CN205178260U - Semiconductor laser device of bi -polar fiber optic coupling output - Google Patents
Semiconductor laser device of bi -polar fiber optic coupling output Download PDFInfo
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- CN205178260U CN205178260U CN201520912805.3U CN201520912805U CN205178260U CN 205178260 U CN205178260 U CN 205178260U CN 201520912805 U CN201520912805 U CN 201520912805U CN 205178260 U CN205178260 U CN 205178260U
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- laser
- coupling output
- double ended
- semiconductor laser
- fiber coupling
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Abstract
The utility model discloses a semiconductor laser device of bi -polar fiber optic coupling output, including the semiconductor laser of bi -polar fiber optic coupling output, the semiconductor laser of bi -polar fiber optic coupling output has an encapsulation casing that the step is heat sink, and the heat sink keep (shenglvehao)at a certain distance away of going up of step of encapsulation casing has welded a plurality of single -tube laser chip side by side, coaxial fast axis collimating lens, slow axis collimating lens and the reflector of being provided with of one -to -one with it in the light -emitting orientation of a plurality of single -tube laser chip, the utility model provides a semiconductor laser of bi -polar fiber optic coupling output, the single -ended semiconductor laser who exports that can replace two traditional power to equal with it can reduce the volume of PA pumping source about 20%, the cost of reduction pumping source about 10%, more can adapt to the demand that miniwatt pulse continuous laser develops towards miniaturized, low -cost direction.
Description
Technical field
The utility model relates to a kind of semicondcutor laser unit of double ended fiber coupling output, belongs to laser technology field.
Background technology
Fiber laser technology fast development in recent years, semiconductor laser has as pumping source that conversion efficiency is high, the life-span is long, volume is little, lightweight, high reliability, receives more attention.
Small-power pulse/jointed fiber laser progressively changes towards low cost, miniaturization, high-power direction as the part that Laser Marketplace is important.In general, small-power pulse/jointed fiber laser is made up of principal earthquake-amplification (MOPA) structure.Be limited to amplifier (PA) coupler single armed and bear power, usually adopt (2+1) * 1 coupler two identical single tubes or many single-tube semiconductor lasers exported optical coupling enter amplification system.
The operation principle of this system is: the laser of seed source injection enters Yb-doped double-cladding fiber through coupler and amplifies, and is finally exported by delivery.Two Single-end output semiconductor lasers are as the pumping source of amplifier, and two block power supply circuit boards are respectively two pumping tubes and provide electric energy.This mode is comparatively directly simple, but there are two pumping tubes takies the shortcomings such as larger space, packaging cost and circuit cost are higher, production practical operation is complicated.
Utility model content
The technical problems to be solved in the utility model is the shortcoming for above-mentioned semiconductor laser module, provides that a kind of volume is little, cost is low, the semicondcutor laser unit of the double ended fiber coupling output of dependable performance.
In order to solve the problem, the utility model by the following technical solutions:
A kind of semicondcutor laser unit of double ended fiber coupling output, comprise the semiconductor laser of double ended fiber coupling output, the semiconductor laser of double ended fiber coupling output has the heat sink encapsulating housing of a step, keep at a certain distance away on the step of encapsulating housing is heat sink and be welded with several single-tube laser chips side by side, on the light direction of several single-tube laser chips, one_to_one corresponding is coaxially arranged with fast axis collimation lens, slow axis collimating lens and reflective mirror with it.
Below the further optimization of the utility model to such scheme:
Position encapsulating housing being in the injection direction of speculum is provided with a convergent lens and Laser output unit, installs a light-splitting device be oppositely arranged with speculum between convergent lens and adjacent speculum.
Further optimization: this light-splitting device is polarization irrelevant spectroscope.
Further optimization: position correspondence encapsulating housing being in polarization irrelevant spectroscopical light injection direction is provided with a convergent lens and Laser output unit.
This Laser output unit is independently two optical fiber.The output optical fibre of described Laser output unit is all carved with the grating high instead to Optical Maser System wavelength, semiconductor laser wavelength is high.
