[PRJ2] Optical Components

[PRJ2-4] High Power Red Laser Diode for Projector Light Source

*Masato Hagimoto¹, Shintaro Miyamoto¹, Yuki Kimura¹, Haruki Fukai¹, Manabu Hashizume¹, Satoshi Kawanaka¹ (1. USHIO OPTO SEMICONDUCTORS, INC. (Japan))

キーワード：red laser, laser projector, speckle reduction, wall plug efficiency, tensile strain

We developed 638nm and 642nm red laser diodes with 3.5W pulse / 2.4W CW operation. The 3.5W pulsed operation and wall plug efficiency of 43% are the world’s highest in 638nm to the best of our knowledge. The lineups of multiple wavelengths are ideal as red light sources for projector.