Title :
Evolution of lasing during FBG-inscription in a Yb-Al-doped laser fiber
Author :
Fiebrandt, J. ; Leich, M. ; Jetschke, S. ; Rothhardt, Manfred ; Jager, M. ; Bartelt, Hartmut
Author_Institution :
Inst. of Photonic Technol., Jena, Germany
Abstract :
A challenge in building monolithic fiber laser light sources is the characterization of their optical components, especially of the fiber Bragg gratings (FBG) within the actively doped fiber, which define the resonator. We propose an experimental technique to characterize such FBG under pumping conditions directly during FBG inscription. The observed dynamics are discussed considering different absorption processes, taking place during inscription and pumping. Furthermore, we study the laser performance at different pump powers and discuss observed changes in the laser spectra.
Keywords :
Bragg gratings; aluminium; fibre lasers; laser cavity resonators; optical pumping; ytterbium; FBG-inscription; SiO2:Yb,Al; Yb-Al-doped laser fiber; absorption process; actively doped fiber; fiber Bragg gratings; laser performance; laser spectra; monolithic fiber laser light sources; optical components; pump powers; pumping condition; resonator; Fiber gratings; Fiber lasers; Laser excitation; Power lasers; Pump lasers;
Conference_Titel :
Lasers and Electro-Optics Europe (CLEO EUROPE/IQEC), 2013 Conference on and International Quantum Electronics Conference
Conference_Location :
Munich
Print_ISBN :
978-1-4799-0593-5
DOI :
10.1109/CLEOE-IQEC.2013.6801296
