在1.9微米附近工作的掺Tm³⁺块状TZN和TZNG碲酸盐玻璃的光谱及激光性能

Spectroscopic and lasing performance of Tm3+-doped bulk TZN and TZNG tellurite glasses operating around 1.9 microm.

作者信息

Fusari F, Lagatsky A A, Richards B, Jha A, Sibbett W, Brown C T A

机构信息

Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St Andrews, St Andrews, Scotland, UK.

出版信息

Opt Express. 2008 Nov 10;16(23):19146-51. doi: 10.1364/oe.16.019146.

DOI:10.1364/oe.16.019146

PMID:19582007

Abstract

We report spectroscopic and bulk laser performance characteristics for Tm(3+)-doped tellurite glasses when used as gain media operating around 1.9 microm. Two glass hosts studied are TZN and TZNG and their performances have been compared. In each case, well-characterized cw laser performance was obtained and this has been related to detailed spectroscopic measurements of the important lasing parameters of the laser transitions around 1900 nm when pumped at 793 nm. The maximum output power achieved was 124 mW from the TZNG sample with an associated slope efficiency of 28 % with a tuning range of 135 nm. Efficiency and loss analyses yielded a calculated maximum attainable efficiency of 48 % in Tm(3+):TZN compared to 28 % for the TZNG host.

摘要

我们报告了掺铥（Tm(3+)）碲酸盐玻璃用作增益介质在1.9微米附近工作时的光谱和整体激光性能特征。研究的两种玻璃基质是TZN和TZNG，并对它们的性能进行了比较。在每种情况下，都获得了表征良好的连续波激光性能，这与在793纳米泵浦时对1900纳米附近激光跃迁的重要激光参数进行的详细光谱测量有关。TZNG样品实现的最大输出功率为124毫瓦，相关斜率效率为28%，调谐范围为135纳米。效率和损耗分析得出，Tm(3+):TZN的计算最大可达到效率为48%，而TZNG基质为28%。