Measurement of group delay with high temporal and spectral resolution.
We have developed a technique to measure the group-delay time of optical components with a temporal resolution of +/-0.1 fsec and a spectral resolution of 0.1 nm over the spectral region 600-640 nm. The group delay is determined from a measurement of the optical path length through the component as a function of wavelength with a phase-locked interferometer.
Beck
M
M
Walmsley
I A
IA