Stark anomalous dispersion optical filter for doubled Nd:YLF lasers

The Stark anomalous dispersion optical filter is a wide-frequency-tunable ultra-narrow bandwidth optical filter. The first theoretical investigation of this filter, which matched wavelength with doubled Nd:YLF lasers for deepspace laser communications, is reported. The results show that the filter may provide about 86% transmission, 1.6 GHz bandwidth, 3 GHz noise equivalent bandwidth, and wide frequency tuning range.