Laser vs. LED: New research studies are exploring the effectiveness of laser diodes in producing white light that could be used in ambient lighting.
While you’ve undoubtedly heard about the rise of Light Emitting Diodes (LEDs) and the potential rise of Organic Light Emitting Diodes (OLEDs), you may not be familiar with the latest form of solid-state lighting that is further out on the horizon: Laser Diodes (LDs). A number of recent research studies have demonstrated the ability of laser diodes to produce efficient white light that could potentially satisfy general illumination requirements.
Laser diodes have both similarities and differences to LEDs. Both are produced from similar “sandwiches” of semiconductor materials, including Gallium nitride (GaN), to produce blue light. The most familiar uses of laser diodes are in laser pointers and Blu-ray disc players, however, neither of these examples involves white light.