Dual-Wavelength Single-Longitudinal-Mode Tm-Doped Fiber Laser Using PM-CMFBG

作者:Yan Fengping*; Peng Wanjing; Liu Shuo; Feng Ting; Dong Ze; Chang Gee Kung
来源:IEEE Photonics Technology Letters, 2015, 27(9): 951-954.
DOI:10.1109/LPT.2015.2403842

摘要

We have demonstrated a dual-wavelength thulium-doped fiber laser with single-longitudinal-mode (SLM) operation at similar to 2-mu m region. A polarization-maintaining chirped Moire fiber Bragg grating was employed as a polarization-dependent narrow-band filter, to suppress multilongitudinal-mode oscillation. Single- and dual-wavelength switchable operation was achieved by simply adjusting the polarization controller. We also showed that the laser lines retained SLM operation with the additional benefit of single polarization. Meanwhile, the dependence of each laser wavelength on the pump power was also investigated in detail.