CN201490563U - 100 W continuous all-fiber laser - Google Patents
100 W continuous all-fiber laser Download PDFInfo
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- CN201490563U CN201490563U CN2009201624789U CN200920162478U CN201490563U CN 201490563 U CN201490563 U CN 201490563U CN 2009201624789 U CN2009201624789 U CN 2009201624789U CN 200920162478 U CN200920162478 U CN 200920162478U CN 201490563 U CN201490563 U CN 201490563U
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Abstract
The utility model relates to a structure of a 100 W continuous all-fiber laser, which comprises a main oscillator and a power amplifier, wherein the main oscillator consists of a diode pumping source with a tail fiber, a side coupler, a signal light reflection fiber grating, a double cladding ytterbium-doped optical fiber and an output coupling fiber grating; a pumping input optical fiber in the side coupler is connected with the diode pumping source with the tail fiber; an output optical fiber in the side coupler is connected with the signal light reflection fiber grating; the other end of the signal light reflection fiber grating is connected with the output coupling fiber grating through the double cladding ytterbium-doped optical fiber; and an output terminal of the output coupling fiber grating is connected with a signal input terminal of the side coupler in the power amplifier. The utility model has an all-fiber structure and the whole system only needs simple air cooling. The utility model has obvious advantages of compactness, high reliability, good light beam quality, high conversion efficiency, good radiating effect and the like, and is easy to produce.
Description
Technical field
The utility model relates to the continuous full-optical-fiber laser of a kind of 100W.
Background technology
High-capacity optical fiber laser is because of it has that efficient height, volume are little, perfect heat-dissipating, output beam quality is good and be easy to realize characteristics such as high power, compare with other solid state lasers and gas laser, have apparent in view advantage, caused people's very big interest.Can be widely used in fields such as mark, shaping, micromachined and laser medicine, be one of the direction in comparison forward position, current optoelectronic information field.
Have only several family units doing the research of this respect both at home and abroad, the more famous abroad University of Southampton photoelectricity research center that mainly contains Britain, German Jena university, France with the seminar headed by the AmmarHideur etc.Domestic Nankai University, Shanghai ray machine institute of the Chinese Academy of Sciences, units such as Tsing-Hua University are also studied this respect.But these researchs are mainly carried out in the laboratory, have adopted more free space element mostly, as optical mirror slip, precision optical machinery adjustment rack etc., are not all optical fibre structures, are not easy to realize commercialization.
Summary of the invention
The purpose of this utility model provides a kind of 100W continuous full-optical-fiber laser in order to overcome problem and the shortcoming that above-mentioned prior art exists, and the utility model is an all optical fibre structure, and whole system only needs simply air-cooled.Have remarkable advantages such as compactness, high reliability, good beam quality, conversion efficiency height, good heat dissipation effect, be easy to realize commercialization.
The technical solution of the utility model is:
The structure of the continuous full-optical-fiber laser of 100W, as shown in Figure 1, constitute by master oscillator 1 and power amplifier 2 two parts, it is characterized in that: wherein master oscillator 1 is by the fine diode pumping source 101 of magnetic tape trailer, side coupler 102, flashlight reflection fiber grating 103, double clad Yb dosed optical fiber 104, output coupled fiber grating 105 is formed, the pumping input optical fibre links to each other with the fine diode pumping source 101 of magnetic tape trailer in the side coupler 102, output optical fibre links to each other with flashlight reflection fiber grating 103 in the side coupler 102, and flashlight reflection fiber grating 103 other ends link to each other with output coupled fiber grating 105 through double clad Yb dosed optical fiber 104; The output of output coupled fiber grating 105 links to each other with the signal input part of the side coupler 202 of power amplifier 2.Described power amplifier 2 is made of the fine diode pumping source 201 of magnetic tape trailer, side coupler 202, double clad Yb dosed optical fiber 203, output coupled fiber 204, the pumping input optical fibre links to each other with the fine diode pumping source 201 of magnetic tape trailer in the side coupler 202, and output optical fibre links to each other with output coupled fiber 204 through double clad Yb dosed optical fiber 203 in the side coupler 202.In master oscillator 1, the seed laser about output average power 10W, injecting power amplifier 2 amplifies subsequently, can obtain the laser of average power 100W, subsequently by 204 outputs of output coupled fiber.
