CN100588054C - Heat capacity type neodymium glass flaky laser - Google Patents
Heat capacity type neodymium glass flaky laser Download PDFInfo
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- CN100588054C CN100588054C CN200710156973A CN200710156973A CN100588054C CN 100588054 C CN100588054 C CN 100588054C CN 200710156973 A CN200710156973 A CN 200710156973A CN 200710156973 A CN200710156973 A CN 200710156973A CN 100588054 C CN100588054 C CN 100588054C
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Abstract
The invention discloses a neophane glass piece laser in heat capacity type. The invention is characterized in that the invention comprises a resonant cavity and an octagonal silvering reflector. The resonant cavity is a virtual confocal cavity which comprises a total reflective mirror and an output mirror; the octagonal silvering reflector is internally provided with a plurality of laser glass pieces which form 45 DEG with an optical axis; the optical axis of the laser glass piece is coincident with the optical axis of the resonant cavity; the upper side and the lower side of the laser glass pieces are respectively provided with pumping lights which are arranged in the reflector; the discharging direction of the pumping light is parallel to the direction of the laser; the pumping light iscoaxially and hermetically sleeved with a cerium-doped quartz pipe; cooling water is arranged between the quartz pipe and the pumping light; the invention has the advantages of simple structure, obtaining the laser output with high energy and high power by operation under high repeated frequencies in short time, uniform and stable laser output, recovering the glass working medium to original statein the operation interval of the device and avoiding the thermal lens effect and the thermal stress effect to the laser device.
Description
Technical field
The present invention relates to a kind of laser, especially relate to a kind of heat capacity type neodymium glass flaky laser.
Background technology
Because laser glass heat conductivility extreme difference, during the high repetition frequency running, serious thermal lensing effect can make that laser is broken to go out, thermal stress will make laser glass rupture, for overcoming this shortcoming, people have developed a lot of different lasers, as the heat capacity type tabular amorphous laser of moving, its feature is the laser medium motion, make photoflash lamp certain in a flash the regional area of pumping glass produce laser, another another zone of moment pumping, local pumping can reach higher power density and obtain high lasing efficiency, and cooling is distributed on the whole plate face, thereby can realize the laser output of high-average power, but the device power output of whole laser is subjected to restriction and the motion of laser medium and the difficulty that cooling has also brought mechanical structure etc. of sheet glass load capacity.
The patent No. is to disclose a kind of solid laser system with high average power in 88100715.3 the Chinese invention patent specification, be characterized in that it is by N platform laser, optically coupled system and electronic control system are formed, N platform laser is arranged fixed installation by certain, the N group photoflash lamp of electronic control system control N platform laser is lighted each self-corresponding laser medium of pumping successively and is produced laser, controlling said optically coupled system simultaneously is synchronized with the movement, with difference various lasers laser coupled to the zonule output of sending constantly, thereby obtain the high-average power laser of several hectowatts or several kilowatts.Though it has overcome the shortcoming of laser medium motion, the laser system structure is the ten minutes bulky complex still, and has brought the drift of output laser direction inevitably.
Summary of the invention
Technical problem to be solved by this invention provides a kind of simple in structure and uniform and stable heat capacity type neodymium glass flaky laser of output laser.
The present invention solves the problems of the technologies described above the technical scheme that is adopted: a kind of heat capacity type neodymium glass flaky laser, it comprises resonant cavity and octangle silver-coated reflector, described resonant cavity is the empty confocal cavity that comprises total reflective mirror and outgoing mirror, described octangle silver-coated reflector internal fixation is provided with even number sheet laser glass sheet, described laser glass sheet and optical axis setting at 45, the optical axis of described laser glass sheet and the optical axis coincidence of described resonant cavity, the both sides up and down of described laser glass sheet are respectively arranged with pumping lamp, described pumping lamp is arranged in the described reflector, the course of discharge of described pumping lamp is parallel with laser direction, co-axial seal is arranged with and mixes the cerium quartz ampoule on the described pumping lamp, be provided with cooling water between described quartz ampoule and the described pumping lamp, the maximum pump energy density of the single of described laser glass sheet is smaller or equal to 128J/cm
3The energy of described pumping lamp bears load smaller or equal to 12.8Kj, be coated with the anti-reflection film that optical maser wavelength is 1.053 μ m on the logical light face of described laser glass sheet, the depth of parallelism of described logical light face is smaller or equal to 10 "; evenness is 0.2 striped; fineness is PIII; the both ends of the surface of described laser glass sheet are provided with the Soft Roll limit; the quantity of described laser glass sheet is 12; the length of every laser glass sheet is 80mm, width is 54mm, thickness is 20mm, the length of described reflector is 650mm, width is 250mm, highly be 150mm, the quantity of described pumping lamp is four, the discharge channel of described pumping lamp is of a size of φ 20 * 650mm, outside dimension is φ 22 * 800mm, the diameter of described total reflective mirror and described outgoing mirror is 100mm, and the chamber of described resonant cavity is long to be 100cm.
Compared with prior art, advantage of the present invention is relatively simple for structure, can obtain high-energy-high power laser light output in short time high repetition frequency running, and the laser of output is uniform and stable, make glass work medium recovery to reset condition at the device running clearance, avoided the influence of thermal lensing effect and thermal stress Laser Devices; And laser can be recycled interruption emission high-energy-high-power laser pulse sequence.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present invention;
Fig. 2 is one of structural representation of laser glass sheet of the present invention;
Fig. 3 be laser glass sheet of the present invention structural representation two;
Fig. 4 is the structural representation of resonant cavity of the present invention;
Fig. 5 is one of structural representation of reflector of the present invention;
Fig. 6 be reflector of the present invention structural representation two.
Embodiment
Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.
