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Optical Gain of Phototransistor Formula

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Optical Gain of Phototransistor is a measure of how well a medium amplifies photons by stimulated emission. Check FAQs
GO=η⋅hFE
GO - Optical Gain of Phototransistor?η - Quantum Efficiency?hFE - Common Emitter Current Gain?

Optical Gain of Phototransistor Example

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Here is how the Optical Gain of Phototransistor equation looks like with Values.

Here is how the Optical Gain of Phototransistor equation looks like with Units.

Here is how the Optical Gain of Phototransistor equation looks like.

0.15Edit=0.3Edit⋅0.5Edit
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Optical Gain of Phototransistor Solution

Follow our step by step solution on how to calculate Optical Gain of Phototransistor?

FIRST Step Consider the formula
GO=η⋅hFE
Next Step Substitute values of Variables
∴ GO=0.3⋅0.5
Next Step Prepare to Evaluate
∴ GO=0.3⋅0.5
LAST Step Evaluate
∴GO=0.15

Optical Gain of Phototransistor Formula Elements

Variables
Optical Gain of Phototransistor
Optical Gain of Phototransistor is a measure of how well a medium amplifies photons by stimulated emission.
Symbol: GO
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Formulas to find Optical Gain of PhototransistorOpen Variable
Quantum Efficiency
Quantum Efficiency represents the probability that a photon incident on the photodetector will generate an electron-hole pair, leading to a photocurrent.
Symbol: η
Measurement: NAUnit: Unitless
Note: Value should be between 0 to 1.
Formulas to find Quantum EfficiencyOpen Variable
Common Emitter Current Gain
Common Emitter Current Gain is the gain in common emitter circuit which is obtained from the base and the collector circuit currents.
Symbol: hFE
Measurement: NAUnit: Unitless
Note: Value should be greater than 0.
Formulas to find Common Emitter Current GainOpen Variable

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How to Evaluate Optical Gain of Phototransistor?

Optical Gain of Phototransistor evaluator uses Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain to evaluate the Optical Gain of Phototransistor, The Optical Gain of Phototransistor is a measure of how well a medium amplifies photons by stimulated emission. Optical Gain of Phototransistor is denoted by GO symbol.

How to evaluate Optical Gain of Phototransistor using this online evaluator? To use this online evaluator for Optical Gain of Phototransistor, enter Quantum Efficiency (η) & Common Emitter Current Gain (hFE) and hit the calculate button.

FAQs on Optical Gain of Phototransistor

What is the formula to find Optical Gain of Phototransistor?
The formula of Optical Gain of Phototransistor is expressed as Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain. Here is an example- 0.15 = 0.3*0.5.
How to calculate Optical Gain of Phototransistor?
With Quantum Efficiency (η) & Common Emitter Current Gain (hFE) we can find Optical Gain of Phototransistor using the formula - Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain.
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