Ultraviolet upconversion in thulium-doped fluorozirconate fiber observed under two-color excitation
Optics Letters, Vol. 26, Issue 20, pp. 1580-1582 (2001)
http://dx.doi.org/10.1364/OL.26.001580
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Abstract
Ultraviolet upconversion signals at 293, 351, and 366 nm were observed from thulium-doped fluorozirconate fiber pumped with a 458-nm Ar+ laser. The upconversion signal's intensity was enhanced 5× when the fiber was simultaneously pumped with a 458-nm Ar+ laser and a 585-nm dye laser. There is evidence of the formation of defect centers under simultaneous excitation by visible and near-infrared lasers (458 and 750 nm), and there is no evidence of color-center formation when both of the exciting beams are in the visible (458 and 585 nm).
© 2001 Optical Society of America
[Optical Society of America ]
OCIS Codes
(060.2310) Fiber optics and optical communications : Fiber optics
(160.5690) Materials : Rare-earth-doped materials
(190.7220) Nonlinear optics : Upconversion
(300.6360) Spectroscopy : Spectroscopy, laser
Citation
Wenyan Tian and B. Rami Reddy, "Ultraviolet upconversion in thulium-doped fluorozirconate fiber observed under two-color excitation," Opt. Lett. 26, 1580-1582 (2001)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-26-20-1580
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