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Quantification of different water species in acetone using a NIR-triple-wavelength fiber laser

2014; Optica Publishing Group; Volume: 22; Issue: 16 Linguagem: Inglês

10.1364/oe.22.019337

1094-4087

N.L. Andrews, Amy G. MacLean, John Saunders, Jack A. Barnes, Hans‐Peter Loock, Mohammed Saad, Chenglai Jia, Kishor Ramaswamy, Lawrence R. Chen,

Water Quality Monitoring and Analysis

A fiber laser using a thulium-doped ZBLAN gain medium was used to generate laser radiation simultaneously at 1461, 1505 and 1874 nm, with > 5 mW output power at each of the wavelengths.The laser was used to quantify the near-infrared absorption of liquid water in acetone.Additionally, near-infrared spectra were recorded using a broad band source and were interpreted using parallel factor (PARAFAC) analysis to rationalize the concentration-dependent peak shifts.