@INPROCEEDINGS {11136,
author={A. Sousa and C. Marques and R.N.  Nogueira and P.S André},
booktitle={EUROCON and CONFTELE 2011},
title={Optical signal to noise ratio monitoring with Hi-Bi fiber Bragg grating},
year={2011},
month={April},
volume={},
pages={1-3} 
}
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