Dy<3+>-doped phosphate glass for outputting yellow laser, optical fiber and preparation method of Dy<3+>-doped phosphate glass

Abstract

The invention discloses Dy<3+>-doped phosphate glass for outputting yellow laser, an optical fiber and a preparation method of the Dy<3+>-doped phosphate glass; the Dy<3+>-doped phosphate glass comprises the components in molar percentage: 60%-70% of P2O5, 10%-15% of K2O, 10%-15% of BaO, 2%-5% of Al2O3, 3%-5.5% of La2O3 and 0.5%-3% of Dy2O3, wherein the total molar percentage is 100%. The advantages of the phosphate glass are utilized, a large amount of K<+> is doped as a low-field-intensity modifier to isolate Dy<3+>, La<3+> is co-doped to improve the dispersity of Dy<3+> and improve the yellow light gain performance, and the output power and efficiency are greatly improved. And the phosphate glass optical fiber is high in damage threshold, simple in preparation process and good in toughness, an efficient, stable and simple-structure Dy<3+>-doped yellow light optical fiber laser can be manufactured, and high-power, efficient and stable optical fiber yellow light laser direct output is achieved.

Description

technical field [0001] The invention belongs to the field of optical fiber technology, and in particular relates to a Dy 3+ Doped phosphate glass, optical fiber and method of making the same. Background technique [0002] The yellow laser with a wavelength range of about 550-620nm has important and extensive applications in astronomy, physics, biomedicine and military fields. For example, the yellow laser with 589nm can cause strong resonance fluorescence of sodium atoms in the atmospheric ionosphere Scattering, the adaptive optics technology used in astronomical telescopes can correct the imaging blur caused by atmospheric turbulence; yellow lasers with 561nm, 580nm and 592nm and similar wavelengths can effectively excite various yellow orange and red fluorescent dyes and proteins. It has become a commonly used device on flow cytometers; 556nm and 578nm yellow lasers can be used for secondary cooling, spin polarization and clock transition of ytterbium atomic optical latti...

AI Technical Summary

Problems solved by technology

[0007] For the current Dy 3+ Although doped yellow-light fiber lasers can achieve direct output of yellow-light lasers, the output power and efficiency are generally low due to poor yellow-light gain performance; and because they are limited to fluoride glass fibers, there are low damage thresholds, The preparation process is complex and the toughness is poor, which seriously affects the practicability. The purpose of the present invention is to provide a high-gain Dy 3+ Doped phosphate glass fiber as Dy 3+ The gain fiber of the doped fiber yellow laser, in which the Dy 3+ Doped yellow fiber laser has the advantages of direct yellow laser output, simple structure, and high integration, while taking advantage of the advantages of high quenching threshold, high phonon energy, and high asymmetry of phosphate glass, plus doped Into a large amount of K + Isolation of Dy as a low-field modifier 3+ , co-doped Tb 3+ 、Eu 3+ Further quenching lower level, co-doped La 3+ Improve Dy 3+ Measures such as decentralization improve Dy as much as possible 3+ The yellow light gain performance of doped gain fiber is expected to greatly improve the Dy 3+ Output Power and Efficiency of Doped Yellow Fiber Laser

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