Side detection of strong radiation-mode out-coupling from blazed FBGs in single-mode and multimode fibers
Side detection of strong radiation-mode out-coupling from blazed FBGs in single-mode and multimode fibers
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DOI：
10.1109/lpt.2003.813568
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发表时间：
2003-06
影响因子：
2.6
通讯作者：
K. Zhou;A. G. Simpson;L. Zhang;I. Bennion
中科院分区：
文献类型：
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作者：
K. Zhou;A. G. Simpson;L. Zhang;I. Bennion
报道了单模光纤和多模光纤中闪耀光纤布拉格光栅辐射模输出耦合的有效边检测。测量了BFBG的远场辐射功率分布，获得了较高的空间光谱分辨率（0.17 mm/nm）。我们还比较研究了采用相位掩模和全息刻写技术制作的两种光纤类型的BFBG的传输损耗特性。我们的研究结果清楚地表明，从BFBG的辐射出耦合是显着更强，更严格的限制在MMF比在SMF的光谱。
We report on the effective side detection of radiation-mode out-coupling from blazed fiber Bragg gratings (BFBGs) fabricated in single-mode fiber (SMF) and multimode fiber (MMF). The far-field radiation power distribution from BFBGs have been measured achieving a high spatial-spectral resolution (0.17 mm/nm). We have also investigated comparatively the transmission-loss characteristics of BFBGs in both fiber types, fabricated using phase-mask and holographic inscription techniques. Our results reveal clearly that the radiation out-coupling from BFBGs is significantly stronger and spectrally more confined in MMF than in SMF.