摘要
We report a continuous-wave Er：ZBLAN fiber laser with the operation wavelength reaching 3.68 μm.The midinfrared Er：ZBLAN fiber laser is pumped with the dual-wavelength sources consisting of a commercial laser diode at 970 nm and a homemade Tm-doped fiber laser at 1973 nm.By increasing the launched pump power at1973 nm,the laser wavelength can be switched from 3.52 to 3.68 μm.The maximum output power of 0.85 W is obtained with a slope efficiency of 25.14% with respect to the 1973 nm pump power.In the experiment,the laser emission at 3.68 μm is obtained with a significant power of 0.62 W,which is the longest emission wavelength in free-running Er：ZBLAN fiber lasers.
We report a continuous-wave Er：ZBLAN fiber laser with the operation wavelength reaching 3.68 μm.The midinfrared Er：ZBLAN fiber laser is pumped with the dual-wavelength sources consisting of a commercial laser diode at 970 nm and a homemade Tm-doped fiber laser at 1973 nm.By increasing the launched pump power at1973 nm,the laser wavelength can be switched from 3.52 to 3.68 μm.The maximum output power of 0.85 W is obtained with a slope efficiency of 25.14% with respect to the 1973 nm pump power.In the experiment,the laser emission at 3.68 μm is obtained with a significant power of 0.62 W,which is the longest emission wavelength in free-running Er：ZBLAN fiber lasers.
基金
partially supported by the National Basic Research Program of China(No.2013CBA01505)
the Shanghai Excellent Academic Leader Project(No.15XD1502100)
the National Natural Science Foundation of China(No.61675130)
the National Postdoctoral Program for Innovative Talents(No.190375)
关键词
PUMPED
switched
REACHING
WAVELENGTH
running
coherent
CLADDING
PUMPING
coated
mirror
pumped,switched,reaching,wavelength,running,coherent,cladding,pumping,coated,mirror,
