A monolithic waveguide architecture comprising a third-order grating section for longitudinal mode selection, an index-guided gain section for lateral mode filtering, and a gain-guided tapered section for power scaling. An output power of 770 mW is reported for continuous wave operation at room temperature. In pulsed mode, the laser delivered a peak power of 4.6 W with a full width at half-maximum spectral linewidth of only 250 pm. Independent shift of only 0.1 nm/°C. The parameters achieved suggest that these laser diodes would enable the realization of compact LIDAR systems with improved signal-to-noise ratio, owing to the high output power and the possibility to use narrow passband filters at receiver side, which is enabled by the narrow and temperature-stable-temperature-stable emission spectrum. The wavelength range around 1.5 μm also enables LIDAR systems with high output powers while maintaining eye safety, ultimately leading to improved system performance.

中文翻译：

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用于人眼安全激光雷达的高功率 1.5 μm 锥形分布式布拉格反射激光二极管


一种单片波导架构，包括用于纵向模式选择的三阶光栅部分、用于横向模式滤波的折射率引导增益部分以及用于功率缩放的增益引导锥形部分。据报道，室温下连续波操作的输出功率为 770 mW。在脉冲模式下，激光器提供 4.6 W 的峰值功率，半峰全宽光谱线宽仅为 250 pm。独立位移仅为 0.1 nm/°C。所获得的参数表明，这些激光二极管将能够实现具有更高信噪比的紧凑型激光雷达系统，因为它们具有高输出功率以及在接收器侧使用窄通带滤波器的可能性，这是通过窄带通带滤波器实现的。温度稳定-温度稳定的发射光谱。 1.5 μm 左右的波长范围还使激光雷达系统能够具有高输出功率，同时保持眼睛安全，最终提高系统性能。