Construction and working principle of optical fiber

Post on 23-Jan-2018

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Transcript of Construction and working principle of optical fiber

Presented by:

Anisur RahmanID: 1402EEE00033

Department OF EEEManarat International UniversityKhagan, Ashulia, Shavar, Dhaka,

Bangladesh1

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Higher capacity Transmit signals at 100

Gigabits per second speeds

Travel much longer distances down a fiber cable without losing its strength

Less susceptible to interference

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Fiber uses reflection (L) to contain

light inside the core of the fiber

(below).

Total internal reflection (refractive

index should be n2 > n1),

Lange Law

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Core Cladding Coating Strengthening fibers Cable jacket

Standard Telecommunications core diameter:

For SMF is between 8 m and 10 m,

For MMF is between 50 m and 62.5 m.

Diameter of the cladding is 125 m

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Three types of material make up

fiber-optic cables:

Glass Fiber-Optic Cable

Plastic Fiber-Optic Cable

Plastic-Clad Silica (PCS)

Fiber-Optic Cable

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Silica

Fluoride glass

Phosphate glass

Chalcogenide glass

Illustration of the modified chemical

vapor deposition (inside) process7

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Fiber optic systems transmit using

infrared light

invisible to the human eye

It goes further in the optical fiber at those wavelengths.

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Any Question ???

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