High-repetition frequency tunable Pharos-SP femtosecond laser system with the Orpheus / Lyra parametric amplifier

Unit: Faculty of Physics

Keywords: Femtosecond laser, parametric amplifier, high-repetition frequency, tunable wave length laser, numerical modelling, laser formation, artificial three-dimensional frame laser formation, laser formation of nanophotonic elements, Pharos, Orpheus, Lyra

Responsible person: Dr. Mangirdas Malinauskas

System is suitable for laser nanophotonics research.

1. Numerical modeling, laser formation, geometry and optical properties (focus, collimation, phase modulation) description of multifunctional (refractive / diffractive) and integrated (on the optical fiber tip) micro – optical elements (10 – 100 μm).
2. Artificial three-dimensional frame laser formation for cell biology and tissue engineering applications. Biologically inert and degrading polymers can be used, and a carcass can be produced of several different materials. The pore size and filling factor can be varied from 1 to 100 μm and 20-80%, respectively.
3. Laser formation of nanophotonic elements in polymers and transparent material. Two-dimensional and three-dimensional fixed and gradually variable period photonic crystals can be produced with the laser. Their period can be from 0.5 to 10 μm. Numerical modeling of these items and characterization of their light control properties. 

Properties of the femtosecond laser:
Central wavelength 1030 ± 10 nm;
Pulse repetition rate can be tuned in the 1-1000 kHz range;
Pulse duration ≤200 fs;
Average power ≥6W at 50-200 kHz;
Beam quality is M2≤1.3.

Properties of the parametric optical amplifier:
Tuning range is 350-2600 nm;
Maximum efficiency 15 % (signal+idler);
Conversion efficiency of integrated second harmonic generator is >50 % (515 nm).