Acceptance Angle Calculator

Formula

The formula to calculate the Acceptance Angle (θ) is:

\[ θ = \arcsin(NA) \]

Where:

Acceptance Angle (θ): The maximum angle to the fiber axis at which light can be injected into the fiber and still be guided along the core.
Significance: Ensures efficient coupling of light into the fiber and helps understand the fiber's light propagation characteristics.

Let's say the numerical aperture (NA) is 0.5. Using the formula:

\[ θ = \arcsin(0.5) \approx 30 \]

So, the Acceptance Angle (θ) is approximately 30 degrees.