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Diameter of Fiber Formula

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Diameter of Fiber is the end to end thickness of the fiber cable. Check FAQs

D = \frac{λ \cdot N M}{π \cdot NA}

D - Diameter of Fiber?λ - Wavelength of Light?N_M - Number of Modes?NA - Numerical Aperture?π - Archimedes' constant?

Diameter of Fiber Example

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Here is how the Diameter of Fiber equation looks like with Values.

Here is how the Diameter of Fiber equation looks like with Units.

Here is how the Diameter of Fiber equation looks like.

25.9025 = \frac{1.55 \cdot 21}{3.1416 \cdot 0.4}

25.9025μm = \frac{1.55μm \cdot 21}{3.1416 \cdot 0.4}

25.9025 = \frac{1.55 \cdot 21}{3.1416 \cdot 0.4}

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Diameter of Fiber Solution

Follow our step by step solution on how to calculate Diameter of Fiber?

FIRST Step Consider the formula

D = \frac{λ \cdot N M}{π \cdot NA}

Next Step Substitute values of Variables

∴

D = \frac{1.55μm \cdot 21}{π \cdot 0.4}

Next Step Substitute values of Constants

∴

D = \frac{1.55μm \cdot 21}{3.1416 \cdot 0.4}

Next Step Convert Units

∴

D = \frac{1.6E-6m \cdot 21}{3.1416 \cdot 0.4}

Next Step Prepare to Evaluate

∴

D = \frac{1.6E-6 \cdot 21}{3.1416 \cdot 0.4}

Next Step Evaluate

∴

D = 2.5902466988206E-05m

Next Step Convert to Output's Unit

∴

D = 25.902466988206μm

LAST Step Rounding Answer

∴

D = 25.9025μm

Diameter of Fiber Formula Elements

Variables

Constants

Diameter of Fiber

Diameter of Fiber is the end to end thickness of the fiber cable.

Symbol: D

Measurement: LengthUnit: μm

Note: Value should be greater than 0.

Formulas to find Diameter of Fiber

Wavelength of Light

Wavelength of Light refers to the distance between two consecutive peaks or troughs of an electromagnetic wave in the optical spectrum.

Symbol: λ

Measurement: LengthUnit: μm

Note: Value should be greater than 0.

Formulas to find Wavelength of Light

Number of Modes

Number of Modes refers to the different spatial propagation paths or patterns that an optical signal can take within a multimode optical fiber.

Symbol: N_M

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Number of Modes

Numerical Aperture

Numerical Aperture is a measure of the light-gathering or light-capturing ability of an optical fiber or an optical system.

Symbol: NA

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Numerical Aperture

Archimedes' constant

Archimedes' constant is a mathematical constant that represents the ratio of the circumference of a circle to its diameter.

Symbol: π

Value: 3.14159265358979323846264338327950288

Other formulas in Fiber Modelling Parameters category

Go Number of Modes using Normalized Frequency

N M = \frac{V^{2}}{2}

Go Power Loss in Fiber

P α = P in \cdot \exp (α p \cdot L)

Go Fiber Attenuation Coefficient

α p = \frac{α}{4.343}

Go Fiber Length

L = V g \cdot T d

How to Evaluate Diameter of Fiber?

Diameter of Fiber evaluator uses Diameter of Fiber = (Wavelength of Light*Number of Modes)/(pi*Numerical Aperture) to evaluate the Diameter of Fiber, The Diameter of Fiber formula is defined as measurements of the fiber's outer diameter after manufacture (off-line) that may be performed using a micrometer or dial gauge. Diameter of Fiber is denoted by D symbol.

How to evaluate Diameter of Fiber using this online evaluator? To use this online evaluator for Diameter of Fiber, enter Wavelength of Light (λ), Number of Modes (N_M) & Numerical Aperture (NA) and hit the calculate button.

FAQs on Diameter of Fiber

What is the formula to find Diameter of Fiber?

The formula of Diameter of Fiber is expressed as Diameter of Fiber = (Wavelength of Light*Number of Modes)/(pi*Numerical Aperture). Here is an example- 2.6E+7 = (1.55E-06*21)/(pi*0.4).

How to calculate Diameter of Fiber?

With Wavelength of Light (λ), Number of Modes (N_M) & Numerical Aperture (NA) we can find Diameter of Fiber using the formula - Diameter of Fiber = (Wavelength of Light*Number of Modes)/(pi*Numerical Aperture). This formula also uses Archimedes' constant .

Can the Diameter of Fiber be negative?

No, the Diameter of Fiber, measured in Length cannot be negative.

Which unit is used to measure Diameter of Fiber?

Diameter of Fiber is usually measured using the Micrometer[μm] for Length. Meter[μm], Millimeter[μm], Kilometer[μm] are the few other units in which Diameter of Fiber can be measured.

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Diameter of Fiber Formula

Diameter of Fiber Example

Diameter of Fiber Solution

Diameter of Fiber Formula Elements

Other formulas in Fiber Modelling Parameters category

How to Evaluate Diameter of Fiber?

FAQs on Diameter of Fiber

Variable Name