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Ultrabroad emission from a bismuth doped chalcogenide glass

Hughes, MA, Akada, T, Suzuki, T, Ohishi, Y and Hewak, DW 2009, 'Ultrabroad emission from a bismuth doped chalcogenide glass' , Optics Express, 17 (22) , pp. 19345-19355.

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We report emission from a bismuth doped chalcogenide glass which is flattened, has a full width at half maximum (FWHM) of 600 nm, peaks at 1300 nm and covers the entire telecommunications window. At cryogenic temperatures the FWHM reaches 850 nm. The quantum efficiency and lifetime were as high as 32% and 175 μs, respectively. We also report two new bismuth emission bands at 2000 and 2600 nm. Absorption bands at 680, 850, 1020 and 1180 nm were observed. The 1180 nm absorption band was previously unobserved. We suggest that the origin of the emission in Bi:GLS is Bi 2 2 − dimers.

Item Type: Article
Schools: Schools > School of Computing, Science and Engineering
Journal or Publication Title: Optics Express
Publisher: Optical Society of America
ISSN: 1094-4087
Related URLs:
Funders: MEXT
Depositing User: Dr Mark Hughes
Date Deposited: 11 Nov 2015 10:23
Last Modified: 05 Apr 2016 19:37

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