Absorption Loss Calculator

↳

Electronics

Chemical Engineering

Civil

Electrical

Electronics and Instrumentation

Materials Science

Mechanical

Production Engineering

⤿

Transmission Measurements

C-V Actions of Optics Transmission

Fiber Optic Parameters

Optical Detectors

✖Thermal capacity of a material, also known as heat capacity, is a measure of how much heat energy is required to raise the temperature of a given amount of that material by a certain amount.ⓘ Thermal Capacity [C]			+10% -10%
✖Maximum Temperature Rise is the measurement of maximum temperature the calorimeter can measure.ⓘ Maximum Temperature Rise [T_∞]			+10% -10%
✖Optical Power is a measure of the ability of a lens or optical system to converge or diverge light.ⓘ Optical Power [P_opt]			+10% -10%
✖Time constant of a calorimeter refers to the characteristic time it takes for the temperature of the calorimeter to respond to changes in heat flow or heat transfer.ⓘ Time Constant [t_c]			+10% -10%

✖Absorption Loss refers to the attenuation or reduction in the intensity of light as it travels through the optical fiber due to the absorption of photons by the fiber material itself.ⓘ Absorption Loss [α_abs]

⎘ Copy

👎

Formula

✖

Absorption Loss

Formula

`"α"_{"abs"} = ("C"*"T"_{"∞"})/("P"_{"opt"}*"t"_{"c"})`

Example

`"38.98764dB/m"=("164J/K"*"0.65K")/("98e-3W"*"27.9s")`

Calculator

LaTeX

Reset

👍

Download Electronics Formula PDF PDF Image

Absorption Loss Solution

STEP 0: Pre-Calculation Summary

Formula Used

Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant)
α_abs = (C*T_∞)/(P_opt*t_c)
This formula uses 5 Variables

Variables Used

Absorption Loss - (Measured in Decibel per Meter) - Absorption Loss refers to the attenuation or reduction in the intensity of light as it travels through the optical fiber due to the absorption of photons by the fiber material itself.
Thermal Capacity - (Measured in Joule per Kelvin) - Thermal capacity of a material, also known as heat capacity, is a measure of how much heat energy is required to raise the temperature of a given amount of that material by a certain amount.
Maximum Temperature Rise - (Measured in Kelvin) - Maximum Temperature Rise is the measurement of maximum temperature the calorimeter can measure.
Optical Power - (Measured in Watt) - Optical Power is a measure of the ability of a lens or optical system to converge or diverge light.
Time Constant - (Measured in Second) - Time constant of a calorimeter refers to the characteristic time it takes for the temperature of the calorimeter to respond to changes in heat flow or heat transfer.

STEP 1: Convert Input(s) to Base Unit

Thermal Capacity: 164 Joule per Kelvin --> 164 Joule per Kelvin No Conversion Required
Maximum Temperature Rise: 0.65 Kelvin --> 0.65 Kelvin No Conversion Required
Optical Power: 0.098 Watt --> 0.098 Watt No Conversion Required
Time Constant: 27.9 Second --> 27.9 Second No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

α_abs = (C*T_∞)/(P_opt*t_c) --> (164*0.65)/(0.098*27.9)

Evaluating ... ...

α_abs = 38.9876380659791

STEP 3: Convert Result to Output's Unit

38.9876380659791 Decibel per Meter --> No Conversion Required

FINAL ANSWER

38.9876380659791 ≈ 38.98764 Decibel per Meter <-- Absorption Loss

(Calculation completed in 00.004 seconds)

You are here -

Home » Engineering » Electronics » Fiber Optic Transmission » Transmission Measurements » Absorption Loss

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!

< 20 Transmission Measurements Calculators

Time Constant of Calorimeter

Go Time Constant = (Time Instance 2-Time Instance 1)/(ln(Maximum Temperature Rise-Temperature At Time t1)-ln(Maximum Temperature Rise-Temperature At Time t2))

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)

Absorption Loss

Go Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant)

Free Spectral Range of Etalon

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

Scattering Loss

Go Scattering Loss = ((4.343*10^5)/Fiber Length)*(Constant Output Optical Power/Output Optical Power)

Refractive Index Difference

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

Pulse Spreading Time

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

Finesse of Etalon

Go Finesse = (pi*sqrt(Reflectivity))/(1-Reflectivity)

Power Penalty

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

Relative Attenuation

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

Bend Attenuation

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

Absorption Loss Formula

Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant)
α_abs = (C*T_∞)/(P_opt*t_c)

Why is Fiber Absorption Loss is significant?

Absorption Loss is significant because it leads to the loss of optical power as light travels through an optical fiber. This loss limits the distance over which optical signals can be transmitted effectively.

How to Calculate Absorption Loss?

Absorption Loss calculator uses Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant) to calculate the Absorption Loss, Absorption Loss or reduction in the intensity of light as it travels through the optical fiber due to the absorption of photons by the fiber material itself. This is one of the primary mechanisms that contribute to signal loss in optical fibers. Absorption Loss is denoted by α_abs symbol.

How to calculate Absorption Loss using this online calculator? To use this online calculator for Absorption Loss, enter Thermal Capacity (C), Maximum Temperature Rise (T_∞), Optical Power (P_opt) & Time Constant (t_c) and hit the calculate button. Here is how the Absorption Loss calculation can be explained with given input values -> 38.98764 = (164*0.65)/(0.098*27.9).

FAQ

What is Absorption Loss?

Absorption Loss or reduction in the intensity of light as it travels through the optical fiber due to the absorption of photons by the fiber material itself. This is one of the primary mechanisms that contribute to signal loss in optical fibers and is represented as α_abs = (C*T_∞)/(P_opt*t_c) or Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant). Thermal capacity of a material, also known as heat capacity, is a measure of how much heat energy is required to raise the temperature of a given amount of that material by a certain amount, Maximum Temperature Rise is the measurement of maximum temperature the calorimeter can measure, Optical Power is a measure of the ability of a lens or optical system to converge or diverge light & Time constant of a calorimeter refers to the characteristic time it takes for the temperature of the calorimeter to respond to changes in heat flow or heat transfer.

How to calculate Absorption Loss?

Absorption Loss or reduction in the intensity of light as it travels through the optical fiber due to the absorption of photons by the fiber material itself. This is one of the primary mechanisms that contribute to signal loss in optical fibers is calculated using Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant). To calculate Absorption Loss, you need Thermal Capacity (C), Maximum Temperature Rise (T_∞), Optical Power (P_opt) & Time Constant (t_c). With our tool, you need to enter the respective value for Thermal Capacity, Maximum Temperature Rise, Optical Power & Time Constant and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.

Home

FREE PDFs

🔍 Search