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紫外均匀曝光对长周期光纤光栅耦合特性的影响
Effect of UV Uniform Exposure on Coupling Characteristics of Long-Period Fibre Gratings
【摘要】 写于载氢光纤上的长周期光纤光栅经过高温退火后 ,对其进行紫外均匀曝光能够有效改变其耦合特性。随着曝光量的增加 ,其共振波长向长波方向移动 ,共振峰强度先增大继而减小。并对此给出了理论解释。
【Abstract】 UV uniform exposure can effectively vary the coupling characteristics of the annealed long period gratings (LPGs) in hydrogen loaded fiber. With the increase of UV exposure, the resonance wavelength shifts toward longer wavelength and resonance peak intensity increases first and then decreases. A theoretical explanation for this phenomenon has been given.
【关键词】 长周期光纤光栅;
耦合特性;
紫外均匀曝光;
【Key words】 long period fibre gratings; coupling characteristics; UV uniform exposure;
【Key words】 long period fibre gratings; coupling characteristics; UV uniform exposure;
【基金】 香港理工大学资助
- 【文献出处】 光学学报 ,Acta Optica Sinica , 编辑部邮箱 ,2001年02期
- 【分类号】TN253
- 【被引频次】5
- 【下载频次】129