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Measurement of group delay with high temporal and spectral resolution

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Abstract

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.

© 1990 Optical Society of America

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