Setting method of cascade connection superlattice laser and dual wavelength laser based on intermittent oscillation

Abstract

The configuration method of a all-solid state white light laser based on intermittent-oscillation double-wavelength laser and cascade superlattice comprises following steps: constituting a efficient and stable white light laser by selecting a Nd<3+>-doped intermittent-oscillation double-wavelength laser as the fundamental wave light source and by adopting an optical superlattice with two different cascade structures as a nonlinear crystal to output red, green and blue laser beams in proper proportions; and disposing the optical superlattice with cascade structure in a temperature control furnace, wherein the optical superlattice has two segments; the first segment has a multichannel structure to achieve 1,319 nm frequency doubling and frequency tripling to obtain a 660 nm red light output and a 440 nm blue light output; the second segment is a periodical structure to achieve 1,064 nm quasi-phase matching frequency doubling to obtain a 532 nm blue light output; and the power ratio between two IR lights can be adjusted by adjusting the delay of the intermittent-oscillation double-wavelength laser, thus controlling the ratio of the red, the green and the blue lights to obtain a quasi-white light output.

Description

Technical field: [0001] The invention relates to an all-solid-state white light laser, in particular to an all-solid-state laser which uses an intermittently oscillating dual-wavelength laser as a fundamental wave source and uses a cascaded optical superlattice as a frequency conversion crystal to realize stable white light output. Background technique: [0002] Red, green, and blue light are the three primary colors in nature, and visible light of all colors can be obtained by mixing red, green, and blue in a certain proportion. Using red, green and blue lasers to achieve full-color display, the colors are richer and the color saturation is higher, which can display the richest, brightest and most realistic colors in nature. White light lasers require that the output power of red, green, and blue light can be proportioned according to a certain ratio, and using optical superlattice as a frequency conversion crystal is an important means to achieve red, green, and blue outpu...

AI Technical Summary

Problems solved by technology

The patent only involves an intermittently oscillating dual-wavelength laser, and does not involve the use of optical superlattices as frequency conversion crystals to achieve high-efficiency white light output

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