2. Electrical measurements

2.1 Static measurements: voltage and current

Measuring the electrical characteristics of semiconductor transmitters is a good first approach to estimating component quality [6].

When the emitting diode (LED or sub-threshold laser) is supplied with steady-state power from a DC generator, the total current flowing through the component is composed of :
- a diffusion current, attributed to radiative recombination (curve I, figure 4 );
- a non-radiative current, attributed to thermal recombination (or Schottky-Hall-Read) (curve II, figure

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Electrical measurements

(1) - JOINDOT (I.), JOINDOT (M.), douze coauteurs - Les télécommunications par fibres optiques - . DUNOD Collection technique et scientifique des télécommunications, 1996.
(2) - AGRAWAL (G.P.), DUTTA (N.K.) - Longwavelength semiconductors...