Issue 36, 2020

Growth, spectroscopic properties and efficient laser action of an Yb0.09Lu0.13Gd0.78Ca4O(BO3)3 crystal

Abstract

A new Yb-ion laser crystal of Yb0.09Lu0.13Gd0.78Ca4O(BO3)3 was grown by using the Czochralski method. The polarized absorption and emission spectra with respect to the three principal optic axes were obtained, with the maximum cross-section of the zero-phonon absorption and emission determined to be 1.90 × 10−20 cm2 (E//X) and 1.55 × 10−20 cm2 (E//X), respectively. An analysis of gain curves indicates the superiority of this crystal to Yb:GdCOB in realizing laser operation at the zero-phonon line of around 977 nm. Efficient continuous-wave laser action was achieved in the main emission band, generating an output power of 13.53 W with an optical-to-optical efficiency of 64.6%, and the slope efficiency amounting to 71%.

Graphical abstract: Growth, spectroscopic properties and efficient laser action of an Yb0.09Lu0.13Gd0.78Ca4O(BO3)3 crystal

Article information

Article type
Paper
Submitted
25 Jun 2020
Accepted
31 Jul 2020
First published
05 Aug 2020

CrystEngComm, 2020,22, 6026-6033

Growth, spectroscopic properties and efficient laser action of an Yb0.09Lu0.13Gd0.78Ca4O(BO3)3 crystal

F. Liu, L. Dong, J. Chen, S. Cao, H. Xu and J. Liu, CrystEngComm, 2020, 22, 6026 DOI: 10.1039/D0CE00907E

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