Fine diode pumping source 101 output wavelengths of the magnetic tape trailer of described master oscillator 1 are 915nm, and power output is 20W, and tail optical fiber is a multimode fiber.The pumping source of ytterbium-doping optical fiber laser generally adopts 915nm or 975nm long wavelength semiconductor laser, because Yb dosed optical fiber has wideer absorption line near 915nm, so the utility model selects for use the semiconductor laser of 915nm magnetic tape trailer fibre as pumping source.
The side coupler 102 of described master oscillator 1 has bigger reverse isolation degree, guarantees that the fine semiconductor pumping sources 101 of magnetic tape trailer can not cause damage because feedback is excessive; Have less coupling loss simultaneously, be generally less than 0.2dB, guarantee that pumping luminous energy effectively injects Yb dosed optical fiber by it.Its structure is referring to first patent (patent No.: ZL 03128067.6), and wherein an input optical fibre is a multimode fiber, is welded together with the fine diode pumping source 101 of magnetic tape trailer.
103 pairs of 915nm pump lights of described flashlight reflection fiber grating are high saturating, and transmissivity is greater than 99%; High anti-to flashlight 1064nm, general reflection efficiency is more than 98%.
The double clad Yb dosed optical fiber 104 of described master oscillator 1 is doubly clad optical fiber, and its core material is a working-laser material, for mixing the ytterbium quartz glass; The cross section of inner cladding is rectangle, D shape, hexagon or non-circular other shape.Be monomode fiber, guaranteed the beam quality that the seed light of main oscillations 1 output has a nearly diffraction limit.
105 pairs of 915nm pump lights of the output coupled fiber grating of described master oscillator 1 are high saturating, and transmissivity is greater than 99%; To flashlight 1064nm partial reflection, reflectivity is generally 5%-20%.The flashlight reflection fiber grating 103 of itself and master oscillator 1 constitutes the resonant cavity of lasers, and the reflection wavelength of the flashlight reflection fiber grating 103 of reflection wavelength and master oscillator 1 is strict to be mated.
Fine diode pumping source 201 output wavelengths of the magnetic tape trailer of described power amplifier 2 are 915nm, and power output is 200W, and tail optical fiber is a multimode fiber.The pumping source of ytterbium-doping optical fiber laser generally adopts 915nm or 975nm long wavelength semiconductor laser, because Yb dosed optical fiber has wideer absorption line near 915nm, so the utility model selects for use the semiconductor laser of 915nm magnetic tape trailer fibre as pumping source.
The side coupler 202 of described power amplifier 2 has bigger reverse isolation degree, less insertion loss and coupling loss, and is general all less than 0.2dB, guarantees that pumping luminous energy effectively injects Yb dosed optical fiber by it.Its structure is referring to first patent (patent No.: ZL 03128067.6).Input optical fibre wherein one be multimode fiber, be welded together with the output optical fibre of the fine diode pumping source 201 of magnetic tape trailer; Another root input optical fibre is a doubly clad optical fiber, with output coupled fiber grating 105 weldings mutually in the master oscillator 1.
The double clad Yb dosed optical fiber 203 of described power amplifier 2 is the long-pending doubly clad optical fiber of big die face.Its core material is a working-laser material, for mixing the ytterbium quartz glass; The cross section of inner cladding is rectangle, D shape, hexagon or non-circular other shape.With master oscillator 1 double clad Yb dosed optical fiber 104 compare, it has bigger core size.According to the different parameters optical fiber that is adopted, select for use appropriate diameter to coil, guarantee to have beam quality preferably from the laser of amplifier output.
The output coupled fiber 204 of described power amplifier 2 is passive optical fiber, and the double clad Yb dosed optical fiber 203 of its core diameter and numerical aperture and power amplifier 2 is complementary, and guarantees less splice loss, splice attenuation between the two.Output is 8 degree inclination angle polishings and is coated with the flashlight anti-reflection film, with the self-oscillation in the double clad Yb dosed optical fiber 203 that suppresses power amplifier 2.
