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Burst shaping in a fiber-amplifier chain seeded by a gain-switched laser diode

Jaka Petelin, Boštjan Podobnik, and Rok Petkovšek

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Abstract

A low-power source, such as a gain-switched laser diode, usually requires several amplification stages to reach sufficient power levels. When operating in burst mode, a correct input burst shape must be determined in order to compensate for gain saturation of all amplifier stages. In this paper we report on closed-form equations that enable saturation compensation in multiamplifier setups, which eliminates the need for an adaptive feedback loop. The theoretical model is then evaluated in an experimental setup.

© 2015 Optical Society of America

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