Novel miniaturized high-energy Nd-YAG laser for spark ignition in internal combustion engines

Gerhard Kroupa; Georg Franz; Ernst Winkelhofer

doi:10.1117/1.3072958

1 January 2009 Novel miniaturized high-energy Nd-YAG laser for spark ignition in internal combustion engines

Gerhard Kroupa, Georg Franz, Ernst Winkelhofer

Author Affiliations +

Optical Engineering, Vol. 48, Issue 1, 014202 (January 2009). https://doi.org/10.1117/1.3072958

Abstract

A robust, miniaturized, diode-pumped high-energy neodymium doped yttrium aluminium garnet (Nd:YAG) laser with passive Q-switch generating 25 mJ at 3 ns has been demonstrated at repetition rates of up to 150 Hz. The device is designed for ignition of fuel air mixtures in internal combustion engines. The pump diodes and Peltier cooling are integrated in the laser head, giving a compact design with a small number of optical components for easy assembly. The laser was successfully operated as an optical spark plug on a test engine at high temperature and vibration levels.

©(2009) Society of Photo-Optical Instrumentation Engineers (SPIE)

Citation Download Citation

Gerhard Kroupa, Georg Franz, and Ernst Winkelhofer "Novel miniaturized high-energy Nd-YAG laser for spark ignition in internal combustion engines," Optical Engineering 48(1), 014202 (1 January 2009). https://doi.org/10.1117/1.3072958

Published: 1 January 2009

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