Broadband collimated generation in YAG:Yb crystal and ytterbium glass under LiF:F+2color center laser pumping

Autor:	Yu.V. Senatsky, N E Bykovsky
Rok vydání:	2008
Předmět:	Ytterbium Materials science Physics and Astronomy (miscellaneous) business.industry chemistry.chemical_element Laser pumping Nanosecond Laser Collimated light law.invention Phosphate glass Optics chemistry Brillouin scattering law Optoelectronics business Instrumentation Lasing threshold
Zdroj:	Laser Physics Letters. 5:664-670
ISSN:	1612-202X 1612-2011
Popis:	Nanosecond pulses of broadband collimated generation in the wavelength region of 1.0–1.06 μm were observed at focusing the pump radiation from LiF:F2+ color center laser onto the plates from YAG:Yb crystal or Yb-doped phosphate glass. Spectra of the widths up to 200 A for YAG:Yb and up to 500A for glass were registered. The angular divergence (10-3–10-4 rad) of broadband radiation from the emitting area of 100–200 μm in diameter was by 1–2 orders of magnitude smaller than the diffraction limit corresponding to this area. Physical mechanism responsible for the occurrence of highly collimated broadband lasing under stimulated Brillouin scattering (SBS) of the pump radiation in the active medium is discussed.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::862176227e92e450b92a66e80530f99d https://doi.org/10.1002/lapl.200810008 Zobrazit plný text záznamu Plný text