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A novel 1:N protection scheme for WDM passive optical networks

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1 Author(s)
Chuan-Ching Sue ; Dept. of Comput. Sci. & Inf. Eng, Nat. Cheng Kung Univ.

This paper presents a 1:N protection scheme based on the cyclic property of an array waveguide grating and a specific connection pattern among the optical network units (ONUs). The proposed scheme requires half the number of wavelengths of existing schemes presented in the literature. Although the current scheme requires more fiber links among the ONUs than previous schemes, the network resource demands are greatly reduced and the protection performance is improved

Published in:

Photonics Technology Letters, IEEE  (Volume:18 ,  Issue: 13 )