Gain modulation response of erbium-doped fiber amplifiers
- 1 February 1993
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Photonics Technology Letters
- Vol. 5 (2) , 224-226
- https://doi.org/10.1109/68.196012
Abstract
The small-signal low frequency response characteristics of erbium-doped fiber amplifiers (EDFAs) are examined theoretically and experimentally. Modulating the pump laser results in a low-pass transfer of modulation from the pump to signals amplified in the EDFA. A signal modulated at low frequencies and amplified by an EDFA experiences a transfer function that is similar to that of a lead compensator, which has one zero followed in frequency by one pole. Experimental results verify both the magnitude and phase response of the theoretical transfer functions.Keywords
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