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Cr:LiSrAlF6 channel waveguides as broadband fluorescence sources

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<mark>Journal publication date</mark>07/2007
<mark>Journal</mark>Applied Physics B
Volume88
Number of pages5
Pages (from-to)205-209
Publication StatusPublished
Early online date26/06/07
<mark>Original language</mark>English

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.