Growth and Spectral Properties of Ho3+,Tm3+ Codoped BaY2F8 Laser Crystal

Fan Ming Zeng; Guang Tian Zou; Jing He Liu

doi:10.4028/www.scientific.net/AMR.569.128

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 569Growth and Spectral Properties of Ho3+,Tm3+...

Growth and Spectral Properties of Ho³⁺,Tm³⁺ Codoped BaY₂F₈ Laser Crystal

Abstract:

Ho3+:Tm3+:BaY2F8(Ho:Tm:BYF) laser crystal was grown by Czochralski method. The technical parameters as follows: the seeding temperature is 955°C; the pulling rate is 0.5mm/h; the rotation rate is 5rad/min; the cooling rate is 15°C/h; the period of growth is 6d. According to the spectra of crystal sample, the strongest absorption peak exists at 781nm, and the absorption cross section is 6.16×10-21cm2. While the strongest emission peak exists at 2056nm with the FWHM of 38nm, and the emission cross section is 4.05×10-21cm2, and the emission mechanism at 2056nm was analyzed based on energy level diagram of Ho3+ and Tm3+ ions.

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Periodical:

Advanced Materials Research (Volume 569)

Pages:

128-131

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.569.128

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Online since:

September 2012

Authors:

Fan Ming Zeng, Guang Tian Zou, Jing He Liu

Keywords:

Crystal Growth, Czochralski Method, Ho³⁺:Tm³⁺:BaY₂F₈ Crystal, Spectral Properties

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