Electronics Letters · 1995 · 29 citations · 4 references
Room temperature continuous-wave upconversion laser oscillation at 635 nm is reported for a Yb3+ sensitised Pr3+-doped fluorozirconate fibre cavity pumped by a single semiconductor laser operating at a wavelength near 860 nm. Using a similar setup, upconversion lasing at a wavelength of 602 nm has also been obtained.
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Laser-diode-pumped red and green upconversion fibre lasers
David Piehler, Dawn Craven, N. Kwong et al. · Electronics Letters · 1993 · 41 citations