Low-threshold and continuously tunable Yb:Gd2SiO5 laser

Yb : Gd 2 Si O 5 (Yb:GSO) exhibits a large fundamental manifold splitting. Its long-wavelength emission band around 1088nm, which has the largest emission cross section, encounters the lowest reabsorption losses caused by thermal population of the terminal laser level. As a result, low-threshold and...

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Bibliographic Details
Published in:Applied physics letters 2006-09, Vol.89 (10)
Main Authors: Li, Wenxue, Hao, Qiang, Zhai, Hui, Zeng, Heping, Lu, Wei, Zhao, Guangjun, Yan, Chengfeng, Su, Liangbi, Xu, Jun
Format: Article
Language:English
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Summary:Yb : Gd 2 Si O 5 (Yb:GSO) exhibits a large fundamental manifold splitting. Its long-wavelength emission band around 1088nm, which has the largest emission cross section, encounters the lowest reabsorption losses caused by thermal population of the terminal laser level. As a result, low-threshold and tunable continuous-wave Yb:GSO lasers were demonstrated. A slope efficiency up to 86% and a pumping threshold as low as 127mW were achieved for a continuous-wave Yb:GSO laser at 1092.5nm under the pump of a high-brightness laser diode. A continuous tunability between 1000 and 1120nm was realized with an SF14 prism as the intracavity tuning element.
ISSN:0003-6951
1077-3118
DOI:10.1063/1.2349281