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We have a fiber optics link that uses a semiconductor pin photodiode which has the following characteristics: Wavelength of operation is 1.31 µm, reflectivity of the entrance face (anti- reflection coating) is 0.1, width of the depletion layer is 300 µm and the absorption coefficient of the semiconductor material is 25 cm'. a. If a steady state average optical power of 0.2 mwatt is applied to this semiconductor pin photodiode, find the average photocurrent generated. Take h= 6.6×10¯* Joule.sec and q =1.6×10*" Amp.sec. b. Find the responsivity of this semiconductor pin photodiode in mAmp/watt. If you measure 1010 µ Amp at the output of this semiconductor pin photodiode, what is the applied average optical power in mwatts?

We have a fiber optics link that uses a semiconductor pin photodiode which has the following characteristics: Wavelength of operation is 1.31 µm, reflectivity of the entrance face (anti- reflection coating) is 0.1, width of the depletion layer is 300 µm and the absorption coefficient of the semiconductor material is 25 cm'. a. If a steady state average optical power of 0.2 mwatt is applied to this semiconductor pin photodiode, find the average photocurrent generated. Take h= 6.6×10¯* Joule.sec and q =1.6×10*" Amp.sec. b. Find the responsivity of this semiconductor pin photodiode in mAmp/watt. If you measure 1010 µ Amp at the output of this semiconductor pin photodiode, what is the applied average optical power in mwatts?

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2. We have a fiber optics link that uses a semiconductor pin photodiode which has the following characteristics: Wavelength of operation is 1.31 µm, reflectivity of the entrance face (anti- reflection coating) is 0.1, width of the depletion layer is 300 µm and the absorption coefficient of the semiconductor material is 25 cm". a. If a steady state average optical power of 0.2 mwatt is applied to this semiconductor pin photodiode, find the average photocurrent generated. Take h = 6.6×10* Joule.sec and q =1.6×10 Amp.sec. b. Find the responsivity of this semiconductor pin photodiode in mAmp/watt . If you measure 1010 µ Amp at the output of this semiconductor pin photodiode, what is the applied average optical power in mwatts?
Transcribed Image Text:2. We have a fiber optics link that uses a semiconductor pin photodiode which has the following characteristics: Wavelength of operation is 1.31 µm, reflectivity of the entrance face (anti- reflection coating) is 0.1, width of the depletion layer is 300 µm and the absorption coefficient of the semiconductor material is 25 cm". a. If a steady state average optical power of 0.2 mwatt is applied to this semiconductor pin photodiode, find the average photocurrent generated. Take h = 6.6×10* Joule.sec and q =1.6×10 Amp.sec. b. Find the responsivity of this semiconductor pin photodiode in mAmp/watt . If you measure 1010 µ Amp at the output of this semiconductor pin photodiode, what is the applied average optical power in mwatts?
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