Frequency tuning due to nonlinear effects in whispering gallery mode laser based on InAsSb/InAsSbP heterostructure

Frequency tunable infrared whispering gallery mode (WGM) semiconductor laser with a disk cavity has been created that operates at a wavelength of 3.5 μm at a temperature of 79 K. The laser radiation spectra have been studied. Smooth tuning of the main WGM toward shorter wavelengths by 11 A due to nonlinear optical effects has been observed.