model belongs to the fiber laser technology field, is used for the synthetic and output with the multiple beams of optical fiber laser instrument, reaches the power that the purpose that improves the fiber laser output power is used for high-capacity optical fiber laser and closes bundle.
Background technology:
Fiber laser is the third generation new laser behind traditional gas laser and solid state laser; Have advantages such as compact conformation, life-span are long, non-maintaining, good beam quality, energy-conserving and environment-protective, be successfully applied to fields such as industrial processes, publication and printing, health care, military and national defense.Along with the continuous expansion of its application, the output power of fiber laser is had higher requirement, like the cut and the welding of thick sheet metal in the shipbuilding industry, the power that requires laser instrument usually is more than 10kW.
For fiber laser, because the restriction of physical mechanisms such as nonlinear effect in the doped fiber and fire damage, the further lifting of simple optical fiber output power is difficulty very, and ripe at present single fiber laser instrument product power is generally in 500W.
For improving the output power of fiber laser, this just need be combined into a branch of output with a plurality of fiber lasers, mainly contains relevant synthetic and incoherent synthetic two kinds of methods.The relevant composite structure of fiber laser is comparatively complicated, and is difficult for regulating, and is not suitable for being applied in the high-capacity optical fiber laser product.The incoherent synthetic of fiber laser mainly contains raster method, bragg volume raster method etc., but to the accuracy requirement of total system higher and less stable.
Summary of the invention:
The utility model has proposed a kind of power bundling device that is used for high-capacity optical fiber laser of integrated design for solving the technical matters that exists in the background technology, and simple plug can realize that the multiple beams of optical fiber laser beam closes synthetic and output.
The technical scheme of the utility model is:
The power bundling device that is used for high-capacity optical fiber laser; Comprise concave mirror, plane mirror and output collimating mirror; It is characterized in that: concave mirror, plane mirror and output collimating mirror are installed three elements as a whole through mechanical base; And concave mirror is assembled the multiple beams of optical fiber laser beam, through a plane mirror convergent beam is reflected again, places one at beam convergence point at last and exports collimation lens and convergent beam is collimated and export.
Described concave mirror and plane mirror, its reflection wavelength is selected according to the wavelength of input optical fibre laser instrument, and reflectivity should be more than 99.5%.Like the input optical fibre laser instrument is ytterbium-doping optical fiber laser, then concave mirror and plane mirror to the reflectivity of 1.0-1.1 μ m laser all more than 99.5%.
Described concave mirror is at central opening, as the laser output channel.
Described plane mirror, it is inboard to be positioned at the concave reflection mirror foci, is less than or equal to the half the of concave mirror focal length with the distance of concave mirror, will assemble laser beam and reflect post-concentration at concave mirror open outer side or opening part.
Described output collimating mirror, its transmission peak wavelength is selected according to the wavelength of input optical fibre laser instrument, and transmissivity should be more than 99.5%.Like the input optical fibre laser instrument is ytterbium-doping optical fiber laser, described output collimating mirror then to the transmissivity of 1.0-1.1 μ m laser more than 99.5%.
Described output collimating mirror is positioned at 10mm place, the laser convergence point outside.
Description of drawings:
Fig. 1 is the fundamental diagram of the utility model.
Fig. 2 is the structural representation of the utility model.
Fig. 3 restraints the simulation drawing that light synthesize for employing the utility model to 12.
Fig. 4 focuses on the energy profile of back hot spot for the synthetic light beam that adopts the utility model.
Embodiment:
In conjunction with accompanying drawing the utility model is further described.
Like Fig. 1, shown in Figure 2; The utility model comprises concave mirror 2, plane mirror 1 and output collimating mirror 3; Concave mirror 2, plane mirror 1 and output collimating mirror 3 are installed three elements as a whole through mechanical base; And concave mirror 2 is assembled the multiple beams of optical fiber laser beam, reflects through 1 pair of convergent beam of a plane mirror again, places one at beam convergence point at last and exports 3 pairs of convergent beams of collimation lens and collimate and export.Described concave mirror and plane mirror, its reflection wavelength is selected according to the wavelength of input optical fibre laser instrument, and reflectivity should be more than 99.5%.Like the input optical fibre laser instrument is ytterbium-doping optical fiber laser, then concave mirror and plane mirror to the reflectivity of 1.0-1.1 μ m laser all more than 99.5%.Described concave mirror is at central opening, as the laser output channel.
Described plane mirror, it is inboard to be positioned at the concave reflection mirror foci, and plane mirror and concave mirror distance are 125mm.Described output collimating mirror, its transmission peak wavelength is selected according to the wavelength of input optical fibre laser instrument, and transmissivity should be more than 99.5%.Like the input optical fibre laser instrument is ytterbium-doping optical fiber laser, described output collimating mirror then to the transmissivity of 1.0-1.1 μ m laser more than 99.5%.
