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Optical Gain of Phototransistor 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%
✖Common Emitter Current Gain is the gain in common emitter circuit which is obtained from the base and the collector circuit currents.ⓘ Common Emitter Current Gain [h_FE]			+10% -10%

✖Optical Gain of Phototransistor is a measure of how well a medium amplifies photons by stimulated emission.ⓘ Optical Gain of Phototransistor [G_O]

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Optical Gain of Phototransistor Solution

STEP 0: Pre-Calculation Summary

Formula Used

Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain
G_O = η*h_FE
This formula uses 3 Variables

Variables Used

Optical Gain of Phototransistor - Optical Gain of Phototransistor is a measure of how well a medium amplifies photons by stimulated emission.
Quantum Efficiency - Quantum Efficiency represents the probability that a photon incident on the photodetector will generate an electron-hole pair, leading to a photocurrent.
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.

STEP 1: Convert Input(s) to Base Unit

Quantum Efficiency: 0.3 --> No Conversion Required
Common Emitter Current Gain: 0.5 --> No Conversion Required

STEP 2: Evaluate Formula

Substituting Input Values in Formula

G_O = η*h_FE --> 0.3*0.5

Evaluating ... ...

G_O = 0.15

STEP 3: Convert Result to Output's Unit

0.15 --> No Conversion Required

FINAL ANSWER

0.15 <-- Optical Gain of Phototransistor

(Calculation completed in 00.004 seconds)

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Sinhgad College Of Engineering (SCOE), Pune

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Optical Gain of Phototransistor Formula

LaTeX Go

Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain
G_O = η*h_FE

Do you know where are phototransistors used ?

Phototransistors are used in opto-isolators, photointerrupters, proximity detectors and incremental encoders.

How to Calculate Optical Gain of Phototransistor?

Optical Gain of Phototransistor calculator uses Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain to calculate 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 G_O symbol.

How to calculate Optical Gain of Phototransistor using this online calculator? To use this online calculator for Optical Gain of Phototransistor, enter Quantum Efficiency (η) & Common Emitter Current Gain (h_FE) and hit the calculate button. Here is how the Optical Gain of Phototransistor calculation can be explained with given input values -> 0.15 = 0.3*0.5.

FAQ

What is Optical Gain of Phototransistor?

The Optical Gain of Phototransistor is a measure of how well a medium amplifies photons by stimulated emission and is represented as G_O = η*h_FE or Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain. Quantum Efficiency represents the probability that a photon incident on the photodetector will generate an electron-hole pair, leading to a photocurrent & Common Emitter Current Gain is the gain in common emitter circuit which is obtained from the base and the collector circuit currents.

How to calculate Optical Gain of Phototransistor?

The Optical Gain of Phototransistor is a measure of how well a medium amplifies photons by stimulated emission is calculated using Optical Gain of Phototransistor = Quantum Efficiency*Common Emitter Current Gain. To calculate Optical Gain of Phototransistor, you need Quantum Efficiency (η) & Common Emitter Current Gain (h_FE). With our tool, you need to enter the respective value for Quantum Efficiency & Common Emitter Current Gain 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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