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All-solid-state laser device operating in wide temperature range

An all-solid-state, wide-temperature technology, applied in the field of lasers, can solve the problem that the output power is greatly affected by temperature, and achieve the effect of ensuring insensitivity and simple structure

Inactive Publication Date: 2015-09-16
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the disadvantage that the output power of the existing solid-state laser is greatly affected by temperature, and to provide an all-solid-state laser working in a wide temperature range. Stable operation within the temperature range of 100°C

Method used

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  • All-solid-state laser device operating in wide temperature range
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  • All-solid-state laser device operating in wide temperature range

Examples

Experimental program
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Embodiment 1

[0020] like figure 1 As shown, the all-solid-state laser working in a wide temperature range of the present invention includes a high-power LED light source 1, a first Paul prism 2 placed in sequence on the same optical axis, a laser gain medium 3, a polarizer 4, a 1 / 4 wave plate 5 and Second Paul Prism 6. The first Paul prism 2, the laser gain medium 3, the polarizer 4, the 1 / 4 wave plate 5 and the second Paul prism 6 are located on the same optical axis to form a resonant cavity to generate laser light; the laser gain medium 3 is Nd:Cr:YAG crystal, the shape of the crystal is a square rod, a round rod or a zigzag slat; the angle between the polarizer 4 and the optical axis is Brewster's angle; the 1 / 4 wave plate 5 is The zero-order wave plate corresponding to the output laser wavelength.

[0021] The ridges of the first Paul prism 2 and the second Paul prism 6 are placed perpendicular to each other to form a stable resonant cavity. The high-power LED light source 1 pumps...

Embodiment 2

[0023] like figure 1 As shown, the only difference between this embodiment and Embodiment 1 is that the laser gain medium 3 is Nd:Ce:YAG crystal.

Embodiment 3

[0025] like figure 1 As shown, the only difference between this embodiment and embodiment 1 is that the laser gain medium 3 is Nd:Cr:Ce:YAG crystal.

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Abstract

The invention relates to an all-solid-state laser device operating in a wide temperature range. The all-solid-state laser device comprises a high-power LED light source, two orthogonally-placed Porro prisms, a laser gain medium, a polarizing film and a quarter wave plate, wherein the high-power LED light source is used for generating pump light; the orthogonal Porro prisms, the laser gain medium, the polarizing film and the quarter wave plate are positioned on the same optical axis to form a resonant cavity for generating laser light; the laser gain medium is selected from the group consisting of Nd:Cr:YAG, Nd:Ce:YAG and Nd:Cr:Ce:YAG; an included angle between the polarizing film and the optical axis is a brewster angle; and the quarter wave plate is a zero-order wave plate corresponding to wavelength of the output laser light. The all-solid-state laser device is compact in structure and stable in performance, and can operate stably in a 100 DEG C temperature range from minus 40 DEG C to 60 DEG C.

Description

technical field [0001] The invention relates to a laser, in particular to an all-solid-state laser which can work stably in the temperature range of -40-+60°C. Background technique [0002] Light Emitting Diode, referred to as LED (Light Emitting Diode), is a kind of semiconductor diode that can convert electrical energy into light energy. The principle is: when a forward voltage is applied to the LED, the holes injected from the P area to the N area and the electrons injected from the N area to the P area are respectively connected with the electrons in the N area and the P area within a few microns near the PN junction. The holes in the region recombine, resulting in spontaneous emission of fluorescence. LEDs have the advantages of insensitivity to temperature, small size, low power consumption, long life, high efficiency, high brightness, non-toxic and environmental protection, etc. After packaging, LEDs are dustproof, waterproof, and antistatic, and are widely used in t...

Claims

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Application Information

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IPC IPC(8): H01S3/16H01S3/08H01S3/0933H01S3/06
Inventor 孟俊清陈苏园杨海龙谢银王明建陈卫标
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI