| 非相干光纤激光组束中光栅参数的确定 |
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| 引用本文： | 侯睿,赵尚弘,胥杰,方绍强,石磊,李勇军.非相干光纤激光组束中光栅参数的确定[J].光学技术,2007,33(Z1). |
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| 作者姓名： | 侯睿 赵尚弘 胥杰 方绍强 石磊 李勇军 |
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| 摘 要： | 光栅衍射效率是非相干光纤激光组束系统的关键,理论分析和数值仿真表明光栅衍射效率随着光栅频率和光栅厚度的减小而增大。全面综合考虑光栅频率应该选取在200mm-1和400mm-1之间,光栅厚度在1mm到2mm之间。同时提出了一种不等间隔方法提高系统总体衍射效率,该方法较等间隔条件下衍射效率提高了0.1651。
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| 关 键 词： | 非相干光纤激光组束 衍射效率 光栅频率 光栅厚度 |
The determination of grating parameters in incoherent fiber laser beam combination |
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| HOU Rui,ZHAO Shang-hong,XU Jie,FANG Shao-qiang,SHI Lei,LI Yong-jun.The determination of grating parameters in incoherent fiber laser beam combination[J].Optical Technique,2007,33(Z1). |
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| Authors: | HOU Rui ZHAO Shang-hong XU Jie FANG Shao-qiang SHI Lei LI Yong-jun |
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| Abstract: | The diffraction efficiency plays an important role in incoherent fiber laser beam combination.Through theoretic analysis and numerical simulations,it has been proved that the diffraction efficiency increases with the decrease of grating frequency and thickness.With comprehensive consideration the grating frequency should be chosen between 200mm-1 and 400mm-1,the grating thickness between 1mm and 2mm.Also an unequal interval wavelength selection method has been proposed to improve system diffraction efficiency;the system diffraction efficiency had been increased by 0.1651. |
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| Keywords: | incoherent fiber laser beam combination diffraction efficiency grating frequency grating thickness |
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