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Picosecond all-solid-state ultraviolet laser based on gallium oxide crystal

An ultraviolet laser, all-solid-state technology, applied in the direction of lasers, laser components, laser optical equipment, etc., can solve the problems of low output power and pulse energy, can not achieve picosecond pulse width, etc., to achieve reliable performance and improved pulse energy , design simple effects

Inactive Publication Date: 2019-08-06
北京镓族科技有限公司
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Problems solved by technology

[0007] The invention aims to solve the problem that the output power and pulse energy of the existing solid-state ultraviolet laser are not high, and the pulse width of picosecond (ps) level cannot be realized

Method used

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  • Picosecond all-solid-state ultraviolet laser based on gallium oxide crystal

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Embodiment Construction

[0023] After increasing the spectral width to make the pulse into the picosecond level, it has the advantages of larger output power, higher pulse energy, and tunable repetition frequency. β-Ga 2 o 3 The forbidden band width is 4.9eV, the absorption cut-off edge is located at 250nm, the ultraviolet transmittance can reach more than 80%, and it has good chemical stability and thermal stability. Therefore, the present invention selects gallium oxide crystal as the crystal to increase the spectral width to form an all-solid-state ultraviolet laser with picosecond (ps) level pulse width.

[0024] In general, the ultraviolet laser proposed by the present invention includes a fundamental frequency light generating device, a frequency doubling crystal, and optical components required for the optical path. The fundamental frequency light generating device outputs the fundamental frequency light, and the frequency doubling crystal doubles the frequency of the fundamental frequency li...

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Abstract

The invention discloses a picosecond all-solid-state ultraviolet laser, which comprises a fundamental frequency light generating device, a frequency doubling crystal and a spectral width increasing crystal. The fundamental frequency light generating device is used for outputting fundamental frequency light. The frequency doubling crystal is used for doubling the frequency of the fundamental frequency light to generate frequency doubling light. The spectral width increasing crystal is a gallium oxide crystal, and is used for increasing the spectral line width of the frequency doubling light. 236.5nm ultraviolet laser output with picosecond-level pulse width can be obtained. The picosecond all-solid-state ultraviolet laser has the advantages of high stability and high beam quality, has a compact structure, and is suitable for repeated production and assembly.

Description

technical field [0001] The invention relates to a gallium oxide crystal-based all-solid-state ultraviolet laser, in particular to a gallium oxide crystal-based picosecond all-solid-state ultraviolet laser capable of obtaining picosecond pulses. Background technique [0002] All solid-state lasers have the advantages of high efficiency, long life and small size. Moreover, it is easier to obtain high-power and high-beam-quality lasers than other types of lasers, which makes all-solid-state lasers widely used in scientific research, national defense, medical and industrial fields. All solid-state lasers have important applications in coherent light detection, advanced manufacturing, environmental monitoring, material processing and processing, ultra-high density storage, optical communications, biological detection, etc. The remarkable progress made by picosecond laser technology has made It becomes a reliable tool for industrial microfabrication that was previously impossible...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/00H01S3/11G02F1/35G02F1/37G02B27/28
CPCG02B27/286G02F1/353G02F1/37H01S3/005H01S3/0071H01S3/0092H01S3/11
Inventor 陈政委刘文军张晓
Owner 北京镓族科技有限公司
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