High-pulse energy mid-infrared laser source

Gunnar Rustad; Stephane Nicolas; Ørnulf Nordseth; Gunnar Arisholm

doi:10.1117/12.629870

3 November 2005 High pulse energy mid-infrared laser source

Gunnar Rustad, Stephane Nicolas, Ørnulf Nordseth, Gunnar Arisholm

Proceedings Volume 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II; 598904 (2005) https://doi.org/10.1117/12.629870
Event: European Symposium on Optics and Photonics for Defence and Security, 2005, Bruges, Belgium

Abstract

Nonlinear optical conversion of 500 mJ pulses from a Nd:YAG laser to the mid-infrared is demonstrated in a two-step architecture. Using a type 2 phase matched KTiOPO₄-based master-oscillator/power-amplifier (MOPA) architecture for conversion to 2 μm, 140 mJ signal at 2.08 μm with M² = 2.3 and 80 mJ idler at 2.18 μm were obtained. Using 58 mJ of the signal beam to pump a ZnGeP₂-based MOPA, we have obtained 21 mJ in the 3-5 μm range with M² ≈ 15.

Citation Download Citation

Gunnar Rustad, Stephane Nicolas, Ørnulf Nordseth, and Gunnar Arisholm "High pulse energy mid-infrared laser source", Proc. SPIE 5989, Technologies for Optical Countermeasures II; Femtosecond Phenomena II; and Passive Millimetre-Wave and Terahertz Imaging II, 598904 (3 November 2005); https://doi.org/10.1117/12.629870

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