Subpicosecond optical solitons in dispersion-shifted optical fibers have been successfully amplified with an Er3+-doped single-mode fiber amplifier. The Er3+-doped fiber amplifier was pumped by two InGaAsP Fabry—Perottype high-power laser diodes, and gains of 2.8 dB at 1.535 µm and 3.8 dB at 1.552µm were obtained for solitons with pulse widths of 0.7–0.9 psec and peak intensities as high as 40 W. The transmission characteristics of the amplified solitons through a long dispersion-shifted fiber are also reported.
© 1989 Optical Society of America
Kazunori Suzuki, Yasuo Kimura, and Masataka Nakazawa, "Subpicosecond soliton amplification and transmission using Er3+-doped fibers pumped by InGaAsP laser diodes," Opt. Lett. 14, 865-867 (1989)