Dataset for: "Solitons near avoided mode crossings in χ⁽²⁾ nanowaveguides"

This dataset contains modelled dispersion of effect refractive indices for three guided modes for a particular lithium niobate nanowaveguide structure. Two of these guided modes show a particularly interesting characteristic of an avoided mode crossing which the work in the associated manuscript is based on. Data is also included for the predicted modulation instability gain for continuous wave solutions in the modelled system. Simulation data for modulation instability are also included showing its impact on the spectrum and formation of trains of solitons from an unstable continuous wave solution. This work also contains predictions made for the solitons that exist in this system. We include data for predicted pulse energy as well as mapping these solitons from their plane of existence onto the linear dispersion of the system. XFROG spectrograms are given for an example soliton solution showing their unusual specro-temporal structure as well as line plots of many solitons temporal and spectral domain separately. Finally we include simulations of soliton propagation in this system.

Nonlinear optics, soliton, quadratic nonlinearity, lithium niobate, nanowaveguide, mode coupling
Optics, photonics and lasers

Cite this dataset as:
Rowe, W., 2021. Dataset for: "Solitons near avoided mode crossings in χ⁽²⁾ nanowaveguides". Bath: University of Bath Research Data Archive. Available from:


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application/zip (75MB)
Creative Commons: Attribution 4.0

Zip folder of data contained in all figures of the associated publication


Will Rowe
University of Bath


Andriy Gorbach
University of Bath

Dmitry Skryabin
University of Bath

University of Bath
Rights Holder


Data collection method:

Effective refractive index data was modelled using COMSOL Multiphysics (5.3a) combined with self-written code in MATLAB 2020b. Production of all other data is described in the associated publication.

Additional information:

The data is organised into folders for each figure and subfigure panel. The data is given in ".csv" format with each data column labelled with units where appropriate.


Engineering and Physical Sciences Research Council (EPSRC)

EPSRC Centre for Doctoral Training in Condensed Matter Physics

Publication details

Publication date: 5 November 2021
by: University of Bath

Version: 1


URL for this record:

Related papers and books

Rowe, W. R., Gorbach, A. V. and Skryabin, D. V., 2021. Solitons near avoided mode crossings in χ(2) nanowaveguides. In: Physical Review AAmerican Physical Society (APS). Available from:

Contact information

Please contact the Research Data Service in the first instance for all matters concerning this item.

Contact person: Will Rowe


Faculty of Science

Research Centres & Institutes
Centre for Photonics and Photonic Materials