The operating temperature of this cost-effective laser source ranges from -40° to 85°C, and it also meets all other requirements for use in automotive technology. There, VCSEL lasers are used as light sources for various assistance systems (e.g., in facial recognition and gesture control in vehicles).
Dual-junction diodes use not one, but two stacked p-n junctions connected by a tunnel junction. In VCSEL lasers, this increases conversion efficiency: less operating current is needed to achieve the desired laser output. This makes it possible to design smaller and faster components.
