Cascaded optical parameter-based high-power red, green and blue optical maser

Abstract

The invention discloses a cascaded optical parameter-based high-power red, green and blue optical maser. The cascaded optical parameter-based high-power red, green and blue optical maser comprises a resonant cavity, a temperature control furnace, a piece of optical superlattice and a filtration system, wherein the resonant cavity consists of a pump light source, a calibration system, a focusing system, a front cavity mirror and a rear cavity mirror; the optical superlattice is formed by cascading different structures; the light emitted by the pump light source enters the resonant cavity through the calibration system and the focusing system; after the light passes through the optical superlattice with a cascading structure, red light and blue light are emitted from the rear cavity mirror; and the red light, the blue light and the residual pump green light form the red, green and blue optical maser. The damage resistant threshold of crystals is greatly improved, and the maximal pump light power born by the crystal is also correspondingly improved, so the red light and the blue light with higher power can be obtained. The thickness of the optical superlattice is increased, so that the incidence area of pump beams is increased and then the pump power which can be born by the crystal is improved. If the red light and the blue light with narrow bandwidth are obtained, an element, such as an FP standard device or a raster, is added into the cavity.

Description

technical field [0001] The invention relates to a device which utilizes a cascaded structure optical superlattice to realize the cascaded sum-frequency process of optical parametric oscillation and obtain high-power visible light band multi-wavelength laser output, especially a superlattice such as lithium niobate and lithium tantalate It is an all-solid-state red, green and blue laser with frequency conversion crystal. Background technique [0002] The development of display technology has gone through several stages of black and white display, color display and digital display. In the color era, the change from black and white to color shows a colorful world. In the digital age, from standard definition to high definition, from analog signal sources to digital signal sources, from small and medium-sized screens to large screens. Laser display is the "fourth generation" display technology (LDT) after the previous three generations of display technology. Laser display is a...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the above problems, and provide a high-power red, green, and blue laser based on the cascaded optical parametric process, which solves the problem that the existing red, green, and blue lasers have complex structures, are not conducive to integration, and have high costs. question

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