2 mu m luminous rare earth ion doped germanate laser glass and preparation thereof

A technology of laser glass and germanate, which is applied in the field of germanate glass, can solve the problems of lack of pump sources and achieve excellent luminous properties

Inactive Publication Date: 2009-07-22
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology

Ho 3+ The main problem with doped fiber lasers is the lack of an effective pump source

Method used

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  • 2 mu m luminous rare earth ion doped germanate laser glass and preparation thereof
  • 2 mu m luminous rare earth ion doped germanate laser glass and preparation thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] Table 1 shows the glass formulations and some test results of 10 examples of the present invention.

[0026] Table 1: Glass formulations of 10 specific examples

[0027] Component (mol%) 1# 2# 3# 4# 5# 6# 7# 8# 9# 10# GeO 2 65 70 65 70 65 65 65 65 65 65 BaF 2 20 15 20 15 20 20 20 20 20 20 Ga 2 o 3 2 2 2 6 6 13 9 6 6 4 La 2 o 3 5 5 3 6 LaF 3 5 5 5 5 Yb 2 o 3 6 6 3 4 3 3 wxya 3 6 T m 2 o 3 1 1 2 1 TmF 3 1 2 4 1 4 Ho 2 o 3 1 1 1 HoF 3 1 1 1 1 1 Pump wavelength(nm) 980 980 980 980 980 808 808 980 980 808 Luminescence peak wavelength

(μm) ～2 ～2 ～2 ～2 ～2 ～2 ～1.8 ～1.8 ～2 ～2 light intensity high high high middle middle Difference high Difference Difference high

[0028...

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PUM

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Abstract

The invention discloses 2-micron luminous rare-earth ion-doped germanate laser glass and a preparation method thereof. The mol percentage composition of the glass is as follows: 60 to 65 percent of GeO2, 15 to 20 percent of BaF2, 2 to 13 percent of Ga2O3, and 2 to 13 percent of Re2O3ReF3; wherein, Re is the rare-earth elements of La, Yb, Tm and Ho. The rare-earth ion doping mode of the glass is: single doping of Tm, double doping of Yb and Tm, double doping of Yb and Ho, double doping of Tm and Ho, or three doping of Yb, Tm and Ho. Rare-earth ions are introduced in the form of rare earth oxides or rare earth fluorides and can all obtain the glass with stability and excellent luminous performance. Test result shows that the germanate glass in the invention has higher transmission rate and wider transmission range. A fluorescence spectrum test shows that the germanate laser glass of the invention can obtain excellent fluorescence emitting approaching to 2-micron. The laser glass of the invention is also suitable for preparing 2-micron optical fiber perform cores.

Description

technical field [0001] The invention relates to germanate glass, in particular to a germanate laser glass doped with 2 μm luminescent rare earth ions and a preparation method thereof. Background technique [0002] For the mid-infrared laser with a wavelength of 2 μm, it is very important in the fields of medical surgery, optical communication, gas monitoring, environmental pollution detection and analysis, and human eye safety lidar, as well as for the pumping source of new mid-infrared band lasers. Value. T m 3+ and Ho 3+ It has been extensively studied as an active ion for lasers in various substrates in the 2 μm region. Doped Tm 3+ and Ho 3+ Ionic fiber lasers are strong candidates as compact and efficient all-solid-state laser sources. [0003] With the adoption of high-power semiconductor lasers and cladding pumping methods, the performance of thulium-doped fiber lasers has also been greatly improved (see prior art: Jianfeng Wu, Zhidong Yao, Jie Zong et al.Highlye...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/253C03B5/235
Inventor 张军杰于春雷汪国年王孟衣丽霞徐茸茸胡丽丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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