Noise in phase-(in)sensitive dual-core fiber parametric amplification

Optics Express
Vitor RibeiroMagnus Karlsson

Abstract

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.

References

Oct 18, 2004·Optics Express·Colin McKinstrieM Raymer
Jan 27, 2016·Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences·D J Richardson
Apr 7, 2017·Optics Express·Vitor RibeiroPeter Andrekson

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