摘要
通过实验研究了在均匀周期布拉格光纤光栅制作过程中，不同曝光条件对光纤光栅反射特性和透射特性的影响。研究结果表明，光纤光栅的反射率与曝光脉冲能流密度和曝光时间成非线性关系，同时曝光条件不同会导致短波损耗峰值变化、中心波长偏移以及光栅带宽变化。
The effects on the reflection and the transmission spectral characteristics of gratings under different exposure conditions during the fabrication of uniform Bragg fiber gratings are studied. The results show that the reflectivity of fiber gratings is nonlinear function of both the exposure energy density and exposure time.Different exposure conditions can cause the change of peak value of the shorter wavelength loss and the change of bandwidth and shift of the center wavelength.
出处
《长春邮电学院学报》
1999年第2期1-5,共5页
Journal of Changchun Post and Telecommunication Institute
基金
信息产业部重点科技发展计划
关键词
光纤
光栅
反射率
能流密度
曝光时间
Optical fibers
Grating
Reflectivity
Energy density
Exposure time
