Fabrication and Optical Properties of Highly Transparent Er:YAG Polycrystalline Ceramics for Eye‐Safe Solid‐State Lasers“. Issue 1 (17th January 2012)

• Record Type: Journal Article
• Authors: Qin, Xianpeng; Yang, Hao; Shen, Deyuan; Chen, Hao; Zhou, Guohong; Luo, Dewei; Zhang, Jian; Wang, Shiwei; Ma, Jan; Tang, Dingyuan
• Is Part Of: International journal of applied ceramic technology. Volume 10:Issue 1(2013:Jan./Feb.)
• Page Start: 123
• Page End: 128
• Publication Date: 2012-01-17
• Subjects: Ceramics -- Periodicals; Ceramics -- Technological innovations -- Periodicals; 620.1405
• DOI: 10.1111/j.1744-7402.2011.02732.x
• Languages: English
• ISSNs: 1546-542X

Abstract

<abstract abstract-type="main" id="ijac02732-abs-0001"> <title> <x xml:space="preserve">Abstract</x> </title> <p>Highly transparent 1 at.% Er:YAG ceramics was fabricated by a reactive sintering method under vacuum. The optical properties, the microstructure and the laser performance of the Er:YAG ceramics were investigated. The average grain size of the Er:YAG ceramics was 7~8 μm. The in‐line transmittances of the Er:YAG ceramics at the wavelength of 1800 and 400 nm were about 84.6% and 82.4%, respectively. The absorption coefficient of the Er:YAG ceramics was 1.29 cm⁻¹. The grain boundaries were very clean and no secondary phase was observed. When end‐pumped by an Er, Yb‐fiber laser at 1532 nm, a maximum output power of 13.8 W lasing at the wavelength of 1645 nm was obtained with a slope efficiency of 54.5%.</p> </abstract>