CAJ | 학술논문

设计并研制出一种与普通单模光纤高适配的低弯曲损耗光子晶体光纤.结构采用光纤预制棒制作工艺上易于实现的掺锗芯六孔结构.应用间接测量方法,对其模式、弯曲及色散特性进行了系统的评估.在波长1550 nm处研制光纤的模场面积为79.26μm2,色散为21.7 ps·km?1·nm?1,模场面积和色散特性与标准单模光纤具有高的适配性.在光纤弯曲半径为5 mm时,在波长1550 nm处的弯曲损耗为0.0365 dB/圈,小于G.657B的弯曲损耗0.5 dB/圈.研究成果为光纤到户用低弯曲损耗光纤的实用化奠定了良好的基础.
설계병연제출일충여보통단모광섬고괄배적저만곡손모광자정체광섬.결구채용광섬예제봉제작공예상역우실현적참타심륙공결구.응용간접측량방법,대기모식、만곡급색산특성진행료계통적평고.재파장1550 nm처연제광섬적모장면적위79.26μm2,색산위21.7 ps·km?1·nm?1,모장면적화색산특성여표준단모광섬구유고적괄배성.재광섬만곡반경위5 mm시,재파장1550 nm처적만곡손모위0.0365 dB/권,소우G.657B적만곡손모0.5 dB/권.연구성과위광섬도호용저만곡손모광섬적실용화전정료량호적기출.
@@@@A high-compatibility low-bending-loss photonic crystal fiber (PCF) with standard single mode fiber (SMF) is designed and man-ufactured successfully. From the point of the view of fiber fabrication and application, a feasible structure with a germanium-doped core surrounded by one layer of six air holes running along fiber axis is adopted in fiber design. The properties of the fabricated PCF such as modal property, bending characteristic and dispersion are systemically evaluated with indirect measurement method. Analysis results demonstrate that this fiber has a mode field area of 79.26 μm2 and dispersion of 21.7 ps·km?1·nm?1, which exhibits high com-patibility with SMF. The bending loss is 0.0365 dB/turn at a wavelength of 1550 nm for a bending radius of 5 mm, which is less than the bending loss of 0.5 dB/turn of G.657B. This fiber offers an efficient way to develop the low-bending-loss fibers for the application of fiber-to-the-home.