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The Nature of Light and the Laws of Geometric Optics
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Section 35.8

Slide 58

Fiber Optics

Fiber Optics

An application of internal reflection

Plastic or glass rods are used to “pipe” light from one place to another.

Applications include:

Medical examination of internal organs

Telecommunications

Section 35.8

Slide 59

Construction of an Optical Fiber

Construction of an Optical Fiber

The transparent core is surrounded by cladding.

The cladding has a lower n than the core.

This allows the light in the core to experience total internal reflection.

The combination is surrounded by the jacket.

Section 35.8

Slide 60

Fiber Optics, cont.

Fiber Optics, cont.

A flexible light pipe is called an optical fiber.

A bundle of parallel fibers (shown) can be used to construct an optical transmission line.

Section 35.8

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