Abstract
We report on the production and fluorescence of active channel waveguides in Cr:LiSrAlF6. We have produced ∼10 μm wide and 5 μm high channel waveguides by He+ ion implantation, lithographic patterning and subsequent Ar+ ion sputtering. Diode-pumped waveguides emitted 13 μW of fluorescence light with a spectrum ranging from 760 nm to 900 nm at a pump power of 165 mW and a pump wavelength of 660 nm. The compact and cheap optical pump source is a main advantage of this fluorescence material. This makes Cr:LiSrAlF6 channel waveguides a suitable candidate for a broadband fluorescence source in low-coherence interferometry and other applications in the near-infrared wavelength range.
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42.70.Hj; 42.79.Gn; 42.30.Wb
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Majkić, A., Poberaj, G., Degl’Innocenti, R. et al. Cr:LiSrAlF6 channel waveguides as broadband fluorescence sources. Appl. Phys. B 88, 205–209 (2007). https://doi.org/10.1007/s00340-007-2708-5
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DOI: https://doi.org/10.1007/s00340-007-2708-5