High Power Pure Blue InGaN Laser Diodes

  • NAGAHAMA Shinichi
    LD Development Department, LD Engineering Division, Optoelectronics Product BU, Nichia Corp.

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  • 純青色高出力InGaN半導体レーザー
  • ジュンセイショク コウシュツリョク InGaN ハンドウタイ レーザー

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Abstract

High-power pure blue laser diodes (LDs) are expected to be adapted to the light sources for full color laser display systems. We have succeeded in fabricating high-power blue LDs by optimizing the structure of ridgewaveguide LDs. The typical operating current, voltage and wall-plug efficiency of these LDs with an optical output power of 500mW were 480mA, 4.8V, and 21.7%, respectively. After 5,000 hours operation, the lifetime was estimated to be over 30,000 hours.

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