CN201204381Y - Combination device for semiconductor laser - Google Patents
Combination device for semiconductor laser Download PDFInfo
- Publication number
- CN201204381Y CN201204381Y CNU2008200804474U CN200820080447U CN201204381Y CN 201204381 Y CN201204381 Y CN 201204381Y CN U2008200804474 U CNU2008200804474 U CN U2008200804474U CN 200820080447 U CN200820080447 U CN 200820080447U CN 201204381 Y CN201204381 Y CN 201204381Y
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- semiconductor laser
- optical fiber
- fiber bundle
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- laser
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Abstract
The utility model relates to a combination device of a semiconductor laser, belonging to laser technique field. The device comprises a semiconductor laser array with N luminous units, or N semiconductor laser single-tubes (1), a optical fiber bundle (2), and a collimation lens (4), wherein the end of the fiber bundle (2) is an optical fiber bar (3) formed by fused biconical taper, light emitting by N semiconductor laser single tubes (1) are coupled by N optical fibers in the fiber bundle (2), are mixed after output to the optical fiber bar (3), and at last output by collimation lens (4). The laser of the utility model has the advantages that the output end of the optical fiber bundle is a optical fiber bar formed by biconical taper, which sufficiently mixes the transmission light in each optical fiber and outputs in a mode about the same, thereby effectively combining light beam of the semiconductor laser, obtaining a laser output of high beam quality and high power.
Description
Technical field
That the utility model relates to a kind of semiconductor laser and attach together and put, belong to laser technology field.
Background technology
Semiconductor laser since its good stability, electrical efficiency height, wave-length coverage wide, be convenient to install and carry, obtained application very widely in communication and manufacture field.Along with the raising of manufacture craft, the power output of semiconductor laser array has also surpassed 100 watts in recent years, and single semiconductor laser single tube power output under the condition that guarantees basic mode output has surpassed 10W.
Present high power semiconductor lasers system is mainly based on semiconductor laser array (one dimension Bar, two-dimentional Stack), because between each luminescence unit of semiconductor laser array is incoherent, so the light beam of entire semiconductor array output also is the combination of a lot of incoherent lights, beam quality is poor.Therefore semiconductor laser array all will pass through shaping earlier when some need the application of high light beam quality, and all can only change the spatial arrangements of elementary beam at present at the apparatus for shaping of semiconductor laser array, can not make them sufficient and close.Semiconductor laser array for N unit uses traditional shaping methods can only make whole system beam quality M at most
2The factor is reduced to single luminescence unit M
2The N of the factor doubly.
The utility model content
The purpose of this utility model has been to overcome the above-mentioned defective of existing apparatus for shaping, provide a kind of semiconductor laser and attach together and put.This device can make the light that transmits in the every optical fiber obtain fully and close, with pattern output much at one.
To achieve these goals, the utility model has been taked following technical scheme.Include semiconductor laser, fiber bundle and collimating lens, described semiconductor laser is semiconductor laser array or N the semiconductor laser single tube that comprises N luminescence unit.Wherein: the optical fibre rod of the end of fiber bundle for forming through fused biconical taper is input in the optical fibre rod after the N bundle light that laser sends is coupled through the N root optical fiber in the fiber bundle again and mixes, at last through collimating lens output.
The surface of described optical fibre rod scribbles the overlay that one deck refractive index is lower than fibre core, filters the bigger light of the angle of divergence in the optical fibre rod.
The utility model compresses solid matter after the end of the N root optical fiber in the fiber bundle is removed overlay, and the arrangement of cross section as shown in Figure 2.End to fiber bundle draws awl then, and the light of various lasers output can fully be mixed, and improves the brightness of laser, and last emergent light is exported through after the collimated.
Because the output light M of the single luminescence unit in semiconductor laser single tube or the semiconductor laser array
2The factor is near 1, if it is proper to be coupled like this, just can guarantee that the basic mode composition of the light propagated in the optical fiber is higher, if therefore cone angle is not quite then the loss that brings is also not too large when drawing awl, even the surface is coated with the overlay of one deck refractive index greater than air again, does not have too many energy loss yet and fall.
Advantage of the present utility model is that the output of fiber bundle is the optical fibre rod that draws awl to form, the light that transmits in the every optical fiber can be mixed fully, with pattern output much at one, thereby effectively the light beam of noise spectra of semiconductor lasers carries out and closes, and obtains high light beam quality, the output of powerful laser.
