1.
Opt Express
; 23(22): 28282-7, 2015 Nov 02.
Artículo
en Inglés
| MEDLINE
| ID: mdl-26561099
RESUMEN
We demonstrate a 60µm core diameter Yb free Er-La-Al doped single-trench fiber having a 0.038 ultra-low-NA, fabricated using conventional MCVD process in conjunction with solution doping technique. Numerical simulations predict an effective single mode operation with effective area varying from 1,820µm(2) to 1,960µm(2) (taking bend-induced modal distortion into account) for different thicknesses of trenches and resonant rings at a constant bend radius of 25cm. Moreover, all solid structure favors easy cleaving and splicing. Experimental measurements demonstrate a robust effective single mode operation. Furthermore, with a 4%-4% laser cavity, this fiber shows a record efficiency of 46% with respect to the absorbed pump power.
2.
Rev Clin Esp
; 169(5-6): 339-41, 1983.
Artículo
en Español
| MEDLINE
| ID: mdl-6622782