Edfa Noise Figure Calculator
Declared EDFA F=[Pase/(hνB)+1]/G and noise figure10log10(F) dB for output ASE BOTH polarizations, actual linear gain≥1 and complete matched bandwidth. Require consistent F≥1; not generic dB converter, one-polarization ASE or infer noise spectrum. Parameters independently calibrated; not manufacturer performance or safe design approval.
Description
An EDFA noise-factor calculation requires a matched output ASE polarization and bandwidth convention.
An EDFA noise-factor calculation requires a matched output ASE polarization and bandwidth convention.1
This tool computes the supplied both-polarization relation and its decibel form without estimating a noise spectrum.
When to use Edfa Noise Figure Calculator
Use this tool to compute the supplied both-polarization relation and its decibel form without estimating a noise spectrum.
How to use Edfa Noise Figure Calculator and how it works
- Prepare actualOutputAsePowerWatts, callerPhotonEnergyJoules, actualOpticalNoiseBandwidthHz, actualLinearOpticalGain, with the units, conventions and assumptions below.
- Enter the required fields and run Edfa Noise Figure Calculator.
- Read result.noiseFactor, result.noiseFigureDb using the output definitions below.
- Correct any rejected inputs and rerun; interpret the result within the stated model and its assumptions.
| Input field | Meaning | Value type | Requirement |
|---|---|---|---|
| actualOutputAsePowerWatts | Actual Output Ase Power Watts. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| callerPhotonEnergyJoules | Caller Photon Energy Joules. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualOpticalNoiseBandwidthHz | Actual Optical Noise Bandwidth Hz. Use the units and matching context stated in the calculation below. | number | Required; strictly positive; finite; other constraints below |
| actualLinearOpticalGain | Actual Linear Optical Gain. Use the units and matching context stated in the calculation below. | number | Required; finite; other constraints below |
Supply positive ASE power in watts, photon energy in joules and noise bandwidth in hertz plus power gain at least one. Form F=(ASE/(photonEnergy*bandwidth)+1)/gain, require F>=1 and return F plus 10*log10(F) in decibels. The power, bandwidth and polarization convention must match this specific accounting.
noiseFactor=(ASEpower/(photonEnergy*bandwidth)+1)/gain; noiseFigureDb=10*log10(noiseFactor) Apply the input ordering, units and branch conditions stated above.
| Output field | Meaning | Value type |
|---|---|---|
| result | Object containing the calculated or selected fields below. | object |
| result.noiseFactor | Dimensionless linear noise factor, constrained to at least one. | number |
| result.noiseFigureDb | 10*log10(noiseFactor), in decibels. | number |
{
"input": {
"actualOutputAsePowerWatts": 7,
"callerPhotonEnergyJoules": 1,
"actualOpticalNoiseBandwidthHz": 1,
"actualLinearOpticalGain": 4
},
"output": {
"result": {
"noiseFactor": 2,
"noiseFigureDb": 3.010299956639812
}
}
}Limitations and assumptions
The calculation uses the supplied observations and model inputs. It does not collect measurements, select a reference population or coefficient, or establish that the model applies to the actual case. The stated branch conditions and output units remain part of the result.
All fields require explicit values. Unexpected fields, wrong types, nonfinite numbers and sparse arrays are rejected. Alignment, bounds and supported-token rules are explained above; extremely large inputs or nonfinite results can also fail. Input errors differ from successful false comparisons, unavailable-domain flags and empty match lists.
Alternative or Complementary methods
Use Q Factor From Ber Calculator for a complementary operation: A Gaussian Q-to-BER model has an inverse normal-tail convention that differs from other modulation models.
Use Bit Error Rate From Snr Calculator for a complementary operation: Coherent BPSK in AWGN has a specific BER relation to linear bit-energy-to-noise ratio.
References
-
Edfa Noise Figure Calculator — tool.io
Similar or alternative tools
- Q Factor From Ber Calculator
A Gaussian Q-to-BER model has an inverse normal-tail convention that differs from other modulation models.
- Bit Error Rate From Snr Calculator
Coherent BPSK in AWGN has a specific BER relation to linear bit-energy-to-noise ratio.