Dowa announces highest efficiency SWIR LED
SWIR-LED chip achieves 170mW output power at 1,350nm, two times higher than comparable products
Japan-based Dowa Electronics Materials has successfully developed and released a high-efficiency Short-Wavelength-Infrared (SWIR) LED chip series which has the world’s highest efficiency in the peak wavelength range of 1,200 to 1,900 nm.
The newly developed SWIR-LED chip achieves 170mW output power with a 1mm square chip at 1,350nm, two times higher than comparable products. Even at 1,900nm, where it is considered difficult to improve luminous efficiency, the 1mm square chip achieves 45mW (driving current 1A with DC conditions), 30 percent more power compared to the conventional devices.
In addition to the 350 µm square and 1 mm square chip sizes, Dowa is introducing a 250 µm square version to its SWIR-LED series. When paired with a Dowa InGaAs Photo Diode already in mass production, the new SWIR LED can be used in sensors.
Available in three different sizes, the Dowa SWIR LED can be used in a wide range of applications from telecommunication equipment and wearables that require device miniaturisation to machine vision where high radiant power must be required.
