Citation: V. Krasteva et al., PR3-DOPED GE-S-I GLASSES AS CANDIDATE MATERIALS FOR 1.3-MU-M OPTICAL-FIBER AMPLIFIERS(), Journal of non-crystalline solids, 213, 1997, pp. 304-310
Citation: Fq. Wu et al., AN EFFICIENT SINGLE-MODE ND3-GEL METHOD( FIBER LASER PREPARED BY THE SOL), Journal of materials research, 9(10), 1994, pp. 2703-2705