Page 369 - Introduction to Information Optics

354 6. Interconnection with Optics

6.12 Consider a typical avalanche photodiode with the following parameters:

Incident optical power P* PA — 50 mW
Efficiency ;/ de, = 90%
14
Optical frequency v = 4.5 x 10 Hz
Breakdown voltage V R — 35 V
Diode voltage V = 34 V
Dark current / 0 = 10 nA
Parameter n' for the multiplication = 2

Assume that the series resistance is negligible. Calculate:
(a) Multiplication factor.
(b) Photoflux.
(c) Photocurrent.