High resolution fiber-optic attenuation beam control modules are based on unique parallel, serial, and serial-parallel optical controls architectures using a mixed control mode spatially multiplexed processing techniques with actively controlled macro-pixels. In the various embodiments, a system includes a processing unit configured to receive the digital signal content and the data, and an encoder configured to embed the data into the digital signal content. A gas to be detected is introduced in a chamber and the first cell is responsible for discharging and changing oxygen from and into the chamber.