Tm3+ and Ho3+ colasing in in-band pumped waveguides fabricated by femtosecond laser writing

We report on the first, to the best of our knowledge, in-band pumped Tm3+, Ho3+ codoped waveguide (WG) laser. A depressed-index surface channel WG (type III) with a 50 µm half-ring cladding is fabricated in a 5 at. % Tm3+, 0.5 at. % Ho3+ : KLu(WO4)2 crystal by femtosecond pulse direct laser writing....

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Veröffentlicht in:	Optics letters 2021-01, Vol.46 (1), p.122-125
Hauptverfasser:	Kifle, Esrom, Loiko, Pavel, Romero, Carolina, de Aldana, Javier Rodríguez Vázquez, Zakharov, Viktor, Gurova, Yulia, Veniaminov, Andrey, Petrov, Valentin, Griebner, Uwe, Thouroude, Romain, Laroche, Mathieu, Camy, Patrice, Aguiló, Magdalena, Díaz, Francesc, Mateos, Xavier
Format:	Artikel
Sprache:	eng
Schlagworte:	Direct laser writing Energy transfer Femtosecond pulses Fiber lasers Holmium Laser pumping Lasers Raman lasers Thulium Waveguides
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