Fiber Rise Time Calculator

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Transmission Measurements

C-V Actions of Optics Transmission

Fiber Optic Parameters

Optical Detectors

✖Chromatic Dispersion Coefficient represents the type of fiber being used.ⓘ Chromatic Dispersion Coefficient [D_cd]			+10% -10%
✖Length Of Cable is the usually the measurement used to measure how long the cable is.ⓘ Length Of Cable [L₁]			+10% -10%
✖Half Power Spectral Width is a measure of the bandwidth or spectral width of a light source.ⓘ Half Power Spectral Width [Δλ]			+10% -10%

✖Fiber Rise Time of a signal is essentially the time it takes for the signal to transition from a lower voltage level to a higher voltage level.ⓘ Fiber Rise Time [t_cd]

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Formula

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Fiber Rise Time

Formula

`"t"_{"cd"} = "modulus"("D"_{"cd"})*"L"_{"1"}*"Δλ"`

Example

`"319.1076s"="modulus"("13.23")*"2.01m"*"12m"`

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Fiber Rise Time Solution

STEP 0: Pre-Calculation Summary

Formula Used

Fiber Rise Time = modulus(Chromatic Dispersion Coefficient)*Length Of Cable*Half Power Spectral Width
t_cd = modulus(D_cd)*L₁*Δλ
This formula uses 1 Functions, 4 Variables

Functions Used

modulus - Modulus of a number is the remainder when that number is divided by another number., modulus

Variables Used

Fiber Rise Time - (Measured in Second) - Fiber Rise Time of a signal is essentially the time it takes for the signal to transition from a lower voltage level to a higher voltage level.
Chromatic Dispersion Coefficient - Chromatic Dispersion Coefficient represents the type of fiber being used.
Length Of Cable - (Measured in Meter) - Length Of Cable is the usually the measurement used to measure how long the cable is.
Half Power Spectral Width - (Measured in Meter) - Half Power Spectral Width is a measure of the bandwidth or spectral width of a light source.

STEP 1: Convert Input(s) to Base Unit

Chromatic Dispersion Coefficient: 13.23 --> No Conversion Required
Length Of Cable: 2.01 Meter --> 2.01 Meter No Conversion Required
Half Power Spectral Width: 12 Meter --> 12 Meter No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

t_cd = modulus(D_cd)*L₁*Δλ --> modulus(13.23)*2.01*12

Evaluating ... ...

t_cd = 319.1076

STEP 3: Convert Result to Output's Unit

319.1076 Second --> No Conversion Required

FINAL ANSWER

319.1076 Second <-- Fiber Rise Time

(Calculation completed in 00.020 seconds)

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Credits

Created by Santhosh Yadav

Dayananda Sagar College Of Engineering (DSCE), Banglore

Santhosh Yadav has created this Calculator and 50+ more calculators!

Verified by Ritwik Tripathi

Vellore Institute of Technology (VIT Vellore), Vellore

Ritwik Tripathi has verified this Calculator and 100+ more calculators!

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Optical Attenuation

Go Attenuation Per Unit Length = 10/(Length Of Cable-Cut Length)*log10(Photoreceiver Voltage At Cut Length/Photoreceiver Voltage At Full Length)

Optical Return Loss

Go Optical Return Loss = 10*log10((Output Power*Reflected Power)/(Source Power*(Power at Port 2-Power at Port 4)))

Guided Modes Number

Go Guided Modes Number = ((pi*Radius of Core)/Wavelength of Light)^2*(Refractive Index of Core^2-Refractive Index of Cladding^2)

Bit Error Rate given SNR

Go Bit Error Rate = (1/sqrt(2*pi))*(exp(-Signal to Noise Ratio of Photodetector^2/2))/Signal to Noise Ratio of Photodetector

Fiber Rise Time

Go Fiber Rise Time = modulus(Chromatic Dispersion Coefficient)*Length Of Cable*Half Power Spectral Width

