Physics A-Level
Step-index optical fibre
What Step-index optical fibre means in Physics A-Level, as defined for AQA.
Definition of Step-index optical fibre
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Reference: AQA
A core of higher refractive index surrounded by cladding of lower refractive index, with an abrupt change of index at the core–cladding boundary.
Topics that use Step-index optical fibre
- Refraction at a plane surface (AQA A-Level)
Related terms
- Absorption
- Acceptance angle
- Critical angle
- Material dispersion
- Modal dispersion
- Pulse broadening
- Total internal reflection
Using Step-index optical fibre in the exam
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