Title :
Photodarkening mechanisms in ytterbium fiber lasers; a comparison of UV-induced losses in glass and crystalline materials
Author :
Rydberg, Sara C. ; Engholm, Magnus
Author_Institution :
Mid Sweden Univ., Sundsvall, Sweden
Abstract :
UV-induced absorption is investigated for three different ytterbium doped laser materials. It is found that the induced transmission loss originates from the formation of Yb2+-ions and hole-related defects.
Keywords :
aluminium; fibre lasers; optical fibre losses; optical glass; photochromism; silicon compounds; ultraviolet spectra; ytterbium; yttrium compounds; SiO2:Yb,Al; UV-innduced absorption losses; YAG:Yb; YAlO3:Yb; crystalline materials; glass materials; hole-related defects; photodarkening; transmission loss; ytterbium doped fiber laser materials; Absorption; Glass; Lasers; Silicon compounds; Spectral shape; Ytterbium;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2012 Conference on
Conference_Location :
San Jose, CA
Print_ISBN :
978-1-4673-1839-6
