Graphene-decorated microfiber knot as a broadband resonator for ultrahigh-repetition-rate pulse fiber lasers  

作　　者：MENG Liu RUI TANG AI-PING Luo WEN-CHENG Xu ZHI-CHAO LUO 

机构地区：[1]Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices & Guangzhou Key Laboratory for Special Fiber Photonic Devices and Applications, South China Normal University, Guangzhou 510006, China [2]Guangdong Provincial Engineenng Technology Research Center for Microstructured Functional Fibers and Devices, South China Normal University, Guangzhou 510006, China

出　　处：《Photonics Research》2018年第10期I0003-I0009,共7页光子学研究（英文版）

基　　金：National Natural Science Foundation of China(NSFC)(11474108,11304101,61307058,61378036);Guangdong Natural Science Funds for Distinguished Young Scholar(2014A030306019);Program for Outstanding Innovative Young Talents of Guangdong Province(2014TQ01X220);Pearl River S&T Nova Program of Guangzhou(2014J2200008);Natural Science Foundation of Guangdong Province(2014A030311037);Program for Outstanding Young Teachers in Guangdong Higher Education Institutes(YQ2015051);Science and Technology Project of Guangdong(2016B090925004);Foundation for Young Talents in Higher Education of Guangdong(2017KQNCX051);Science and Technology Program of Guangzhou(201607010245);Scientific Research Foundation of Young Teacher of South China Normal University(17KJ09)

摘　　要：Searching for an ultrahigh-repetition-rate pulse on the order of hundreds of gigahertz(GHz) is still a challenging task in the ultrafast laser community. Recently, high-quality silicon/silica-based resonators were exploited to generate a high-repetition-rate pulse based on the filter-driven four-wave mixing effect in fiber lasers. However,despite their great performance, the silicon/silica-based resonators still have some drawbacks, such as single waveband operation and low coupling efficiency between the fiber and resonators. To overcome these drawbacks,herein we proposed an all-fiber broadband resonator fabricated by depositing the graphene onto a microfiber knot. As a proof-of-concept experiment, the graphene-deposited broadband microfiber knot resonator(MKR)was applied to Er-and Yb-doped fiber lasers operating at two different wavebands, respectively, to efficiently generate hundreds-of-GHz-repetition-rate pulses. Such a graphene-deposited broadband MKR could open some new applications in ultrafast laser technology, broadband optical frequency comb generation, and other related fields of photonics.Searching for an ultrahigh-repetition-rate pulse on the order of hundreds ofgigahertz （GHz） is still a challenging task in the uhrafast laser community. Recently, high-quality silicon/silica-based resonators were exploited to generate a high-repetition-rate pulse based on the filter-driven four-wave mixing effect in fiber lasers. However, despite their great performance, the silicon/silica-based resonators still have some drawbacks, such as single wave- band operation and low coupling efficiency between the fiber and resonators. To overcome these drawbacks, herein we proposed an all-fiber broadband resonator fabricated by depositing the graphene onto a microfiber knot. As a proof-of-concept experiment, the graphene-deposited broadband microfiber knot resonator （MKR） was applied to Er- and Yb-doped fiber lasers operating at two different wavebands, respectively, to efficiently generate hundreds-of-GHz-repetition-rate pulses. Such a graphene-deposited broadband MKR could open some new applications in ultrafast laser technology, broadband optical frequency comb generation, and other related fields of photonics.

关 键 词：重复频率脉冲 激光技术 发展现状 通讯技术 

分 类 号：TN24[电子电信—物理电子学] TN92