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

Jaka Petelin | Zendy; B. Podobnik | Zendy; Rok Petkovšek | Zendy

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

Author(s) -

Jaka Petelin,

B. Podobnik,

Rok Petkovšek

Publication year - 2015

Publication title -

applied optics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.668

H-Index - 197

eISSN - 2155-3165

pISSN - 1559-128X

DOI - 10.1364/ao.54.004629

Subject(s) - optics , laser diode , amplifier , optical amplifier , fiber amplifier , fiber laser , open loop gain , gain , gain switching , laser , laser power scaling , materials science , physics , computer science , bandwidth (computing) , automatic gain control , active laser medium , telecommunications

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.

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