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Numerical Investigation of All-Optical Manipulation for Polarization-Multiplexed Cavity Solitons

Temporal cavity solitons (CSs) are pulses that can maintain their shape and circulate indefinitely in a resonant cavity under coherent driving. The approach for writing, erasing, and moving of CSs have significant ramifications for optical signal processing such as buffering. Previous work mainly focused on the manipulation of scalar CSs while conventional macroscopic fiber ring cavity usually supports two polarization states simultaneously. Exploring the CSs manipulation for both one is of great significance for today's polarization-multiplexed systems. In this article, the all-optical CSs manipulation associated with two orthogonal polarizations in a monochromatically driven Kerr resonator is investigated. Based on the vectorial mean-field Lugiato–Lefever equations, we theoretically demonstrate the independent writing, erasing, and moving of polarization-multiplexed CSs through intensity-modulation- or phase-modulation-induced perturbation. The results can be useful guidance for high-speed and high capacity information processing.