Bioptigen, Inc.

#1 a Lifesafer, Inc.

David Hamo

Joseph A Izatt

Eric L Buckland

James Hu

James Dunn

Nicholas M Trainor

Jeffrey Vatter

Scott A Galvin

Louis Urani

William H Collins

A chemical impairment detection system adaptable for use in a vehicle. The impairment detection system includes an intake adapted to receive an air sample from a source and an alcohol sensor for detecting an alcohol level in the air sample. An integrated breath chamber channels the air sample from the intake to the alcohol sensor. Source evaluator means in the breath chamber measure one or more characteristics of the received air sample for validating the sample. The source evaluator means measures the air sample characteristics as the air sample flows through the breath chamber.

Chemical impairment detection system with an integrated, multi-function breath chamber

Methods, fourier domain optical coherence tomography (FDOCT) interferometers and computer program products are provided for removing undesired artifacts in FDOCT systems using continuous phase modulation. A variable phase delay is introduced between a reference arm and a sample arm of an FDOCT interferometer using continuous phase modulation. Two or more spectral interferograms having different phase delay integration times are generated. The spectral interferograms are combined using signal processing to remove the undesired artifacts. Systems and methods for switching between stepped and continuous phase shifting Fourier domain optical coherence tomography (FDOCT) and polarization-sensitive optical coherence tomography (PSOCT) are also provided herein.

Methods and systems for removing undesired artifacts in fourier domain optical coherence tomography (FDOCT) systems using continuous phase modulation and related phase modulators

Methods, systems and computer program products for removing undesired artifacts in fourier domain optical coherence tomography (FDOCT) systems using continuous phase modulation and related phase modulators

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Raleigh, NC, United States of America

David Hamo