CAJ | 학술논문

应用模式耦合理论系统地研究了空气孔辅助六芯光纤的耦合特性。特别考虑了非临近纤芯对互耦合系数及自耦合系数的作用，分析了光纤结构参数变化对耦合系数、串扰及模场面积的影响。研究表明，通过调整光纤的结构参数，可以充分利用光纤的横截面，有效降低纤芯间耦合，在保持低串扰（-30 dB以下）的前提下，实现较大的单芯有效面积（120~150μm2）。
응용모식우합이론계통지연구료공기공보조륙심광섬적우합특성。특별고필료비림근섬심대호우합계수급자우합계수적작용，분석료광섬결구삼수변화대우합계수、천우급모장면적적영향。연구표명，통과조정광섬적결구삼수，가이충분이용광섬적횡절면，유효강저섬심간우합，재보지저천우（-30 dB이하）적전제하，실현교대적단심유효면적（120~150μm2）。
Based on mode-coupled theory, the coupling characteristics of hole-assisted six-core fiber are re?searched systematically. The effect of nonadjacent fiber core on mutual coupled and self-coupled parameters is espe?cially considered. And the influence on coupled parameter, crosstalk and mode area from the changing of fiber struc?ture parameters is analyzed. Research results show that coupled effects among fiber core can be reduced effectively by making the best of fiber cross section through adjusting the structure parameters of fiber. Under the condition of keeping low crosstalk, larger single core effective area can be achieved.