Patent ID: 9625377
Date: 2017-04-18
CPC Classifications: G01J,G01N

Claim:
1. An analyser for identifying or verifying a liquid drug comprising a drug in a base liquid, the liquid drug having a liquid drug spectrum and the base liquid having a base liquid spectrum comprising at least one spectral characteristic feature between about 1300 nm and about 2000 nm, the analyser comprising: an integrated laser for emitting electromagnetic radiation at a liquid drug, the electromagnetic radiation comprising a plurality of different wavelengths spread across about 1300 nm to about 2000 nm, wherein at least one of the wavelengths is in the vicinity of or within a region spanning a wavelength of a spectral characteristic feature of the base liquid spectrum, the integrated laser comprising: a substrate, and two or more lasing media arranged on the substrate, each lasing medium emitted electromagnetic radiation at one of the plurality of different wavelengths, a detector that detects affected electromagnetic radiation resulting from the emitted electromagnetic radiation affected by the liquid drug and provides output representing spectral information of the liquid drug spectrum at the wavelengths, and a processor configured to identify or verify the liquid drug from the detector output by: