Dielectric Coated Optics

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Product Catalog 2016


Laser optics direct from stock. All products are inspected at metrology laboratory, certified and delivered worldwide direct from European Union.

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Gires-Tournois Interferometer Mirrors (GTI)

Gires-Tournois Interferometer Mirrors (GTI)
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Diameter tolerance +0/-0.1 mm
Thickness tolerance ±0.1 mm
Clear aperture >90%
Surface quality 20-10 S-D
Surface flatness <λ/8 @ 632.8 nm
Protective chamfers <0.25 mm x 45°
Measured reflectivity Rsp>99.8% @1010 – 1080 nm, AOI=0°-10°
Rsp>99.8% @700 – 900 nm, AOI=0°-10°
Coating adhesion and durability Per MIL-C-675A
Laser damage threshold reports www.altechna.com/lidt
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Attention! You can customise this product to your needs.
A Gires–Tournois interferometer (GTI) is an optical standing-wave resonator designed for generating chromatic dispersion. GTI mirrors are used mainly for pulse compression in Yb:YAG, Yb:KGW femtosecond lasers, but can be optimized for other wavelengths, for example Ti:Sapphire laser system. Compared to prism or grating pulse compression systems GTI thin film mirrors exhibits lower losses and sensitivity to mechanical misalignment errors, thus enabling higher output power and stability of laser system.
varna Reflectivity up to 99,9%
varna Central wavelength tolerance up to 1%
varna GDD values ranges from 100 to 1500 fs2 for Yb:KGW, Yb:YAG laser type coatings according to customer specifications
varna Calculated and measured GDD curves are supplied with every batch

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