Experimental evidence of two types of photorefractive effects occuring during pulsed or CW photoexposures of Bragg gratings within germanosilicate fibres P. NIAY, P. BERNAGE, W. X. XIE, S. LEGOUBIN, M. DOUAY, J. F. BAYON, T. GEORGES et M. MONERIEJ. Phys. IV France, 04 C4 (1994) C4-602-C4-603DOI: https://doi.org/10.1051/jp4:19944153
