CN212968481U - Laser with high repetition frequency and multi-wavelength output - Google Patents
Laser with high repetition frequency and multi-wavelength output Download PDFInfo
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- CN212968481U CN212968481U CN202021171625.1U CN202021171625U CN212968481U CN 212968481 U CN212968481 U CN 212968481U CN 202021171625 U CN202021171625 U CN 202021171625U CN 212968481 U CN212968481 U CN 212968481U
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Abstract
A laser with high repetition frequency and multi-wavelength output is characterized by comprising a pumping source (1), an optical coupling system (2), an end-pump rear cavity mirror (3), a laser gain medium (4), an acousto-optic Q-switch (5), a rotatable reflector (6), a first output mirror (7), a first frequency doubling crystal (8), a second output mirror (9), a third output mirror (10), a second frequency doubling crystal (11) and a third frequency doubling crystal (12). The utility model provides a laser with high repetition frequency and multi-wavelength output, which can output infrared laser with 1064nm wavelength, or green laser with 532nm wavelength, or ultraviolet laser with 355nm wavelength; the output wavelength span is large, from near infrared to ultraviolet; the laser output with the repetition frequency up to 250kHz can be realized, the problem of current single wavelength output is solved, and the requirements of various application fields of the laser are greatly met.
Description
Technical Field
The utility model belongs to the technical field of the solid laser, in particular to laser instrument of high repetition frequency multi-wavelength output.
Background
In recent years, with the development of laser technology, solid-state lasers have been widely used in people's production and life by virtue of their advantages of compact structure, good beam quality, high conversion efficiency, stable power, etc. The solid laser technology is combined with the frequency doubling technology, so that the conversion of a plurality of wavelengths can be realized, the application field of the solid laser is further expanded, and a good effect is achieved.
Currently, in many laser applications, the most common single wavelength output laser on the market has not been able to meet its application requirements.
SUMMERY OF THE UTILITY MODEL
In order to satisfy the urgent need in the laser application field, overcome the problem that prior art exists, the utility model relates to a laser instrument of high repetition frequency multi-wavelength output can be in order to realize the high repetition frequency laser instrument of three different wavelength 1064nm (infrared laser), 532nm (green laser), 355nm (ultraviolet laser).
The utility model discloses technical scheme as follows:
a laser with high repetition frequency and multi-wavelength output comprises a pumping source 1, an optical coupling system 2, an end-pump rear cavity mirror 3, a laser gain medium 4, an acousto-optic Q-switch 5, a rotatable reflector 6, a first output mirror 7, a first frequency doubling crystal 8, a second output mirror 9, a third output mirror 10, a second frequency doubling crystal 11 and a third frequency doubling crystal 12, wherein pumping light emitted by the pumping source 1 enters the laser gain medium 4 through the optical coupling system 2; the end-pump rear cavity mirror 3, the rotatable reflector 6, the first output mirror 7, the second output mirror 9 and the third output mirror 10 form a laser resonant cavity; the acousto-optic Q-switch 5 and the first frequency doubling crystal 8 are arranged in the laser resonant cavity; the second output mirror 9 and the third frequency doubling crystal 12 are outside the laser resonant cavity.
The pumping source 1 is a light-emitting diode with the central wavelength of 808 nm; one surface of the end-pump rear cavity mirror 3 is plated with a 808nm antireflection film, and the other surface is plated with a 808nm antireflection film and a 1064nm high-reflection film.
The laser gain medium 4 is neodymium-doped yttrium vanadate crystal, and anti-reflection films with the thicknesses of 1064nm and 808nm are plated on two surfaces of the laser gain medium.
The acousto-optic Q-switch 5 is fused quartz crystal; the rotatable reflector 6 is plated with a 1064nm high-reflection film and can rotate at an angle.
The first output mirror 7 has a transmittance of 40% in a 1064nm wavelength band.
The first frequency doubling crystal 8 and the second frequency doubling crystal 11 are double-frequency lithium triborate crystals, and anti-reflection films with the thicknesses of 1064nm and 532nm are plated on both sides of the first frequency doubling crystal and the second frequency doubling crystal.
The second output mirror 9 is a green light 532nm output mirror, one surface of which is plated with a 1064nm high-reflection film and a 532nm antireflection film, and the other surface of which is plated with a 532nm high-transmission film.
The third frequency doubling crystal is a frequency doubling lithium triborate crystal, and anti-reflection films with the thicknesses of 1064nm and 532nm are plated on both surfaces of the third frequency doubling crystal.
The third output mirror 10 is an infrared output mirror, the transmittance is 60%, and the output infrared laser passes through the second frequency doubling crystal 11 and the third frequency doubling crystal 12 to form ultraviolet 355nm laser output.
