倏逝场作用氧化石墨烯大能量耗散孤子锁模双包层光纤激光器  

Cladding Pumped All Fiber Mode-locked Laser Based on the Interaction of Graphene Oxide and Fiber-taper Evanescent Field Generates Large Energy Dissipative-soliton

作　　者：吴端端[1] 黄义忠[1] 罗正钱[1] 蔡志平[1] 许惠英[1] 

机构地区：[1]厦门大学信息科学与技术学院,福建厦门361005

出　　处：《厦门大学学报（自然科学版）》2014年第5期666-669,共4页Journal of Xiamen University：Natural Science

基　　金：国家自然科学基金(61275050);高等学校博士学科点专项科研基金(20120121110034)

摘　　要：报道了倏逝场作用氧化石墨烯的可饱和吸收体用于锁模掺镱双包层光纤激光器,产生大能量151.54nJ耗散孤子.利用熔锥光纤倏逝场诱导沉积氧化石墨烯方法,所制备的可饱和吸收体不仅拥有耐高功率、光纤兼容等优点;而且,熔锥光纤引入光带通滤波,有益于耗散孤子在光纤激光腔中形成.同时结合光纤包层泵浦技术,高脉冲能量耗散孤子在锁模掺镱双包层光纤激光器中被获得,产生的耗散孤子单脉冲能量高达151.54nJ,重复频率271.4kHz,信噪比57dB.We demonstrate evanescent filed based grapheme oxide saturable absorption for mode-locked ytterbium-doped double-clad fiber laser（YDFL）, generating dissipative-soliton（DS） with energy up to 151.54 nJ. Graphene oxide in aqueous suspension is trapped by the optical evanescent light and deposited on taper region. The graphene oxide-deposited-fiber-taper saturable absorption not only boasts advantages of high power-resisting and fiber-compat,but also enjoys fiber-taper-induced light bandpass characteristics. Conse- quently,combining with fiber cladding pumped method,large single pulse energy DS mode-locked operation of YDFL has achieved （a） single pulse energy of 151.54 nJ, （b） a fundamental repetition rate of 271.4 kHz and （c） signal to noise ratio of 57 dB. The large energy DS is mainly attributed to cladding-pumped method obtaining large optical gain easily, evanescent filed-based grapheme oxide saturable absorption resisting high power, the interaction of fiber-taper-induced bandpass characteristics,limitation of fiber gain bandwidth,intracavity optical nonlinear and dispersion.

关 键 词：熔锥光纤 氧化石墨烯 耗散孤子 大能量 锁模 

分 类 号：TN248.1[电子电信—物理电子学]