Description of drawings
Fig. 1 the utility model semiconductor laser system schematic diagram
Fig. 2 solid matter fiber bundle schematic diagram
00 optical fiber solid matter of Figure 32 schematic diagram
Among the figure: 1, semiconductor laser, 2, fiber bundle, 3, optical fibre rod, 4, collimating lens.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing:
As shown in Figure 1, the laser light source in the present embodiment partly is a plurality of semiconductor laser single tubes 1, and the light that they send mixes through inputing to after the coupling of fiber bundle 2 in the optical fibre rod 3 again, at last through collimating lens 4 outputs.Optical fibre rod 3 is that the end of fiber bundle 2 is formed through fused biconical taper, scribbles the overlay that one deck refractive index is lower than fibre core on the surface of the optical fibre rod 3 that draws the awl back to form and filters the bigger light of the angle of divergence in the optical fibre rod.
What the light source in the present embodiment adopted is the semiconductor laser single tube of 200 single mode output 10W, with the output that is coupled of the optical fiber of core diameter 200 μ m, fiber core refractive index 1.62, numerical aperture 0.22, fiber bundle diameter behind the solid matter is about 3.2mm as shown in Figure 3, by drawing awl to make its output become the optical fibre rod that diameter is 1mm, it is 1.6 ultraviolet glue that the surface is coated with refractive index again, so just can with the light of 200 semiconductor laser single tubes and be combined into power kilowatt magnitude, K
fValue is less than the laser output of 20mmmrad.
Claims (2)
1, a kind of semiconductor laser and attach together and put, include semiconductor laser (1) and collimating lens (4), described semiconductor laser 1 is for comprising semiconductor laser array or N semiconductor laser single tube of N luminescence unit; It is characterized in that: also include fiber bundle (2), the optical fibre rod (3) of the end of fiber bundle (2) for forming through fused biconical taper, be input to again in the optical fibre rod (3) after the light that semiconductor laser (1) sends is coupled through the N root optical fiber in the fiber bundle (2) and mix, pass through collimating lens (4) output at last.
2, a kind of semiconductor laser according to claim 1 and attach together and put, it is characterized in that: described optical fibre rod (3) surface scribbles the overlay that one deck refractive index is lower than fibre core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200804474U CN201204381Y (en) | 2008-05-09 | 2008-05-09 | Combination device for semiconductor laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200804474U CN201204381Y (en) | 2008-05-09 | 2008-05-09 | Combination device for semiconductor laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201204381Y true CN201204381Y (en) | 2009-03-04 |
Family
ID=40426696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200804474U Expired - Fee Related CN201204381Y (en) | 2008-05-09 | 2008-05-09 | Combination device for semiconductor laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201204381Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102662240A (en) * | 2012-05-08 | 2012-09-12 | 西安炬光科技有限公司 | Multiple-light-emitting-unit semiconductor laser module coupling device with indication function |
| CN102789067A (en) * | 2011-05-18 | 2012-11-21 | 苏州生物医学工程技术研究所 | Beam collimating device of high-power semiconductor laser array |
| CN103913410A (en) * | 2014-04-09 | 2014-07-09 | 江西科技师范大学 | Novel multi-laser flow cytometry laser integration system |
| CN105824130A (en) * | 2016-05-19 | 2016-08-03 | 西安域视光电科技有限公司 | Device for eliminating laser speckles and preparation method thereof |
-
2008
- 2008-05-09 CN CNU2008200804474U patent/CN201204381Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102789067A (en) * | 2011-05-18 | 2012-11-21 | 苏州生物医学工程技术研究所 | Beam collimating device of high-power semiconductor laser array |
| CN102662240A (en) * | 2012-05-08 | 2012-09-12 | 西安炬光科技有限公司 | Multiple-light-emitting-unit semiconductor laser module coupling device with indication function |
| CN103913410A (en) * | 2014-04-09 | 2014-07-09 | 江西科技师范大学 | Novel multi-laser flow cytometry laser integration system |
| CN105824130A (en) * | 2016-05-19 | 2016-08-03 | 西安域视光电科技有限公司 | Device for eliminating laser speckles and preparation method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIAXING DAHE LASER EQUIPMENT CO., LTD. Free format text: FORMER OWNER: BEIJING POLYTECHNIC UNIV. Effective date: 20090410 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090410 Address after: Zhejiang County of Jiashan Province Town Success Road No. 128 4 Wei floor, zip code: 314100 Patentee after: Jiaxing Dahe Laser Equipment Co., Ltd. Address before: No. 100 Ping Park, Beijing, Chaoyang District: 100022 Patentee before: Beijing University of Technology |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090304 Termination date: 20140509 |