ACOUSTO-OPTIC GAIN EQUALIZATION FILTER AND GAIN EQUALIZATION SYSTEM

摘要

A gain equalization acousto-optic filter according to the present invention includes a first plurality of series connected AOTF devices (208, 210, 212, 214) having an optical input that is coupled to an input of the gain equalization acousto-optic filter and an optical output that is coupled to an output of the gain equalization filter. A second plurality of series connected AOTF devices (216, 218, 220, 222) having an optical input that is coupled to the input of the gain equalization acousto-optic filter and an optical output that is coupled to the output of the gain equalization filter. Each AOTF device in the first and the second plurality of series connected AOTF devices comprises a separate RF signal input (225) for receiving an RF signal having a unique frequency.