Method and system for flexible and cost effective dynamic tilt gain equalizer

摘要

Method and system for flattening tilt gain with a digital title gain equalizer (“DTGE”) constructed with a linear tilt optical filter (“LTOF”). In a first embodiment, a DTGE flattens tilt gain with a combination of LTOF and a rotative half-wave plate. In a second embodiment, a DTGE flattens tilt gain with a combination of LTOF and variable Faraday rotators.