Wide temperature range laser based on hexagon plate strip structure

A slab structure and hexagonal technology, applied in the field of lasers, can solve the problem that the output power of all solid-state lasers is greatly affected by temperature, and achieve the effect of ensuring insensitivity, large output power, and high beam quality

Inactive Publication Date: 2016-01-27
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
  • Description
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Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcoming that the output power of the existing all-solid-state laser pumped by laser diodes is greatly affected by temperature, and to provide a wide-temperature laser based on a hexagonal slab structure. The laser has a compact structure, Stable performance, can work stably in the temperature range of 100°C from -30°C to +70°C

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  • Wide temperature range laser based on hexagon plate strip structure
  • Wide temperature range laser based on hexagon plate strip structure
  • Wide temperature range laser based on hexagon plate strip structure

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Embodiment 1

[0025] Such as figure 1 As shown, the present invention is based on a wide temperature laser embodiment 1 of a hexagonal slab structure, including a first Paul prism 1, a 0.57 wave plate 2, a polarizing beam splitter 3, a 1 / 4 wave plate 4, a laser gain medium 5, A high-power laser diode light source 6 and a second Paul prism 7. The high-power laser diode light source 6 is composed of several conduction-cooled laser diodes, arranged around the laser medium for providing pump light; the first Paul prism 1, 0.57 wave plate 2, polarization beam splitter 3, 1 / 4 wave plate 4, laser gain medium 5 and second Paul prism 7 are arranged in sequence to form a polarization coupling output resonant cavity, the output rate of the resonant cavity can be changed by rotating the 1 / 4 wave plate, the first Paul prism 1 and The second Paul prism 7 is placed orthogonally; the laser gain medium 5 is the Nd:YAG medium of the hexagonal slab structure, and the included angles between the optical axis ...

Embodiment 2

[0031] Such as Figure 4 As shown, it can be seen from the figure that the present invention is based on the wide temperature laser embodiment 2 of the hexagonal slab structure, including the first Paul prism 1, the 0.57 wave plate 2, the polarizing beam splitter 3, the 1 / 4 wave plate 4, the laser Gain medium 5, high-power laser diode light source 6, second Paul prism 7 and Pockels cell 8. The first Paul prism 1, the 0.57 wave plate 2, the Pockels cell 8, the polarization beam splitter 3, the 1 / 4 wave plate 4, the laser gain medium 5 and the second Paul prism 7 are arranged in sequence to form a polarization coupling output The resonant cavity can change the output rate of the resonant cavity by rotating the 1 / 4 wave plate, and the first Paul prism 1 and the second Paul prism 7 are orthogonally placed; the laser gain medium 5 is the Nd of the hexagonal slab structure: YAG medium, the angle between the optical axis and the incident surface and the outgoing surface of the slab ...

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Abstract

A wide temperature range laser based on hexagon plate strip structure comprises a large power laser diode light source, two orthogonally placed porro prisms, a laser gain medium, a polarization beam splitter, 0.57 wave sheet and 1/4 wave sheet, wherein the laser gain medium is a hexagon plate strip structure formed by a rectangle together with an isosceles trapezoid; the large power laser diode light source comprises a plurality of conduction-cooled laser diode arrays; the orthogonally placed porro prisms, the laser gain medium, the polarization beam splitter, the 0.57 wave sheet and the 1/4 wave sheet are used to construct a resonant cavity for producing laser; and the 0.57 wave sheet and the 1/4 wave sheet are zero-order wave sheets outputting laser with corresponding wavelengths. According to the invention, the structure is compact; the performance is stable; and the wide temperature range laser can work stably under the condition of no cooling with the temperature range of minus 30 to plus 70 DEG C.

Description

technical field [0001] The invention relates to a laser, especially a wide-temperature laser based on a hexagonal slab structure, which can work stably in the temperature range of -30-+70°C without water cooling. Background technique [0002] In general, the temperature of the laser is controlled by a water-cooling device, but the water-cooling device is bulky and consumes a lot of power, which is obviously inconvenient for some outdoor lasers. my country has a vast territory, and some special-purpose lasers are required to adapt to different environmental changes, which puts forward new requirements for the design of lasers. These requirements include easy portability, low power consumption, high conversion efficiency, and strong temperature and shock resistance. Lasers that work without water cooling over a wide temperature range are of great significance for practical needs. [0003] With the development of semiconductor laser technology, laser diodes are widely used as ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/0941H01S3/08H01S3/16
Inventor 马秀华魏大康朱小磊李世光谢小兵董怡静张俊旋
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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