Another embodiment is positioned at described output collimating mirror in 10mm place, the laser convergence point outside.
To import 12 bundle 1000W light beams is example, and light beam is that the circumference of 12mm evenly distributes along radius, every bundle light diameter 3mm, and adjacent two-beam spacing is about 6.2mm.The concave mirror focal length is-250mm, and plane mirror and its distance be 125mm, adopt the output collimating mirror of 9.44mm focal length after, the light beam that can obtain radius as shown in Figure 3 and be 0.6mm is exported.After adopting the lens of focal length 4.14mm to focus on subsequently, the focal beam spot energy distribution is as shown in Figure 4, and the central point power density is 5.4211 * 10
11W/cm
2
Claims (8)
1. the power bundling device that is used for high-capacity optical fiber laser; Comprise concave mirror, plane mirror and output collimating mirror; It is characterized in that: concave mirror, plane mirror and output collimating mirror are installed three elements as a whole through mechanical base; And concave mirror is assembled the multiple beams of optical fiber laser beam, through a plane mirror convergent beam is reflected again, places one at beam convergence point at last and exports collimation lens and convergent beam is collimated and export.
2. the power bundling device that is used for high-capacity optical fiber laser according to claim 1 is characterized in that: described concave mirror and plane mirror, and its reflection wavelength is selected according to the wavelength of input optical fibre laser instrument, and reflectivity should be more than 99.5%.
3. the power bundling device that is used for high-capacity optical fiber laser according to claim 2; It is characterized in that: like the input optical fibre laser instrument is ytterbium-doping optical fiber laser, then concave mirror and plane mirror to the reflectivity of 1.0-1.1 μ m laser all more than 99.5%.
4. the power bundling device that is used for high-capacity optical fiber laser according to claim 1 and 2 is characterized in that: described concave mirror, and at central opening, as the laser output channel.
5. the power bundling device that is used for high-capacity optical fiber laser according to claim 1 and 2; It is characterized in that: described plane mirror; It is inboard to be positioned at the concave reflection mirror foci; Be less than or equal to the half the of concave mirror focal length with the distance of concave mirror, will assemble laser beam reflection post-concentration at concave mirror open outer side or opening part.
6. the power bundling device that is used for high-capacity optical fiber laser according to claim 1 is characterized in that: described output collimating mirror, and its transmission peak wavelength is selected according to the wavelength of input optical fibre laser instrument, and transmissivity should be more than 99.5%.
7. the power bundling device that is used for high-capacity optical fiber laser according to claim 6 is characterized in that: like the input optical fibre laser instrument is ytterbium-doping optical fiber laser, described output collimating mirror then to the transmissivity of 1.0-1.1 μ m laser more than 99.5%.
8. according to claim 1 or the 6 described power bundling devices that are used for high-capacity optical fiber laser, it is characterized in that: described output collimating mirror is positioned at 10mm place, the laser convergence point outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200097639U CN202421540U (en) | 2012-01-10 | 2012-01-10 | Power beam combiner for high-power optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200097639U CN202421540U (en) | 2012-01-10 | 2012-01-10 | Power beam combiner for high-power optical fiber laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202421540U true CN202421540U (en) | 2012-09-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200097639U Expired - Lifetime CN202421540U (en) | 2012-01-10 | 2012-01-10 | Power beam combiner for high-power optical fiber laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202421540U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522683A (en) * | 2012-01-10 | 2012-06-27 | 武汉锐科光纤激光器技术有限责任公司 | Power beam combiner for high-power optical fiber laser |
| CN105425402A (en) * | 2016-01-05 | 2016-03-23 | 王美航 | Fixed-distance laser beam combining device |
-
2012
- 2012-01-10 CN CN2012200097639U patent/CN202421540U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522683A (en) * | 2012-01-10 | 2012-06-27 | 武汉锐科光纤激光器技术有限责任公司 | Power beam combiner for high-power optical fiber laser |
| CN105425402A (en) * | 2016-01-05 | 2016-03-23 | 王美航 | Fixed-distance laser beam combining device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 430074 East Lake science and technology zone, Wuhan province high tech Avenue, No. 999, the future of science and technology city of the city of Hubei Patentee after: WUHAN RAYCUS FIBER LASER TECHNOLOGIES CO., LTD. Address before: 430223 East Lake New Technology Development Zone, Huazhong University of Science and Technology, Wuhan science and technology park innovation base, building No. 10, building No. Patentee before: Wuhan Raycus Fiber Laser Technologies Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180716 Address after: 430074 999 new high road, East Lake Development Zone, Wuhan, Hubei Patentee after: Wuhan Rui Xin special optical fiber Ltd Address before: 430074 Hubei science and Technology City, East Lake high tech Zone, Wuhan, 999 Patentee before: WUHAN RAYCUS FIBER LASER TECHNOLOGIES CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |