Title :
2.7µm emission properties of Er3+/Nd3+-codoped fluorotellurite glasses
Author :
Yaoyao Ma ; Ya-Pei Peng ; Yanyan Guo ; Junjie Zhang
Author_Institution :
Key Lab. of Mater. for High Power Laser, Shanghai Inst. of Opt. & Fine Mech., Shanghai, China
Abstract :
Er3+ singly doped and Er3+/Nd3+-codoped fluorotellurite glasses are prepared by melt-quenching method. The 2.7 μm emission spectra of Er3+ ions in fluorotellurite glasses are investigated under 808nm excitation. The enhancement of Er3+ 2.7 μm emission shows that Nd3+ can be an effective sensitizer for Er3+ : 4I11/2→4I13/2 transition, and the energy transfer efficiency can be as large as 84%. The absorption and emission cross sections are calculated using Füchtbauer-Ladenburg equation and McCumber theory with large values of 1.62×10-20 cm2 and 1.11×10-20 cm2, respectively. The results suggest that the present glasses have potential applications in 2.7 μm laser materials.
Keywords :
aluminium compounds; erbium; erbium compounds; germanium compounds; glass structure; laser materials processing; lead compounds; neodymium; neodymium compounds; optical glass; quenching (thermal); tellurium compounds; Füchtbauer-Ladenburg equation; McCumber theory; TeO2-AlF3-PbF2-GeO2-ErF3-NdF3:Er3+,Nd3+; absorption; effective sensitizer; emission cross sections; emission properties; energy transfer; fluorotellurite glasses; laser materials; melt quenching; wavelength 2.7 mum; wavelength 808 nm; Absorption; Energy exchange; Glass; Ions; Laser theory; Optical fibers; 2.7µm; spectroscopic properties;
Conference_Titel :
Advanced Infocomm Technology (ICAIT), 2013 6th International Conference on
Conference_Location :
Hsinchu
Print_ISBN :
978-1-4799-0464-8
DOI :
10.1109/ICAIT.2013.6621542