Ideal Etalon Transmission

Go Transmission of Etalon = (1+(4*Reflectivity)/(1-Reflectivity)^2*sin(Single-Pass Phase Shift/2)^2)^-1

3dB Pulse Broadening

Go 3dB Pulse Broadening = sqrt(Optical Output Pulse^2-Optical Input Pulse^2)/(Length Of Cable)

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Go Free Spectral Range Wavelength = Wavelength of Light^2/(2*Refractive Index of Core*Slab Thickness)

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Refractive Index Difference

Go Difference Refractive Index = (Fringe Displacements Number*Wavelength of Light)/Slab Thickness

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Go Pulse Spreading Time = Polarisation Mode Dispersion Coefficient*sqrt(Length Of Cable)

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Power Penalty

Go Power Penalty = -10*log10((Extinction Ratio-1)/(Extinction Ratio+1))

Relative Attenuation

Go Relative Attenuation = 10*log10(Total Power/Spectral Power)

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Go Bend Attenuation = 10*log10(Total Power/Small Power)

Modal Rise Time

Go Modal Rise Time = (440*Length Of Cable)/Modal Dispersion Bandwidth

Optical Modulation Index

Go Modulation Index = Incident Power/Optical Power at Bias Current

Receiver Front End Rise Time

Go Received Rise Time = 350/Receiver Bandwidth

Fiber Rise Time Formula

Fiber Rise Time = modulus(Chromatic Dispersion Coefficient)*Length Of Cable*Half Power Spectral Width
t_cd = modulus(D_cd)*L₁*Δλ

Why is Fiber Rise Time important?

The rise time resulting from chromatic dispersion in optical fibers is of significant importance in high-speed data transmission systems. Chromatic dispersion occurs due to the fact that different wavelengths of light travel at slightly different speeds through the fiber, causing the signal to spread out in time.

How to Calculate Fiber Rise Time?

Fiber Rise Time calculator uses Fiber Rise Time = modulus(Chromatic Dispersion Coefficient)*Length Of Cable*Half Power Spectral Width to calculate the Fiber Rise Time, Fiber Rise Time is the time measured between the source signal transition from a lower voltage level (e.g., 10% of the maximum amplitude) to a higher voltage level (e.g., 90% of the maximum amplitude). Fiber Rise Time is denoted by t_cd symbol.

How to calculate Fiber Rise Time using this online calculator? To use this online calculator for Fiber Rise Time, enter Chromatic Dispersion Coefficient (D_cd), Length Of Cable (L₁) & Half Power Spectral Width (Δλ) and hit the calculate button. Here is how the Fiber Rise Time calculation can be explained with given input values -> 319.1076 = modulus(13.23)*2.01*12.

FAQ

What is Fiber Rise Time?

Fiber Rise Time is the time measured between the source signal transition from a lower voltage level (e.g., 10% of the maximum amplitude) to a higher voltage level (e.g., 90% of the maximum amplitude) and is represented as t_cd = modulus(D_cd)*L₁*Δλ or Fiber Rise Time = modulus(Chromatic Dispersion Coefficient)*Length Of Cable*Half Power Spectral Width. Chromatic Dispersion Coefficient represents the type of fiber being used, Length Of Cable is the usually the measurement used to measure how long the cable is & Half Power Spectral Width is a measure of the bandwidth or spectral width of a light source.

How to calculate Fiber Rise Time?

Fiber Rise Time is the time measured between the source signal transition from a lower voltage level (e.g., 10% of the maximum amplitude) to a higher voltage level (e.g., 90% of the maximum amplitude) is calculated using Fiber Rise Time = modulus(Chromatic Dispersion Coefficient)*Length Of Cable*Half Power Spectral Width. To calculate Fiber Rise Time, you need Chromatic Dispersion Coefficient (D_cd), Length Of Cable (L₁) & Half Power Spectral Width (Δλ). With our tool, you need to enter the respective value for Chromatic Dispersion Coefficient, Length Of Cable & Half Power Spectral Width and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

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