Effect of composition on clustering in Er-doped fiber lasers

摘要

Abstract: 11Erbium Doped Fiber Laser (EDFL) experimental slope efficiencies are used in conjunction with a paired ion model to estimate the percentage of paired ions in a fiber as a function of the erbium concentration. These percentages are compiled with other published results to derive a dependence of percentage of pairs on the aluminum co-dopant concentration. A mole ion concentration ratio of 20 aluminum to 1 erbium is found to greatly reduce pairing. Higher ratios are found to have minimal added benefit. !9