Physics A-Level
Optical fibres
What Optical fibres means in Physics A-Level, as defined for AQA.
Definition of Optical fibres
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Reference: AQA
Light entering within the acceptance angle strikes the core–cladding interface at an angle greater than the critical angle, so it reflects repeatedly and travels along the fibre with little loss.
Topics that use Optical fibres
- Fibre optics and endoscopy (A-level only) (AQA A-Level)
Related terms
- Coherent fibre bundle
- Internal imaging
- Medical imaging and endoscopy
- Objective lens
- Total internal reflection
- Critical angle and refractive index
- Non-coherent fibre bundle
Using Optical fibres in the exam
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