A 212 km NON-REPEATED TRANSMISSION EXPERIMENT AT 1.8 Gb/s USING LD PUMPED Er3+-DOPED FIBER AMPLIFIERS IN AN IM/DIRECT-DETECTION REPEATER SYSTEM
1992 ◽
Vol 4
(7)
◽
pp. 717-720
◽
1992 ◽
Vol 4
(2)
◽
pp. 179-182
◽