物理学报2012，Vol.61Issue(4)：216-222,7.
光子晶体光纤中高效的反斯托克斯信号产生
High efficient anti-Stokes signal conversion in photonic crystal fiber
摘要
Abstract
The anti-Stokes frequency conversion based on four-wave mixing（FWM） has been widely used to generate short-wavelength radiation for high resolution imaging,direct excitation of electronic molecular transitions,and so on.For achieving more effective anti- Stokes conversion,we use the Ti：sapphire laser with a central wavelength of 810 nm and a pulse width of 120 fs as a pump source,and the degenerated FWMs of the higher mode and the fundamental mode are achieved respectively in 0.5 m long and 3 m long photonic crystal fibers（PCFs） with a zero dispersion wavelength of fundamental mode around 820nm in our experiment.The anti-Stokes signals around 560nm are generated efficiently at the fundamental phase matching.The maximum power ratios of anti-Stokes signal at 562 nm to the residual pump component and the Stokes signal are above 33：1 and 25：1,respectively.The maximum conversion efficiencies are achieved to be up to 48%and 34%in theory and experiment,respectively.And then the variation laws of the phase matching and the output spectrum with pump power,wavelength and the fiber length are obtained and the discrepancy between theoretical and experimental results is analyzed.Moreover,the effects of more factors on experimental results are discussed.关键词
光子晶体光纤（PCF）/反斯托克斯信号/四波混频（FWM）Key words
photonic crystal fiber（PCF）/anti-Stokes signal/four-wave mixing分类
数理科学引用本文复制引用
申向伟,余重秀,桑新柱,苑金辉,韩颖,夏长明,侯蓝田,饶芬,夏民,尹霄丽..光子晶体光纤中高效的反斯托克斯信号产生[J].物理学报,2012,61(4):216-222,7.基金项目
国家重点基础研究发展计划（973）项目 （）
北京邮电大学青年科研创新基金 （）
北京邮电大学优秀博士研究生创新基金（批准号：CX201023）资助的课题 （）
