Pham, Thanh Binh Characteristics of the Fiber Laser Sensor System Based on Etched-Bragg Grating Sensing Probe for Determination of the Low Nitrate Concentration in Water. [electronic resource] - Sensors (Basel, Switzerland) Dec 2016 Publication Type: Journal Article ISSN: 1424-8220 Standard No.: 10.3390/s17010007 doi