光通信技术
光通信技術
광통신기술
OPTICAL COMMUNICATION TECHNOLOGY
2009年
10期
31-34
,共4页
光通信%光子晶体光纤%超连续谱%分步傅立叶法
光通信%光子晶體光纖%超連續譜%分步傅立葉法
광통신%광자정체광섬%초련속보%분보부립협법
optical communication%photonic crystal fiber%supercontinuum%method of split-step fourier
光谱超连续展宽在光通信中有重要的应用,用分步傅立叶法研究和分析了在光子晶体光纤中飞秒激光脉冲的传输特性和超连续谱的产生机理.结果表明:在光子晶体光纤中,超连续谱的产生是自相位调制、四波混频、交叉相位调制效应综合作用的结果,其中自相位调制效应起先导作用;光脉冲的峰功率、初始啁啾及光纤长度对超连续谱的形状和带宽有影响.
光譜超連續展寬在光通信中有重要的應用,用分步傅立葉法研究和分析瞭在光子晶體光纖中飛秒激光脈遲的傳輸特性和超連續譜的產生機理.結果錶明:在光子晶體光纖中,超連續譜的產生是自相位調製、四波混頻、交扠相位調製效應綜閤作用的結果,其中自相位調製效應起先導作用;光脈遲的峰功率、初始啁啾及光纖長度對超連續譜的形狀和帶寬有影響.
광보초련속전관재광통신중유중요적응용,용분보부립협법연구화분석료재광자정체광섬중비초격광맥충적전수특성화초련속보적산생궤리.결과표명:재광자정체광섬중,초련속보적산생시자상위조제、사파혼빈、교차상위조제효응종합작용적결과,기중자상위조제효응기선도작용;광맥충적봉공솔、초시조추급광섬장도대초련속보적형상화대관유영향.
Supercontinuum properties are important in optical communication. For researching on the super-continuum generation in a photonic crystal fiber , Femtosecond laser pulse propagation and supercontinuum generation in a photonic crystal fiber is investigated and analyzed by method of split-step Fourier. Analysis indicates the Supercontinuum is jointly induced by self-phase-modulation which broadens the entire response spectrum, by four-wave-mixing and by cross-phase-modulation , which boosts the Supercontinuum broadening . It is also shown that the initial pulse power, initial pulse chirp and the length of optical fiber have the impact on the spectral shape and band width of the supercontinuum generation at the anomalous dispersion region in a photonic crystal fiber.
