Realization of an efficient coherent combination via Michelson cavity

• 来源期刊: 中国物理（英文版）
• 关键词: self-organization coherent combining intracavity coherent combining Michelson erbium-doped fibre laser reflectivity of an FBG
• 年，卷（期）: 2007,（10）
• 页码范围: 2993-2997
• 页数: 5页
• 语种: 英文

摘要

An intracavity coherent coupling Michelson erbium-doped fibre (EDF) laser (MCEDFL) is proposed and demonstrated. By using this laser system, we find a means to obtain a maximum power output at the same pumping power level. From the experiment based on fibre Bragg gratings (FBGs) with different reflectivities from 6% to 100%, we find that the reflectivity of the FBG plays a vital role in improving the performance of the MCEDFL. At the same time, the MCEDFL with a polarizer can be coherently combined effectively. This type of system, in principle, is compatible with other more powerful pumping methods, such as cladding pumping, and brings some novel perspectives to the realization of high power lasers.