As shown in the figure, a kind of heat capacity type neodymium glass flaky laser, it comprises resonant cavity and octangle silver-coated reflector 3, resonant cavity is the empty confocal cavity that comprises total reflective mirror 6 and outgoing mirror 7, the diameter phi of total reflective mirror 6 and outgoing mirror 7 is 100mm, the long L in the chamber of resonant cavity is 100cm, the length L 1 of reflector 3 is 650mm, width W 1 is 250mm, height H is 150mm, it is 80mm that reflector 3 internal fixation are provided with 12 leaf length L2, width W 2 is 54mm, thickness t is the laser glass sheet 4 of 20mm, laser glass sheet 4 and optical axis setting at 45, the optical axis O-O of laser glass sheet 4 overlaps with the optical axis O '-O ' of resonant cavity, the both sides up and down of laser glass sheet 4 are respectively arranged with two discharge channels and are of a size of φ 20 * 650mm, outside dimension is the pumping lamp 1 of φ 22 * 800mm, pumping lamp 1 is arranged in the reflector 3, the course of discharge of pumping lamp 1 is parallel with laser direction, on the pumping lamp 1 coaxial be arranged with by sealing ring 2 sealing mix cerium quartz ampoule 5, mix between cerium quartz ampoule 5 and the pumping lamp 1 and be provided with cooling water.
Require to be coated with the anti-reflection film that optical maser wavelength is 1.053 μ m in the foregoing description on the logical light face of laser glass sheet 4, the depth of parallelism of logical light face is smaller or equal to 10 ", evenness is that 0.2 striped, fineness are PIII; the both ends of the surface of laser glass sheet 4 are provided with Soft Roll limit 41, and the maximum pump energy density of the single of laser glass sheet 4 is smaller or equal to 128J/cm
3, the energy of pumping lamp bears load smaller or equal to 12.8Kj, and by the laser that the size of above-mentioned setting obtains, finishing back glass temperature rise at laser is 62 °, is about 40 minutes cooling time.
Claims (1)
1, a kind of heat capacity type neodymium glass flaky laser, it comprises resonant cavity and octangle silver-coated reflector, described resonant cavity is the empty confocal cavity that comprises total reflective mirror and outgoing mirror, described octangle silver-coated reflector internal fixation is provided with even number sheet laser glass sheet, described laser glass sheet and optical axis setting at 45, the optical axis of described laser glass sheet and the optical axis coincidence of described resonant cavity, the both sides up and down of described laser glass sheet are respectively arranged with pumping lamp, described pumping lamp is arranged in the described reflector, the course of discharge of described pumping lamp is parallel with laser direction, co-axial seal is arranged with and mixes the cerium quartz ampoule on the described pumping lamp, be provided with cooling water between described quartz ampoule and the described pumping lamp, the maximum pump energy density of the single of described laser glass sheet is smaller or equal to 128J/cm
3The energy of described pumping lamp bears load smaller or equal to 12.8KJ, it is characterized in that being coated with the anti-reflection film that optical maser wavelength is 1.053 μ m on the logical light face of described laser glass sheet, the depth of parallelism of described logical light face is smaller or equal to 10 "; evenness is 0.2 striped; fineness is PIII; the both ends of the surface of described laser glass sheet are provided with the Soft Roll limit; the quantity of described laser glass sheet is 12; the length of every laser glass sheet is 80mm, width is 54mm, thickness is 20mm, the length of described reflector is 650mm, width is 250mm, highly be 150mm, the quantity of described pumping lamp is four, the discharge channel of described pumping lamp is of a size of φ 20 * 650mm, outside dimension is φ 22 * 800mm, the diameter of described total reflective mirror and described outgoing mirror is 100mm, and the chamber of described resonant cavity is long to be 100cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710156973A CN100588054C (en) | 2007-11-22 | 2007-11-22 | Heat capacity type neodymium glass flaky laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710156973A CN100588054C (en) | 2007-11-22 | 2007-11-22 | Heat capacity type neodymium glass flaky laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101202410A CN101202410A (en) | 2008-06-18 |
| CN100588054C true CN100588054C (en) | 2010-02-03 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200710156973A Expired - Fee Related CN100588054C (en) | 2007-11-22 | 2007-11-22 | Heat capacity type neodymium glass flaky laser |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101976796B (en) * | 2010-09-06 | 2011-11-16 | 中国科学院上海光学精密机械研究所 | Method for inhibiting amplified spontaneous radiation of large-size sheet laser neodymium glass |
| CN102280801B (en) * | 2011-07-01 | 2013-01-09 | 宁波大学 | Design method of cooler used for heat capacity type glass laser |
| CN102280806A (en) * | 2011-07-01 | 2011-12-14 | 宁波大学 | Plate glass laser device |
| CN104064955B (en) * | 2014-06-13 | 2017-04-05 | 中国科学院西安光学精密机械研究所 | Immersed cooling solid laser |
| CN106549297B (en) * | 2016-10-26 | 2018-12-18 | 同济大学 | A kind of preparation method of the high antiferromagnetic thin film system of neodymium glass laser back incident-type |
| CN113324031B (en) * | 2021-05-28 | 2022-06-28 | 中国科学院上海光学精密机械研究所 | Strong laser radiation resistant sealed installation method for amplifier partition plate glass |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4155046A (en) * | 1978-01-11 | 1979-05-15 | The United States Of America As Represented By The United States Department Of Energy | Segmented amplifier configurations for laser amplifier |
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2007
- 2007-11-22 CN CN200710156973A patent/CN100588054C/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4155046A (en) * | 1978-01-11 | 1979-05-15 | The United States Of America As Represented By The United States Department Of Energy | Segmented amplifier configurations for laser amplifier |
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| CN101202410A (en) | 2008-06-18 |
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Granted publication date: 20100203 Termination date: 20131122 |