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Self-pumping optical parametric oscillation matrix crystal and preparation method thereof

An optical parametric oscillation, matrix crystal technology, applied in crystal growth, chemical instruments and methods, self-melting liquid pulling method, etc., can solve the problems of increasing cost, restricting promotion, increasing laser volume, etc. The effect of the light path

Inactive Publication Date: 2020-08-25
UNIV OF JINAN +2
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the complex components of the laser, it increases the cost and increases the difficulty of optical path adjustment. The most serious is the increase in the volume of the laser, which limits the promotion of military equipment.

Method used

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  • Self-pumping optical parametric oscillation matrix crystal and preparation method thereof
  • Self-pumping optical parametric oscillation matrix crystal and preparation method thereof
  • Self-pumping optical parametric oscillation matrix crystal and preparation method thereof

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Embodiment Construction

[0025] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0026] In an embodiment of the present invention, a method for preparing a self-pumped optical parametric oscillation matrix crystal includes the following steps:

[0027] S1. Preparation of neodymium and magnesium double-doped lithium niobate polycrystalline material: weigh lithium carbonate and niobium oxide according to the Li / Nb molar ratio of 48.6:51.4, weigh magnesium oxide according to the Mg / Nb molar ratio of 4-6%, and weigh according to Nd / Nb Weigh ne...

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Abstract

The invention discloses a self-pumping optical parametric oscillation matrix crystal. According to the preparation of the crystal, a rare earth doped laser crystal and a MgO: PPLN nonlinear optical parametric oscillation crystal are combined to form a Re: Mg: LN composite crystal; ferroelectric domain periodic inversion treatment is performed on the Re: Mg: LN composite crystal. According to the periodically polarized double-doped lithium niobate crystal, the laser crystal and the nonlinear crystal are combined into the multifunctional composite crystal, and therefore, the light path of an intermediate-infrared laser is simplified, the size of the intermediate-infrared laser is reduced; and the periodically polarized double-doped lithium niobate crystal not only has the nonlinear optical parametric oscillation effect of the MgO:PPLN, but also has the light-emitting characteristic of the rare earth laser crystal.

Description

technical field [0001] The invention relates to the technical field related to a composite multifunctional crystal material, in particular to a matrix crystal for a miniaturized mid-infrared laser based on self-pumped optical parametric oscillation and a preparation method thereof. Background technique [0002] Due to its important applications in the fields of national defense, medical treatment, industry, and scientific research, mid-infrared lasers have become one of the research hotspots in the field of laser technology at home and abroad. The mid-infrared laser in the 2.5-5 micron band is in the atmospheric window band, and has gradually become the main detection technology that national security relies on. (1) infrared reconnaissance, (2) infrared night vision, (3) infrared guided missiles, (5) laser weapons. At present, in countries with developed military, most of the weapons and equipment have used infrared systems. So far, the application of infrared technology ha...

Claims

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Application Information

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IPC IPC(8): C30B29/30C30B15/00C30B33/04H01S3/16
CPCC30B29/30C30B15/00C30B33/04H01S3/1671H01S3/1611
Inventor 孙德辉陈玉客王东周王孚雷刘齐鲁桑元华刘宏
Owner UNIV OF JINAN
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