中国物理B ›› 2007, Vol. 16 ›› Issue (10): 2993-2997.doi: 10.1088/1009-1963/16/10/029

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Realization of an efficient coherent combination via Michelson cavity

贾秀杰, 刘丰年, 付圣贵, 刘艳格, 袁树忠, 董孝义   

  1. Institute of Modern Optics, Nankai University, Tianjin { 300071, China
  • 收稿日期:2007-01-27 修回日期:2007-03-15 出版日期:2007-10-08 发布日期:2007-10-08
  • 基金资助:
    Project supported by the Tianjin Natural Science Foundation (Grant No 06YFJZJC00300), and the National Science Foundation for Postdoctoral Scientists of China (Grant No 20060390666).

Realization of an efficient coherent combination via Michelson cavity

Jia Xiu-Jie(贾秀杰), Liu Feng-Nian(刘丰年), Fu Sheng-Gui(付圣贵), Liu Yan-Ge(刘艳格), Yuan Shu-Zhong(袁树忠), and Dong Xiao-Yi(董孝义)   

  1. Institute of Modern Optics, Nankai University, Tianjin 300071, China
  • Received:2007-01-27 Revised:2007-03-15 Online:2007-10-08 Published:2007-10-08
  • Supported by:
    Project supported by the Tianjin Natural Science Foundation (Grant No 06YFJZJC00300), and the National Science Foundation for Postdoctoral Scientists of China (Grant No 20060390666).

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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.

关键词: self-organization coherent combining, intracavity coherent combining, Michelson erbium-doped fibre laser, reflectivity of an FBG

Abstract: 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.

Key words: self-organization coherent combining, intracavity coherent combining, Michelson erbium-doped fibre laser, reflectivity of an FBG

中图分类号:  (Fiber lasers)

  • 42.55.Wd
42.60.Da (Resonators, cavities, amplifiers, arrays, and rings) 42.60.Jf (Beam characteristics: profile, intensity, and power; spatial pattern formation) 42.79.Ci (Filters, zone plates, and polarizers) 42.79.Dj (Gratings) 42.81.Wg (Other fiber-optical devices)