Avalanche photodiode non-linearity cancellation

Details Avalanche photodiode non-linearity cancellation Avalanche photodiode non-linearity cancellation

1989-08-24

1991-08-27

Miller, Stanley D.

Electrical transmission or interconnection systems

Nonlinear reactor systems

Parametrons

356 731, G01N 2101, G06G 712

Patent

active

050436082

ABSTRACT:
An avalanche photodiode non-linearity correction circuit cancels a portion of a non-linear recovery error response by the APD to an input signal by using the fact that the non-linear recovery error is only mildly dependent upon the APD gain. The gain of the APD is varied from data acquisition cycle to data acquisition cycle, with the acquired data being stored. The stored data from consecutive data acquisition cycles are combined in a summation circuit to effectively cancel a significant portion of the non-linear recovery error response.

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