High-efficiency optical parametric oscillator

By designing the pump source output component, coupling system, resonant cavity mirror and optical parameter adjustment component in the optical parameter oscillator, adjusting the optical power density of the signal light, the problem of adjustment difficulties under different power pump conditions is solved, and high efficiency and high-quality light-light conversion effect is achieved.

CN119674687APending Publication Date: 2025-03-21HUBEI HUAZHONG PHOTOELECTRIC SCI & TECH CO LTD
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Patent Information

Application Number
CN202411766130.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-03-21

AI Technical Summary

Technical Problem

Existing optical parametric oscillators are difficult to adjust under different power pump conditions, affecting the light-light conversion efficiency and beam quality.

Method used

A high-efficiency optical parameter oscillator is designed to adjust the optical power density of the signal light to adapt to different power pump conditions by setting up a pump source output assembly, coupling system, resonant cavity mirror and optical parameter adjustment assembly on the optical path, including a half-wave plate and a polarization spectroscopy prism.

Benefits of technology

Under different power pumping conditions, the light-light conversion efficiency and beam quality are improved, the problem of cumbersome adjustment of the optical parametric oscillator is solved, and high-efficiency and high-quality parametric light output is achieved without changing the cavity structure.

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Abstract

The invention discloses a high-efficiency optical parametric oscillator, and belongs to the technical field of lasers, the high-efficiency optical parametric oscillator comprises a pumping source output assembly, a coupling system, a first resonant cavity mirror and a nonlinear crystal which are sequentially arranged along the direction of an optical path, a dispersion prism is arranged at a light outlet of the nonlinear crystal, and the dispersion prism can divide light into signal light and idler frequency light; the dispersion prism and the light source are transmitted along a first light path and a second light path respectively, a second resonant cavity mirror is arranged on the first light path, an optical parameter adjusting assembly is arranged between the dispersion prism and the second resonant cavity mirror, and a third resonant cavity mirror is arranged on the second light path. According to the high-efficiency optical parametric oscillator provided by the invention, the light-light conversion efficiency and high light beam quality of parametric light can be simultaneously obtained under different power pumps under the conditions of not changing a cavity type structure and not needing to be reassembled and adjusted under the different power pumps.
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