Enhanced 1.53-μm emission and lowered upconversion of Er3+-doped gallate–lead–bismuth–germanium glass by rare-earth co-doping

✍ Scribed by Y.Z. Li; Q.Y. Zhang; D.M. Shi; Q. Qian; S.H. Xu

• Publisher: Elsevier Science
• Year: 2009
• Tongue: English
• Weight: 522 KB
• Volume: 32
• Category: Article
• ISSN: 0925-3467
• DOI: 10.1016/j.optmat.2009.08.016

✦ Synopsis

We have investigated spectroscopic properties and energy transfer (ET) of Er 3+ /RE 3+ (RE 3+ = Ce 3+ , Tb 3+ , and Eu 3+ ) codoped Ga 2 O 3 -PbO-Bi 2 O 3 -GeO 2 (GPBG) glass. An intense 1.53-lm emission with a full width at half-maximum (FWHM) of 48 nm and a peak emission cross-section of 1.14 Â 10 À20 cm 2 of Er 3+ -doped GPBG glass has been obtained upon 980 nm diode-laser excitation. Effects of rare-earths RE 3+ (RE 3+ = Ce 3+ , Tb 3+ , and Eu 3+ ) co-doping on the spectroscopic properties of the GPBG glass have also been investigated. It is found that the incorporation of RE 3+ into Er 3+ -doped GPBG glass could effectively reduce upconversion (UC) emission. Moreover, co-doping Ce 3+ could also enhanced the 1.53-lm emission quite significantly, which makes Er 3+ -doped GPBG glass more attractive for using in 1.53-lm optical fiber amplifiers.