  We study plane-fronted electrovacuum waves in metric-affine gravity (MAG)
with cosmological constant in the triplet ansatz sector of the theory. Their
field strengths are, on the gravitational side, curvature
$R_{\alpha}{}^{\beta}$, nonmetricity $Q_{\alpha\beta}$, torsion $T^{\alpha}$
and, on the matter side, the electromagnetic field strength $F$. Here we
basically present, after a short introduction into MAG and its triplet subcase,
the results of earlier joint work with Garcia, Macias, and Socorro. Our
solution is based on an exact solution of Ozsvath, Robinson, and Rozga
describing type N gravitational fields in general relativity as coupled to
electromagnetic null-fields.