The semiconductor laser of the double ended fiber coupling output that the utility model proposes, the semiconductor laser of the Single-end output that two traditional power are equal with it can be replaced, the volume of PA pumping source about 20% can be reduced, reduce the cost of pumping source about 10%, more can adapt to small-power pulse/continuous wave laser towards demand that is miniaturized, low cost future development.
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Accompanying drawing explanation
Accompanying drawing 1 is the structural representation of the utility model embodiment semiconductor laser.
Accompanying drawing 2 is the utility model embodiment semiconductor laser application schematic diagrames in Optical Maser System.
In figure: 101-seed source; 103-power supply circuit board; 104-laser is through coupler; 105-Yb-doped double-cladding fiber; 106-delivery; The semiconductor laser of 202-double ended fiber coupling output; 301-encapsulating housing; 302-single-tube laser chip; 303-fast axis collimation lens; 304-slow axis collimating lens; 305-reflective mirror; 306-convergent lens; 307-fixed mount; 308-is two optical fiber independently; 309-polarization irrelevant spectroscope.
Embodiment
Embodiment, as shown in Figure 1, the semiconductor laser 202 of double ended fiber coupling output has the heat sink encapsulating housing 301 of a step, keep at a certain distance away on the step of encapsulating housing 301 is heat sink and be welded with several single-tube laser chips 302 side by side, on the light direction of several single-tube laser chips 302, one_to_one corresponding is coaxially arranged with fast axis collimation lens 303, slow axis collimating lens 304 and reflective mirror 305.
The light direction of several single-tube laser chips 302 described is consistent.Shoot laser successively through fast axis collimation lens 303 and slow axis collimating lens 304, through the angle of divergence of laser beam obtains reduction in various degree soon, after the shaping of slow axis collimating lens.
Described speculum 305 is several rows of row along the light direction perpendicular to single-tube laser chip 302, and each reflective mirror 305 deflection angle is consistent and become 45 jiaos with the light direction of single-tube laser chip 302.By accommodation reflex mirror 305, one group of collimated light beam that chip of laser 302 can be sent is stacked into the square hot spot of contour approximation.
The emitting light path of speculum 305 is installed a light-splitting device.This light-splitting device is polarization irrelevant spectroscope 309.Two bundle laser of light beam forming energy equalization after the polarization irrelevant spectroscope 309 of 50:50.
On emitting light path encapsulating housing 301 being in polarization irrelevant spectroscope 309, correspondence is provided with a convergent lens 306 and Laser output unit respectively, and this Laser output unit is independently two optical fiber 308.Two-beam convergent lens 306 of respectively hanging oneself closes in independently two optical fiber 308, and independently two optical fiber 308 are fixed on fixed mount 307 by with glue.
The output optical fibre of described Laser output unit is all carved with the grating high instead to Optical Maser System wavelength, semiconductor laser wavelength is high.
It can thus be appreciated that the semiconductor laser of the double ended fiber coupling output that the utility model proposes, can replace the semiconductor laser of the Single-end output that two traditional power are equal with it.Embody rule as shown in Figure 2.The semiconductor laser 202 of seed source 101 and double ended fiber coupling output, the output of seed source 101 is connected with laser in turn through coupler 104, Yb-doped double-cladding fiber 105, delivery 106 according to the outbound course of laser; Laser is connected with the semiconductor laser 202 of double ended fiber coupling output as pumping source on coupler 104.The semiconductor laser 202 of double ended fiber coupling output is connected with a block power supply circuit board 203, provides electric energy.Adopt the semiconductor laser 202 of double ended fiber coupling output to instead of two Single-end output semiconductor lasers, and only can satisfy the demands with a block power supply circuit board 203.Effectively reduce the volume of PA pumping source like this, improve stock utilization, reduce the cost of raw material and cost of labor, more can adapt to small-power pulse/continuous wave laser towards demand that is miniaturized, low cost future development.
