WELLENLÄNGENABSTIMMBARER RINGRESONATOR

摘要

A ring laser arrangement adapted for providing an optical beam travelling on an optical path representing a closed loop, includes a laser gain medium coupled into the optical path for amplifying the optical beam by stimulated emission, and a wavelength filter coupled into the optical path for providing a wavelength selection to the optical beam travelling along the optical path. A reverse beam travelling in one direction of the optical path is utilized for controlling at least one property of a forward beam travelling in an opposite direction of the optical path.