Absoultly there is also temperature dependence of the Faraday rotation when shift to other wavelengths. However, the transparency window of this material is in the 1550 nm wavelength range. When moving to shorter wavelengths, the absorption of this material increases sharply, making them less practical for photonic device applications.
demonstrate a temperature stable magneto-optical material Dy2Ce1Fe5O12 for silicon integrated nonreciprocal photonic device applications.