Patent ID: 9291505
Filing Date: 2016-03-22
CPC Classification: G01D,G01J,G01N

Claim Text:
1. An interferometer-based sensor system, comprising: a tunable laser configured to transmit a transmit signal; a polarization scrambler configured to change a polarization state of the transmit signal prior to each scan such that the polarization state of the transmit signal for one scan differs from the polarization state of the transmit signal for another scan; an interferometer configured to provide an output scan based on the transmit signal with the polarization state change for each scan, the interferometer comprising one or more fiber Bragg gratings (FBGs) and a reference reflector and the output scan resulting from interference between a reflection signal from the reference reflector with a reflection signal from one of the one or more FBGs; and a processor configured to process the output scan.