Question

What happened If an OF is immersed in water medium, as a result, its acceptance angle

Answer 1

If an optical fiber is immersed in a water medium, its acceptance angle reduces.

• An optical fiber's acceptance angle is defined on the basis of a definite geometric consideration that are the ray optics.
• The fiber's acceptance angle is the maximum angle of a ray that is against the fiber axis hitting the core of the fiber which allows the incident light to be directed by the core.
• Thus, when an optical fiber is immersed in water, it reduces minimally.