Optimizing the performance of a monolithic Tm3+, Ho3+-codoped fiber laser by FBG reflected wavelength and fiber gain matching

We present the optimization of a 2.1-µm continuous wave monolithic single-oscillator laser by adapting the Fiber Bragg Grating (FBG) reflected wavelength to the maximum gain wavelength of the Tm 3+ , Ho 3+ -codoped fiber. Our study examines the power and spectral evolution of the all-fiber laser and demonstrates that matching these two parameters improves the overall performance of the source.