A technique for detecting the status of wavelength division multiplexed optical signals is disclosed. In a preferred embodiment, the technique is realized by first splitting an original, multiplexed, polychromatic optical beam into at least two representative, multiplexed, polychromatic optical beams....http://www.google.fr/patents/US6480648?utm_source=gb-gplus-shareBrevet US6480648 - Technique for detecting the status of WDM optical signals
Technique for detecting the status of WDM optical signals
