High-power and widely tunable Tm-doped fiber laser at 2 μm

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2012,（9）
• 页码范围: 55-57
• 页数: 3页
• 语种: 英文
• DOI: 10.3788/COL201210.091406

摘要

Efficient,high-power,and widely tunable Tm-doped fiber lasers cladding-pumped by diode lasers at 791 nm are demonstrated by use of an external cavity containing a diffraction grating.A maximum output power of 62 W is obtained at 2 004 nm for 140 W of launched pump power,corresponding to a slope efficiency of 48％ with respect to launched pump power.The operating wavelength is tunable over 200 nm (1 895 to 2 109 nm),with ＞52 W of output power over a tuning range of 140 nm (1 926 to 2070 nm).Prospects for further improvement in output power,lasing efficiency,and tuning range are considered.