The EOMS passively detects and converts in-band radiation into what?

The reason that the correct answer is electrical signals is that the EOMS (Electro-Optic Measurement System) is designed specifically to detect in-band radiation and convert it into an electronic format that can be analyzed and processed. This electrical output is essential for further analysis, integration into electronic systems, or display on monitoring equipment.

In-band radiation typically refers to electromagnetic waves within a certain frequency range that the system is designed to monitor. When these waves interact with the sensing components of the EOMS, they induce changes that can be measured and converted into electrical signals. This conversion enables the systems to interpret the information carried by the radiation, allowing for applications in telecommunications, signal processing, and various forms of remote sensing.

While the other types of signals—optical, mechanical, and acoustic—are important in other contexts, they do not reflect the primary function of the EOMS with respect to in-band radiation. Optical signals pertain to light transmission and processing, mechanical signals deal with physical movements, and acoustic signals relate to sound waves, none of which align with the electrical nature of the EOMS outputs derived from in-band radiation detection.