A Hybrid-Integrated Two-Dimensional(3×24)High-Efficiency High-Power Laser Diode Array

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  • Nemoto Kazuhiko
    Sony Corporation Research Center, 174 Fujitsuka–cho, Hodogaya–ku, Yokohama 240, Japan
  • Ogawa Masamichi
    Sony Corporation Research Center, 174 Fujitsuka–cho, Hodogaya–ku, Yokohama 240, Japan
  • Kobayashi Toshimasa
    Sony Corporation Research Center, 174 Fujitsuka–cho, Hodogaya–ku, Yokohama 240, Japan
  • Matsuda Osamu
    Sony Corporation Research Center, 174 Fujitsuka–cho, Hodogaya–ku, Yokohama 240, Japan

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タイトル別名
  • A Hybrid-Integrated Two-Dimensional (3*24) High-Efficiency High-Power Laser Diode Array.
  • Hybrid-Integrated Two-Dimensional 3 24

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Using buried-heterostructure laser diodes grown by one-step metal organic chemical vapor deposition and a structure designed to dissipate heat, we have realized a hybrid-integrated two-dimensional high-power laser diode array. The array consists of 3× 24 elements, which are individually addressed in a simple matrix. The laser emits at 850 nm and each element operates at 30 mW. The laser characteristics have good uniformity and an energy-conversion efficiency of 45% was achieved. Finite element analysis was used to calculate the thermal characteristics and it was shown that the laser array can be a practical device. The array was operated for more than 1100 h under constant current at room temperature without an external cooler, when the initial power of each laser element was 30 mW, the pulse width was 0.1 ms and the duty cycle was 25%.

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