Abstract:Abstract. The output current of an avalanche photodiodes (APD's) fluctuates in the absence of light as well as in its presence. The noise in APD's current arises from three sources: randomness in the number and in the positions at which dark carrier pairs are generated, randomness in the photon arrival number, and randomness in the carrier multiplication process. A Monte Carlo model has been used to estimate the excess noise factor in thin p + -i-n + GaAs avalanche photodiodes. As this approach is computation … Show more
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