Noise Figure given ASE Noise Power Calculator

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C-V Actions of Optics Transmission

Fiber Optic Parameters

Optical Detectors

Transmission Measurements

✖ASE Noise Power refers to the noise effect in an optical amplifier, which arises from a quantum effect known as spontaneous emission.ⓘ ASE Noise Power [P_ASE]			+10% -10%
✖Single Pass Gain refers to the fractional increase in energy as light makes a single pass through a medium.ⓘ Single Pass Gain [G_s]			+10% -10%
✖Frequency of incident light is a measure of how many cycles (oscillations) of the electromagnetic wave occur per second.ⓘ Frequency Of Incident Light [f]			+10% -10%
✖Post Detection Bandwidth refers to the bandwidth of the electrical signal after it has been detected and converted from an optical signal.ⓘ Post Detection Bandwidth [B]			+10% -10%

✖The Noise Figure in fiber optics is a measure of how much excess noise an optical amplifier adds to the signal.ⓘ Noise Figure given ASE Noise Power [F_n]

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Formula

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Noise Figure given ASE Noise Power

Formula

`"F"_{"n"} = 10*log10("P"_{"ASE"}/("G"_{"s"}*"[hP]"*"f"*"B"))`

Example

`"36.08088"=10*log10("0.00043fW"/("1000.01"*"[hP]"*"20Hz"*"8e6Hz"))`

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Noise Figure given ASE Noise Power Solution

STEP 0: Pre-Calculation Summary

Formula Used

Noise Figure = 10*log10(ASE Noise Power/(Single Pass Gain*[hP]*Frequency Of Incident Light*Post Detection Bandwidth))
F_n = 10*log10(P_ASE/(G_s*[hP]*f*B))
This formula uses 1 Constants, 1 Functions, 5 Variables

Constants Used

[hP] - Planck constant Value Taken As 6.626070040E-34

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

Noise Figure - The Noise Figure in fiber optics is a measure of how much excess noise an optical amplifier adds to the signal.
ASE Noise Power - (Measured in Watt) - ASE Noise Power refers to the noise effect in an optical amplifier, which arises from a quantum effect known as spontaneous emission.
Single Pass Gain - Single Pass Gain refers to the fractional increase in energy as light makes a single pass through a medium.
Frequency Of Incident Light - (Measured in Hertz) - Frequency of incident light is a measure of how many cycles (oscillations) of the electromagnetic wave occur per second.
Post Detection Bandwidth - (Measured in Hertz) - Post Detection Bandwidth refers to the bandwidth of the electrical signal after it has been detected and converted from an optical signal.

STEP 1: Convert Input(s) to Base Unit

ASE Noise Power: 0.00043 Femtowatt --> 4.3E-19 Watt (Check conversion here)
Single Pass Gain: 1000.01 --> No Conversion Required
Frequency Of Incident Light: 20 Hertz --> 20 Hertz No Conversion Required
Post Detection Bandwidth: 8000000 Hertz --> 8000000 Hertz No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

F_n = 10*log10(P_ASE/(G_s*[hP]*f*B)) --> 10*log10(4.3E-19/(1000.01*[hP]*20*8000000))

Evaluating ... ...

F_n = 36.0808810777778

STEP 3: Convert Result to Output's Unit

36.0808810777778 --> No Conversion Required

FINAL ANSWER

36.0808810777778 ≈ 36.08088 <-- Noise Figure

(Calculation completed in 00.004 seconds)

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Home » Engineering » Electronics » Fiber Optic Transmission » C-V Actions of Optics Transmission » Noise Figure given ASE Noise Power

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Created by Vaidehi Singh

Prabhat Engineering College (P.E.C.), Uttar Pradesh

Vaidehi Singh has created this Calculator and 25+ more calculators!

Verified by Santhosh Yadav

Dayananda Sagar College Of Engineering (DSCE), Banglore

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< 17 C-V Actions of Optics Transmission Calculators

Noise Equivalent Power

Go Noise Equivalent Power = [hP]*[c]*sqrt(2*Charge Of Particles*Dark Current)/(Quantum Efficiency*Charge Of Particles*Wavelength of Light)

Passband Ripple

Go Passband Ripple = ((1+sqrt(Resistance 1*Resistance 2)*Single Pass Gain)/(1-sqrt(Resistance 1*Resistance 2)*Single Pass Gain))^2

ASE Noise Power

Go ASE Noise Power = Mode Number*Spontaneous Emission Factor*(Single Pass Gain-1)*([hP]*Frequency Of Incident Light)*Post Detection Bandwidth

Noise Figure given ASE Noise Power

Go Noise Figure = 10*log10(ASE Noise Power/(Single Pass Gain*[hP]*Frequency Of Incident Light*Post Detection Bandwidth))

Output Photo Current

Go Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light)

Peak Parametric Gain

Go Peak Parametric Gain = 10*log10(0.25*exp(2*Fiber Non Linear Coefficient*Pump Signal Power*Fiber Length))

Responsivity with reference of Wavelength

Go Responsivity of Photodetector = (Quantum Efficiency*[Charge-e]*Wavelength of Light)/([hP]*[c])

