Investigation on Nd:Sr5(PO4)3F Single Crystal

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Investigation on Nd:Sr₅(PO₄)₃F Single Crystal

MENG Xian-Lin¹; ZHU Li¹; ZHANG Huai-Jin¹; ZHANG Hong-Zhen¹; YANG Zhao-He¹; WANG Pu²; Dawes J²; WANG Chang－Qing³; CHOW Y T³

1.National Laboratory of Crystal Materials and institute of Crystal Materials; ShandongUniversity Jinan 250100 China; 2. Centre for Lasers and Applications; Macquarie University, Sydney, NSW2109, Australia; 3. Department of Electronic Engineering, City University of Hong Kong, Tat Chee Avenue Kowloon Hongkong China

Received:1998-01-20 Revised:1998-04-09 Published:1998-12-20 Online:1998-12-20

Abstract

Abstract: The growth, structure, spectra, laser preperties and some physical properties of a new laser crystal Nd:Sr₅(PO₄)₃F (Nd:SFAP) were
studied in order to search and evaluate the applications of the crystal to laser. The Nd:SFAP single crystals were successfully grown by Czochralski method and the laser experiment of the crystal crystal pumped by laser diode
(LD) was demonstrated. The properties of as-grown crystal were measured by advanced equipments. Experimental results showed that Effective distribution
coeffcient K_effof Nd was 0.52. π polarization light with wavelength of 806nm was the best pumping light. The fluorescence lifetime of 2 at % Nd:SFAP
crystal was 175μs. The pumping threshold of Nd:SFAP laser was 15mW and its slope efficiency was 31.8%. From the investigation we can draw a conchusion:
the Nd:SFAP crystal is an ideal laser mateiral for lower power lasers, but it isn’t suited to be applied to higher power lasers.

Key words: Nd:Sr₅(PO₄)₃F, crystal growth, spectrum, laser performance, laser

CLC Number:

MENG Xian-Lin,ZHU Li,ZHANG Huai-Jin,ZHANG Hong-Zhen,YANG Zhao-He,WANG Pu,Dawes J,WANG Chang－Qing,CHOW Y T. Investigation on Nd:Sr₅(PO₄)₃F Single Crystal[J]. Journal of Inorganic Materials.

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Investigation on Nd:Sr₅(PO₄)₃F Single Crystal

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