Low Group Velocity Dispersion (GVD)
Rs >99% from 700–930 nm
Rp >99% from 730–870 nm
Available in flat and concave
Tested up to 1 TW/cm2 peak power with 100 fsec pulses at 5 kHz at 800 nm
Our broadband low GVD ultrafast laser mirrors are ideal for use with ultrashort pulse Ti:Sapphire lasers as a high reflectance beamsteering mirror at 45° angle of incidence. Careful thin film design and an advanced coating process results in an ultrafast mirror with maximum reflectivity and bandwidth while having a minimum effect on pulse dispersion. Our low group velocity dispersion mirrors are available in 12.7 mm, 25.4 mm, and 50.8 mm diameters. We recommend the use of these ultrafast laser mirrors with pulse widths of 35 femto-seconds or higher. For shorter pulse widths, we recommend using UF.35S or UF.35P coated ultrafast super-broadband mirrors.
Our flat ultrafast laser mirrors are ideal for use with ultrashort pulse lasers as a high reflectance beamsteering mirror at 45° angle of incidence. Our concave ultrafast mirrors are available in 25.4 mm and 50.8 mm standard sizes.
Our UF.25 ultrafast mirror coating is designed to provide maximum reflectivity and bandwidth with minimum effect on pulse dispersion. This coating is intended for use with ultrashort pulse lasers as a high reflectance beamsteering mirror at 45° angle of incidence. Careful thin film design and an advanced coating process results in a broadband mirror with exceptional performance characteristics. Maximum reflectivity and bandwidth are attained by using these mirrors with s-polarized light.
Group velocity dispersion (GVD) and the cubic term of the phase expansion are shown for reference. True mirror performance can be affected by manufacturing tolerances and repeatability. Newport minimizes these effects with the use of state-of-the-art thin film production equipment and computer controlled processes. These mirrors have been successfully field tested at several university and industrial laboratories engaged in ultrafast studies and have been found to have high performance very closely matching these calculated curves.
Our ultrafast laser 45° mirrors have been laboratory tested for laser damage. They were found to withstand up to 1 TW/cm2 peak power with 100 fsec pulses at 5 kHz at 800 nm.
Click here to view data on popular mirrors used for ultrafast applications.
| Dimension (mm) | |||
| Model | øA | øB | C |
| 05B20UF.25 | 0.50 (12.7) | 10.2 | 9.65 |
| 10B20UF.25 | 1.00 (25.4) | 20.3 | 6.0 |
| 20B20UF.25 | 2.00 (50.8) | 40.6 | 9.4 |