In description of the present utility model, it is to be appreciated that term " the 1st ", " the 2nd " etc. are only for describing object, and instruction or hint relative importance can not be interpreted as.In addition, in description of the present utility model, except as otherwise noted, the implication of " several " is two or more, and illustrated quantity is only used as the object of example.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, to those skilled in the art, the utility model can have various change and change.All do within spirit of the present utility model and principle any amendment, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (7)
1. the semicondcutor laser unit of a double ended fiber coupling output, comprise the semiconductor laser (202) of double ended fiber coupling output, the semiconductor laser (202) of double ended fiber coupling output has the heat sink encapsulating housing (301) of a step, keep at a certain distance away on the step of encapsulating housing (301) is heat sink and be welded with several single-tube laser chips (302) side by side, on the light direction of several single-tube laser chips (302), one_to_one corresponding is coaxially arranged with fast axis collimation lens (303), slow axis collimating lens (304) and reflective mirror (305); It is characterized in that: speculum (305) is along be several rows of row perpendicular to the light direction of single-tube laser chip (302), and each reflective mirror (305) deflection angle unanimously and become 45 ± 5 ° of angles with the light direction of single-tube laser chip (302).
2. the semicondcutor laser unit of a kind of double ended fiber coupling output according to claim 1, is characterized in that: on the emitting light path of speculum (305), install a light-splitting device.
3. the semicondcutor laser unit of a kind of double ended fiber coupling output according to claim 2, is characterized in that: this light-splitting device is polarization irrelevant spectroscope (309).
4. the semicondcutor laser unit of a kind of double ended fiber coupling output according to claim 1 and 2, is characterized in that: on two emitting light paths encapsulating housing (301) being in polarization irrelevant spectroscope (309), all correspondence is provided with a convergent lens (306) and Laser output unit.
5. the semicondcutor laser unit of a kind of double ended fiber coupling output according to claim 3, is characterized in that: this Laser output unit is independently two optical fiber (308).
6. the semicondcutor laser unit of a kind of double ended fiber coupling output according to claim 4, is characterized in that: this convergent lens (306) surface is provided with the high saturating anti-reflection film of noise spectra of semiconductor lasers wavelength.
7. the semicondcutor laser unit of a kind of double ended fiber coupling output according to claim 4, is characterized in that: the output optical fibre of described Laser output unit is all carved with the grating high instead to laser device wavelength, semiconductor laser wavelength is high.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912805.3U CN205178260U (en) | 2015-11-17 | 2015-11-17 | Semiconductor laser device of bi -polar fiber optic coupling output |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520912805.3U CN205178260U (en) | 2015-11-17 | 2015-11-17 | Semiconductor laser device of bi -polar fiber optic coupling output |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205178260U true CN205178260U (en) | 2016-04-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520912805.3U Expired - Fee Related CN205178260U (en) | 2015-11-17 | 2015-11-17 | Semiconductor laser device of bi -polar fiber optic coupling output |
Country Status (1)
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891977A (en) * | 2016-06-16 | 2016-08-24 | 北京为世联合科技有限公司 | Compact laser |
| CN107872004A (en) * | 2017-11-27 | 2018-04-03 | 温州大学 | A kind of double light beam laser output device |
| CN112008356A (en) * | 2020-08-27 | 2020-12-01 | 无锡奥普特自动化技术有限公司 | Automatic assembling method, device and system for reflector in semiconductor pump source shell |
-
2015
- 2015-11-17 CN CN201520912805.3U patent/CN205178260U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105891977A (en) * | 2016-06-16 | 2016-08-24 | 北京为世联合科技有限公司 | Compact laser |
| CN107872004A (en) * | 2017-11-27 | 2018-04-03 | 温州大学 | A kind of double light beam laser output device |
| CN112008356A (en) * | 2020-08-27 | 2020-12-01 | 无锡奥普特自动化技术有限公司 | Automatic assembling method, device and system for reflector in semiconductor pump source shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Tang Shanzhong Inventor before: Wang Benping |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171225 Address after: 261206 Chongwen street, Fangzi District, Weifang, Shandong Province, north of Chongwen street and south of Planning Road (Weifang Fei Yue Industry and Trade Co., Ltd.) Patentee after: Shandong Xin Ming Environmental Protection Technology Co., Ltd. Address before: Health East high tech Zone 261061 in Shandong province Weifang City Branch No. 6888 Xinyuan room 505-506 Patentee before: SHANDONG SAINT LASER TECHNOLOGY CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160420 Termination date: 20181117 |