The effects and advantages of the utility model
The utility model provides a laser with high repetition frequency and multi-wavelength output, which can output infrared laser with 1064nm wavelength, or green laser with 532nm wavelength, or ultraviolet laser with 355nm wavelength; the output wavelength span is large, from near infrared to ultraviolet; the laser output with the repetition frequency up to 250kHz can be realized, the problem of current single wavelength output is solved, and the requirements of various application fields of the laser are greatly met.
Drawings
Fig. 1 is a schematic structural diagram of a high repetition frequency multi-wavelength output laser according to the present invention;
Detailed Description
The following describes the present invention in further detail with reference to the attached drawings.
A high repetition frequency multiple wavelength output laser as shown in figure 1,
a laser with high repetition frequency and multi-wavelength output comprises a pumping source 1, an optical coupling system 2, an end-pump rear cavity mirror 3, a laser gain medium 4, an acousto-optic Q-switch 5, a rotatable reflector 6, a first output mirror 7, a first frequency doubling crystal 8, a second output mirror 9, a third output mirror 10, a second frequency doubling crystal 11 and a third frequency doubling crystal 12, wherein pumping light emitted by the pumping source 1 enters the laser gain medium 4 through the optical coupling system 2; the end-pump rear cavity mirror 3, the rotatable reflector 6, the first output mirror 7, the second output mirror 9 and the third output mirror 10 form a laser resonant cavity; the acousto-optic Q-switch 5 and the first frequency doubling crystal 8 are arranged in the laser resonant cavity; the second output mirror 9 and the third frequency doubling crystal 12 are outside the laser resonant cavity.
The pumping source 1 is a light-emitting diode with the central wavelength of 808 nm; one surface of the end-pump rear cavity mirror 3 is plated with a 808nm antireflection film, and the other surface is plated with a 808nm antireflection film and a 1064nm high-reflection film.
The laser gain medium 4 is neodymium-doped yttrium vanadate crystal, and anti-reflection films with the thicknesses of 1064nm and 808nm are plated on two surfaces of the laser gain medium.
The acousto-optic Q-switch 5 is fused quartz crystal; the rotatable reflector 6 is plated with a 1064nm high-reflection film and can rotate at an angle.
The first output mirror 7 has a transmittance of 40% in a 1064nm wavelength band.
The first frequency doubling crystal 8 and the second frequency doubling crystal 11 are double-frequency lithium triborate crystals, and anti-reflection films with the thicknesses of 1064nm and 532nm are plated on both sides of the first frequency doubling crystal and the second frequency doubling crystal.
The second output mirror 9 is a green light 532nm output mirror, one surface of which is plated with a 1064nm high-reflection film and a 532nm antireflection film, and the other surface of which is plated with a 532nm high-transmission film.
The third frequency doubling crystal is a frequency doubling lithium triborate crystal, and anti-reflection films with the thicknesses of 1064nm and 532nm are plated on both surfaces of the third frequency doubling crystal.
The third output mirror 10 is an infrared output mirror, the transmittance is 60%, and the output infrared laser passes through the second frequency doubling crystal 11 and the third frequency doubling crystal 12 to form ultraviolet 355nm laser output.
The pump source 1 can be an Ennai laser nlight-pearl-808nm-60W model product.
The laser gain medium 4 can be made of Konton optical CASTION-AR1064/8O8 nm-Nd: YVO4 model.
The acousto-optic Q-switch 5 can be made of a product of Fowler science and technology CASECH-1 QS080-1.5CAOG-HR 4.
The first frequency doubling crystal 8 can be made of a Konton photoelectric CASTION-AR1064/532nm-LBO-3 × 3 × 12 type product.
The second frequency doubling crystal 11 can be made of a Konto optical CASTION-AR1064/532 nm-LBO-3X 8 type product.
The third frequency doubling crystal 12 can be made of a product of a type of Tong optical CASTION-AR1064/532 nm-3 × 3 × 20.
The utility model discloses an angle of rotatory speculum of control forms three laser resonator to realize the laser output of three kinds of different wavelength (1064nm, 532nm, 355nm), the highest 250kHz that can reach of the repetition frequency of laser, the wavelength span is from near-infrared to the ultraviolet, satisfies each application of laser field to the demand of different wavelength laser output, further promotes the development of laser technology.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and the preferred embodiments of the present invention are described in the above embodiments and the description, and are not intended to limit the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A laser with high repetition frequency and multi-wavelength output is characterized by comprising a pumping source (1), an optical coupling system (2), an end-pump rear cavity mirror (3), a laser gain medium (4), an acousto-optic Q-switch (5), a rotatable reflector (6), a first output mirror (7), a first frequency doubling crystal (8), a second output mirror (9), a third output mirror (10), a second frequency doubling crystal (11) and a third frequency doubling crystal (12), wherein pumping light emitted by the pumping source (1) enters the laser gain medium (4) through the optical coupling system (2); the end pump rear cavity mirror (3), the rotatable reflector (6), the first output mirror (7), the second output mirror (9) and the third output mirror (10) form a laser resonant cavity; the acousto-optic Q-switch (5) and the first frequency doubling crystal (8) are arranged in the laser resonant cavity; and the second output mirror (9) and the third frequency doubling crystal (12) are arranged outside the laser resonant cavity.
