The frequency-dependent group delay of dielectric mirrors was measured by spectrally resolved white-light interferometry. Chirped mirrors and thin-film Gires – Tournois interferometers designed for dispersion control in a femtosecond Ti:sapphire laser oscillator – amplifier system were tested with a group-delay resolution of ±0.2 fs and a spectral resolution of ∼1 nm over the spectral range of 670 – 870 nm.
© 1995 Optical Society of America
Original Manuscript: October 6, 1994
Published: April 1, 1995
A. P. Kovács, R. Szipöcs, K. Osvay, and Zs. Bor, "Group-delay measurement on laser mirrors by spectrally resolved white-light interferometry," Opt. Lett. 20, 788-790 (1995)