Merging device for merging optical components for e.g. optical access network, has combination element to obtain blocking signal by combining duplicated optical components other than optical component for merging

摘要

The device (20) has an optical element (31) arranged to switch to a blocking position for blocking an optical component for merging, as a function of a blocking signal. A duplication element (41) is arranged to duplicate the optical component for merging for sending to a combination element (61), where the combination element is arranged to obtain the blocking signal by combining duplicated optical components other than the optical component for merging. A merging module (70) is arranged to merge the optical components output by the optical element. Independent claims are also included for the following: (1) an optical combiner for optical signals (2) an optical node for aggregating optical signals (3) a method for merging optical components associated with one wavelength into an optical component associated with the wavelength (4) a method for optically combining optical signals.