2026-10-14T13:35:55Z https://api.figshare.com/v2/oai

oai:figshare.com:article/34020663 2026-09-29T07:24:22Z category_37398 portal_1023 item_type_12 month_year_09_2026

Non-equilibrium Langevin dynamics of optical solitons: Raman dissipation, radiative decay, and the frequency-jitter spectrum Flávio Takakura (25134294) Fernando Araújo-Moreira (25134297) Fiber Optics and Optical Communications Optical solitons Nonlinear fiber optics Raman scattering Cherenkov radiation Timing jitter Quantum noise Langevin dynamics Open quantum systems <p dir="ltr">A fiber soliton couples to two reservoirs: the thermal Raman phonon bath and the dispersive-wave continuum from third-order dispersion. Modeling the Raman response as a damped oscillator's Green's function gives a matching dissipation kernel and a fluctuation-dissipation noise kernel. The exact scattering solution yields a closed-form radiative recoil, verified against direct propagation, that self-limits for ordinary fiber dispersion, and a noise crossover near a third-order-dispersion parameter of 0.13. The resulting four-term timing-jitter formula raises the predicted jitter by 1.8 to 4.7 times for 50-100 fs pulses, and the same framework predicts an independently measured Raman-scattering coefficient to within 30%.</p> 2026-09-29T07:24:22Z Text Preprint 10.1364/opticaopen.34020663.v1 https://figshare.com/articles/preprint/Non-equilibrium_Langevin_dynamics_of_optical_solitons_Raman_dissipation_radiative_decay_and_the_frequency-jitter_spectrum/34020663 CC BY 4.0