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Enormously high-peak-power optical pulse generation from a single-transverse-mode GaInN blue-violet laser diode

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6 Author(s)
Kuramoto, Masaru ; Advanced Materials Laboratories, SONY Corporation, 4-14-1 Asahi-cho, Atsugi 243-0014, Japan ; Oki, Tomoyuki ; Sugahara, Tomoya ; Kono, Shunsuke
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We have demonstrated extraordinary optical pulse generation with a peak-power of 55 W and pulse duration of 15 ps by intense electrical pulse excitation of a 401 nm GaInN laser diode (LD). Electrical pulse excitation of a GaInN LD which contained a thicker electron blocking layer gave rise to abnormal behavior with a several nanosecond-long delay and apparent Q-switching under intense excitation. Operation of this LD under such excitation was found to produce highly intense optical pulses even in semiconductor lasers with a single-transverse-mode.

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Applied Physics Letters  (Volume:96 ,  Issue: 5 )