Compare with first technology, the utility model is an all optical fibre structure, and whole system only needs simply air-cooled.Have remarkable advantages such as compactness, high reliability, good beam quality, conversion efficiency height, good heat dissipation effect, be easy to realize commercialization.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in detail:
As shown in Figure 1, the utility model is made of master oscillator 1 and power amplifier 2 two parts, wherein master oscillator 1 is by the fine diode pumping source 101 of magnetic tape trailer, side coupler 102, flashlight reflection fiber grating 103, double clad Yb dosed optical fiber 104, output coupled fiber grating 105 is formed, the pumping input optical fibre links to each other with the fine diode pumping source 101 of magnetic tape trailer in the side coupler 102, output optical fibre links to each other with flashlight reflection fiber grating 103 in the side coupler 102, and flashlight reflection fiber grating 103 other ends link to each other with output coupled fiber grating 105 through double clad Yb dosed optical fiber 104; The output of output coupled fiber grating 105 links to each other with the signal input part of the side coupler 202 of power amplifier 2.Described power amplifier 2 is made of the fine diode pumping source 201 of magnetic tape trailer, side coupler 202, double clad Yb dosed optical fiber 203, output coupled fiber 204, the pumping input optical fibre links to each other with the fine diode pumping source 201 of magnetic tape trailer in the side coupler 202, and output optical fibre links to each other with output coupled fiber 204 through double clad Yb dosed optical fiber 203 in the side coupler 202.In master oscillator 1, the seed laser about output average power 10W, injecting power amplifier 2 amplifies subsequently, can obtain the laser of average power 100W, subsequently by 204 outputs of output coupled fiber.
Fine diode pumping source 101 output wavelengths of the magnetic tape trailer of described master oscillator 1 are 915nm, and power output is 20W, and tail optical fiber is a multimode fiber.The pumping source of ytterbium-doping optical fiber laser generally adopts 915nm or 975nm long wavelength semiconductor laser, because Yb dosed optical fiber has wideer absorption line near 915nm, so the utility model selects for use the semiconductor laser of 915nm magnetic tape trailer fibre as pumping source.
The side coupler 102 of described master oscillator 1 has bigger reverse isolation degree, guarantees that the fine semiconductor pumping sources 101 of magnetic tape trailer can not cause damage because feedback is excessive; Have less coupling loss simultaneously, be generally less than 0.2dB, guarantee that pumping luminous energy effectively injects Yb dosed optical fiber by it.Its structure is referring to first patent (patent No.: ZL 03128067.6), and wherein an input optical fibre is a multimode fiber, is welded together with the fine diode pumping source 101 of magnetic tape trailer.
103 pairs of 915nm pump lights of described flashlight reflection fiber grating are high saturating, and transmissivity is greater than 99%; High anti-to flashlight 1064nm, general reflection efficiency is more than 98%.
The double clad Yb dosed optical fiber 104 of described master oscillator 1 is doubly clad optical fiber, and its core material is a working-laser material, for mixing the ytterbium quartz glass; The cross section of inner cladding is rectangle, D shape, hexagon or non-circular other shape.Be monomode fiber, guaranteed the beam quality that the seed light of main oscillations 1 output has a nearly diffraction limit.
105 pairs of 915nm pump lights of the output coupled fiber grating of described master oscillator 1 are high saturating, and transmissivity is greater than 99%; To flashlight 1064nm partial reflection, reflectivity is generally 5%-20%.The flashlight reflection fiber grating 103 of itself and master oscillator 1 constitutes the resonant cavity of lasers, and the reflection wavelength of the flashlight reflection fiber grating 103 of reflection wavelength and master oscillator 1 is strict to be mated.
Fine diode pumping source 201 output wavelengths of the magnetic tape trailer of described power amplifier 2 are 915nm, and power output is 200W, and tail optical fiber is a multimode fiber.The pumping source of ytterbium-doping optical fiber laser generally adopts 915nm or 975nm long wavelength semiconductor laser, because Yb dosed optical fiber has wideer absorption line near 915nm, so the utility model selects for use the semiconductor laser of 915nm magnetic tape trailer fibre as pumping source.