2. The high repetition frequency multi-wavelength output laser according to claim 1, wherein the pump source (1) is a light emitting diode with a center wavelength of 808 nm; one surface of the end-pump rear cavity mirror (3) is plated with a 808nm antireflection film, and the other surface of the end-pump rear cavity mirror is plated with a 808nm antireflection film and a 1064nm high-reflection film.
3. The laser with high repetition frequency and multi-wavelength output according to claim 1, wherein the laser gain medium (4) is neodymium-doped yttrium vanadate crystal, and antireflection films with the thickness of 1064nm and 808nm are plated on both surfaces of the medium.
4. The high repetition frequency multi-wavelength output laser according to claim 1, wherein the acousto-optic Q-switch (5) is a fused quartz crystal; the rotatable reflector (6) is plated with a 1064nm high-reflection film and can rotate at a certain angle.
5. The high repetition frequency, multi-wavelength output laser according to claim 1, wherein the first output mirror (7) has a transmittance of 40% in the 1064nm band.
6. The laser with high repetition frequency and multi-wavelength output according to claim 1, wherein the first frequency doubling crystal (8) and the second frequency doubling crystal (11) are lithium triborate crystals, and are coated with anti-reflection films of 1064nm and 532nm on both sides.
7. The laser with high repetition frequency and multi-wavelength output according to claim 1, wherein the second output mirror (9) is a green light (532nm) output mirror, one side of which is coated with a 1064nm high-reflection film and a 532nm anti-reflection film, and the other side of which is coated with a 532nm high-transmission film.
8. The laser with high repetition frequency and multi-wavelength output according to claim 1, wherein the third frequency doubling crystal is a frequency doubling lithium triborate crystal, and anti-reflection films with the thickness of 1064nm and 532nm are plated on both surfaces of the third frequency doubling crystal.
9. The laser with high repetition frequency and multi-wavelength output according to claim 1, wherein the third output mirror (10) is an infrared output mirror with a transmittance of 60%, and the output infrared laser passes through the second frequency doubling crystal (11) and the third frequency doubling crystal (12) to form an ultraviolet (355nm) laser output.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021171625.1U CN212968481U (en) | 2020-06-22 | 2020-06-22 | Laser with high repetition frequency and multi-wavelength output |
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| CN202021171625.1U CN212968481U (en) | 2020-06-22 | 2020-06-22 | Laser with high repetition frequency and multi-wavelength output |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389134A (en) * | 2021-12-31 | 2022-04-22 | 苏州英谷激光有限公司 | Common-cavity dual-wavelength continuous laser |
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2020
- 2020-06-22 CN CN202021171625.1U patent/CN212968481U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114389134A (en) * | 2021-12-31 | 2022-04-22 | 苏州英谷激光有限公司 | Common-cavity dual-wavelength continuous laser |
| CN114389134B (en) * | 2021-12-31 | 2024-04-16 | 苏州英谷激光有限公司 | Co-cavity dual-wavelength continuous laser |
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Effective date of registration: 20220330 Address after: 210000 room 0601, building C, Xingzhi Science Park, Xingzhi Road, Nanjing Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee after: NANJING MOVELASER TECHNOLOGY Co.,Ltd. Address before: Room 511, building C, Xingzhi Science Park, 6 Xingzhi Road, Nanjing Economic and Technological Development Zone, Jiangsu Province, 210000 Patentee before: NANJING ROMER LASER TECHNOLOGY Co.,Ltd. |
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Address after: 210000 room 0601, building C, Xingzhi Science Park, Xingzhi Road, Nanjing Economic and Technological Development Zone, Jiangsu Province Patentee after: Nanjing Mulai Laser Technology Co.,Ltd. Address before: 210000 room 0601, building C, Xingzhi Science Park, Xingzhi Road, Nanjing Economic and Technological Development Zone, Nanjing, Jiangsu Province Patentee before: NANJING MOVELASER TECHNOLOGY Co.,Ltd. |
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Address after: 210000 Building B2, Hongfeng Science Park, Kechuang Road, Nanjing Economic and Technological Development Zone, Jiangsu Province Patentee after: Nanjing Mulai Laser Technology Co.,Ltd. Address before: 210000 room 0601, building C, Xingzhi Science Park, Xingzhi Road, Nanjing Economic and Technological Development Zone, Jiangsu Province Patentee before: Nanjing Mulai Laser Technology Co.,Ltd. |