Design and Analysis Gires-Tournois-Interferometer Mirrors

Amer B.Dheyab, Gaillan H. Abdullah, Haider Y. Hammod, Ali Hassan

Abstract


We report the implementation and operation of GTI with high-reflectivity negative-dispersion dielectric mirrors for use in tunable ultrafast laser systems. The mirror structure is divided into two distinct regions: an underlying high-reflectivity dielectric quarter-wavelength stack and an overlying negative-dispersion section consisting of only a few layers and forming simple multiple Gires–Tournois interferometers. The example that we present was designed two structures with different spacers for operation from 670-860 nmand680-840nm has a near-constant group-delay dispersion of ±3000fs2and a peak reflectivity greater than 98%. We can usingand application of these mirrors in a mode-locked Ti: Sapphire laser.

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DOI: http://doi.org/10.11591/ijeecs.v12.i10.pp7209-7213
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