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Multi-tube blue light semiconductor frequency doubling method and device based on spectral beam combination

A spectral beam combining and semiconductor technology, which is applied in the field of blue semiconductor laser frequency doubling, can solve the problems that the blue semiconductor laser frequency doubling system and method are difficult to apply, and can improve the poor beam quality, improve the far-field divergence angle, and facilitate device control. Effect

Active Publication Date: 2021-10-08
HUAZHONG UNIV OF SCI & TECH +1
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Problems solved by technology

Therefore, this typical blue light semiconductor laser frequency doubling system and method is difficult to apply to the occasion of higher ultraviolet light power

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  • Multi-tube blue light semiconductor frequency doubling method and device based on spectral beam combination
  • Multi-tube blue light semiconductor frequency doubling method and device based on spectral beam combination
  • Multi-tube blue light semiconductor frequency doubling method and device based on spectral beam combination

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Embodiment Construction

[0032] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0033] figure 1 A schematic structural diagram of a multi-tube blue light semiconductor frequency doubling device based on spectral beam combining and a ring cavity is shown according to an embodiment of the present invention.

[0034] Each emitting unit on the blue light diode array 2 can be regarded as the central emitting unit moving a certain distance along the x direction. When the centra...

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Abstract

The invention discloses a multi-tube blue light semiconductor frequency doubling method and device based on spectral beam combination, which belongs to the technical field of semiconductor laser. The method specifically comprises the following steps of S1, exciting a blue light diode array to emit a plurality of light beams which are incident to the same area, S2, diffracting the multiple light beams entering the same area at the same diffraction angle to form combined light, S3, reflecting one part of the combined light back to the blue light diode array to form feedback for compressing the line width, and transmitting the other part of the combined light to output a narrow-line-width light beam, S4, forming oscillation on the narrow-line-width light beam output through transmission, and meanwhile conducting frequency doubling and then conducting output, and S5, enabling the output light after frequency doubling to be split and then focused, and outputting deep ultraviolet light. The invention further provides a multi-tube blue light semiconductor frequency doubling device based on spectral beam combination. The method and the device provided by the invention are a novel pulse power supply pumping multi-tube blue light diode array frequency doubling system, and can improve the frequency doubling efficiency of input blue light and the power of output deep ultraviolet light.

Description

technical field [0001] The invention belongs to the technical field of semiconductor lasers, and more specifically relates to a blue light semiconductor laser frequency doubling method and device based on spectral beam combining, which is a novel pulse power supply pumped multi-tube blue light diode array frequency doubling system. Background technique [0002] With the continuous development of the laser technology field, how to obtain higher power ultraviolet light output has become an important issue. Deep ultraviolet lasers are one of the research hotspots in Raman spectroscopy. For laser wavelengths below 260nm, the interfering fluorescent background can be separated from the Raman signal. At present, most of the established laser systems for deep ultraviolet Raman spectroscopy are based on gas lasers or quadrupled frequency solid-state lasers. Such lasers have relatively large power consumption, large packages and complicated implementation processes. It has become a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S5/14H01S5/026H01S5/183
CPCH01S5/14H01S5/18361H01S5/0267
Inventor 袁琴云陈曦唐霞辉王平方星刘松嘉范奥姚巍
Owner HUAZHONG UNIV OF SCI & TECH
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