光电子·激光
光電子·激光
광전자·격광
JOURNAL OF OPTOECTRONICS·LASER
2003年
12期
1284-1287
,共4页
强则煊%张徐亮%金如翔%何赛灵
彊則煊%張徐亮%金如翔%何賽靈
강칙훤%장서량%금여상%하새령
掺铒光纤放大器(EDFA)%L-波段%增益%噪声指数(NF)
摻鉺光纖放大器(EDFA)%L-波段%增益%譟聲指數(NF)
참이광섬방대기(EDFA)%L-파단%증익%조성지수(NF)
erbium doped fiber amplifier(EDFA)%L-band%gain%noise figure(NF)
针对传统L-波段掺铒光纤放大器(EDFA)转换效率不高,提出了一种在未泵浦掺铒光纤的输入端插入一根布拉格光栅(FBG)的L-波段EDFA新结构.实验表明这种结构可以提高功率转换效率,小信号增益增加约3 dB.基于考虑ASE噪声的Giles模型,建立了这种EDFA的理论模型,并运用数值模拟算法系统地分析了布拉格波长及其反射率等参量对放大性能的影响.
針對傳統L-波段摻鉺光纖放大器(EDFA)轉換效率不高,提齣瞭一種在未泵浦摻鉺光纖的輸入耑插入一根佈拉格光柵(FBG)的L-波段EDFA新結構.實驗錶明這種結構可以提高功率轉換效率,小信號增益增加約3 dB.基于攷慮ASE譟聲的Giles模型,建立瞭這種EDFA的理論模型,併運用數值模擬算法繫統地分析瞭佈拉格波長及其反射率等參量對放大性能的影響.
침대전통L-파단참이광섬방대기(EDFA)전환효솔불고,제출료일충재미빙포참이광섬적수입단삽입일근포랍격광책(FBG)적L-파단EDFA신결구.실험표명저충결구가이제고공솔전환효솔,소신호증익증가약3 dB.기우고필ASE조성적Giles모형,건립료저충EDFA적이론모형,병운용수치모의산법계통지분석료포랍격파장급기반사솔등삼량대방대성능적영향.
To improve the poor power conversion efficiency of L-band erbium doped fiber amplifier(EDFA),a new construction using a fiber Bragg grating(FBG) in an unpumped EDF section at the input side was proposed.Based on the Giles model with ASE,numerical simulation for the L-band EDFA was carried out.The influence of the Bragg wavelength and the reflectivity of the FBG to the characteristics of the designed L-band EDFA was studied.Experimental and theoretical results demonstrate that it can increase the small signal gain more than 3 dB.
