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首页> 外文会议>Conference on Reliability of Optical Fiber Components, Devices, Systems, and Networks Oct 28-29, 2002 Brugge, Belgium >Impact of silica glass structure on transmission properties of Ge-doped single-mode fibers
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Impact of silica glass structure on transmission properties of Ge-doped single-mode fibers

机译：石英玻璃结构对掺Ge单模光纤传输性能的影响

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The impact of silica glass structure on the transmission properties of Ge-doped single-mode optical fibers was studied. Test fibers with significantly different fictive temperatures (Tf) and residual stresses were drawn by varying cooling rate. Tensile or compressive residual stresses were achieved in core of the fibers. The results show that: 1. Both residual stress and Tf have an impact to the transmission properties, in particular, the stress in core. 2. A greater complexity was found in the relationship between transmission properties and glass structure than has been shown earlier. E.g. Rayleigh scattering was found to decrease and loss imperfection factor to increase with increasing Tf within one of the fiber series. Thus Tf can not alone be used to characterize the fiber glass structure. 3. Rayleigh scattering is dependent on both Tf and residual stress, in particular on core stress and probably on the structure of core glass. A relatively low Rayleigh scattering was found in fibers with Tf as high as 1600℃. 4. Zero dispersion- and cut-off wavelengths are modified by residual stress.
机译：研究了石英玻璃结构对掺Ge单模光纤传输特性的影响。通过改变冷却速率来拉制具有显着不同的假想温度（Tf）和残余应力的测试纤维。在纤维芯中获得了拉伸或压缩残余应力。结果表明：1.残余应力和Tf都对传输特性产生影响，特别是对核心应力产生影响。 2.在传输特性和玻璃结构之间的关系中发现的复杂性要比先前显示的复杂。例如。发现在一系列光纤之一中，随着Tf的增加，瑞利散射会降低，损耗不完善因数会增加。因此，Tf不能单独用来表征玻璃纤维结构。 3.瑞利散射取决于Tf和残余应力，特别是取决于核心应力，并且可能取决于核心玻璃的结构。在Tf高达1600℃的纤维中发现相对较低的瑞利散射。 4.零色散和截止波长会因残余应力而改变。

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