Design, production, and reverse engineering of a double sided innovative thin film laser element

Michael Trubetskov; Tatiana Amotchkina; Alexander Tikhonravov; Laszlo Veisz; Vladimir Pervak

doi:10.1117/12.2191120

23 September 2015 Design, production, and reverse engineering of a double sided innovative thin film laser element

Michael Trubetskov, Tatiana Amotchkina, Alexander Tikhonravov, Laszlo Veisz, Vladimir Pervak

Proceedings Volume 9627, Optical Systems Design 2015: Advances in Optical Thin Films V; 96270X (2015) https://doi.org/10.1117/12.2191120
Event: SPIE Optical Systems Design, 2015, Jena, Germany

Abstract

In the present work, an innovative optical element developed for the multiterawatt few-cycle light wave synthesizer based on optical parametric amplification is demonstrated. The synthesizer currently produces sub-5-fs, 80-mJ, 18-TW pulses. The required element had to be deposited on 15 mm substrate having 75 mm in diameter; an average value of the GDD of +75 fs² and reflectance exceeding 99% in the spectral wavelength region from 570 to 1030 nm.

Mechanical stresses of the designed dispersive mirror (DM) caused the substrate bending that distorts wave front quality resulting in the distorting of the beam waveform of laser system. In order to compensate this mechanical stress, the substrate back side was covered by an antireflection coating providing the lowest possible reflection in the working spectral range, having the total physical thickness close to DM thickness and total thicknesses of Nb₂O₅/SiO₂ layers close to the corresponding total thicknesses of Nb₂O₅/SiO₂ in DM. The produced DM-AR optical element exhibits excellent spectral properties.

Citation Download Citation

Michael Trubetskov, Tatiana Amotchkina, Alexander Tikhonravov, Laszlo Veisz, and Vladimir Pervak "Design, production, and reverse engineering of a double sided innovative thin film laser element", Proc. SPIE 9627, Optical Systems Design 2015: Advances in Optical Thin Films V, 96270X (23 September 2015); https://doi.org/10.1117/12.2191120

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