Abstract

Transient gain saturation and recovery with 110–340-μsec time constants were observed in erbium-doped fiber amplifiers. This slow response reduces the effects of saturation-induced cross talk and intermodulation distortion associated with multichannel signal amplification. In a two-channel amplification experiment, negligible saturation-induced cross talk was measured at signal modulation frequencies >5 kHz. Increased suppression of saturation-induced cross talk was achieved through feed-forward compensation to reduce low-frequency gain fluctuations.

© 1989 Optical Society of America

Gain cross saturation and spectral hole burning in wideband erbium-doped fiber amplifiers

M. Tachibana, R. I. Laming, P. R. Morkel, and D. N. Payne
Opt. Lett. 16(19) 1499-1501 (1991)

Theoretical modeling of erbium-doped fiber amplifiers with excited-state absorption

P. R. Morkel and R. I. Laming
Opt. Lett. 14(19) 1062-1064 (1989)

Efficient erbium-doped fiber amplifier at a 1.53-μm wavelength with a high output saturation power

E. Desurvire, C. R. Giles, J. R. Simpson, and J. L. Zyskind
Opt. Lett. 14(22) 1266-1268 (1989)

Raman cross talk of soliton collision in a lossless fiber

Sien Chi and Senfar Wen
Opt. Lett. 14(21) 1216-1218 (1989)

Analytic modeling of high-gain erbium-doped fiber amplifiers

T. Georges and E. Delevaque
Opt. Lett. 17(16) 1113-1115 (1992)