Integrated Optical Output-grating-coupler Sensor

Abstract

RECIPROCITT GUTLI NE -INPUT COUPLER OUTPUT W W L E R RECIPROCITY BETWEEN INPUT AND OUTPUT GRATING COUPLERS . O U T W T VERSUS INPUT COUPLERS AS SENSORS . OUTPUT COUPLER SENSOR WITH No MOVING PARTS: RESOLUTION. DYNAMIC RANGE. EXPERIMENTAL SET-UP . OIPCOATED SI02-T102 WAVEGUIDES WITH EMBOSSED SURFACE RELIEF GRATINGS . S E N S I T I V I T I E S OF THE SENSOR: 1) AS A DIFFERENTIAL REFRACTOMETER. AND 2) FOR ADSORPTION-DESORPTION OF MOLECULES . SELECTIVITY AND (BI0)CHEMICAL SENSORS . PRELIMINARY RESULTS