3 nJ, 100 ps laser pulses generated with an asymmetric waveguide laser diode for a single-photon avalanche diode time-of-flight (SPAD TOF) rangefinder application
3 nJ, 100 ps laser pulses generated with an asymmetric waveguide laser diode for a single-photon avalanche diode time-of-flight (SPAD TOF) rangefinder application
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DOI：
10.1088/0957-0233/23/2/025202
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发表时间：
2012-02
影响因子：
2.4
通讯作者：
L. Hallman;K. Haring;L. Toikkanen;T. Leinonen;B. Ryvkin;J. Kostamovaara
中科院分区：
文献类型：
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作者：
L. Hallman;K. Haring;L. Toikkanen;T. Leinonen;B. Ryvkin;J. Kostamovaara
具有厚有源层的非对称波导激光二极管在增强增益切换下工作，能够在基本横向模式下产生~100 ps、~25 W 光脉冲，并具有~15 A、~1.5 ns 注入电流脉冲。利用该激光二极管和 SPAD 探测器进行的脉冲飞行时间距离测量演示表明，在几分之一秒的测量时间内，数十到数百米的不合作目标可达到厘米级精度和补偿精度。
An asymmetric waveguide laser diode with a thick active layer operated with enhanced gain switching is shown to be able to produce ∼100 ps, ∼25 W optical pulses in fundamental transverse mode with ∼15 A, ∼1.5 ns injection current pulses. A pulsed time-of-flight distance measurement demonstration utilizing this laser diode and a SPAD detector indicates centimetre-level precision and compensated accuracy from uncooperative targets at tens to hundreds of metres in a measurement time of a fraction of a second.