Optical parametric amplifier at 1572nm wavelength using KTiOAsO4 crystal

Huanhuan Li; Shiguang Li; Xiuhuan Ma; Juntao Wang; Xiaolei Zhu

doi:10.1117/12.2010763

16 May 2013 Optical parametric amplifier at 1572nm wavelength using KTiOAsO₄ crystal

Huanhuan Li, Shiguang Li, Xiuhuan Ma, Juntao Wang, Xiaolei Zhu

Proceedings Volume 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012); 87962B (2013) https://doi.org/10.1117/12.2010763
Event: 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 2012, Xi'an, Shaanxi, China

Abstract

We report on a nanosecond master oscillator /power amplifier architecture for optical parametric conversion of high pulse energy from 1.064μm to 1.572 μm in KTiOAsO4 crystal. The signal emission is amplified by two different parametric amplifier architectures respectively. By comparing the results obtained, a novel amplifier architecture is chosen which is expected to combine the high gain and good beam quality. With a seeding signal energy of 1 mJ, and 400mJ pump pulse at 100Hz, a gain up to 64 at 1.57μm with the beam quality M² less than 4.8 is realized. The total optical-optical conversion efficiency reached 16%.

Citation Download Citation

Huanhuan Li, Shiguang Li, Xiuhuan Ma, Juntao Wang, and Xiaolei Zhu "Optical parametric amplifier at 1572nm wavelength using KTiOAsO₄ crystal", Proc. SPIE 8796, 2nd International Symposium on Laser Interaction with Matter (LIMIS 2012), 87962B (16 May 2013); https://doi.org/10.1117/12.2010763

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