Double Gires–Tournois interferometer negative-dispersion mirrors for use in tunable mode-locked lasers

Abstract

We report the implementation and operation of novel superhigh-reflectivity negative-dispersion dielectric mirrors for use in tunable ultrafast laser systems. The mirror structure is divided into two distinct regions: an underlying superhigh-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 for operation from 800 to 900 nm and has a near-constant group-delay dispersion of -40 fs(2) and a peak reflectivity greater than 99.99%. We show a comparison of the predicted and the measured mirror performance and application of these mirrors in a mode-locked Ti:sapphire laser tunable from 805 to 915 nm.

Dispersive mirror technology for ultrafast lasers in the range 220–4500 nm

“…These DMs possess unique dispersive properties (see Figure 1) [5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21][22][23][27][28][29][30][31][32][33][34]. This progress opens a new perspective to the synthesis of arbitrary light fields [2,4] and to the exploration of electron/atom interaction [3,35] on a new level of knowledge, as well as to the evolution of tools for biological, chemical, and ecological studies.…”

“…(GTI) mirrors [5,37] -two high-reflecting structures separated by a cavity with thickness close to half wavelength of the incident radiation resonantly enclose the impinging wave. Such nanoscale GTI embedded in the multilayer structure can introduce large GDs at selected wavelengths.…”

“…During the last 20 years, dispersive mirror (DM) technology [1,[5][6][7][8][9][10][11][12][13][14][15][16][17] has become very popular in femto-and attosecond physics [4,3]. Nowadays, the majority of femtosecond lasers include DM optics, which provides an accurate group delay (GD) or group delay dispersion (GDD) control of different wavelength components.…”

Dispersive mirror compressor for chirped pulse amplifiers

“…As an alternative we report on a new generation of dispersive dielectric multilayer mirrors, the development of which has been made possible by the evolution of the design and fabrication technology 6,[8][9][10][11][12][13][14][15][16] of the last 15 years.…”

Dispersion tailoring in both integrated photonics and fiber-optic based devices

“…Finally, Gires-Tournois interferometers present a tunable periodic time delay dependent of the distance between the interferometer mirrors. Dispersion management is carried out by varying the light input angle to the interferometer [36]. This method presents high insertion losses.…”