Spectral anti-broadening due to four-wave mixing in optical fibers

2015/02/08 by Alexander M. Balk, Balk, Alexander M.
Engineering · Physics and Astronomy · #Advanced Fiber Laser Technologies #Advanced Photonic Communication Systems #Exactly Solvable and Integrable Systems (nlin.SI) #FOS: Physical sciences #Optical Network Technologies #Optics (physics.optics) #Soft Condensed Matter (cond-mat.soft)

paper · pdf · doi:10.48550/arxiv.1502.02285

openalex publication_date 2015/02/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We show that the four-wave mixing can restrict spectral broadening. This is a general physical phenomenon that occurs in one-dimensional systems of four wave packets that resonantly interact "2-to-2": ω₁+ω₂=ω₃+ω₄, k₁+k₂=k₃+k₄, when an annihilation of one pair of waves results in the creation of another pair. In addition, for this phenomenon to occur, the group velocities C₁,C₂,C₃,C₄ of the packets should be in a certain order: The extreme value (max or min) of the four group velocities should be in the same pair with the middle value of the remaining three, e.g. C₁

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