Fiber Length Formula

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Length of Fiber is defined as the total length of fiber cable. Check FAQs
L=VgTd
L - Length of Fiber?Vg - Group Velocity?Td - Group Delay?

Fiber Length Example

With values
With units
Only example

Here is how the Fiber Length equation looks like with Values.

Here is how the Fiber Length equation looks like with Units.

Here is how the Fiber Length equation looks like.

1.25Edit=2.5E+8Edit5E-9Edit
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Fiber Length Solution

Follow our step by step solution on how to calculate Fiber Length?

FIRST Step Consider the formula
L=VgTd
Next Step Substitute values of Variables
L=2.5E+8m/s5E-9s
Next Step Prepare to Evaluate
L=2.5E+85E-9
LAST Step Evaluate
L=1.25m

Fiber Length Formula Elements

Variables
Length of Fiber
Length of Fiber is defined as the total length of fiber cable.
Symbol: L
Measurement: LengthUnit: m
Note: Value should be greater than 0.
Group Velocity
Group Velocity is the velocity with which the overall envelope shape of the wave's amplitudes; known as the modulation.
Symbol: Vg
Measurement: SpeedUnit: m/s
Note: Value should be greater than 0.
Group Delay
Group delay is a measurement of the time taken by the modulated signal to get through the system.
Symbol: Td
Measurement: TimeUnit: s
Note: Value can be positive or negative.

Other formulas in Fiber Modelling Parameters category

​Go Number of Modes using Normalized Frequency
NM=V22
​Go Diameter of Fiber
D=λNMπNA
​Go Power Loss in Fiber
Pα=Pinexp(αpL)
​Go Fiber Attenuation Coefficient
αp=α4.343

How to Evaluate Fiber Length?

Fiber Length evaluator uses Length of Fiber = Group Velocity*Group Delay to evaluate the Length of Fiber, The Fiber Length formula is defined as the length of fiber cable that is being used to propagate the signal. Length of Fiber is denoted by L symbol.

How to evaluate Fiber Length using this online evaluator? To use this online evaluator for Fiber Length, enter Group Velocity (Vg) & Group Delay (Td) and hit the calculate button.

FAQs on Fiber Length

What is the formula to find Fiber Length?
The formula of Fiber Length is expressed as Length of Fiber = Group Velocity*Group Delay. Here is an example- 1.25 = 250000000*5E-09.
How to calculate Fiber Length?
With Group Velocity (Vg) & Group Delay (Td) we can find Fiber Length using the formula - Length of Fiber = Group Velocity*Group Delay.
Can the Fiber Length be negative?
No, the Fiber Length, measured in Length cannot be negative.
Which unit is used to measure Fiber Length?
Fiber Length is usually measured using the Meter[m] for Length. Millimeter[m], Kilometer[m], Decimeter[m] are the few other units in which Fiber Length can be measured.
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