Newly developed 1.7 μm band external cavity laser and its application to evaluation of ethanol concentration in distilled spirits


We developed a 1.7 pm band external cavity laser (ECL) that can supply an output power of over 0 dBm in the 1650 to 1740 nm wavelength region, and applied it to a near infrared spectroscopy system to evaluate the ethanol concentration of several commercially available distilled spirits. The evaluation of the distilled spirits was successful because the… (More)


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