钛宝石激光抽运的被动锁模Tm:YAG陶瓷激光实验研究  

Ti:sapphire pumped passively mode-locked Tm:YAGceramic laser

作　　者：詹敏杰[1] 邹育婉[1] 林清峰[2] 王兆华[1] 韩海年[1] 吕亮[2] 魏志义[1] 章建[3] 唐定远[3] 

机构地区：[1]中国科学院物理研究所光物理重点实验室,北京100190 [2]西安电子科技大学技术物理学院,西安710071 [3]新加坡南洋理工大学,新加坡639798

出　　处：《物理学报》2014年第1期165-169,共5页Acta Physica Sinica

基　　金：国家重点基础研究发展计划(批准号:2012CB821304;2013CB922402);国家自然科学基金(批准号:60808007;10804128)资助的课题~~

摘　　要：本文采用连续钛宝石激光作抽运,掺杂浓度为6 at.%、长度为2.7 mm的Tm:YAG陶瓷作增益介质,通过引入半导体饱和吸收体获得了稳定的被动锁模运转.实验中获得的激光锁模功率为116.5 mW,中心波长为2007 nm,重复频率为109 MHz,通过自行搭建的腔外非共线强度自相关测量得到的脉冲宽度是55 ps.A passively mode-locked Tm：YAG ceramic laser was demonstrated.Employing a 6 at.% Tm^3＋-doped sample with a length of 2.7 mm,we have realized stable mode-locked pulses with a repetition rate of 109 MHz by a semiconductor saturable absorber.A maximum output power of 116.5 mW was obtained at the central wavelength of 2007 nm.The corresponding pulse duration was determined to be 55 ps by a self-built noncollinear intensity auto-correlation setup.It is shown that Tm：YAG ceramics are excellent laser materials which can be used in ultrafast lasers with high-power and high-efciency output.

关 键 词：2μm波长 TM YAG 陶瓷激光器 被动锁模 

分 类 号：TN248[电子电信—物理电子学]