The side coupler 202 of described power amplifier 2 has bigger reverse isolation degree, less insertion loss and coupling loss, and is general all less than 0.2dB, guarantees that pumping luminous energy effectively injects Yb dosed optical fiber by it.Its structure is referring to first patent (patent No.: ZL 03128067.6).Input optical fibre wherein one be multimode fiber, be welded together with the output optical fibre of the fine diode pumping source 201 of magnetic tape trailer; Another root input optical fibre is a doubly clad optical fiber, with output coupled fiber grating 105 weldings mutually in the master oscillator 1.
The double clad Yb dosed optical fiber 203 of described power amplifier 2 is the long-pending doubly clad optical fiber of big die face.Its core material is a working-laser material, for mixing the ytterbium quartz glass; The cross section of inner cladding is rectangle, D shape, hexagon or non-circular other shape.Compare with the double clad Yb dosed optical fiber 104 of master oscillator 1, it has bigger core size.According to the different parameters optical fiber that is adopted, select for use appropriate diameter to coil, guarantee to have beam quality preferably from the laser of amplifier output.
The output coupled fiber 204 of described power amplifier 2 is passive optical fiber, and the double clad Yb dosed optical fiber 203 of its core diameter and numerical aperture and power amplifier 2 is complementary, and guarantees less splice loss, splice attenuation between the two.Output is 8 degree inclination angle polishings and is coated with the flashlight anti-reflection film, with the self-oscillation in the double clad Yb dosed optical fiber 203 that suppresses power amplifier 2.
Structure as shown in Figure 1.With the tail optical fiber of the fine semiconductor pumping sources 101 of the magnetic tape trailer of master oscillator 1 respectively with the side coupler 10 of master oscillator 1) multimode fiber of input is welded together; Side coupler 102 outputs and flashlight reflection fiber grating 103 welding mutually; Be welded together with double clad Yb dosed optical fiber 104 then; Be welded together with heel output coupled fiber grating 105.Then, the doubly clad optical fiber welding mutually of output coupled fiber grating 105 and side coupler 202 inputs of power amplifier 2, the output of the magnetic tape trailer fibre semiconductor pumping sources 201 of power amplifier 2 are welded together with the multimode fiber of side coupler 202 inputs of power amplifier 2 respectively; The output of the side coupler 202 of power amplifier 2 is with the 203 phase weldings of double clad Yb dosed optical fiber, and coupled fiber 204 is exported in welding more at last.This has just finished the continuous full-optical-fiber laser of 100W of MOPA structure.
We adopt this structure, and the power output that obtains master oscillator is 10.5W, and after amplifying through amplifier, the output average power can reach 100W.
Claims (11)
1.100W continuous full-optical-fiber laser, constitute by master oscillator (1) and power amplifier (2) two parts, it is characterized in that: wherein master oscillator (1) is by the fine diode pumping source (101) of magnetic tape trailer, side coupler (102), flashlight reflection fiber grating (103), double clad Yb dosed optical fiber (104), output coupled fiber grating (105) is formed, the pumping input optical fibre links to each other with the fine diode pumping source of magnetic tape trailer (101) in the side coupler (102), output optical fibre links to each other with flashlight reflection fiber grating (103) in the side coupler (102), and flashlight reflection fiber grating (103) other end links to each other with output coupled fiber grating (105) through double clad Yb dosed optical fiber (104); The output of output coupled fiber grating (105) links to each other with the signal input part of the side coupler (202) of power amplifier (2).
2. the structure of the continuous full-optical-fiber laser of 100W according to claim 1, it is characterized in that: described power amplifier (2) is made of the fine diode pumping source (201) of magnetic tape trailer, side coupler (202), double clad Yb dosed optical fiber (203), output coupled fiber (204), the pumping input optical fibre links to each other with the fine diode pumping source of magnetic tape trailer (201) in the side coupler (202), and output optical fibre links to each other with output coupled fiber (204) through double clad Yb dosed optical fiber (203) in the side coupler (102).
3. the structure of the continuous full-optical-fiber laser of 100W according to claim 1 is characterized in that: fine diode pumping source (101) output wavelength of the magnetic tape trailer of described master oscillator (1) is 915nm, and power output is 20W, and tail optical fiber is a multimode fiber.
