Attenuation mechanism effect on filter shape in channelized dynamic spectral equalizers.
Free-space-based channelized dynamic spectral equalizers are theoretically investigated by solving the temporal-frequency-dependent power-coupling integral for commonly used active device technologies: liquid-crystal modulators, tilting micromirror arrays, and deformable gratings. Channel-filter characteristics, such as bandwidth and interchannel transition, are found to depend on the different attenuation mechanisms provided by the active devices. Such information is required for choosing the proper device parameters in designing channel equalizers and similar free-space spatially dispersed subsystems.
Oh
Sang-Hyun
SH
Agere Systems, Optical MEMS Research and Development, 4 Connell Drive, Berkeley Heights, New Jersey 07922, USA.
Marom
Dan M
DM