The fiber is positioned at the ________ of the lens in order to obtain a collimated beam and to minimize lens-to-lens longitudinal misalignment effects.

Question

Quizplus · Accepted Answer

The fiber is positioned at the focal length of the lens to obtain a collimated beam. This is because when light from a fiber is positioned at the focal point of a lens, the lens can then collimate the light, meaning it will make the light rays parallel. This minimizes lens-to-lens longitudinal misalignment effects by ensuring that the beam remains consistent and focused over distance.

The Fiber Is Positioned at the ________ of the Lens