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A space-borne high-energy dual-wavelength all-solid-state pulsed laser

A pulsed laser and high-energy technology, applied in the field of lasers, can solve problems such as reducing operating voltage, and achieve the effects of improving reliability, strong environmental adaptability, and high-performance mechanical stability

Active Publication Date: 2022-01-11
BEIJING RES INST OF TELEMETRY +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The present invention aims to solve the problem of space-borne miniaturized laser output, and provides a space-borne high-energy dual-wavelength all-solid-state pulsed laser, which uses an orthogonal Paul prism cavity to improve the stability of the optical path, and uses the voltage adjustment of the electro-optical Q switch to realize a resonant cavity Adjust the output coupling transmittance and reduce the working voltage, use two PBS to realize the bending of the optical path, and realize the miniaturization and compactness of the laser

Method used

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  • A space-borne high-energy dual-wavelength all-solid-state pulsed laser
  • A space-borne high-energy dual-wavelength all-solid-state pulsed laser

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Embodiment 1

[0042] Such as figure 1 As shown, a space-borne high-energy dual-wavelength all-solid-state pulsed laser includes an active Q-switched oscillator 1 for outputting high-beam-quality oscillating light, which is used to perform beam shaping on the oscillating light and output it after primary power amplification. A pre-power amplifier 2, a main power amplifier 3 for beam shaping the oscillating light, outputting laser light after secondary power amplification, and a frequency doubling module 4 for generating dual-wavelength laser light;

[0043] The active Q-switched oscillator 1 is a U-shaped resonant cavity, and the active Q-switched oscillator 1 includes a first Paul prism 11, a first optical wedge 12, a first wave plate 13, a slab crystal 14, and a first polarization beam splitter prism arranged in sequence. 15. The second polarization splitter prism 16, the electro-optical Q switch 17, the second wave plate 18, the second optical wedge 19, the second Paul prism 1a and the pu...

Embodiment 2

[0045] Such as figure 2 As shown, a space-borne high-energy dual-wavelength all-solid-state pulsed laser includes an active Q-switched oscillator 1 for outputting high-beam-quality oscillating light, which is used to perform beam shaping on the oscillating light and output it after primary power amplification. A pre-power amplifier 2, a main power amplifier 3 for beam shaping the oscillating light, outputting laser light after secondary power amplification, and a frequency doubling module 4 for generating dual-wavelength laser light;

[0046] The active Q-switched oscillator 1 is a U-shaped resonant cavity, and the active Q-switched oscillator 1 includes a first Paul prism 11, a first optical wedge 12, a first wave plate 13, a slab crystal 14, and a first polarization beam splitter prism arranged in sequence. 15. The second polarization splitter prism 16, the electro-optical Q switch 17, the second wave plate 18, the second optical wedge 19, the second Paul prism 1a and the p...

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Abstract

The invention provides a space-borne high-energy dual-wavelength all-solid-state pulsed laser, which includes an active Q-switched oscillator, a pre-power amplifier, a main power amplifier, and a frequency doubling module in sequence. The active Q-switched oscillator is a U-shaped resonant cavity, including a first Paul prism, first optical wedge, first wave plate, slab crystal, first polarizing beam splitter, second polarizing beam splitting prism, electro-optic Q switch, second wave plate, second optical wedge, second Paul prism and set in The pumping diode array on the slab crystal, the pre-power amplifier and the main power amplifier all include beam shaping mirror groups. The invention can realize pulsed laser output with high energy, high stability and high reliability, reduce the volume and weight of the laser, and is suitable for multi-platform applications, especially space-borne platforms, which can be used as space-borne aerosol detection lidar and space-borne ranging LiDAR and other detection light sources.

Description

technical field [0001] The invention relates to the technical field of lasers, in particular to a spaceborne high-energy dual-wavelength all-solid-state pulsed laser. Background technique [0002] LiDAR is an active remote sensing detection technology. Due to the advantages of high detection accuracy and high resolution, all-weather work, small size and light weight, LiDAR is widely used in ranging, surveying and mapping, and environmental monitoring. Space-borne lidar is a lidar payload applied on satellites or spacecraft, and is currently mainly used in laser ranging and laser remote sensing. The core of spaceborne lidar is its detection source space laser. Due to the particularity of the application environment, the design of space lasers needs to comprehensively consider the harsh space environment, limited satellite resources, and unmaintainability, etc., and special design in terms of reliability, environmental adaptability, weight, volume, power consumption, and com...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/115H01S3/00
CPCH01S3/0071H01S3/115
Inventor 李静赵一鸣叶青周永升姜国庆于勇李凉海
Owner BEIJING RES INST OF TELEMETRY
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