Title :
Generation of 35-nJ Nanosecond Pulse From a Passively Mode-Locked Tm, Ho-Codoped Fiber Laser With Graphene Saturable Absorber
Author :
Bo Fu ; Lili Gui ; Xiao Li ; Xiaosheng Xiao ; Hongwei Zhu ; Changxi Yang
Author_Institution :
Dept. of Precision Instrum., Tsinghua Univ., Beijing, China
Abstract :
We report a passively mode-locked thulium, holmium-codoped fiber laser with graphene saturable absorber. Stable nanosecond pulse with output pulse energy up to 35 nJ is obtained at the repetition rate of 0.964 MHz. The tunable output spectral range is from 1897.69 to 1930.27 nm by simply changing the pump power. Higher output pulse energy is promising but limited by the damage threshold of the fiber component.
Keywords :
fibre lasers; graphene; holmium; laser mode locking; optical pulse generation; optical pumping; optical saturable absorption; thulium; C; damage threshold; energy 35 nJ; fiber laser; frequency 0.964 MHz; graphene saturable absorber; laser passive mode locking; nanosecond pulse generation; pump power; wavelength 1897.69 nm to 1930.27 nm; Graphene saturable absorber; mode-locked fiber laser; thulium doped fiber;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2013.2264456
