Abstract

Cross-connect switching devices are essential elements in realizing dynamic route selection In future all-optical communications networks.1 To be attractive, this type of device needs to be modulation and wavelength transparent (i.e., totally optical transparent), and have low signal loss, low optical switching power and high reliability. The device reported here possesses all these features and works on the principle of phase shifts in ytterbium-doped fiber far from the 980nm resonance, caused by changes in the absorption of strong bands in the Vacuum-UV.2,3

© 1996 Optical Society of America

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