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Phosphate laser neodymium glass and preparation method thereof

A neodymium glass and phosphate technology, which is applied in the field of phosphate laser neodymium glass and its preparation, can solve problems such as beam quality deterioration, achieve the effect of reducing thermal effects and broad application prospects

Active Publication Date: 2022-06-17
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

At present, the thermo-optic coefficient of commonly used phosphate laser neodymium glass is mostly positive. For example, the thermo-optic coefficient of N31 laser neodymium glass is 14×10 -7 / °C, resulting in deterioration of the beam quality of the output beam of the laser system

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  • Phosphate laser neodymium glass and preparation method thereof
  • Phosphate laser neodymium glass and preparation method thereof
  • Phosphate laser neodymium glass and preparation method thereof

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Embodiment Construction

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0023] Without considering the thermal stress, the optical path difference change caused by the thermal effect of the laser glass under the action of high-energy laser is caused by the change in the refractive index and the size of the glass, which can be characterized by the thermo-optic coefficient W:

[0024]

[0025] Where s is the optical path of the laser passing through the glass, T is the temperature, α is the thermal expansion coefficient, n is the refractive index of the glass, and dn / dT is the temperature c...

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Abstract

The invention provides phosphate laser neodymium glass and a preparation method thereof, and belongs to the technical field of glass, and the phosphate laser neodymium glass comprises the following components by mole percent: 50-65 mol% of P2O5; 3 to 10 mol% of Al2O3; r is one or more of Li, Na and K, and the content of K2O is not less than 15 mol%; m is one or more of Mg and Ba, and the content of BaO is not less than 6 mol%; the Re is one of Nd, Y and La, and the content of the Nd2O3 is not less than 0.05 mol%; the content of Nb2O5 is 0.2 to 1.5 mol percent; and the content of Sb2O3 is 30-1mol%. The thermo-optical coefficient of the prepared glass is not more than-5 * 10 <-7 > / DEG C, the stimulated emission cross section is not less than 3.8 * 10 <-20 > cm < 2 >, and the glass has a wide application prospect.

Description

technical field [0001] The invention relates to the technical field of glass, in particular to a phosphate laser neodymium glass and a preparation method thereof. Background technique [0002] Phosphate glass is widely used in large-scale laser devices due to its moderate phonon energy, high solubility for rare earth ions, excellent spectral properties of rare earth ions in phosphate matrix glass, high solubility for platinum ions, and low nonlinear coefficient. glass medium. Neodymium ions have many absorption peaks in the visible and near-infrared regions, and should be pumped with a broad-spectrum light source such as a xenon lamp. Neodymium ions are four-level systems and are often used as active ions for laser gain media. Phosphate Laser Neodymium glass is a kind of phosphate glass that uses neodymium ions as active ions, and is widely used in various laser systems. [0003] Due to the existence of quantum depletion, excited state absorption, concentration quenching a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/17C03C4/12C03B5/16C03B19/02
CPCC03C3/17C03C4/0071C03B5/16C03B19/02Y02P40/57
Inventor 王欣翁泽安胡丽丽陈树彬唐景平
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI