What does multimode fiber allow compared to single-mode fiber?

Multimode fiber allows for the use of more types of light sources compared to single-mode fiber. This is primarily due to the larger core diameter of multimode fiber, which can accommodate multiple light paths, or modes. Because of this, multimode fiber typically works well with LED light sources that are less expensive and easier to use in various applications.

In contrast, single-mode fiber has a much smaller core diameter, which is designed to carry light directly down the center of the fiber. This characteristic allows for longer distances and higher bandwidth capabilities, but it requires laser light sources that are more precise and costly. The advantages of multimode fiber make it a favorable choice for shorter distances and environments where budget constraints are a consideration.

In summary, the correct answer reflects the flexibility of multimode fiber in supporting a variety of light sources, making it suitable for a range of applications where cost and installation complexity may be more significant concerns.