Numerical Study of Efficient Tm-Doped Zinc-Tellurite Fiber Lasers at 2300 nm

Fiber laser sources operating near 2300 nm in the atmospheric transparency window are interesting for different applications, such as remote sensing, lidars, and others. The use of Tm-doped fiber lasers based on tellurite fibers is highly promising. We propose theoretically study a efficient diode-pumped zinc-tellurite at two cascade radiative transitions 1960 nm, with additional energy transfer between these waves due to Raman interaction. demonstrate numerically that dramatic increase slope efficiency up 57% wave exceeding Stokes limit by 22% relative pump 793 can be obtained optimized parameters thanks from nm.