Generation of Frequency-Modulated Optical Pulses of the IR Range in a Semiconductor Waveguide Structure with an Implemented Space Charge Wave

Abstract

Abstract: Conditions for amplification and modulation of electromagnetic emission in the process of its interaction with the space charge wave formed in a semiconductor cylindrical structure are considered. The possibility of implementing the resulting gain G > 105 m–1 and strong phase modulation (chirp) for wave packets propagating on the surface of a semiconductor cylindrical waveguide is shown. A ring laser scheme capable to provide generation of frequency-modulated subnanosecond pulses with a peak power above 1 kW and carrier frequency tunable in a wide spectral range is proposed.