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Aluminophosphate glass composition

A glass composition, aluminum phosphate technology, applied in the direction of active medium materials, lasers, laser parts, etc., to achieve favorable laser performance and thermodynamic performance

Active Publication Date: 2012-07-04
SCHOTT AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

On the other hand, while APG-2 contains a large amount of MgO, APG-1 contains a large amount of alkali metal

Method used

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  • Aluminophosphate glass composition
  • Aluminophosphate glass composition
  • Aluminophosphate glass composition

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Embodiment

[0132] All glass examples were fabricated using laser grade components and melted with stirring in a dry oxygen atmosphere using a Pt stir bar to achieve good homogeneity.

[0133] Tables 1A and 1B list glass composition examples 1-15 according to the present invention, and comparative examples A-F (excluding SiO 2 or B 2 o 3 ). In Table 1A, Glass Examples 1-8 and Comparative Examples A-C contain significant amounts of Li 2 O. In Table IB, Glass Examples 9-15 and Comparative Examples D-F contain significant amounts of MgO.

[0134] To determine the emission spectrum, the glasses were cast into molds and properly annealed to relieve stress. Neodymium-doped glass was prepared as bulk cuvette samples, typically with sample dimensions of at least nominally 10 mm x 10 mm x 40 mm. Each cuvette sample of neodymium-doped glass is used to measure the emission spectrum, and the effective emission bandwidth (Δλ 有效 ):

[0135]

[0136] Wherein for neodymium, the integral area of ...

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Abstract

The invention relates to aluminophosphate-based glasses suitable for use as a solid laser medium, which further contains SiO 2 and B 2 O 3 . The laser glasses possess desirable figure of merit values for FOM TM and FOM laser , as described herein.

Description

technical field [0001] The present invention relates to aluminum phosphate-based glasses, especially aluminum phosphate-based glasses suitable for use as solid-state laser media. In particular, the present invention relates to improving the physical and laser properties of alumina-containing phosphate-based glass compositions, eg, by adding certain amounts of silica and / or borate. Background technique [0002] Laser glasses are manufactured by doping the host glass system with lasing rare earth elements such as neodymium and ytterbium. The lasing ability of these rare earth doped laser glasses results from light amplification achieved by stimulated emission of excited rare earth element ions within the glass. [0003] Phosphate laser glasses are well known as host matrices for high average power and peak energy laser systems. For example, US 4,661,284 (Cook et al.) discloses a neodymium-doped phosphate laser glass containing silica and / or boron which is said to have a rela...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/17
CPCC03C3/068H01S3/175C03C3/062C03C4/0071C03C3/19C03C3/17
Inventor 李洪卡斯滕·魏因霍尔德伊丽莎白·蔡斯
Owner SCHOTT AG