Modulated optical signal transmission device for e.g. radar system, has segmented optical fiber where lengths of segments, propagation directions and lines are designed, such that signal has time/phase difference less than periodic duration

摘要

The device has light couplers connected with an optical fiber (3) and a unit, respectively. A controllable absorber is provided in an optical path of the fiber. The fiber is divided into segments, where lengths of the segments, light propagation directions in the segments and supply lines to the segments are designed, such that a modulation signal has slight time/phase difference smaller than a periodic duration of the signal. An independent claim is also included for a method of operating a device for transmission of a modulated optical signal between two units.