FEMTOSECOND LASERS High repetition rate Tunable Wavelength Femtosecond OPCPA Systems UltraFlux HR series is a compact high repetition rate tunable wavelength femtosecond laser system which incorporates the advantages of dual output ultrafast fiber laser, solid-state and parametric chirped pulse amplification technologies. A novel OPCPA front-end technology uses a dual output picosecond fiber laser for seeding both picosecond DPSS pump laser and femtosecond parametric amplifier with a spectrally broadened output. This approach greatly simplifies the system - excludes femtosecond regenerative amplifier and eliminates the need of pump and seed pulse synchronization while ensuring practically zero jitter between the channels. In addition to that, contrast of the output pulses in picosecond to nanosecond time scale is enhanced. All UltraFlux series laser systems are assembled on a rigid breadboard or optical table to ensure excellent long-term stability. Modular internal design offers high level of customization and easy scalability. All of these systems can be customized according to customer requirements by adding custom specifications or multiple channels. Incorporation of parametric chirped pulse amplification technology together with a novel ultrafast fiber laser helped to create and bring to the market a new tool for femtosecond pump-probe, nonlinear spectroscopy, emerging high harmonic generation experiments and other femtosecond and nonlinear spectroscopy applications. With this laser ultrafast science breakthrough is closer to any photonics lab than ever before. ► Based on the novel OPCPA (Optical Parametric Chirped Pulse Amplification) technology ► Patented front-end design (patents no. EP2827461 and EP2924500) 250 - 320 nm and 210 - 230 nm wavelength tuning ranges ► Up to 14 mJ pulse energy at 1 kHz repetition rate - Excellent pulse energy stability: < 1 % RMS - Excellent long-term average power stability: < 1.5 % RMS over 8-hour period ► Perfectly synchronized fs and ps output option available ► Hands free wavelength tuning ► High contrast pulses without any additional improvement equipment Nanosecond Lasers Picosecond Lasers ► Femtosecond pump-probe spectroscopy ► High harmonic generation REV. 250117 SAVANORIU AV. 237, LT-02300 VILNIUS, LITHUANIA TEL +370 5 2649629 E-MAIL [email protected] WWW.EKSPLA.COM &EKSPLA 5

FEMTOSECOND LASERS UltraFlux HR SPECIFICATIONS Model FT031k FT31k FT61k FT141k Picosecond Lasers Nanosecond Lasers MAIN SPECIFICATIONS 11 Output energy 2) 1 Due to continuous improvement, all specifications are subject to change without notice. The parameters marked 'typical' are indications of typical performance and will vary with each unit we manufacture. Presented parameters can be customized to meet customer's requirements. 2 Maximum pulse energy specified at 840 nm, SH output at 420 nm, TH output at 280 nm and FH output at 210 nm. Harmonic outputs are optional. Specifications valid with...

FEMTOSECOND LASERS UltraFlux HR 4) Maximum pump energy for harmonics limited to 10 mJ @ 840 nm. 5) Optional extended tuning range of 700 -1010 nm available upon request. 6) Standard pulse duration changes though the wavelength range - shortest pulse duration is achieved ~840 nm spectral range. 7) Separate 'F10' option can be ordered to reduce pulse duration to < 10 fs. Wavelength tunability not available with 'F10' option. 8) Under stable environmental conditions, normalized to average pulse energy (RMS, averaged from 60 s). 9) Measured over 8 hours period after 30 min warm-up when ambient temperature...

FEMTOSECOND LASERS Femtosecond Femtosecond Lasers Lasers Picosecond Lasers Fig 6. Typical energy tuning curve of UltraFlux FT31k laser system Nanosecond Lasers Fig 5. Typical temporal contrast of UltraFlux systems Fig 4. Long-term power stability measurement at 800 nm wavelength Noise level Temporal contrast Psmooth / Pmean Fig 7. Typical energy tuning curves of UltraFlux FT31k second, third and fourth harmonic outputs Fig 8. Typical output spectra of UltraFlux FT31k system at multiple wavelengths Fig 9. Typical external view of UltraFlux FT031k system (actual design might vary)

FEMTOSECOND LASERS UltraFlux HR OUTLINE DRAWINGS 1208 Fig 10. Typical UltraFlux FT031k laser system external dimensions POWER SUPPLY Cabinet 11 Full height with wheels. Fig 11. Typical UltraFlux laser system power supply dimensions (MR rack used depends on the laser model) Nanosecond Lasers Picosecond Lasers ORDERING INFORMATION Note: Laser must be connected to the mains electricity all the time. If there will be no mains electricity for longer that 1 hour then laser (system) needs warm up for a few hours before switching on. Any additional options: See 'Options' table Fixed or tunable wavelength:...