Abstract

Abstract A new glass of Gd 2 O 3 –B 2 O 3 –SiO 2 –Na 2 O–Er 2 O 3 system is prepared and the formation range of the glass is experimentally obtained. Excellent thermal stability of the glass has been demonstrated using differential thermal analysis. Effects of the B 2 O 3 content on the infrared spectral properties such as the 1.5 μm emission bandwidth and the Judd–Ofelt parameter Ω t ( t = 2, 4, 6) of Er 3+ ions in the glass has been observed. The glass exhibits a large integrated emission cross sections for the 1.5 μm emission band. The Er 3+ -doped gadolinium borosilicate glass is a great candidate for broadband erbium doped fiber amplifiers.

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