LASER-LIGHT TRANSMISSION DEVICE.

摘要

A system and method for transmitting and monitoring laser light includes a laser for emission of a first beam with a given wavelength into a transmission path. A second beam is generated with a wavelength differing from the given wavelength. The second beam is coupled into the transmission path of the first beam and the first and second beams are superimposed in a propagation direction. The second beam is wavelength-selectively reflected in the transmission path as a reflected second beam. The reflected second beam is decoupled from the transmission path. A detector is provided for the reflected second beam. An interruptor is operatively connected to the detector for interrupting the first beam.