Optical Fiber: Numerical Aperture
This interactive simulator explores Fiber: Numerical Aperture in Optics & Light. NA from n_core, n_clad; acceptance angle and bend loss cue. Use the controls to change the scenario; watch the visualization and any graphs or readouts to connect the model with lectures, labs, and homework.
Who it's for: Best once you already know the basic definitions and want to build intuition. Typical context: Optics & Light.
Key terms
- fiber
- numerical
- aperture
- fiber numerical aperture
- optics
- light
How it works
Step-index multimode intuition: larger NA accepts faster off-axis rays but increases dispersion. Single-mode fibers use smaller cores and NA.
More from Optics & Light
Other simulators in this category — or see all 31.
Fiber Bend & TIR Loss
Curved core: outer-wall incidence vs θ_c; tight R leaks (meridional sketch).
Evanescent Wave (TIR)
Beyond θ_c: penetration depth scale in the rarer medium vs λ.
Retina & Diffraction
Order-of-magnitude θ ~ λ/D and cone spacing scale.
Pinhole Camera
Camera obscura: similar triangles, image size h_i = h_o · v/u.
Rainbow in a Droplet
Snell + one internal reflection in a sphere; scan impact height and n.
Rayleigh Sky (blue)
Scattered intensity ∝ λ⁻⁴; compare blue vs red and qualitative sky gradient.