光子学报
光子學報
광자학보
ACTA PHOTONICA SINICA
2010年
1期
16-20
,共5页
方平%杨直%王屹山%赵卫%张挺%李成%段作梁%段开椋
方平%楊直%王屹山%趙衛%張挺%李成%段作樑%段開椋
방평%양직%왕흘산%조위%장정%리성%단작량%단개량
超连续谱%二次采样法%分步傅里叶方法%亚纳秒脉冲
超連續譜%二次採樣法%分步傅裏葉方法%亞納秒脈遲
초련속보%이차채양법%분보부리협방법%아납초맥충
Supercontinuum%Twice sampling%Split-step Fourier method%Sub-nanosecond pulse
提出了一种基于分步傅里叶方法的二次采样法,用以模拟和分析亚纳秒脉冲泵浦光子晶体光纤产生的超连续谱特性.通过此方法在广义非线性薛定谔方程上的应用,在超连续谱模拟中显著缩短了运算时间,模拟结果与实验符合很好.同时还对模拟光谱与实验结果间的细微差别做了讨论.通过此方法,模拟了1.8 m晶体光纤中产生的1.15 W续谱和光谱沿光纤长度的演化,为超连续谱实验研究的优化设计提供了依据.
提齣瞭一種基于分步傅裏葉方法的二次採樣法,用以模擬和分析亞納秒脈遲泵浦光子晶體光纖產生的超連續譜特性.通過此方法在廣義非線性薛定諤方程上的應用,在超連續譜模擬中顯著縮短瞭運算時間,模擬結果與實驗符閤很好.同時還對模擬光譜與實驗結果間的細微差彆做瞭討論.通過此方法,模擬瞭1.8 m晶體光纖中產生的1.15 W續譜和光譜沿光纖長度的縯化,為超連續譜實驗研究的優化設計提供瞭依據.
제출료일충기우분보부리협방법적이차채양법,용이모의화분석아납초맥충빙포광자정체광섬산생적초련속보특성.통과차방법재엄의비선성설정악방정상적응용,재초련속보모의중현저축단료운산시간,모의결과여실험부합흔호.동시환대모의광보여실험결과간적세미차별주료토론.통과차방법,모의료1.8 m정체광섬중산생적1.15 W속보화광보연광섬장도적연화,위초련속보실험연구적우화설계제공료의거.
In this paper, a method of twice sampling based on split-step Fourier method was developed to analyze and simulate the supercontinuum generation in photonic crystal fiber pumped by sub-nanosecond laser pulse. Applying this saved in Supercontinuum simulation,and the simulated spectrum agrees well with the experimental result under the same conditions. Also, the slight dissimilarities between the simulated spectrum and the experimental one were discussed. The simulated supercontinuum with 1.15W power generated in 1.8 m Photonic Crystal Fiber and the evolution of spectrum by our work can give reference for improving further experiment setup.
