Abstract This paper describes an experimental study pertaining to laser ignition of igniters of liquid rocket engines operating on such propellants as O $$_{2g}$$ _ 2 g + kerosene, O $$_{2g}$$ _ 2 g + ethanol, and O $$_{2g}$$ _ 2 g + H $$_{2g}$$ _ 2 g , and to how they ignite the propellant of a model combustion chamber. A quartz fiber based optical device is described, which allows for multiple ignition of the igniter and the combustion chamber without replacing the device. This study also touches upon possible types of pulsed lasers used in the laser ignition system, a fiber-optic laser igniter that remain hermetic and operable at a combustion chamber pressure of up to 10 MPa and more than 100 ignition cycles.

中文翻译：

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火箭发动机激光点火系统的研制与试验

摘要 本文描述了关于使用 O $$_{2g}$$ _ 2 g + 煤油、O $$_{2g}$$ _ 2 g + 等推进剂运行的液体火箭发动机点火器的激光点火实验研究乙醇和 O $$_{2g}$$ _ 2 g + H $$_{2g}$$ _ 2 g ，以及它们如何点燃模型燃烧室的推进剂。描述了一种基于石英纤维的光学装置，其允许点火器和燃烧室的多次点火而无需更换该装置。这项研究还涉及激光点火系统中可能使用的脉冲激光器类型，这是一种光纤激光点火器，可在高达 10 MPa 的燃烧室压力和 100 多个点火周期下保持密封和运行。