We have studied the impact of zero dispersion wavelength (ZDW) fluctuations in coupled dual-core fiber optical parametric amplifiers (FOPAs) and compared it to the single-core single-pump FOPA. We have designed a Monte Carlo model, that simulates a multidimensional Ornstein-Uhlenbeck process, describing accurately ZDW fluctuations in single and multicore fibers. In order to validate our results we have developed an analytical model, based on Taylor expansion of the average gain and successfully compared both models, with experimental results published in the literature. We have found that a significant reduction of the impact of ZDW fluctuations can be obtained in dual-core FOPAs compared to single-core ones.
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Acknowledgement: Marie Skłodowska-Curie Actions POLSAR (713694) is
acknowledged. The following EPSRC projects funded the local Aston cluster, used in the simulations of this paper, PEACE (EP/L000091/1), PHOS (EP/S003436/1), UNLOC (EP/J017582/1) and TRANSNET (EP/R035342/1). Auro M. Perego acknowledges support from the Royal Academy of
Engineering under the Research Fellowship scheme. The authors would like to acknowledge the voluntary effort of reviewers, especially reviewer 1, but also reviewer 2 for the very detailed review reports provided and the time voluntarily given in reviewing this technical work. Matlab Files with scripts and data extracted from figures are available under reasonable
- Optical fiber amplifiers
- Multicore processing
- Optical fiber networks
- Stimulated emission
- Fiber optical parametric amplifiers
- Coupled-core fibers
- fiber supermodes
- Zero-dispersion wavelength fluctuations