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ASE Noise Power Formula

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ASE Noise Power refers to the noise effect in an optical amplifier, which arises from a quantum effect known as spontaneous emission. Check FAQs

P ASE = m \cdot n sp \cdot (G s - 1) \cdot ([hP] \cdot f) \cdot B

P_ASE - ASE Noise Power?m - Mode Number?n_sp - Spontaneous Emission Factor?G_s - Single Pass Gain?f - Frequency Of Incident Light?B - Post Detection Bandwidth?[hP] - Planck constant?

ASE Noise Power Example

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Here is how the ASE Noise Power equation looks like with Values.

Here is how the ASE Noise Power equation looks like with Units.

Here is how the ASE Noise Power equation looks like.

0.0004 = 4.1 \cdot 1000 \cdot (1000.01 - 1) \cdot (6.6E-34 \cdot 20) \cdot 8E+6

0.0004fW = 4.1 \cdot 1000 \cdot (1000.01 - 1) \cdot (6.6E-34 \cdot 20Hz) \cdot 8E+6Hz

0.0004 = 4.1 \cdot 1000 \cdot (1000.01 - 1) \cdot (6.6E-34 \cdot 20) \cdot 8E+6

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ASE Noise Power Solution

Follow our step by step solution on how to calculate ASE Noise Power?

FIRST Step Consider the formula

P ASE = m \cdot n sp \cdot (G s - 1) \cdot ([hP] \cdot f) \cdot B

Next Step Substitute values of Variables

∴

P ASE = 4.1 \cdot 1000 \cdot (1000.01 - 1) \cdot ([hP] \cdot 20Hz) \cdot 8E+6Hz

Next Step Substitute values of Constants

∴

P ASE = 4.1 \cdot 1000 \cdot (1000.01 - 1) \cdot (6.6E-34 \cdot 20Hz) \cdot 8E+6Hz

Next Step Prepare to Evaluate

∴

P ASE = 4.1 \cdot 1000 \cdot (1000.01 - 1) \cdot (6.6E-34 \cdot 20) \cdot 8E+6

Next Step Evaluate

∴

P ASE = 4.34239871131322E-19W

Next Step Convert to Output's Unit

∴

P ASE = 0.000434239871131322fW

LAST Step Rounding Answer

∴

P ASE = 0.0004fW

ASE Noise Power Formula Elements

Variables

Constants

ASE Noise Power

ASE Noise Power refers to the noise effect in an optical amplifier, which arises from a quantum effect known as spontaneous emission.

Symbol: P_ASE

Measurement: PowerUnit: fW

Note: Value should be greater than 0.

Formulas to find ASE Noise Power

Mode Number

Mode Number in an optical fiber refers to the number of paths in which light can propagate.

Symbol: m

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Mode Number

Spontaneous Emission Factor

Spontaneous Emission Factor is defined as the ratio of the rate of spontaneous emission coupled into the laser modes to the total spontaneous emission rate.

Symbol: n_sp

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Spontaneous Emission Factor

Single Pass Gain

Single Pass Gain refers to the fractional increase in energy as light makes a single pass through a medium.

Symbol: G_s

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Single Pass Gain

Frequency Of Incident Light

Frequency of incident light is a measure of how many cycles (oscillations) of the electromagnetic wave occur per second.

Symbol: f

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Frequency Of Incident Light

Post Detection Bandwidth

Post Detection Bandwidth refers to the bandwidth of the electrical signal after it has been detected and converted from an optical signal.

Symbol: B

Measurement: FrequencyUnit: Hz

Note: Value should be greater than 0.

Formulas to find Post Detection Bandwidth

Planck constant

Planck constant is a fundamental universal constant that defines the quantum nature of energy and relates the energy of a photon to its frequency.

Symbol: [hP]

Value: 6.626070040E-34

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How to Evaluate ASE Noise Power?

ASE Noise Power evaluator uses ASE Noise Power = Mode Number*Spontaneous Emission Factor*(Single Pass Gain-1)*([hP]*Frequency Of Incident Light)*Post Detection Bandwidth to evaluate the ASE Noise Power, ASE Noise Power refers to the noise effect in an optical amplifier, which arises from a quantum effect known as spontaneous emission. ASE is usually an unwanted effect. ASE Noise Power is denoted by P_ASE symbol.

How to evaluate ASE Noise Power using this online evaluator? To use this online evaluator for ASE Noise Power, enter Mode Number (m), Spontaneous Emission Factor (n_sp), Single Pass Gain (G_s), Frequency Of Incident Light (f) & Post Detection Bandwidth (B) and hit the calculate button.

FAQs on ASE Noise Power

What is the formula to find ASE Noise Power?

The formula of ASE Noise Power is expressed as ASE Noise Power = Mode Number*Spontaneous Emission Factor*(Single Pass Gain-1)*([hP]*Frequency Of Incident Light)*Post Detection Bandwidth. Here is an example- 4.3E+11 = 4.1*1000*(1000.01-1)*([hP]*20)*8000000.

How to calculate ASE Noise Power?

With Mode Number (m), Spontaneous Emission Factor (n_sp), Single Pass Gain (G_s), Frequency Of Incident Light (f) & Post Detection Bandwidth (B) we can find ASE Noise Power using the formula - ASE Noise Power = Mode Number*Spontaneous Emission Factor*(Single Pass Gain-1)*([hP]*Frequency Of Incident Light)*Post Detection Bandwidth. This formula also uses Planck constant .

Can the ASE Noise Power be negative?

No, the ASE Noise Power, measured in Power cannot be negative.

Which unit is used to measure ASE Noise Power?

ASE Noise Power is usually measured using the Femtowatt[fW] for Power. Watt[fW], Kilowatt[fW], Milliwatt[fW] are the few other units in which ASE Noise Power can be measured.

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ASE Noise Power Formula

ASE Noise Power Example

ASE Noise Power Solution

ASE Noise Power Formula Elements

Other formulas in C V Actions of Optics Transmission category

How to Evaluate ASE Noise Power?

FAQs on ASE Noise Power

Variable Name