2003/09/15 by David E. Anderson, D. Anderson, L. Helczynski +4 · 1 citation
Physics and Astronomy · #Advanced Fiber Laser Technologies #Laser-Matter Interactions and Applications #Nonlinear Photonic Systems #physics.gen-ph #physics.optics
paper · pdf · doi:10.1103/physreve.69.025601
4 pages, 2 figures, submitted to Phys. Rev. Lett
arxiv created 2003/09/15 · openalex publication_date 2004/02/26 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/30
It is shown that the properties of the modulational instability of partially coherent waves propagating in a nonlinear Kerr medium depend crucially on the profile of the incoherent field spectrum. Under certain conditions, the incoherence may even enhance, rather than suppress, the instability. In particular, it is found that the range of modulationally unstable wave numbers does not necessarily decrease monotonically with increasing degree of incoherence and that the modulational instability may still exist even when long wavelength perturbations are stable.