Issue 41, 2021

Growth of a large-aperture mid-infrared nonlinear optical La3Nb0.5Ga5.5O14 crystal for optical parametric chirped-pulse amplification

Abstract

The optical parametric chirped-pulse amplification (OPCPA) technique is the key for achieving ultrahigh peak power lasers, whose development is hindered by the rare large aperture mid-infrared nonlinear crystals with high damage thresholds. Here, we present the growth and characterization of a La3Nb0.5Ga5.5O14 (LGN) crystal with a diameter up to 60 mm and high optical quality. Its broadband transparency up to 7.4 μm is attributed to the suppression of the second-order infrared absorption. This work not only provides a promising candidate for the mid-infrared OPCPA system, but also offers a new thought of properly designing nonlinear optical crystals from the perspective of structural properties.

Graphical abstract: Growth of a large-aperture mid-infrared nonlinear optical La3Nb0.5Ga5.5O14 crystal for optical parametric chirped-pulse amplification

Supplementary files

Article information

Article type
Paper
Submitted
13 juil. 2021
Accepted
17 août 2021
First published
17 août 2021

CrystEngComm, 2021,23, 7212-7218

Growth of a large-aperture mid-infrared nonlinear optical La3Nb0.5Ga5.5O14 crystal for optical parametric chirped-pulse amplification

Y. Wang, F. Liang, J. Wang, D. Lu, H. Yu and H. Zhang, CrystEngComm, 2021, 23, 7212 DOI: 10.1039/D1CE00919B

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