Faraday anomalous dispersion optical filter

The function and requirements of optical filter for different systems are introduced, whereby the distinctions of atomic optical filter in comparison to the traditional optical filter are presented and the development of atomic filter is summarized. Furthermore, a general model for calculating the transmittance of Faraday anomalous dispersion optical filter (FADOF) is presented, which is applicable for both passive and active working modes of FADOF. It shows that the theoretical calculation match the experimental results perfectly. Also, we report the progress on the theory and experiment research of passive and active FADOF in our group.