Frequency comb enhancement via the self-crystallization of vectorial cavity solitons

• DOI: 10.1364/oe.536954
• Publication Date: 2024-09-16T10:00:11Z
• Authors: Graeme N. Campbell; Lewis Hill; Pascal Del’Haye; Gian-Luca Oppo
• Keywords: Self-phase modulation

Long-range interactions between dark vectorial temporal cavity solitons are induced by the formation of patterns via spontaneous symmetry breaking orthogonally polarized fields in ring resonators. Turing alternating polarizations form adjacent solitons, pushing them apart so that a random distribution along length spontaneously reaches equal equilibrium distances, soliton crystal, without any mode crossing or external modulation. Enhancement frequency comb is achieved through regularly spaced crystals, ‘self-crystallization’, with greater power and spacing spectral lines for increasing numbers. Partial self-crystallization also achievable long cavities, allowing one to build crystal sections controllable numbers separated intervals pattern solutions of, again, length.