Living Physics Portal: Bending and Attenuation - Fiber Optics in Medicine

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Bending and Attenuation - Fiber Optics in Medicine - Section 4 of 6

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Part of Fiber Optics in Medicine - Six Section Module

Part 5 of 8

Highlights: Students investigate how light bends in an optical fiber. The body is full of twists and turns!

Abstract: Section 4 of the Fiber Optics in Medicine Module investigates the critical bend radius of an optical fiber, and attenuation of light in an optical fiber due to bending of the fiber. This is important to the use of endoscopes due to twists and turns in the human body. Endoscopes must provide a clear image with enough intensity to be useful for medical procedures. Students use hands-on activities to investigate the amount of light that is lost when bending an optical fiber. The effect of critical bend radius and multiple loops on transmitted light is investigated. Students use an unjacketed optical fiber with a large diameter.

Resource Types: In-class activity, Lecture materials, Lab, Demonstration, Instructor supplement, Restricted access, Homework, Student reading

Authors:

Nancy Donaldson

Rockhurst University

Charles Gosselin

Rockhurst University

TOPICS

Physics Topics:

Optics > Geometrical Optics > Optical Instruments, Refraction - Flat Surfaces, Total Internal Reflection

Optics > Modern Optics > Fiber Optics

Life Sciences Topics:

Cross-cutting Biological Concepts > Structure/Function Relationships > Visual

Medical Applications > Biomedical Imaging > Optical Imaging

Math Topics:

Algebra; Geometry; Trigonometry

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Fiber Optics in Medicine - Six Section Module > Bending and Attenuation - Fiber Optics in Medicine - Section 4 of 6

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License: CC: BY-NC-SA - Attribution, No Commercial uses and Share Alike. Derivative works must have the same license

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