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White laser light source generation device and method

A white light laser and generation device technology, applied in the direction of lasers, laser components, phonon exciters, etc., can solve the problems of white light laser light source generation, achieve high conversion efficiency, high nonlinear conversion rate, and simple manufacturing process

Pending Publication Date: 2021-05-11
青岛鲲腾量子应用技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The prior art does not solve the technical problem of how to generate a white light laser source in a single cycle quasi-phase matching process

Method used

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  • White laser light source generation device and method
  • White laser light source generation device and method
  • White laser light source generation device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A white light laser source generating device, such as figure 1 As shown, the device includes the following components:

[0055] A first pump laser 1, configured to generate a first pump laser;

[0056] The second pump laser 3 is used to generate a second pump laser;

[0057] The wavelength of the first pump laser is smaller than the wavelength of the second pump laser;

[0058] The first polarization and focusing module 2 located between the first pump laser 1 and the laser beam combiner 5, the first polarization and focusing module 2 is used to transmit the first pump laser output from the first pump laser 1 to the laser beam combiner 5;

[0059] The second polarization and focusing module 4 located between the fiber coupling head 32 and the laser beam combiner 5, the second polarization and focusing module 4 is used to transmit the second pump laser output from the fiber coupling head 32 to the laser beam combiner 5 ;

[0060] The laser beam combiner 5 is used to...

Embodiment 2

[0069] On the basis of Example 1, a method for generating a white light laser light source, setting the temperature of the periodically polarized crystal 6 at 21° C. to 22° C. includes the following steps:

[0070] S1, the first pump laser 1 outputs a first pump laser with a wavelength of 760nm-800nm; the second pump laser 3 outputs a second pump laser with a wavelength of 1000nm-1100nm;

[0071] S2, the laser beam combiner 5 integrates the first pump laser and the second pump laser in step S1 so that all the pump lasers are emitted from the laser beam combiner 5 in the same optical path direction;

[0072] S3, the first pump laser and the second pump laser located in the same optical path direction in step S2 enter the periodically polarized crystal 6, and the periodically polarized crystal 6 generates the first pump laser with a wavelength of 380nm-400nm violet laser, the periodically polarized crystal 6 generates a green laser with a wavelength of 500nm to 550nm for the sec...

Embodiment 3

[0077] On the basis of Embodiment 2, the polarization period Λ of the periodically poled crystal 6 of the present embodiment is 8.95um, the wavelength of the first pump laser is 784nm, the wavelength of the second pump laser is 1063.8nm, and the violet laser The wavelength of the laser is 392nm, and the wavelength of the green laser is 531.9nm. Such as figure 2 As shown, the abscissa is the temperature of the periodically polarized crystal 6, and the ordinate is the conversion rate of the first pump laser with a wavelength of 784nm to generate a violet laser with a wavelength of 392nm by the periodically polarized crystal 6 and the periodic poled crystal 6 The conversion rate of the second pump laser with a wavelength of 1063.8nm to generate a green laser with a wavelength of 531.9nm, from figure 2 It can be known that at the same temperature, the conversion rates of the two are the same. In this embodiment, the temperature of the periodically poled crystal 6 is set at 21....

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Abstract

The invention relates to the field of white laser light source manufacturing, and concretely relates to a white laser light source generating device and method. The device comprises: a first pump laser used for generating first pump laser; a second pump laser used for generating second pump laser, wherein the wavelength of the first pumping laser is smaller than that of the second pumping laser; a laser beam combiner used for combining the first pumping laser and the second pumping laser which enter the laser beam combiner from different incident light path directions into pumping laser with the same emergent light path direction, namely combined pumping laser; and a periodically poled crystal which generates purple laser from part of the first pumping laser in the combined pumping laser, generates green laser from the second pumping laser, and generates white laser from the purple laser, the green laser and the remaining first pumping laser in the combined pumping laser. The periodically poled crystal converts two beams of incident pumping laser into purple laser and green laser at the same time, so that the necessary conditions for generating a white laser light source are met.

Description

technical field [0001] The invention relates to the field of manufacturing white light laser light sources, in particular to a white light laser light source generation device and method. Background technique [0002] The nonlinear three-wave mixing process includes frequency doubling, sum frequency and difference frequency. In the interaction of nonlinear processes, the phase matching between the interacting ones is very important. At present, the main phase matching methods include birefringence phase matching (Birefringence phase matching, BPM) and quasi-phase matching (Quasi-phase matching, QPM). [0003] Compared with ordinary white light sources (such as sunlight, incandescent lamps, white LED lamps, etc.), white light laser sources, short-wave laser sources and supercontinuum laser sources have the advantages of high brightness, strong peak power, and wide frequency coverage. Research, national defense and military, lighting, communication technology, information tec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/067H01S3/08H01S3/10
CPCH01S3/06712H01S3/08027H01S3/10053
Inventor 周志远杨凯李银海
Owner 青岛鲲腾量子应用技术有限公司
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