An InGaAsP heterojunction phototransistor has a common emitter current gain of 170 when operating at a wavelength of 1.3 um with an incident optical power of 80 µW. The base-collector quantum...

An InGaAsP heterojunction phototransistor has a common emitter current gain of 170 when operating at a wavelength of 1.3 um with an incident optical power 0f 80 uW. The base-collector quantum efficiency at this wavelength is 65%. Estimate the collector current i the device,


Extracted text: An InGaAsP heterojunction phototransistor has a common emitter current gain of 170 when operating at a wavelength of 1.3 um with an incident optical power of 80 µW. The base-collector quantum efficiency at this wavelength is 65%. Estimate the collector current in the device.