Mv. Plissi et al., LOW-COHERENCE INTERFEROMETRIC SENSOR SYSTEM UTILIZING AN INTEGRATED-OPTICS CONFIGURATION, Applied optics, 34(22), 1995, pp. 4735-4739
implementation of a twin Mach-Zehnder reference interferometer in an i
ntegrated optics substrate is described. From measurements of the frin
ge visibilities, an identification of the fringe order is attempted as
a way to provide an absolute sensor for any parameter capable of modi
fying the difference in path length between two interfering optical pa
ths.