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Reflectivity up to 99.9% |
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Central wavelength tolerance up to 1% |
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GDD values ranges from 100 fs2 to 1500 fs2 for Yb:KGW, Yb:YAG laser type coatings |
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GDD - Group Delay Dispersion |
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Gires-Tournois interferometer (GTI) is an optical standingwave
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.
Standard Specifications
| Material | UVFS |
| Substrate Dimension Tolerance | +0.0, -0.1 mm |
| Substrate Wavefront Distortion | <λ/8@632.8 nm |
| Surface Quality | 20-10 S-D (10-5 S-D on request) |
| Clear Aperture | >90% |
| Measured Reflectivity | Rsp>99.8% @ 1010 nm - 1080 nm, AOI=0°-10°
Rsp>99.8% @ 700 nm - 900 nm, AOI=0°-10° |
| Laser Damage Threshold | >1 J/cm2 for 500 fs pulses @ 1030 nm |
| Coating Adhesion and Durability | Per MIL-C-675A |
Gires-Tournois Interferometer Mirrors
| Wavelength, nm | Average GDD, fs2 | AOI | Ordering Code |
| Ø12.7x5 mm | Ø25.4x5 mm |
| 780 - 820 | -150 | 0° - 10° | 14DM-05-GTI1-5-150 | 14DM-1-GTI1-5-150 |
| 785 - 815 | -250 | 0° - 10° | 14DM-05-GTI1-5-250 | 14DM-1-GTI1-5-250 |
| 790 - 810 | -400 | 0° - 10° | 14DM-05-GTI1-5-400 | 14DM-1-GTI1-5-400 |
| 1010 - 1050 | -200 | 0° - 10° | 14DM-05-GTI2-5-200 | 14DM-1-GTI2-5-200 |
| 1015 - 1045 | -400 | 0° - 10° | 14DM-05-GTI2-5-400 | 14DM-1-GTI2-5-400 |
| 1015 - 1045 | -600 | 0° - 10° | 14DM-05-GTI2-5-600 | 14DM-1-GTI2-5-600 |
Ordering
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