What is a typical application for single-mode fiber?

Single-mode fiber is designed for long-distance transmission of data and is a preferred choice for applications that require high bandwidth over extended distances, such as long-haul telecommunications. This is because single-mode fiber has a smaller core diameter, allowing only one mode of light to propagate, which minimizes signal attenuation and distortion.

In long-haul telecommunications, single-mode fiber can efficiently carry signals over many kilometers, making it ideal for connecting cities and regions. This capability is particularly important for telecommunications companies that need to maintain high-quality service across vast networks.

The other options, while relevant to fiber optics, do not leverage the unique strengths of single-mode fiber in the same way. Indoor network connections, interconnecting electronics, and short-range data transfer typically utilize multimode fiber, as it is more cost-effective for shorter distances and allows multiple light paths, making it suitable for environments like data centers or office buildings.