Compact nanosecond laser system for the ignition of aeronautic combustion engines
Compact nanosecond laser system for the ignition of aeronautic combustion engines
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用于航空内燃机点火的紧凑型纳秒激光系统
DOI：
10.1063/1.4971964
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发表时间：
2016
影响因子：
3.2
通讯作者：
E. Freysz
中科院分区：
文献类型：
--
作者：
Gabriel Amiard;G. Tison;E. Freysz
我们研究并开发了一种紧凑型纳秒激光系统，专用于航空内燃机点火。该系统基于纳秒微芯片激光器，可提供 6 μJ 纳秒脉冲，该脉冲在两个连续阶段中被放大。第一级基于在准连续波 (QCW) 状态下工作的掺镱光纤放大器 (YDFA)。它以 1kHz 重复频率泵送，可提供 TEM00 和以 1064nm 为中心的线偏振纳秒脉冲，能量高达 350μJ。这些结果与我们专门为脉冲 QCW 泵体系设计的模型非常吻合。第二放大级基于紧凑型 Nd:YAG 双通放大器，由以 λ= 808nm 为中心的 400W 峰值功率 QCW 二极管泵浦，并耦合到 800μm 芯多模光纤。在 10 Hz 重复率下，该系统将 YDFA 传递的脉冲放大至 11 mJ，同时保持其光束轮廓、偏振比和脉冲持续时间。最后，我们证明该组件...
We have studied and developed a compact nanosecond laser system dedicated to the ignition of aeronautic combustion engines. This system is based on a nanosecond microchip laser delivering 6 μJ nanosecond pulses, which are amplified in two successive stages. The first stage is based on an Ytterbium doped fiber amplifier (YDFA) working in a quasi-continuous-wave (QCW) regime. Pumped at 1 kHz repetition rate, it delivers TEM00 and linearly polarized nanosecond pulses centered at 1064 nm with energies up to 350 μJ. These results are in very good agreement with the model we specially designed for a pulsed QCW pump regime. The second amplification stage is based on a compact Nd:YAG double-pass amplifier pumped by a 400 W peak power QCW diode centered at λ = 808 nm and coupled to a 800 μm core multimode fiber. At 10 Hz repetition rate, this system amplifies the pulse delivered by the YDFA up to 11 mJ while preserving its beam profile, polarization ratio, and pulse duration. Finally, we demonstrate that this comp...
使用被动 Q 开关激光火花塞进行脉冲序列点火
影响因子：
2.5
作者：
S. Lorenz;M. Bärwinkel;R. Stäglich;W. Mühlbauer;D. Brüggemann
通讯作者：
D. Brüggemann