Spectral Parameter Calculation of Ho3+, Tm3+ Co-doped KYb(WO4)2 Laser Crystal

BI Lin; DI Xiao-qiang; ZHAO Jian-ping; LI Chun; LIU Jing-he

doi:10.3788/fgxb20183905.0615

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Spectral Parameter Calculation of Ho³⁺, Tm³⁺ Co-doped KYb(WO₄)₂ Laser Crystal

更新时间：2020-08-12

- Spectral Parameter Calculation of Ho³⁺, Tm³⁺ Co-doped KYb(WO₄)₂ Laser Crystal
- Chinese Journal of Luminescence Vol. 39, Issue 5, Pages: 615-620(2018)
- 作者机构：
  
  1. 长春理工大学材料科学与工程学院, 吉林长春 130022
  2. 长春理工大学计算机科学技术学院,吉林长春,130022
- 作者简介：
- 基金信息：
  
  Supported by Jilin Provincial S&T Development Plan Project of China (201604140
- DOI：10.3788/fgxb20183905.0615
  CLC： O482.31
- Received：05 September 2017，
  
  Revised：24 October 2017，
  
  Published Online：11 September 2017，
  
  Published：05 May 2018
- 稿件说明：
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毕琳, 底晓强, 赵建平等. 钬铥双掺钨酸镱钾激光晶体光谱参数计算[J]. 发光学报, 2018,39(5): 615-620

BI Lin, DI Xiao-qiang, ZHAO Jian-ping etc. Spectral Parameter Calculation of Ho3+, Tm3+ Co-doped KYb(WO4)2 Laser Crystal[J]. Chinese Journal of Luminescence, 2018,39(5): 615-620
毕琳, 底晓强, 赵建平等. 钬铥双掺钨酸镱钾激光晶体光谱参数计算[J]. 发光学报, 2018,39(5): 615-620 DOI： 10.3788/fgxb20183905.0615.

BI Lin, DI Xiao-qiang, ZHAO Jian-ping etc. Spectral Parameter Calculation of Ho3+, Tm3+ Co-doped KYb(WO4)2 Laser Crystal[J]. Chinese Journal of Luminescence, 2018,39(5): 615-620 DOI： 10.3788/fgxb20183905.0615.

摘要

采用顶部籽晶提拉法（TSSG）生长了钬铥双掺钨酸镱钾（KHo

0.04

0.06

0.9

（WO

）

）激光晶体。测试了该晶体的吸收及荧光光谱，计算了其光谱参数。实验结果表明：该晶体在890~1 000 nm范围吸收带较宽，半峰宽为90 nm，计算了主峰1 000 nm处吸收截面为16.9210

-20

；Tm

在1 690~1 812 nm范围存在较宽的吸收带，半峰宽为118 nm，易于实现YbHo、YbTm、TmHo的能量传递。根据Judd-Ofelt理论，计算了该晶体的光谱强度参数。根据Tm

、Ho

、Yb

离子能级图，讨论了产生1 750~2 200 nm荧光发射的3种能量传递方式。最后计算了主峰2 030 nm处受激发射截面为3.4710

-20

，表明该晶体可作为2 m波段优异的激光增益介质。

Abstract

KHo

0.04

0.06

0.9

(WO

)

laser crystal was grown by the top seeded solution growth (TSSG) method. The absorption and fluorescent spectra of the crystal were measured

and the spectral parameters were calculated

too. The experimental results show that there is a broader absorption band at the range of 890-1 000 nm with a full width at half maximum (FWHM) of 90 nm. The absorption cross section of main emission peak at 1 000 nm is 16.9210

-20

. Meanwhile

ions in the crystal have a wider absorption band at 1 690-1 812 nm with a FWHM of 118 nm. Therefore

the energy transfer of YbHo

YbTm

TmHo can be easily achieved. The spectral strength parameters of the crystal were calculated based on the Judd-Ofelt theory. According to the energy level diagram of Tm

and Yb

ions

three kinds of energy transfer modes at 1 750-2 200 nm emission were discussed. The stimulated emission cross section of main emission peak at 2 030 nm is 3.4710

-20

which indicates that the crystal can be used as an excellent laser gain medium at the range of 2 m.

关键词

Keywords

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