.. DO NOT EDIT.
.. THIS FILE WAS AUTOMATICALLY GENERATED BY SPHINX-GALLERY.
.. TO MAKE CHANGES, EDIT THE SOURCE PYTHON FILE:
.. "gallery/basic/plot_U_vs_V.py"
.. LINE NUMBERS ARE GIVEN BELOW.

.. only:: html

    .. note::
        :class: sphx-glr-download-link-note

        :ref:`Go to the end <sphx_glr_download_gallery_basic_plot_U_vs_V.py>`
        to download the full example code

.. rst-class:: sphx-glr-example-title

.. _sphx_glr_gallery_basic_plot_U_vs_V.py:


Figure 3.13 of Jacques Bures
============================

.. GENERATED FROM PYTHON SOURCE LINES 8-10

Imports
~~~~~~~

.. GENERATED FROM PYTHON SOURCE LINES 10-49

.. code-block:: Python

    import numpy

    from PyFiberModes.fiber import get_fiber_from_delta_and_V0
    from PyFiberModes import HE11, TE01, TM01, HE21, EH11, HE31, HE12, HE22, HE32
    from PyFiberModes.fundamentals import get_U_parameter
    import matplotlib.pyplot as plt

    figure, ax = plt.subplots(1, 1)

    ax.set(
        title='Mode fields for vectorial mode if x-direction',
        xlabel='V number',
        ylabel='U number',
    )

    V0_list = numpy.linspace(0.5, 12, 150)

    for mode in [HE11, TE01, TM01, HE21, EH11, HE31, HE12, HE22, HE32]:
        data_list = []
        for V0 in V0_list:
            fiber = get_fiber_from_delta_and_V0(
                delta=0.3,
                V0=V0,
                wavelength=1310e-9
            )

            data = get_U_parameter(
                fiber=fiber,
                mode=mode,
                wavelength=fiber.wavelength
            )

            data_list.append(data)

        ax.plot(V0_list, data_list, label=str(mode), linewidth=1.5)

    ax.plot(V0_list, V0_list, linewidth=2, label='U = V')

    _ = figure.show()



.. image-sg:: /gallery/basic/images/sphx_glr_plot_U_vs_V_001.png
   :alt: Mode fields for vectorial mode if x-direction
   :srcset: /gallery/basic/images/sphx_glr_plot_U_vs_V_001.png
   :class: sphx-glr-single-img






.. rst-class:: sphx-glr-timing

   **Total running time of the script:** (0 minutes 5.628 seconds)


.. _sphx_glr_download_gallery_basic_plot_U_vs_V.py:

.. only:: html

  .. container:: sphx-glr-footer sphx-glr-footer-example

    .. container:: sphx-glr-download sphx-glr-download-jupyter

      :download:`Download Jupyter notebook: plot_U_vs_V.ipynb <plot_U_vs_V.ipynb>`

    .. container:: sphx-glr-download sphx-glr-download-python

      :download:`Download Python source code: plot_U_vs_V.py <plot_U_vs_V.py>`


.. only:: html

 .. rst-class:: sphx-glr-signature

    `Gallery generated by Sphinx-Gallery <https://sphinx-gallery.github.io>`_