Fig. 3From: A current-mode system to self-measure temperature on implantable optoelectronicsTransient response of the LED switching ON and OFF with a clock signal of 1 MHz. The blue pulse shows the measured voltage across the LED while the yellow pulse was applied as input signal. The spikes on the output signal are mainly because of the LED, and the shorter spikes on the input pulse are introduced by the function generatorBack to article page