Efficient tunable laser operation of Tm:KGd(WO4)2 in the continuous-wave regime at room temperature

Tm:KGd(WO/sub 4/)/sub 2/ is studied as a three-level laser on the /sup 3/F/sub 4/ /spl rarr/ /sup 3/H/sub 6/ transition and a tunable source in the 2-/spl mu/m spectral range, operating at room temperature. An overall tunability extending from 1790 to 2042 nm is achieved with maximum output powers o...

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Detalhes bibliográficos
Autores: Petrov, Valentin, Güell Vilà, Frank, Massons, Jaume, Gavaldà, Josefina, Solé i Cartañá, Rosa Ma., Aguiló Díaz, Magdalena, Díaz, Francesc (Díaz González), Griebner, Uwe
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2004
País:España
Recursos:Universidad de Barcelona
Repositorio:Dipòsit Digital de la UB
OAI Identifier:oai:diposit.ub.edu:2445/8755
Acesso em linha:https://hdl.handle.net/2445/8755
Access Level:acceso abierto
Palavra-chave:Làsers
Gadolinium compounds
Laser transitions
Laser tuning
Optical materials
Optical pumping
Potassium compounds
Solid lasers
Thulium
Descrição
Resumo:Tm:KGd(WO/sub 4/)/sub 2/ is studied as a three-level laser on the /sup 3/F/sub 4/ /spl rarr/ /sup 3/H/sub 6/ transition and a tunable source in the 2-/spl mu/m spectral range, operating at room temperature. An overall tunability extending from 1790 to 2042 nm is achieved with maximum output powers of 400 mW for an absorbed pump power of 1 W. Various doping levels, pump wavelengths and polarization configurations are compared and the advantages of the monoclinic double tungstates over other Tm-hosts are outlined.