A magneto-optical bandpass filter composed of a set of Faraday rotator
s with polarizers inserted between them is proposed, A material analys
is for the construction of the filter is performed, and the behavior o
f the filter is investigated for the most promising magneto-optical ma
terials. It is shown that bandwidths in the range of a few nanometers
to tens of nanometers may be achieved depending on the material used i
n the filter construction.