67.4: GaN‐Based High‐Power Blue Laser Diodes for Display Applications

Abstract We succeeded fabricating high power blue (445nm) laser diodes (LDs) with an output power of 500mW. The operating current, voltage and wall‐plug efficiency of these LDs were 480mA, 4.8V, and 21.7%, respectively. Estimated Lifetime of these LDs was over 10,000h under continuous‐wave operation at 25 °C.