光通信研究
光通信研究
광통신연구
STUDY ON OPTICAL COMMUNICATIONS
2015年
2期
43-46
,共4页
复式三角晶格%光子晶体光纤%光子带隙%低损耗%硫系玻璃
複式三角晶格%光子晶體光纖%光子帶隙%低損耗%硫繫玻璃
복식삼각정격%광자정체광섬%광자대극%저손모%류계파리
compound triangular lattice%photonic crystal fiber%photonic bandgap%low loss%chalcogenide glass
提出一种基于复式三角晶格的红外光子晶体光纤，该光纤采用具有优良透过特性的 Ge30 Sb8 Se62硫系玻璃作为基底材料，由圆形与方形两种介质柱组成晶格，两者按横、纵向上错位相间嵌套排列，每个介质柱与相邻介质柱的夹角都成60°。文章采用平面波展开法和有限元法分析了不同结构下该光纤的光子带隙和限制损耗特性，通过优化光纤的结构参数，获得了10.6μm 处大带隙、低损耗的光子晶体光纤。
提齣一種基于複式三角晶格的紅外光子晶體光纖，該光纖採用具有優良透過特性的 Ge30 Sb8 Se62硫繫玻璃作為基底材料，由圓形與方形兩種介質柱組成晶格，兩者按橫、縱嚮上錯位相間嵌套排列，每箇介質柱與相鄰介質柱的夾角都成60°。文章採用平麵波展開法和有限元法分析瞭不同結構下該光纖的光子帶隙和限製損耗特性，通過優化光纖的結構參數，穫得瞭10.6μm 處大帶隙、低損耗的光子晶體光纖。
제출일충기우복식삼각정격적홍외광자정체광섬，해광섬채용구유우량투과특성적 Ge30 Sb8 Se62류계파리작위기저재료，유원형여방형량충개질주조성정격，량자안횡、종향상착위상간감투배렬，매개개질주여상린개질주적협각도성60°。문장채용평면파전개법화유한원법분석료불동결구하해광섬적광자대극화한제손모특성，통과우화광섬적결구삼수，획득료10.6μm 처대대극、저손모적광자정체광섬。
This paper proposes a compound triangular lattice-based infrared photonic crystal fiber.This fiber uses chalcogenide glass Ge30 Sb8 Se62 with good transmittance as the substrate material.The lattice consists of circular and square dielectric cylin-ders,which are horizontally and vertically dislocated in an interphase nested arrangement and every two adjacent cylinders are inclined to each other at 60°.This paper analyzes the photonic bandgap and limit loss characteristics of the fiber in different structures by using the plane wave expansion method and the finite element method and obtains a large bandgap and low-loss photonic crystal fiber at 10.6 μm by optimizing the structural parameters of the fiber.
