光学与光电技术, 2008, 6 (5): 0029, 网络出版: 2010-05-24
掺锗硅基高非线性光纤超连续光源研究
Supercontinuum Generation in High Nonlinear Germano-Silicate Fiber
超连续光谱 高非线性光纤 掺铒光纤锁模激光器 孤子分裂 非线性偏振旋转 supercontinuum high nonlinear fiber mode-locked Er-doped fiber laser soliton fission nonlinear polarization rotation
摘要
利用非线性偏振旋转锁模掺铒光纤激光器和1100m长的掺锗硅基高非线性光纤制作了超连续光源,获得了从1150~1750nm的超宽带输出光谱,其中1150~1350nm波段光谱起伏小于3dB,1600~1700nm波段平坦度优于1dB,并有很好的向长波延展空间。光谱展宽的机理为孤子分裂与受激拉曼散射,而四波混频使光谱进一步展宽。
Abstract
A supercontinuum generation in 1100 m germano-silicate high nonlinear fiber is demonstrated. An ultra-broadband supercontinuum of 1150~1750 nm is achieved. The ripple between 1150 nm and 1350 nm is less than 3 dB, and the ripple between 1600 nm and 1700 nm is less than 1 dB. The supercontinuum is expected to extend broadly in wavelength over 1750 nm. A nonlinear Schr?dinger equation model is adopted to indicate the spectral broadening mechanism is soliton fission and stimulated Raman scattering in soliton, and four wave mixing also plays an important role.
马鸿志, 许立新, 王安廷, 顾春, 高伟清, 明海. 掺锗硅基高非线性光纤超连续光源研究[J]. 光学与光电技术, 2008, 6(5): 0029. MA Hong-zhi, XU Li-xin, WANG An-ting, GU Chun, GAO Wei-qing, MING Hai. Supercontinuum Generation in High Nonlinear Germano-Silicate Fiber[J]. OPTICS & OPTOELECTRONIC TECHNOLOGY, 2008, 6(5): 0029.