Gires-Tournois Interferometer Mirrors (GTI)

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Laserand offers GTI mirrors with controlled group delay dispersion (GDD) and high reflectivity for various applications. All coatings can be designed according customer specifications.

Clear Aperture, %	>90%
Coating Adhesion and Durability	Per MIL-C-675A
Diameter Tolerance, mm	+0.0/-0.1 mm
Laser Damage Threshold, J/cm²	>1 J/cm2 for 500 fs pulses at 1030 nm
Measured Reflectivity, %	Rsp>99.8% @1010 – 1080 nm, AOI=0°-10° Rsp>99.8% @700 – 900 nm, AOI=0°-10°
Protective chamfers	<0,25 mm x 45 deg
Surface Flatness	<λ/8 @ 632.8 nm
Surface Quality, S-D	20/10 S/D (10/5 S/D on request)
Thickness Tolerance, mm	±0.1 mm

Description

Details

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.

Features

Reflectivity up to 99,9%
Central wavelength tolerance up to 1%
GDD values ranges from 100 to 1500 fs2 for Yb:KGW, Yb:YAG laser type coatings according to customer specifications
Calculated and measured GDD curves are supplied with every batch

Name	Angle of Incidence (AOI), deg	Average GDD, fs^2	Size, mm	Substrate Material	Wavelength Range, nm	Price	Quantity
1-OS-2-0127-5-1000-[10B00]	0 - 10	-1000	Ø12.7 x 5	UVFS	1020 – 1060	US$357.50
1-OS-2-0127-5-150-[10A00]	0 - 10	-150	Ø12.7 x 5	UVFS	780 – 820	US$357.50
1-OS-2-0127-5-200-[10B00]	0 - 10	-200	Ø12.7 x 5	UVFS	1020 – 1060	US$357.50
1-OS-2-0127-5-250-[10A00]	0 - 10	-250	Ø12.7 x 5	UVFS	780 – 820	US$357.50
1-OS-2-0127-5-400-[10A00]	0 - 10	-400	Ø12.7 x 5	UVFS	780 – 820	US$357.50
1-OS-2-0127-5-400-[10B00]	0 - 10	-400	Ø12.7 x 5	UVFS	1020 – 1060	US$357.50
1-OS-2-0127-5-600-[10B00]	0 - 10	-600	Ø12.7 x 5	UVFS	1020 – 1060	US$357.50
1-OS-2-0254-5-1000-[10B00]	0 - 10	-1000	Ø25.4 x 5	UVFS	1020 – 1060	US$507.00
1-OS-2-0254-5-150-[10A00]	0 - 10	-150	Ø25.4 x 5	UVFS	780 – 820	US$507.00
1-OS-2-0254-5-200-[10B00]	0 - 10	-200	Ø25.4 x 5	UVFS	1020 – 1060	US$507.00
1-OS-2-0254-5-250-[10A00]	0 - 10	-250	Ø25.4 x 5	UVFS	780 – 820	US$507.00
1-OS-2-0254-5-400-[10A00]	0 - 10	-400	Ø25.4 x 5	UVFS	780 – 820	US$507.00
1-OS-2-0254-5-400-[10B00]	0 - 10	-400	Ø25.4 x 5	UVFS	1020 – 1060	US$507.00
1-OS-2-0254-5-600-[10B00]	0 - 10	-600	Ø25.4 x 5	UVFS	1020 – 1060	US$507.00