A Gires-Tournois mirror for dispersion compensation in the Ti-sapphire laser system | Zendy

Qing Zhang | Zendy; Peng Ye | Zendy; Wei Zhi-Yi | Zendy; Qun Ma | Zendy; Shuna Zhang | Zendy; Yueguang Zhang | Zendy; Wenjia Yuan | Zendy; Weidong Shen | Zendy; Zhenyue Luo | Zendy; Xü Liu | Zendy

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A Gires-Tournois mirror for dispersion compensation in the Ti-sapphire laser system

Author(s) -

Qing Zhang,

Peng Ye,

Wei Zhi-Yi,

Qun Ma,

Shuna Zhang,

Yueguang Zhang,

Wenjia Yuan,

Weidong Shen,

Zhenyue Luo,

Xü Liu

Publication year - 2011

Publication title -

acta physica sinica

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.199

H-Index - 47

ISSN - 1000-3290

DOI - 10.7498/aps.60.027804

Subject(s) - femtosecond , materials science , sapphire , optics , laser , dispersion (optics) , group delay dispersion , ti:sapphire laser , interferometry , optoelectronics , physics , optical fiber , fiber optic sensor , dispersion shifted fiber

A Gires-Tournois(GT) mirror with a group delay dispersion (GDD) of -60 fs2 in one reflection was designed according to the requirement of dispersion compensation in the Ti-sapphire femtosecond laser system. It was manufactured by ion assisted deposition combined with the optical monitoring in transmission. The reflectance of the mirror was measured by a spectrophometer working in the range from 650 nm to 950 nm with a resolution of 1 nm. The results were consistent with the design. Furthermore, a home-made white light interferometry system was employed to test the reflection GDD and the result also agreed well with the design. The experimental GDD oscillation was less than ± 20 fs2. The GT mirror was applied in the Ti-sapphire femtosecond laser system and a good clamping result was obtained. Finally a 29 fs ultra-short pulse was acquired.

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