Title :
Optimized design of high power mid-infrared Er3+, Pr3+-codoped ZBLAN fiber laser
Author :
Li, Jianfeng ; Jackson, Stuart D. ; Chen, Ming ; Chen, Hao ; Liu, Yongzhi
Author_Institution :
Sch. of Optoelectron. Inf., Univ. of Electron. Sci. & Technol. of China(UESTC), Chengdu, China
Abstract :
Based on the rate equations describing the operation of the Er3+, Pr3+-codoped ZBLAN fiber lasers with different pump configurations, theoretical calculations that relate to the population characteristics and optimization of CW operation of high power Er3+, Pr3+:ZBLAN double-clad fiber lasers are presented. Using the measured ET (energy-transfer), ETU (energy-transfer-upconversion) and CR (cross-relaxation) parameters relevant to Er3+, Pr3+-codoped ZBLAN, a good agreement between the theoretical results from the model and recently reported experimental measurements is obtained. The effects on the slope efficiency of a number of laser parameters including fiber length, reflectance of the output mirror and pumping configuration are quantitatively analyzed and used for the design and optimization of high power Er3+, Pr3+-codoped ZBLAN fiber lasers.
Keywords :
erbium; fibre lasers; fluoride glasses; laser beams; laser mirrors; optical design techniques; optical fibre cladding; optical glass; optical pumping; praseodymium; CW operation; ZrF4-BaF2-LaF4-AlF3-NaF:Er,Pr; codoped ZBLAN Fiber Laser; cross-relaxation; energy-transfer-upconversion; fiber length; high power double-clad midinfrared fiber lasers; laser mirror; laser parameters; population properties; pump configurations; rate equations; slope efficiency; Erbium-doped fiber lasers; Laser excitation; Laser theory; Laser transitions; Power lasers; Pump lasers; Semiconductor lasers;
Conference_Titel :
Photonics Global Conference (PGC), 2010
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-9882-6
DOI :
10.1109/PGC.2010.5706052
