Numerical analysis of optical propagation characteristics of side-polished photonics crystal fiber
Numerical analysis of optical propagation characteristics of side-polished photonics crystal fiber
复制标题
DOI：
10.1007/s11082-013-9834-6
复制
发表时间：
2014-10
影响因子：
3
通讯作者：
Xiaoli He;Zhe Chen;Jianhui Yu;Yingxin Zeng;Yunhan Luo;J. Zhang;Jieyuan Tang;Huihui Lu
中科院分区：
文献类型：
--
作者：
Xiaoli He;Zhe Chen;Jianhui Yu;Yingxin Zeng;Yunhan Luo;J. Zhang;Jieyuan Tang;Huihui Lu
为了设计基于侧面抛光光子晶体光纤（SPPCF）的新型全光纤器件，分析了不同抛光参数（剩余半径R、沿光子晶体光纤沿着方向的抛光长度z和方位角）下SPPCF的光传输特性。计算并分析了空气孔截面为六边形的SPPCF的透射率和横模沿着的演化规律。模拟结果表明，随着抛光长度z的增加，SPPCF中的光功率透过率减小，并出现振荡。当剩余半径小于0.5m时，不同抛光方位角下的横模演化有显著差异。在抛光区中，最初在SPPCF输入端发射的传播模式将扩展并耦合到高阶传播模式和辐射模式。R越短，SPPCF的光功率透射率越小。当R在0.5 ~ 0.5m范围内时，SPPCF的光学透过率随R的变化与抛光方位角有很大的关系。研究结果为SPPCF基器件的设计和制备提供了参考。
In order to design new all optical fiber devices based on side-polished photonics crystal fiber (SPPCF), we analyzed optical propagation characteristics of SPPCF with different polished parameters, such as residual radius R, polished length z along the PCF, and azimuth. The optical transmittance and the evolution of transverse mode along the SPPCF with a hexagonal arrangement of air hole on cross section were calculated and analyzed. The simulation shows that optical power transmittance in SPPCF decreases and oscillates with the increase of polishing length z. The evolutions of the transverse mode for different polishing azimuth become significant different from each other when the residual radius is polished to be less than 0.5m. In the polished area, the propagation mode, which is originally launched at the input of SPPCF, will spread out and be coupled to high order propagation modes and radiation mode. The shorter the R is, the smaller the optical power transmittance of SPPCF will be. The optical transmittances of SPPCF as a function of R is very dependent on the polishing azimuth when R is in range from0.5 to0.5m The results will provide meaningful reference in design and fabrication of SPPCF-based devices.