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Broadband Spectra and Efficient Laser Performance of a Disordered Nd:Sr(0.7)La(0.3)Mg(0.3)Al(11.7)O(19) Crystal

Here, we demonstrate the broadband spectra and efficient laser performance of a disordered Nd:Sr(0.7)La(0.3)Mg(0.3)Al(11.7)O(19) (Nd:ASL) crystal. The polarized absorption and emission spectra were characterized and calculated with the Judd–Ofelt (J–O) theory, and the results show that this crystal...

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Detalles Bibliográficos
Autores principales: Zhang, Nana, Xu, Xiaodong, Pan, Yuxin, Liu, Jian
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6165235/
https://www.ncbi.nlm.nih.gov/pubmed/30200415
http://dx.doi.org/10.3390/ma11091575
Descripción
Sumario:Here, we demonstrate the broadband spectra and efficient laser performance of a disordered Nd:Sr(0.7)La(0.3)Mg(0.3)Al(11.7)O(19) (Nd:ASL) crystal. The polarized absorption and emission spectra were characterized and calculated with the Judd–Ofelt (J–O) theory, and the results show that this crystal has relatively large σ polarized absorption and emission cross sections, with peak emission cross sections of 4.5 × 10(−20) cm(2) at 1051 nm and an emission width of 30 nm at 1074 nm, which are favorable for pulsed lasers. The laser-diode-pumped continuous-wave (CW) and passively Q-switched lasers at 1051 nm were realized for the first time to our best knowledge. For CW laser, the maximum output power was 1.95 W with the slope efficiency of 42.6%, and for the passive Q-switching, the maximum output power was 0.73 W with the pulse width of 7.96 ns and peak power of 5.64 W. The results demonstrate that Nd:ASL crystal is a potential candidate for lasers, especially high-peak pulsed lasers such as Q-switching and mode-locking.