光通信研究
光通信研究
광통신연구
STUDY ON OPTICAL COMMUNICATIONS
2015年
2期
39-42
,共4页
曹原%徐冠杰%孙雨昕%施伟华
曹原%徐冠傑%孫雨昕%施偉華
조원%서관걸%손우흔%시위화
光子晶体光纤%低弯曲损耗%单模%光纤到户
光子晶體光纖%低彎麯損耗%單模%光纖到戶
광자정체광섬%저만곡손모%단모%광섬도호
photonic crystal fiber%low bending-loss%single-mode%FTTH
文章提出了一种对称结构的新型抗弯曲单模光子晶体光纤,采用全矢量有限元法分析了该光纤的单模特性及弯曲特性。在1550 nm 波长处,光纤处于单模运转；当弯曲半径为5 mm 时,弯曲损耗仅为8.73×10-5 dB/圈；最小弯曲半径可达4.5 mm,此时弯曲损耗为2.38×10-4 dB/圈；且无论光纤弯曲与否,其在1550 nm 波长处的模场面积均约为61μm2,色散系数约为11.13 ps/(nm·km),与普通单模光纤相匹配。
文章提齣瞭一種對稱結構的新型抗彎麯單模光子晶體光纖,採用全矢量有限元法分析瞭該光纖的單模特性及彎麯特性。在1550 nm 波長處,光纖處于單模運轉；噹彎麯半徑為5 mm 時,彎麯損耗僅為8.73×10-5 dB/圈；最小彎麯半徑可達4.5 mm,此時彎麯損耗為2.38×10-4 dB/圈；且無論光纖彎麯與否,其在1550 nm 波長處的模場麵積均約為61μm2,色散繫數約為11.13 ps/(nm·km),與普通單模光纖相匹配。
문장제출료일충대칭결구적신형항만곡단모광자정체광섬,채용전시량유한원법분석료해광섬적단모특성급만곡특성。재1550 nm 파장처,광섬처우단모운전；당만곡반경위5 mm 시,만곡손모부위8.73×10-5 dB/권；최소만곡반경가체4.5 mm,차시만곡손모위2.38×10-4 dB/권；차무론광섬만곡여부,기재1550 nm 파장처적모장면적균약위61μm2,색산계수약위11.13 ps/(nm·km),여보통단모광섬상필배。
A novel bend-resistant single-mode photonic crystal fiber in a symmetrical structure is proposed in this paper.The single-mode and bending properties of the fiber are analyzed by using the full-vector finite element method.The fiber is in sin-gle-mode operation at 1 550 nm.The bending loss is only 8.73 × 10 -5 dB/turn when the bending radius is 5 mm and it is 2.38×10 -4 dB/turn when the minimum bending radius is 4.5 mm.In addition,no matter whether the fiber is bended or not, the mode field area and chromatic dispersion are maintained at about 61 μm2 and 1 1.13 ps/(nm · km )respectively at 1 550 nm,well matched with the conventional single-mode fibers.
