城市建设理论研究(电子版)
城市建設理論研究(電子版)
성시건설이론연구(전자판)
ChengShi Jianshe LiLun Yan Jiu
2014年
22期
5928-5928
,共1页
光纤Bragg光栅%群时延%光器件
光纖Bragg光柵%群時延%光器件
광섬Bragg광책%군시연%광기건
fiber Bragg gratings%group delay%the Optical device
采用数值计算的方法研究了了纤芯折射率对光纤Bragg光栅群时延的影响。结果表明:随着纤芯折射率的增大光纤Bragg光栅的群时延量不断减小,时延峰值产生红移,且移动的幅度较大;同时一定带宽的谐振峰两边的旁瓣加强,整体呈现递减趋势。这些规律为设计新型的光器件提供理论参考。
採用數值計算的方法研究瞭瞭纖芯摺射率對光纖Bragg光柵群時延的影響。結果錶明:隨著纖芯摺射率的增大光纖Bragg光柵的群時延量不斷減小,時延峰值產生紅移,且移動的幅度較大;同時一定帶寬的諧振峰兩邊的徬瓣加彊,整體呈現遞減趨勢。這些規律為設計新型的光器件提供理論參攷。
채용수치계산적방법연구료료섬심절사솔대광섬Bragg광책군시연적영향。결과표명:수착섬심절사솔적증대광섬Bragg광책적군시연량불단감소,시연봉치산생홍이,차이동적폭도교대;동시일정대관적해진봉량변적방판가강,정체정현체감추세。저사규률위설계신형적광기건제공이론삼고。
The influence of core index on group delay of fiber Bragg gratings were investigated by numerical simulation method. The results indicate that the group delay decreases with core index increasing. The group delay curves are red-shifted and the degrees of the increasing. A certain bandwidth of resonance peaks on both sides of the side lobe. Present the downward trend. This provides theoretical basis for designing the Optical device based on fiber Bragg gratings.