Gires-Tournois-Interferometer (GTI) Spiegel

Gires-Tournois-Interferometer (GTI) Spiegel

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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
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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Average GDD, fs2 Dimensions AOI, deg Material Wavelength range, nm Delivery Product ID Price Action
-150 Ø12.7 x 5 0 - 10 UVFS 780 – 820 Request 1-OS-2-0127-5-150-[10A00] Request REQ
-200 Ø25.4 x 5 0 - 10 UVFS 1010 – 1050 Request 1-OS-2-0254-5-200-[10B00] Request REQ
-150 Ø25.4 x 5 0 - 10 UVFS 780 – 820 Request 1-OS-2-0254-5-150-[10A00] Request REQ
-200 Ø12.7 x 5 0 - 10 UVFS 1010 – 1050 Request 1-OS-2-0127-5-200-[10B00] Request REQ
-400 Ø12.7 x 5 0 - 10 UVFS 1015 – 1045 Request 1-OS-2-0127-5-400-[10B00] Request REQ
-600 Ø12.7 x 5 0 - 10 UVFS 1015 – 1045 Request 1-OS-2-0127-5-600-[10B00] Request REQ
-400 Ø25.4 x 5 0 - 10 UVFS 790 – 810 Request 1-OS-2-0254-5-400-[10A00] Request REQ
-600 Ø25.4 x 5 0 - 10 UVFS 1015 – 1045 Request 1-OS-2-0254-5-600-[10B00] Request REQ
-250 Ø12.7 x 5 0 - 10 UVFS 785 – 815 Request 1-OS-2-0127-5-250-[10A00] Request REQ
-250 Ø25.4 x 5 0 - 10 UVFS 785 – 815 Request 1-OS-2-0254-5-250-[10A00] Request REQ
-400 Ø12.7 x 5 0 - 10 UVFS 790 – 810 Request 1-OS-2-0127-5-400-[10A00] Request REQ
-400 Ø25.4 x 5 0 - 10 UVFS 1015 – 1045 Request 1-OS-2-0254-5-400-[10B00] Request REQ

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