Nanosecond high-pulse energy 1.57 μm KTA optical parametric amplifier with time delay

Huanhuan Li; Xiaolei Zhu; Xiuhuan Ma; Shiguang Li; Weibiao Chen

doi:10.3788/COL201513.111402

Journals >Chinese Optics Letters >Volume 13 >Issue 11 >Page 111402 > Article

Chinese Optics Letters
Vol. 13, Issue 11, 111402 (2015)

Nanosecond high-pulse energy 1.57 μm KTA optical parametric amplifier with time delay

Huanhuan Li¹, Xiaolei Zhu^2、*, Xiuhuan Ma², Shiguang Li², and Weibiao Chen²

Author Affiliations

¹College of Materials Science and Engineering, China JiLiang Universiy, Hangzhou 310018, China

²Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Shanghai 201800, China

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DOI: 10.3788/COL201513.111402 Cite this Article Set citation alerts

Huanhuan Li, Xiaolei Zhu, Xiuhuan Ma, Shiguang Li, Weibiao Chen. Nanosecond high-pulse energy 1.57 μm KTA optical parametric amplifier with time delay[J]. Chinese Optics Letters, 2015, 13(11): 111402 Copy Citation Text

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Abstract

An efficient two-stage

{KTiOAO}_{4}

optical parametric amplifier (OPA) system with walk-off-compensating alignment is designed. By introducing an extra time delay between the pump pulse and the signal pulse, this OPA architecture is capable of obtaining high optical conversion efficiency and high signal gain simultaneously. Finally, a maximum gain of 98 at the 1.57 μm wavelength is obtained with the signal beam quality of