Optical absorption and emission properties of Nddoped fluorophosphates glass for broadband fiber amplifier applications
نویسندگان
چکیده
A new series of fluorophosphates glass is developed which can be doped with an extremely high concentration of Nd. The dopant concentration dependence of optical absorption and emission properties is reported here for the concentration range of 2.5x10 to 1.25x10 (ions/cm). Absorption and emission measurements are performed in order to evaluate the spontaneous emission probability, absorption cross-section, emission cross-section, and laser performance parameters. The stimulated emission cross section for the F3/2→I13/2 transition increases from 1.14 to 1.64 (x10 cm) and for the F3/2→I11/2 transition from 3.68 to 6.68 (x10 cm) in the MBBA/NdI and the MBBA/NdII, respectively. The extraction efficiency was recorded in the range of 1.91 2.73 for F3/2→I13/2 and of 6.18 9.41 for F3/2→I11/2 for the MBBA/NdI and the MBBA/NdII, respectively. The new (Mg, Ba)F2-based fluorophosphates glass (MBBA system) is promising for broadband compact optical fiber and waveguide amplifier applications. Keyword: Spontaneous emission probability, Absorption cross-section, Emission cross-section, Fluorophosphates
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*Correspondence: Guoping Dong and Jianrong Qiu, State Key Laboratory of Luminescent Materials and Device, School of Materials Science and Engineering, South China University of Technology, Wushan Road 381, Tianhe District, Guangzhou, Guangzhou 510640, China e-mail: [email protected]; [email protected] Quantum dot (QD)-doped glasses have been the hotspot for their excellent electronic and optical pr...
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