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Tunable all-solid-state white light laser system

A white-light laser and all-solid-state technology, applied to lasers, laser components, phonon exciters, etc., can solve the problems of complex beam combination, lower production efficiency, increase production steps and costs, etc., and achieve white light chromaticity adjustment Flexible, Easy to Integrate, Satisfies the Effects of Colorimetrically Stringent Applications

Active Publication Date: 2019-08-23
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the combination technology of red, green and blue three-primary laser beams is the most common method to realize white light laser, but the light combination method of many beams is complicated, and the production efficiency will inevitably be reduced in the mass production process, and the production steps and costs will be increased.

Method used

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  • Tunable all-solid-state white light laser system
  • Tunable all-solid-state white light laser system
  • Tunable all-solid-state white light laser system

Examples

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Effect test

Embodiment 1

[0043] A tunable all-solid-state white-light laser system, such as figure 1 As shown, it includes a blue LD 8, a self-frequency doubling yellow laser and a laser beam combining component. The light emitted by the blue LD 8 and the self-frequency doubling yellow laser are combined to form a white laser by the laser beam combining component, wherein the blue The working wavelength of LD 8 is 440nm, and the working wavelength of self-frequency doubling yellow laser is 577nm;

[0044] In this embodiment, the laser beam combining group is a beam splitter assembly, and the beam splitter assembly includes a beam splitter 9, and the yellow light beam emitted from the frequency-doubled yellow laser is incident on the yellow beam of the beam splitter 9 at an incident angle of 45°. The light reflection mirror surface changes the direction of the light path by 90°, and merges with the blue light beam emitted by the blue light LD 8 and perpendicular to the incident direction of the yellow ...

Embodiment 2

[0049] A tunable all-solid-state white light laser system, its structure is as shown in Embodiment 1, the difference is that the non-laser active area of ​​the laser self-frequency doubling crystal is provided with a semiconductor cooling plate 6, which is close to the non-laser area of ​​the self-frequency doubling crystal. In the laser action area, the temperature of the laser self-frequency doubling crystal is stabilized within a certain range (5-30°C).

Embodiment 3

[0051] A tunable all-solid-state white light laser system, its structure is as shown in embodiment 1, the difference is, as figure 2 As shown, the laser beam combining component is an optical fiber combining component. The fiber combining component includes an optical fiber 10, two ports A at the head end and a port B at the tail end. 8. The other port A is connected with a self-frequency doubling yellow laser, leading the light emitted by the blue LD 8 and the self-frequency doubling yellow laser into the optical fiber 10 so that the blue light and yellow light are mixed and combined inside the fiber , directly output the mixed white light through port B at the end of the fiber.

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Abstract

The invention relates to a tunable all-solid-state white light laser system and belongs to the technical field of white laser display. The system comprises a blue light LD, a self-frequency doubling yellow laser and a laser beam combining assembly, wherein the light emitted by the blue light LD and the light emitted by the self-frequency doubling yellow laser are combined through the laser beam combining assembly to form white light laser, and the working wavelength of the blue light LD is 430-450 nm, and the working wavelength of the self-frequency doubling yellow laser is 560-590nm. According to the spatial color mixing principle, the white light laser is obtained through matching according to a proper proportion, and the blue light components and yellow light components in the system are independently adjustable; the adjustment of cold white light, natural white light and warm white light of the system can be achieved by controlling the power ratio of the blue light components and the yellow light components; a super-continuum spectrum generation device and complex devices such as white light extraction are not needed, and the system is adjustable in real-time chromaticity, is easy to integrate, and is particularly suitable for the field of high-power special illumination display.

Description

technical field [0001] The invention relates to an adjustable all-solid-state white light laser system, which belongs to the technical field of white laser display. Background technique [0002] In recent years, the development of lighting display devices based on light-emitting diodes (Light-Emitting Diode, LED) as a light source or excitation light source has shown great application potential, and has been used in general lighting, landscape lighting, stage lighting, automotive lighting, traffic signals , backlight, display, indicator light and camera flash, etc., and will play an important role in the fields of medical treatment, information, agriculture, aviation and aerospace. However, in order to make LEDs and related devices widely used in special places or fields such as airports and stadiums, high-power integrated white light sources have yet to be developed. [0003] At present, the most commonly used method for manufacturing white LEDs is to coat a layer of yello...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/109H01S3/105H01S3/10
CPCH01S3/10H01S3/105H01S3/1095
Inventor 张怀金于浩海王继扬
Owner SHANDONG UNIV
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