The LD-Cladding-Pumped High Power Tm3+-doped Silica Fibre Amplifying at Approximately 1.99/μm

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2008,（4）
• 页码范围: 1291-1292
• 页数: 2页
• 语种: 英文

摘要

A laser diode (LD) cladding-pumped cw Tma+-doped silica fibre amplifier is reported that provides up to 3 W output with the slope efficiency nearly 30%. The gain fibre is 27.5/400μm D-shaped Tm3+-doped silica doublecladding fibre, and the input signal sources is an LD-pumped Tm3+ : YAP lasing at 1.99μm. The measured amplified spectrum only stretches a little relative to the input signal spectrum. This is the first report to the authors' knowledge of general experimental investigation of cladding-pumped Tm3+-doped fibre amplifier of high power cw at 1.99μm.