Bend Attenuation Calculator

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Transmission Measurements

C-V Actions of Optics Transmission

Fiber Optic Parameters

Optical Detectors

✖Total Power is the measurement of all the power transmitted through the fiber.ⓘ Total Power [P_s]			+10% -10%
✖Small Power is measurement of power transmitted in less quantity by an optic fiber.ⓘ Small Power [P_b]			+10% -10%

✖Bend Attenuation refers to the loss of signal strength or optical power that occurs when light propagating through the fiber encounters a curve or bend.ⓘ Bend Attenuation [α_b]

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Formula

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Bend Attenuation

Formula

`"α"_{"b"} = 10*log10("P"_{"s"}/"P"_{"b"})`

Example

`"1.962946dB/m"=10*log10("5.5W"/"3.5W")`

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Bend Attenuation Solution

STEP 0: Pre-Calculation Summary

Formula Used

Bend Attenuation = 10*log10(Total Power/Small Power)
α_b = 10*log10(P_s/P_b)
This formula uses 1 Functions, 3 Variables

Functions Used

log10 - The common logarithm, also known as the base-10 logarithm or the decimal logarithm, is a mathematical function that is the inverse of the exponential function., log10(Number)

Variables Used

Bend Attenuation - (Measured in Decibel per Meter) - Bend Attenuation refers to the loss of signal strength or optical power that occurs when light propagating through the fiber encounters a curve or bend.
Total Power - (Measured in Watt) - Total Power is the measurement of all the power transmitted through the fiber.
Small Power - (Measured in Watt) - Small Power is measurement of power transmitted in less quantity by an optic fiber.

STEP 1: Convert Input(s) to Base Unit

Total Power: 5.5 Watt --> 5.5 Watt No Conversion Required
Small Power: 3.5 Watt --> 3.5 Watt No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

α_b = 10*log10(P_s/P_b) --> 10*log10(5.5/3.5)

Evaluating ... ...

α_b = 1.96294645143968

STEP 3: Convert Result to Output's Unit

1.96294645143968 Decibel per Meter --> No Conversion Required

FINAL ANSWER

1.96294645143968 ≈ 1.962946 Decibel per Meter <-- Bend Attenuation

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electronics » Fiber Optic Transmission » Transmission Measurements » Bend Attenuation

Credits

Created by Santhosh Yadav

Dayananda Sagar College Of Engineering (DSCE), Banglore

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

Verified by Parminder Singh

Chandigarh University (CU), Punjab

Parminder Singh has verified this Calculator and 600+ more calculators!

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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

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

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

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

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

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

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

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

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

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Receiver Front End Rise Time

Go Received Rise Time = 350/Receiver Bandwidth

Bend Attenuation Formula

Bend Attenuation = 10*log10(Total Power/Small Power)
α_b = 10*log10(P_s/P_b)

Why is Bend Attenuation significant?

Bend attenuation is of significant importance in optical fiber systems because it pertains to the loss of signal strength that occurs when a fiber optic cable is bent or subjected to tight curves. This phenomenon can result in signal degradation and reduced data transmission quality.

How to Calculate Bend Attenuation?

Bend Attenuation calculator uses Bend Attenuation = 10*log10(Total Power/Small Power) to calculate the Bend Attenuation, Bend Attenuation, in the context of optical fibers and optical waveguides, refers to the loss of signal strength or optical power that occurs when light propagating through the fiber encounters a curve or bend. Bend Attenuation is denoted by α_b symbol.

How to calculate Bend Attenuation using this online calculator? To use this online calculator for Bend Attenuation, enter Total Power (P_s) & Small Power (P_b) and hit the calculate button. Here is how the Bend Attenuation calculation can be explained with given input values -> 1.962946 = 10*log10(5.5/3.5).

FAQ

What is Bend Attenuation?

Bend Attenuation, in the context of optical fibers and optical waveguides, refers to the loss of signal strength or optical power that occurs when light propagating through the fiber encounters a curve or bend and is represented as α_b = 10*log10(P_s/P_b) or Bend Attenuation = 10*log10(Total Power/Small Power). Total Power is the measurement of all the power transmitted through the fiber & Small Power is measurement of power transmitted in less quantity by an optic fiber.

How to calculate Bend Attenuation?

Bend Attenuation, in the context of optical fibers and optical waveguides, refers to the loss of signal strength or optical power that occurs when light propagating through the fiber encounters a curve or bend is calculated using Bend Attenuation = 10*log10(Total Power/Small Power). To calculate Bend Attenuation, you need Total Power (P_s) & Small Power (P_b). With our tool, you need to enter the respective value for Total Power & Small Power 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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