Comparative Analysis of Optical Damage in Advanced Barium Chalcogenides Nonlinear Crystals at 1-μm and 2-μm

Widely tunable optical parametric oscillators (OPOs) are attractive sources for applications in mid-IR due to the scarcity of direct-emitting conventional lasers in this spectral region. Recently, two new chalcogenide compounds BaGa 4 Se 7 (BGSe) and BaGaGe 2 Se 6 (BGGSe) having relatively high χ (2...

Full description

Saved in:

Bibliographic Details
Published in:	2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC) p. 1
Main Authors:	Kostyukova, Nadezhda Yu, Boyko, Andrey A., Eryshin, Evgeniy Yu, Kolker, Dmitry B., Antipov, Oleg L., Eranov, Ilya D., Isaenko, Lyudmila I., Badikov, Dmitry V., Badikov, Valery V.
Format:	Conference Proceeding
Language:	English
Published:	IEEE 01-06-2019
Subjects:	Crystals Fiber lasers Fiber nonlinear optics Optical pumping Pump lasers
Online Access:	Get full text
Tags:	Add Tag No Tags, Be the first to tag this record!

Description
Summary:	Widely tunable optical parametric oscillators (OPOs) are attractive sources for applications in mid-IR due to the scarcity of direct-emitting conventional lasers in this spectral region. Recently, two new chalcogenide compounds BaGa 4 Se 7 (BGSe) and BaGaGe 2 Se 6 (BGGSe) having relatively high χ (2) nonlinear optical coefficient were successfully synthesized and large single crystals were grown using the Bridgman-Stockbarger technique. Recently the first BGSe nanosecond OPO pumped by a Q-switched Nd:YAG laser (1.064 μm) [3] and pumped at 2.09 μm by a Q-switched Ho:YAG laser were demonstrated. Lastly, an intracavity pumped cascaded OPO based on BGGSe was reported. The continuous development and power-scaling of BGSe and BGGSe - based OPOs require study of their damage thresholds. This paper is devoted to a comparative analysis of optical damage of the BGSe and BGGSe nonlinear elements pumped by 1-μm or 2-μm laser radiations.
DOI:	10.1109/CLEOE-EQEC.2019.8873248