Spectroscopy of the relaxation dynamics in Tm-Ho-fiber lasers

Author

Orsila, L. ; Kivistö, S. ; Herda, R. ; Okhotnikov, O.G.

Author_Institution

Tampere Univ. of Technol., Tampere

fYear

2007

fDate

17-22 June 2007

Firstpage

1

Lastpage

1

Abstract

Recent studies discover important parameters of thulium doped fiber. Particularly, the dependence of the emission efficiency on the doping level and transition cross section have been determined. Adding holmium as a co-dopant was shown to increase the pump absorption and to extend the thulium gain spectrum to longer wavelengths. The properties of host material and co-doping affect strongly the gain broadening and are used as an instrumental in designing the optical amplifiers, tunable and mode-locked laser systems.

Keywords

carrier relaxation time; doping profiles; fibre lasers; holmium; infrared spectra; laser beams; laser transitions; optical materials; spectral line broadening; thulium; JkJk:Tm,Ho; absorption spectrum; co-doping effect; doping level; gain broadening; pump absorption; thulium gain spectrum; thulium-holmium codoped fiber lasers; transition cross section; Absorption; Doping; Fiber lasers; Instruments; Laser transitions; Optical design; Optical materials; Pump lasers; Spectroscopy; Stimulated emission;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics, 2007 and the International Quantum Electronics Conference. CLEOE-IQEC 2007. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-0931-0

Electronic_ISBN

978-1-4244-0931-0

Type

conf

DOI

10.1109/CLEOE-IQEC.2007.4386196

Filename

4386196