LD13pd–Numerical Modeling and Experimental Validation of Tm- and Er-Doped Tellurite Microsphere Lasers
We report an efficient semi-analytical method for modeling of CW rare-earth ion-doped microlasers. We numerically simulated threshold pump powers and expected laser wavelengths for in-band pumped Tm- and Er-doped tellurite glass microspheres. With the increase of Q-factor, the laser wavelength grows smoothly for Tm and there are jumps from the C-band to the L-band for Er, which confirmed experimentally. The same method was used to study the possibility of multi-wavelength cascade lasing in Tm-doped microsphere pumped at 0.792 μm. Depending on the pump power and Q-factor, single-wavelength lasing at 1.9 μm, two-wavelength lasing at 1.9&1.5 μm and at 1.9&2.3 μm, and three-wavelength lasing at 1.9&1.5&2.3 μm can be attained. The presented theoretical model can be used to simulate microlasers based on different matrices doped with different active ions.
This content is locked
Login To Unlock The Content!