4. the structure of the continuous full-optical-fiber laser of 100W according to claim 1 is characterized in that: one is multimode fiber in the input optical fibre of the side coupler (102) of described master oscillator (1), with fine diode pumping source (101) welding of magnetic tape trailer.
5. the structure of the continuous full-optical-fiber laser of 100W according to claim 1, it is characterized in that: the flashlight reflection fiber grating (103) of described master oscillator (1) is high saturating to the 915nm pump light, transmitance is generally more than 99%, and high anti-to flashlight, reflectivity generally is higher than 98%.
6. according to the structure of the continuous full-optical-fiber laser of claims 1 described 100W, it is characterized in that: the double clad Yb dosed optical fiber (104) of described master oscillator (1) is single-mode double-clad optical fiber.
7. the structure of the continuous full-optical-fiber laser of 100W according to claim 1, it is characterized in that: the output coupled fiber grating (105) of described master oscillator (1) is high saturating to the 915nm pump light, transmitance is more than 99%, to the flashlight partial reflection, reflectivity is 5%-20%, and constitutes the resonant cavity of laser with flashlight reflection fiber grating (103).
8. the structure of the continuous full-optical-fiber laser of 100W according to claim 2 is characterized in that: fine diode pumping source (201) output wavelength of the magnetic tape trailer of described power amplifier (2) is 915nm, and power output is 200W, and tail optical fiber is a multimode fiber.
9. the structure of the continuous full-optical-fiber laser of 100W according to claim 2, it is characterized in that: one is doubly clad optical fiber in the input optical fibre of the side coupler (202) of described power amplifier (2), be welded together with the output coupled fiber grating (105) in the master oscillator (1), another root is a multimode fiber, is welded together with the pumping source (201) of magnetic tape trailer fibre.
10. the structure of the continuous full-optical-fiber laser of 100W according to claim 2 is characterized in that: the double clad Yb dosed optical fiber (203) of described power amplifier (2) is the long-pending doubly clad optical fiber of big die face.
11. the structure of the continuous full-optical-fiber laser of 100W according to claim 2 is characterized in that: the output coupled fiber (204) of described power amplifier (2), output are 8 degree inclination angle polishings and are coated with the flashlight anti-reflection film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201624789U CN201490563U (en) | 2008-11-17 | 2009-07-29 | 100 W continuous all-fiber laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200820192515.6 | 2008-11-17 | ||
| CN2009201624789U CN201490563U (en) | 2008-11-17 | 2009-07-29 | 100 W continuous all-fiber laser |
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| CN201490563U true CN201490563U (en) | 2010-05-26 |
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| CN2009201624789U Expired - Lifetime CN201490563U (en) | 2008-11-17 | 2009-07-29 | 100 W continuous all-fiber laser |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252834A (en) * | 2011-06-28 | 2011-11-23 | 武汉锐科光纤激光器技术有限责任公司 | Photon darkening test system for gain fiber |
| CN103549874A (en) * | 2013-09-17 | 2014-02-05 | 邵道德 | Intelligent food steam-boiling machine |
| CN111129933A (en) * | 2018-10-31 | 2020-05-08 | 大族激光科技产业集团股份有限公司 | All-fiber air-cooled thulium laser |
-
2009
- 2009-07-29 CN CN2009201624789U patent/CN201490563U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252834A (en) * | 2011-06-28 | 2011-11-23 | 武汉锐科光纤激光器技术有限责任公司 | Photon darkening test system for gain fiber |
| CN103549874A (en) * | 2013-09-17 | 2014-02-05 | 邵道德 | Intelligent food steam-boiling machine |
| CN103549874B (en) * | 2013-09-17 | 2016-03-30 | 邵道德 | Intelligence steam cooked food machine |
| CN111129933A (en) * | 2018-10-31 | 2020-05-08 | 大族激光科技产业集团股份有限公司 | All-fiber air-cooled thulium laser |
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Legal Events
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| 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, Hubei Wuhan science and Technology Park, Huazhong University of Science and Technology hi tech laser industry park Patentee before: Wuhan Raycus Fiber Laser Technologies Co., Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100526 |