Journal
OPTICS EXPRESS
Volume 26, Issue 4, Pages 4050-4059Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.26.004050
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Funding
- K. A. Wallenberg Foundation
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Flat and wide-bandwidth gain spectrum, along with phase-sensitive gain with no need to generate amplifier input idlers, can be achieved with a coupled dual-core fiber optical parametric amplifier. In this paper, we analyze the noise properties of such an amplifier. We achieve a 3 dB noise figure in the phase-insensitive case and a minimum of -6 dB noise figure in the phase-sensitive configuration. An alternative phase-sensitive configuration is also studied, that avoids the use of idlers at the input of the amplifier, leading to a 3 dB flat spectrum combined noise figure for the output signals. Pump transfer noise in phase-insensitive and phase-sensitive configurations is also studied along with the noise figure variation against the length of the amplifier. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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