全光纤化高效Er^(3+)-Yb^(3+)共掺光纤放大器的实验研究  

Experiemnt study of all-fiber high-efficiency Er^(3+)-Yb^(3+) codoped amplifier

作　　者：盛朝霞[1] 韩群[2] 

机构地区：[1]天津职业技术师范大学理学院,天津300222 [2]天津大学精密仪器与光电工程学院,天津300072

出　　处：《光电子．激光》2011年第4期512-514,共3页Journal of Optoelectronics·Laser

基　　金：国家自然科学基金资助项目(10674101);天津大学青年教师培养基金资助项目(TJU-YFF-08B48)

摘　　要：对全光纤化高功率Er3+-Yb3+共掺光纤(EYDF)放大器进行了实验研究。采用小芯径双包层EYDF作为增益介质,多模高功率915 nm半导体激光器作为泵浦源,实现了EYDF放大器的全光纤化。对分布反馈(DFB)激光器输出的窄带信号进行放大,得到了斜率效率约为27.2%、最高2.14 W的高功率输出;实验中,未发现明显的受激布里渊散射(SBS)等非线性效应的影响。该放大器可以作为大芯径高功率EYDF激光放大系统的预放级,以获得适用于"人眼"安全应用领域需求的更高功率的激光输出。All-fiber high-power Er3^＋-Yb^3＋ codoped amplifier based on double-cladding small core fiber and multi-mode pump diode at 915 nm is experimentally demonstrated.By seeding the amplifier with a narrow linewidth signal from a distributed feedback（DFB） laser diode,the maximum output power of 2.14 W has been obtained with a slop efficiency of 27.2%.No evident stimulated Brillion scattering（SBS） or other nonlinear effects were observed in the experiment.The amplifier can be used as the front stage of a multi-stage Er3＋-Y3＋ codoped laser system to obtain higher power for ＂eye-safe＂ applications.

关 键 词：激光器 光纤放大器 Er^3+-Yb^3+共掺 全光纤 

分 类 号：TN253[电子电信—物理电子学]