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Absorption Loss Formula

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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. Check FAQs

α abs = \frac{C \cdot T ∞}{P opt \cdot t c}

α_abs - Absorption Loss?C - Thermal Capacity?T_∞ - Maximum Temperature Rise?P_opt - Optical Power?t_c - Time Constant?

Absorption Loss Example

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Here is how the Absorption Loss equation looks like with Values.

Here is how the Absorption Loss equation looks like with Units.

Here is how the Absorption Loss equation looks like.

38.9876 = \frac{164 \cdot 0.65}{0.098 \cdot 27.9}

38.9876dB/m = \frac{164J/K \cdot 0.65K}{0.098W \cdot 27.9s}

38.9876 = \frac{164 \cdot 0.65}{0.098 \cdot 27.9}

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Absorption Loss Solution

Follow our step by step solution on how to calculate Absorption Loss?

FIRST Step Consider the formula

α abs = \frac{C \cdot T ∞}{P opt \cdot t c}

Next Step Substitute values of Variables

∴

α abs = \frac{164J/K \cdot 0.65K}{0.098W \cdot 27.9s}

Next Step Prepare to Evaluate

∴

α abs = \frac{164 \cdot 0.65}{0.098 \cdot 27.9}

Next Step Evaluate

∴

α abs = 38.9876380659791dB/m

LAST Step Rounding Answer

∴

α abs = 38.9876dB/m

Absorption Loss Formula Elements

Variables

Absorption Loss

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.

Symbol: α_abs

Measurement: AttenuationUnit: dB/m

Note: Value should be greater than 0.

Formulas to find Absorption Loss

Thermal Capacity

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.

Symbol: C

Measurement: Heat CapacityUnit: J/K

Note: Value should be greater than 0.

Formulas to find Thermal Capacity

Maximum Temperature Rise

Maximum Temperature Rise is the measurement of maximum temperature the calorimeter can measure.

Symbol: T_∞

Measurement: TemperatureUnit: K

Note: Value should be greater than 0.

Formulas to find Maximum Temperature Rise

Optical Power

Optical Power is a measure of the ability of a lens or optical system to converge or diverge light.

Symbol: P_opt

Measurement: PowerUnit: W

Note: Value should be greater than 0.

Formulas to find Optical Power

Time Constant

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.

Symbol: t_c

Measurement: TimeUnit: s

Note: Value should be greater than 0.

Formulas to find Time Constant

Other formulas in Transmission Measurements category

Go Optical Attenuation

α dB = \frac{10}{L 1 - L 2} \cdot \log 10 (\frac{V 2}{V 1})

Go Time Constant of Calorimeter

t c = \frac{t 2 - t 1}{\ln (T ∞ - T t1) - \ln (T ∞ - T t2)}

Go Scattering Loss

α sc = (\frac{4.343 \cdot 10^{5}}{l}) \cdot (\frac{V sc}{V opt})

Go 3dB Pulse Broadening

τ 3dB = \frac{\sqrt{{τ o}^{2} - {τ i}^{2}}}{L 1}

How to Evaluate Absorption Loss?

Absorption Loss evaluator uses Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant) to evaluate 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 evaluate Absorption Loss using this online evaluator? To use this online evaluator for Absorption Loss, enter Thermal Capacity (C), Maximum Temperature Rise (T_∞), Optical Power (P_opt) & Time Constant (t_c) and hit the calculate button.

FAQs on Absorption Loss

What is the formula to find Absorption Loss?

The formula of Absorption Loss is expressed as Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant). Here is an example- 38.98764 = (164*0.65)/(0.098*27.9).

How to calculate Absorption Loss?

With Thermal Capacity (C), Maximum Temperature Rise (T_∞), Optical Power (P_opt) & Time Constant (t_c) we can find Absorption Loss using the formula - Absorption Loss = (Thermal Capacity*Maximum Temperature Rise)/(Optical Power*Time Constant).

Can the Absorption Loss be negative?

No, the Absorption Loss, measured in Attenuation cannot be negative.

Which unit is used to measure Absorption Loss?

Absorption Loss is usually measured using the Decibel per Meter[dB/m] for Attenuation. Neper per Meter[dB/m], Decibel per Kilometer[dB/m] are the few other units in which Absorption Loss can be measured.

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Absorption Loss Formula

Absorption Loss Example

Absorption Loss Solution

Absorption Loss Formula Elements

Other formulas in Transmission Measurements category

How to Evaluate Absorption Loss?

FAQs on Absorption Loss

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