SIMULATION OF LASERS BASED ON THE STIMULATED RAMAN SCATTERING EFFECT IN SPECIAL TELLURITE FIBERS AND MICRORESONATORS
E. A. Anashkina, A. V. Andrianov
A. V. Gaponov-Grekhov Institute of Applied Physics, Russian Academy of Sciences, Nizhny Novgorod, Russia
Keywords: stimulated Raman scattering, optical microresonator, multicore fiber, tellurite glass, laser
Abstract
Lasers of various power classes from tens of µW to tens of W based on the stimulated Raman scattering (SRS) effect in waveguide elements made of tellurite glasses are studied. Due to the high SRS gain and large SRS frequency shift, tellurite glasses are promising materials for the development of laser sources at a wavelength of about 2.3 μm with a pump at a wavelength of about 2 μm, which was used in the work. A detailed numerical simulation of Raman lasers based on single-core and multicore special tellurite fibers is carried out. It is shown that the conversion efficiency of pump power to SRS wave power for optimal parameters can exceed 50%. Detailed modeling of low-power Raman lasers based on high-Q microresonators is performed; optimal parameters and factors limiting generation are found.
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