Anisotropic ZnS:Cr2+ crystal: material for compact and efficient mid-IR tunable lasers

A laser-quality anisotropic ZnS:Cr2+ element was obtained using prolonged hot isostatic pressing at high temperature. Lasing centered at a wavelength of 2.45 µm was obtained with longitudinal pumping at a wavelength of 1.94 µm. The short-cavity laser slope efficiency with respect to the absorbed pow...

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Bibliographic Details
Published in:Optics letters 2021-12, Vol.46 (23), p.5994-5997
Main Authors: Kurashkin, S V, Martynova, O V, Savin, D V, Ikonnikov, V B, Gavrishchuk, E M, Savikin, A P
Format: Article
Language:English
Subjects:
Heat treating
High temperature
Hot isostatic pressing
Lasing
Tunable lasers
Online Access:Get full text
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Summary:A laser-quality anisotropic ZnS:Cr2+ element was obtained using prolonged hot isostatic pressing at high temperature. Lasing centered at a wavelength of 2.45 µm was obtained with longitudinal pumping at a wavelength of 1.94 µm. The short-cavity laser slope efficiency with respect to the absorbed power was about 78%. The lasing wavelength was continuously tuned in the range of 2.35–2.52 µm by rotating the Brewster active element around the normal to its surface.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.437886