Spectral Characteristics and Laser Parameters of Solar Pumped Cr,Nd: YAG Transparent Ceramics

WANG Qing-qing; SHI Yun; FENG Ya-gang; XIE Teng-fei; LI Jiang

doi:10.3788/fgxb20194011.1365

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Spectral Characteristics and Laser Parameters of Solar Pumped Cr,Nd: YAG Transparent Ceramics

Synthesis and Properties of Materials | 更新时间：2020-08-12

- Spectral Characteristics and Laser Parameters of Solar Pumped Cr,Nd: YAG Transparent Ceramics
- Chinese Journal of Luminescence Vol. 40, Issue 11, Pages: 1365-1372(2019)
- 作者机构：
  
  1. 蚌埠学院理学院, 硅基新材料工程技术研究中心, 安徽蚌埠 233030
  2. 中国科学院上海硅酸盐研究所透明光功能无机材料重点实验室上海,201899
  3. 中国科学院大学材料与光电研究中心北京,100049
- 作者简介：
- 基金信息：
  
  Supported by Anhui Provincial Department of Education Domestic Visiting Project(gxgnfx2018059);Natural Science Project of Bengbu University(2018ZR06zd);Quality Engineering Project of Bengbu University(2017JYXML19);National Natural Science Foundation of China(61575212);Chinese Academy of Sciences Frontier Foundation Key Project(QYZDB-SSW-JSC022)
- DOI：10.3788/fgxb20194011.1365
  CLC： TQ174
- Received：17 June 2019，
  
  Revised：25 July 2019，
  
  Published：05 November 2019
- 稿件说明：
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王晴晴, 石云, 冯亚刚等. 太阳光泵浦Cr,Nd:YAG透明陶瓷的光谱特性和激光参数[J]. 发光学报, 2019,40(11): 1365-1372

WANG Qing-qing, SHI Yun, FENG Ya-gang etc. Spectral Characteristics and Laser Parameters of Solar Pumped Cr,Nd: YAG Transparent Ceramics[J]. Chinese Journal of Luminescence, 2019,40(11): 1365-1372
王晴晴, 石云, 冯亚刚等. 太阳光泵浦Cr,Nd:YAG透明陶瓷的光谱特性和激光参数[J]. 发光学报, 2019,40(11): 1365-1372 DOI： 10.3788/fgxb20194011.1365.

WANG Qing-qing, SHI Yun, FENG Ya-gang etc. Spectral Characteristics and Laser Parameters of Solar Pumped Cr,Nd: YAG Transparent Ceramics[J]. Chinese Journal of Luminescence, 2019,40(11): 1365-1372 DOI： 10.3788/fgxb20194011.1365.

摘要

太阳光泵浦激光器可将太阳光直接转化为激光，在空间太阳能发电站、深海等领域有着极大的应用前景，而Cr，Nd:YAG是一种很有潜力的太阳光泵浦激光介质。本文以高纯Y

、-Al

、Nd

、Cr

粉体作为原料，采用固相反应法结合真空烧结技术制备了高光学质量的0.1% Cr，1.0% Nd:YAG透明陶瓷，并研究了其光谱特性和激光参数。根据太阳辐照光谱和Cr，Nd:YAG陶瓷的吸收和发射光谱，计算了不同条件下Cr，Nd:YAG陶瓷激光器的泵浦率、阈值太阳聚光比、有效发射截面、饱和光强和阈值输入功率等激光参数。研究发现0.1% Cr，1.0% Nd:YAG陶瓷（厚度为1.0 mm）在370 nm和1 064 nm处的直线透过率分别为81.5%和84.0%，晶胞密度为4.57 g/cm

，光学散射损耗为1.4% cm

-1

，吸收带内的太阳辐照度约是太阳常数的42%。上述研究结果表明Cr，Nd:YAG陶瓷是理想的太阳光泵浦激光介质，可通过优化聚光系统、泵浦方式和陶瓷尺寸获得高功率激光输出。

Abstract

Solar pump laser can directly convert sunlight into laser

which has great application prospect in space solar power station

deep sea and other fields. Cr

Nd:YAG is a kind of solar pump laser medium with great potential. 0.1%Cr

1.0%Nd:YAG transparent ceramics with high optical quality were fabricated by solid-state reactive sintering using high-purity Y

-Al

and Cr

powders as raw materials. The spectral characteristics and laser parameters of 0.1%Cr

1.0%Nd:YAG ceramics were studied in this paper. According to the solar irradiance spectrum

the absorption and fluorescence spectra of Cr

Nd:YAG ceramics

the laser parameters of Cr

Nd:YAG ceramic laser

such as pump rate

threshold solar concentration ratio

effective emission cross section

saturation intensity

and the threshold input power were calculated under different conditions. The study found that the in-line transmittance of 0.1%Cr

1.0%Nd:YAG ceramics with the thickness of 1.0 mm reaches 81.5% at 370 nm and 84.0% at 1 064 nm

the cell density is 4.57 g/cm

and the optical scattering loss is about 1.4% cm

-1

the solar irradiance in the absorption band is about 42% of the solar constant. The results show that Cr

Nd:YAG ceramics are ideal laser media for solar pumping. High power laser output can be obtained by optimizing the focusing system

pumping mode and ceramic size.

关键词

Keywords

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