ofiber

ofiber is a Python library for analyzing guided-wave propagation in optical fibers and related dielectric waveguiding structures. It provides analytical and numerical tools for mode analysis, dispersion engineering, and far-field radiation modeling.

The theoretical framework closely follows well-established treatments in:

Ghatak & Thyagarajan, An Introduction to Fiber Optics (Cambridge University Press) https://doi.org/10.1017/CBO9781139174770
Chen, Foundations for Guided-Wave Optics (Wiley) https://doi.org/10.1002/0470042222

The accompanying examples and notebooks are intended to support instruction, research reproducibility, and optical design workflows.

Installation

With pip:

pip install ofiber

Or with conda from conda-forge:

conda install -c conda-forge ofiber

Documentation and Examples

Comprehensive user documentation, theory notes, and executable Jupyter examples are available at:

📄 https://ofiber.readthedocs.io

or use immediately in your browser via the JupyterLite button below

Examples

Symmetric planar waveguides

https://raw.githubusercontent.com/scottprahl/ofiber/main/docs/images/planarwaveguide.svg

Cylindrical step-index fibers

https://raw.githubusercontent.com/scottprahl/ofiber/main/docs/images/stepindexmodes.svg

https://raw.githubusercontent.com/scottprahl/ofiber/main/docs/images/modeirradiance.svg

Far-field radiation patterns

https://raw.githubusercontent.com/scottprahl/ofiber/main/docs/images/farfieldirradiance.svg

Fiber design and dispersion control

https://raw.githubusercontent.com/scottprahl/ofiber/main/docs/images/fiberdesign.svg

Citation

If you use ofiber in academic, instructional, or applied technical work, please cite:

Prahl, S. (2026). ofiber: A Python module for modeling guided-wave light propagation in optical fibers (Version 0.9.1) [Computer software]. Zenodo. https://doi.org/10.5281/zenodo.8368598

BibTeX

@software{ofiber_prahl_2026,
  author    = {Scott Prahl},
  title     = {ofiber: A Python module for modeling guided-wave light propagation in optical fibers},
  year      = {2026},
  version   = {0.9.1},
  doi       = {10.5281/zenodo.8368598},
  url       = {https://github.com/scottprahl/ofiber},
  publisher = {Zenodo}
}

—

License

ofiber is released under the MIT License.

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