What is the typical characteristic of a collimated laser beam after exiting a fiber?

A collimated laser beam is characterized by its ability to maintain a consistent beam width over a distance. When a laser beam exits a fiber, it is typically collimated, which means that the light is emitted in a parallel manner. This parallel configuration is vital for many applications, including medical and industrial uses, as it allows the focused delivery of energy to a specific target without the significant spreading or divergence that would occur with a non-collimated beam.

A divergent beam would spread out, which is not characteristic of a collimated beam. Similarly, a converging beam would indicate that the light is coming together towards a point, which contradicts the definition of collimation. The term "focus point" pertains to the area where light converges, which again is not what we would expect from a collimated beam exiting a fiber.

Therefore, the defining feature of a collimated laser beam, particularly after passing through a fiber, is its parallel nature, making it suitable for a variety of precise applications.