Table of Contents
Laser Chemistry
Volume 2008, Article ID 656490, 6 pages
http://dx.doi.org/10.1155/2008/656490
Research Article

Physical and Spectroscopic Properties of Yb3+-Doped Fluorophosphate Laser Glasses

1Glass and Ceramic Key Laboratory, Shandong Institute of Light Industry, Jinan 250353, China
2School of Materials Science and Engineering, Central South University, Changsha 410083, China

Received 24 April 2008; Accepted 4 August 2008

Academic Editor: Saulius Juodkazis

Copyright © 2008 Shujiang Liu and Anxian Lu. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The physical properties including refractive index, Abbe number, nonlinear refractive index, microhardness and thermal expansion coefficient, and spectroscopic properties of Yb3+-doped fluorophosphate laser glasses were investigated. The results show that due to the addition of fluoride, mechanical and thermal properties are promoted, emission cross-section σemi is also greatly enhanced. The largest gain coefficient σemi·τm (0.824 pm2·ms) can be obtained with the minimum pump intensity Imin (1.112 kw/cm2). This kind of Yb3+-doped fluorophosphate glass is an excellent candidate material for Yb3+-doped host for high-power generation.