南昌工程学院学报
南昌工程學院學報
남창공정학원학보
JOURNAL OF NANCHANG INSTITUTE OF TECHNOLOGY
2011年
1期
49-52
,共4页
光纤光栅外腔半导体激光器%注入电流%外腔长度%边模抑制比
光纖光柵外腔半導體激光器%註入電流%外腔長度%邊模抑製比
광섬광책외강반도체격광기%주입전류%외강장도%변모억제비
fiber grating external cavity semiconductor lasers%injected current%external cavity length%side-mode suppression ratio
考虑半导体激光器(SL)、光纤光栅外腔(FGE)二者的共同作用,在确定光纤光栅外腔半导体激光器(FGESL)的激光纵模分布后,利用 FGESL满足的多模速率方程,研究了注入电流对FGESL边模抑制比的影响.数值模拟的结果表明:FGESL的边模抑制比(SMSR)随注入电流的增大总体上呈现上升趋势,但其变化过程中有波动,在短外腔时尤其明显.
攷慮半導體激光器(SL)、光纖光柵外腔(FGE)二者的共同作用,在確定光纖光柵外腔半導體激光器(FGESL)的激光縱模分佈後,利用 FGESL滿足的多模速率方程,研究瞭註入電流對FGESL邊模抑製比的影響.數值模擬的結果錶明:FGESL的邊模抑製比(SMSR)隨註入電流的增大總體上呈現上升趨勢,但其變化過程中有波動,在短外腔時尤其明顯.
고필반도체격광기(SL)、광섬광책외강(FGE)이자적공동작용,재학정광섬광책외강반도체격광기(FGESL)적격광종모분포후,이용 FGESL만족적다모속솔방정,연구료주입전류대FGESL변모억제비적영향.수치모의적결과표명:FGESL적변모억제비(SMSR)수주입전류적증대총체상정현상승추세,단기변화과정중유파동,재단외강시우기명현.
Considering the common function of semiconductor laser(SL)and fiber grating external cavity(FGE),we studied the effect of injected current on side-mode suppression ratio when the longitudinal mode distribution of fiber grating external semiconductor lasers(FGESL)is set with the multimode rate equations.The numerical simulation indicates that with the increase of injected current,the SMSR takes on a rising tendency but it has some oscillations during the course of rising,especially for the short external cavity.
