激光与光电子学进展, 2013, 50 (9): 090603, 网络出版: 2013-08-21
激光经D形多模光纤输出的光场特性实验研究
Experimental Study of the Characteristics of the Light Field of the Laser Output Through the D-Shaped Multimode Fiber
光通信 D形光纤 远场分布 部分相干光 空间相干度 optical communications D-shaped optical fiber far-field distribution partially coherent light spatial coherence
摘要
强度调制大气激光通信要求远场强度分布均匀平坦，而光强均匀度将会由于其空间相干性的退化而有所提高。实验研究了一种D形多模光纤的输出光场强度分布特性，比较了激光经圆柱形多模光纤和不经过光纤的输出光场强度分布，证明了采用D形多模光纤作为模式混合器，输出的光束具有相干度低和均匀性好的特性。
Abstract
Intensity modulated atmospheric laser communication requires the uniform and flat far-field intensity distribution and intensity uniformity will be improved due to the degradation of its spatial coherence. An experimental study of a D-shaped multi-mode fiber output optical field intensity distribution characteristics is presented, compared with the output optical field intensity distribution from the laser through the cylindrical multi-mode optical fiber and not via an optical fiber. Experimental results show that using a D-shaped multi-mode fiber as the mode mixer, the output beam has a low degree of coherence and good uniformity.
吴丽双. 激光经D形多模光纤输出的光场特性实验研究[J]. 激光与光电子学进展, 2013, 50(9): 090603. Wu Lishuang. Experimental Study of the Characteristics of the Light Field of the Laser Output Through the D-Shaped Multimode Fiber[J]. Laser & Optoelectronics Progress, 2013, 50(9): 090603.
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