光学学报, 2015, 35 (4): 0422004, 网络出版: 2015-02-06   

利用非相干光源基于多模光纤获得空心光束

Hollow Beam Generated by Incoherent Light Source and Multimode Fiber
作者单位
华侨大学信息科学与工程学院,福建省光传输与变换重点实验室, 福建 厦门 361021
摘要
提出利用非相干单色发光二极管(LED)光源和多模光纤产生空心光束。证实了将LED 光源以一定角度倾斜耦合进大芯径多模光纤可获得光斑均匀的空心光束。分析了光束在多模光纤中的传输路径和产生空心光束的机理,并用Zemax软件建立仿真模型进行模拟。搭建利用LED 和多模光纤产生空心光束的实验系统并且与激光作为光源产生的空心光束进行分析比较,结果表明利用LED 光源获得的空心光束均匀性更好。
Abstract
A method of generating hollow beam by incoherent monochromatic light emitting diode (LED) light source and multimode fiber is proposed. It is demonstrated that the hollow beam can be obtained by coupling a LED light source into a multimode fiber with a suitable incident angle. The transmission path of beam in multimode fiber and the mechanism of producing hollow beam are analyzed. The simulation model is set up by software Zemax. The experimental system generating hollow beam by LED and multimode fiber is compared with a laser source. The results show that the uniformity of hollow beam obtained by using LED light source is better.
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李攀, 朱清智, 吴逢铁. 利用非相干光源基于多模光纤获得空心光束[J]. 光学学报, 2015, 35(4): 0422004. Li Pan, Zhu Qingzhi, Wu Fengtie. Hollow Beam Generated by Incoherent Light Source and Multimode Fiber[J]. Acta Optica Sinica, 2015, 35(4): 0422004.

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