NM03 – Simulation of Near-IR and Mid-IR Cascade Raman Microlasers Based on Bismuth-Modified Tungsten-Tellurite Glass

We theoretically investigate cascade Raman generation in bismuth-modified tungsten-tellurite glass microlasers, for the first time for microcavities based on TeO2 glasses. The calculated results demonstrate the opportunities of CW Raman generation in the near-IR and mid-IR ranges with CW pump at the wavelength of 1.55 μm. The predicted wavelengths are 1.81 µm, 2.17 µm, 2.70 µm, and 3.59 µm for the 1st, 2nd, 3rd, and 4th Raman orders, respectively. The diagram of power thresholds was calculated, as well as the output powers as functions of the pump power and detuning between the pump frequency and the corresponding microcavity eigenfrequency.