Nonlinear Fourier transform for analysis of optical spectral combs.
basic_science · Level V
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- Record sourced from PubMed, PMID 33736089.
- Also identified by DOI 10.1103/PhysRevE.103.L020202.
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Abstract
The nonlinear Fourier transform (NFT) is used to characterize the optical combs in the Lugiato-Lefever equation with both anomalous and normal dispersion. We demonstrate that the NFT signal processing technique can simplify analysis of the formation of dissipative dark solitons and regimes exploiting modulation instability for a generation of coherent structures, by approximating the comb with several discrete eigenvalues, providing a platform for the analytical description of dissipative coherent structures.