摘要
利用高分子聚合物聚乙烯醇(PVA)易成膜且机械性能优良的特点,将微米尺寸的石墨烯薄片制成大尺寸的石墨烯-PVA薄膜。分别测量了石墨烯-PVA薄膜与石墨烯片的拉曼光谱,发现二者具有同样的特征。研制了用该石墨烯-PVA薄膜作为饱和吸收体,具有环形腔结构的被动锁模掺铒光纤激光器,获得了峰值波长1532.75 nm,重复频率8.7 MHz,脉冲宽度10.29 ps的脉冲序列。
A graphene-PVA film is fabricated by using polyvinyl alcohol（PVA）,which provides excellent mechanical property and easy operation.Raman spectra of the graphene-PVA film and graphene sheets are measured,which show that the spectra have the same characteristics.The passively mode-lock Er-doped fiber laser with graphene-PVA film as saturable absorber is made,which produces the mode-locked pulses with duration of 10.29 ps,peak wavelength of 1532.75 nm,and repetition rate of 8.7 MHz.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2011年第3期17-19,共3页
Chinese Journal of Lasers
基金
国家自然科学基金(60778017)
山东省优秀中青年科学家科研奖励基金(BS2009DX014)
聊城大学科研基金(X09024)资助课题
