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首页> 外国专利> Photodetection and ranging systems with distributed lasers and multiple sensor heads, and pulsed lasers for photodetection and ranging systems

Photodetection and ranging systems with distributed lasers and multiple sensor heads, and pulsed lasers for photodetection and ranging systems

机译：具有分布式激光器和多个传感器头的光电检测和测距系统，以及用于光电检测和测距系统的脉冲激光器

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The light detection and ranging system includes a light source, a plurality of optical links, and a plurality of sensor heads. Each optical link couples the light source to a corresponding sensor head, and each optical link carries the emitted light pulse to the corresponding sensor head. Each sensor head includes a scanner and a detector. The laser system includes a seed laser and a first fiber optic amplifier that amplifies the seed pulse. The laser system further includes an optical filter that removes an amount of amplified spontaneous emission from the output of the first amplifier. The laser system includes a second fiber optical amplifier that receives the amplified seed pulse from the first optical filter. The output pulse has characteristics including a repetition frequency of 100 MHz or less, a duration of 20 nanoseconds or less, and a duty cycle of 1% or less.
机译：光检测和测距系统包括光源，多个光学链路和多个传感器头。每个光学链路将光源耦合到相应的传感器头，并且每个光学链路将发射的光脉冲带到相应的传感器头部。每个传感器头包括扫描仪和检测器。激光系统包括种子激光器和放大种子脉冲的第一光纤放大器。激光系统还包括光学滤波器，其从第一放大器的输出中去除放大的自发发射量。激光系统包括第二光纤光放大器，其从第一滤光器接收放大的种子脉冲。输出脉冲具有包括100MHz或更小的重复频率的特性，持续时间为20纳秒或更小，占空比为1％或更少。

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