Output Photo Current Calculator

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C-V Actions of Optics Transmission

Fiber Optic Parameters

Optical Detectors

Transmission Measurements

✖Quantum Efficiency represents the probability that a photon incident on the photodetector will generate an electron-hole pair, leading to a photocurrent.ⓘ Quantum Efficiency [η]			+10% -10%
✖Incident Optical Power is a measure of the rate at which light carries energy. It represents the amount of optical energy transmitted per unit of time.ⓘ Incident Optical Power [P_i]			+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%

✖Photocurrent is the electrical current produced by the photodetector when exposed to light.ⓘ Output Photo Current [I_p]

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Formula

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Output Photo Current

Formula

`"I"_{"p"} = "η"*"P"_{"i"}*"[Charge-e]"/("[hP]"*"f")`

Example

`"2.2E^16mA"="0.3"*"6W"*"[Charge-e]"/("[hP]"*"20Hz")`

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Output Photo Current Solution

STEP 0: Pre-Calculation Summary

Formula Used

Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light)
I_p = η*P_i*[Charge-e]/([hP]*f)
This formula uses 2 Constants, 4 Variables

Constants Used

[Charge-e] - Charge of electron Value Taken As 1.60217662E-19
[hP] - Planck constant Value Taken As 6.626070040E-34

Variables Used

Photocurrent - (Measured in Ampere) - Photocurrent is the electrical current produced by the photodetector when exposed to light.
Quantum Efficiency - Quantum Efficiency represents the probability that a photon incident on the photodetector will generate an electron-hole pair, leading to a photocurrent.
Incident Optical Power - (Measured in Watt) - Incident Optical Power is a measure of the rate at which light carries energy. It represents the amount of optical energy transmitted per unit of time.
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.

STEP 1: Convert Input(s) to Base Unit

Quantum Efficiency: 0.3 --> No Conversion Required
Incident Optical Power: 6 Watt --> 6 Watt No Conversion Required
Frequency Of Incident Light: 20 Hertz --> 20 Hertz No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

I_p = η*P_i*[Charge-e]/([hP]*f) --> 0.3*6*[Charge-e]/([hP]*20)

Evaluating ... ...

I_p = 21761903349877.7

STEP 3: Convert Result to Output's Unit

21761903349877.7 Ampere -->2.17619033498777E+16 Milliampere (Check conversion here)

FINAL ANSWER

2.17619033498777E+16 ≈ 2.2E+16 Milliampere <-- Photocurrent

(Calculation completed in 00.004 seconds)

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Credits

Created by Santhosh Yadav

Dayananda Sagar College Of Engineering (DSCE), Banglore

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

Verified by Ritwik Tripathi

Vellore Institute of Technology (VIT Vellore), Vellore

Ritwik Tripathi has verified this Calculator and 100+ more calculators!

< 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

Output Photo Current Formula

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

How does the magnitude of the output photocurrent relate to the sensitivity of a photodetector?

The magnitude of the output photocurrent is directly related to the sensitivity of a photodetector. Sensitivity in this context refers to the ability of the photodetector to respond to incident light or radiation, especially weak or low-intensity light.

How to Calculate Output Photo Current?

Output Photo Current calculator uses Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light) to calculate the Photocurrent, Output Photo Current is the electrical current generated by the photodetector when exposed to incident light or radiation. Photocurrent is denoted by I_p symbol.

How to calculate Output Photo Current using this online calculator? To use this online calculator for Output Photo Current, enter Quantum Efficiency (η), Incident Optical Power (P_i) & Frequency Of Incident Light (f) and hit the calculate button. Here is how the Output Photo Current calculation can be explained with given input values -> 2.2E+13 = 0.3*6*[Charge-e]/([hP]*20).

FAQ

What is Output Photo Current?

Output Photo Current is the electrical current generated by the photodetector when exposed to incident light or radiation and is represented as I_p = η*P_i*[Charge-e]/([hP]*f) or Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light). Quantum Efficiency represents the probability that a photon incident on the photodetector will generate an electron-hole pair, leading to a photocurrent, Incident Optical Power is a measure of the rate at which light carries energy. It represents the amount of optical energy transmitted per unit of time & Frequency of incident light is a measure of how many cycles (oscillations) of the electromagnetic wave occur per second.

How to calculate Output Photo Current?

Output Photo Current is the electrical current generated by the photodetector when exposed to incident light or radiation is calculated using Photocurrent = Quantum Efficiency*Incident Optical Power*[Charge-e]/([hP]*Frequency Of Incident Light). To calculate Output Photo Current, you need Quantum Efficiency (η), Incident Optical Power (P_i) & Frequency Of Incident Light (f). With our tool, you need to enter the respective value for Quantum Efficiency, Incident Optical Power & Frequency Of Incident Light 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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