Double Gires Tournois Interferometer Negative Dispersion Mirrors for Use in Tunable Modelocked Laserd
B Golubovic, R R. Austin, M K. Steiner-Shepard, M K. Reed, A G. van Engen, Scott Diddams
We report the design and operation of novel super-high reflectivity negative dispersion dielectric mirrors for use in tunable ultrafast laser systems. The mirror structure is divided into two distinct regions: an underlying super-high reflectivity dielectric quater wavelength stack, and an overlying negative dispersion section consisting of only a few layers and forming simple multiple Gires-Tournois Interferometers. The mirror structure presented in this paper was designed for operation from 800-900 nm and has a near constant group dispersion delay of -40 fs2 and a peak reflectivity greater than 99.99%. We show a comparison of the predicted and measured mirror performance and their application in a modelocked ti:sapphire laser tunable from 805-915 nm.
negative dispersion mirrors, ultrafast lasers
, Austin, R.
, Steiner-Shepard, M.
, Reed, M.
, van Engen, A.
and Diddams, S.
Double Gires Tournois Interferometer Negative Dispersion Mirrors for Use in Tunable Modelocked Laserd, Optics Letters
(Accessed October 3, 2023)