EXPERIMENTAL COMPARISON OF 980-NM AND 1480 NM-PUMPED SATURATED IN-LINE ERBIUM-DOPED FIBER AMPLIFIERS SUITABLE FOR LONG-HAUL SOLITON TRANSMISSION-SYSTEMS

The performance of 980 nm and 1480 nm pumped erbium-doped fiber amplifiers applicable to high bit rate, long-haul soliton transmission systems is compared. Depending upon the system parameters and preferred pumping configuration, 980 nm pumping is likely to offer a noise figure advantage of between 1.0 and 1.5 dB. However, the tolerances on pump wavelength are significantly tighter around 980 nm than at 1480 nm.