Buggy, Stephen J.; Murphy, Richard P.; James, Stephen W.; Tatam, Ralph P.
(International Society for Optical Engineering; 1999, 2007-12-31)
A cascaded long period grating Mach-Zehnder interferometer is used to monitor
the change in refractive index of a UV cured epoxy resin over a cure cycle.
Fourier techniques are used to calculate the phase shift and ...