Total Shot Noise

Go Total Shot Noise = sqrt(2*[Charge-e]*Post Detection Bandwidth*(Photocurrent+Dark Current))

Responsivity in relation to Photon Energy

Go Responsivity of Photodetector = (Quantum Efficiency*[Charge-e])/([hP]*Frequency Of Incident Light)

Thermal Noise Current

Go Thermal Noise Current = 4*[BoltZ]*Absolute Temperature*Post Detection Bandwidth/Resistivity

Gain Coefficient

Go Net Gain Coefficient Per Unit Length = Optical Confinement Factor*Material Gain Coefficient-Effective Loss Coefficient

Junction Capacitance of Photodiode

Go Junction Capacitance = Permittivity of Semiconductor*Junction Area/Depletion Layer Width

Dark Current Noise

Go Dark Current Noise = 2*Post Detection Bandwidth*[Charge-e]*Dark Current

Load Resistor

Go Load Resistance = 1/(2*pi*Post Detection Bandwidth*Capacitance)

Optical Gain of Phototransistor

Go Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain

PhotoConductive Gain

Go PhotoConductive Gain = Slow Carrier Transit Time/Fast Carrier Transit Time

Responsivity of Photodetector

Go Responsivity of Photodetector = Photocurrent/Incident Power

Noise Figure given ASE Noise Power Formula

Noise Figure = 10*log10(ASE Noise Power/(Single Pass Gain*[hP]*Frequency Of Incident Light*Post Detection Bandwidth))
F_n = 10*log10(P_ASE/(G_s*[hP]*f*B))

What is the effect of ASE Noise Figure?

The Noise Figure of an amplifier is a key parameter that determines its performance. It is directly influenced by the Amplified Spontaneous Emission (ASE) power. An increase in ASE power results in an increase in the Noise Figure. This is because more pump power is required, resulting in larger ASE noise and other noises generated in the amplifier. If the input signal power to the amplifier decreases, the ASE competes more successfully with the signal for receiving gain. This leads to a decrease in the output Signal-to-Noise Ratio (SNR) and an increase in the Noise Figure.

How to Calculate Noise Figure given ASE Noise Power?

Noise Figure given ASE Noise Power calculator uses Noise Figure = 10*log10(ASE Noise Power/(Single Pass Gain*[hP]*Frequency Of Incident Light*Post Detection Bandwidth)) to calculate the Noise Figure, Noise Figure given ASE Noise Power is also referred to as the noise factor. These terms are used to indicate the degradation of the signal-to-noise ratio (SNR) caused by components in a signal chain. They are figures of merit used to evaluate the performance of an amplifier or a radio receiver, with lower values indicating better performance. Noise Figure is denoted by F_n symbol.

How to calculate Noise Figure given ASE Noise Power using this online calculator? To use this online calculator for Noise Figure given ASE Noise Power, enter ASE Noise Power (P_ASE), Single Pass Gain (G_s), Frequency Of Incident Light (f) & Post Detection Bandwidth (B) and hit the calculate button. Here is how the Noise Figure given ASE Noise Power calculation can be explained with given input values -> 36.08092 = 10*log10(4.3E-19/(1000.01*[hP]*20*8000000)).

FAQ

What is Noise Figure given ASE Noise Power?

Noise Figure given ASE Noise Power is also referred to as the noise factor. These terms are used to indicate the degradation of the signal-to-noise ratio (SNR) caused by components in a signal chain. They are figures of merit used to evaluate the performance of an amplifier or a radio receiver, with lower values indicating better performance and is represented as F_n = 10*log10(P_ASE/(G_s*[hP]*f*B)) or Noise Figure = 10*log10(ASE Noise Power/(Single Pass Gain*[hP]*Frequency Of Incident Light*Post Detection Bandwidth)). ASE Noise Power refers to the noise effect in an optical amplifier, which arises from a quantum effect known as spontaneous emission, Single Pass Gain refers to the fractional increase in energy as light makes a single pass through a medium, Frequency of incident light is a measure of how many cycles (oscillations) of the electromagnetic wave occur per second & Post Detection Bandwidth refers to the bandwidth of the electrical signal after it has been detected and converted from an optical signal.

How to calculate Noise Figure given ASE Noise Power?

Noise Figure given ASE Noise Power is also referred to as the noise factor. These terms are used to indicate the degradation of the signal-to-noise ratio (SNR) caused by components in a signal chain. They are figures of merit used to evaluate the performance of an amplifier or a radio receiver, with lower values indicating better performance is calculated using Noise Figure = 10*log10(ASE Noise Power/(Single Pass Gain*[hP]*Frequency Of Incident Light*Post Detection Bandwidth)). To calculate Noise Figure given ASE Noise Power, you need ASE Noise Power (P_ASE), Single Pass Gain (G_s), Frequency Of Incident Light (f) & Post Detection Bandwidth (B). With our tool, you need to enter the respective value for ASE Noise Power, Single Pass Gain, Frequency Of Incident Light & Post Detection Bandwidth 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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