Patent ID: 7353055
Filing Date: 2008-04-01
Classification: A61B

Abstract:
1. A method for non-invasive measurement of an analyte in a target comprising: generating a first repetitive discrete coherent optical signal wherein the first repetitive discrete coherent optical signal is generated by a first mode-locked laser; applying at least part of said optical signal to the target to be analyzed, a portion of which will be scattered by the target; capturing at least part of said optical signal scattered by the target; generating a second repetitive discrete coherent optical signal wherein the second repetitive discrete coherent optical signal is a reference optical signal generated by a second mode-locked laser: combining the captured scattered optical signal with said reference optical signal; modifying the temporal coherence phase relationship between the captured scattered optical signal and said reference optical signal; detecting an interference signal between the captured scattered optical signal and said reference optical signal; analyzing the detected interference signal at multiple temporal relationships; and determining the analyte measurement.