Features
- High conversion efficiency
- Easy alignment
- Adaptable to different pulse widths and power levels
- Minimum pulse broadening
- Excellent pointing stability
- Flexible architecture
Overview
The product line HarmoniXX is a series of frequency converters for ultrafast lasers, in particular for Ti:Sapphire lasers, but available for other wavelength ranges as well. The flexible architecture of these devices allows for Second Harmonic Generation (SHG), Third Harmonic Generation (THG), and Fourth Harmonic Generation (FHG) as needed. Also, a version generating the difference frequency (DFG) from two input wavelengths is available. The modular instrument design focuses on user-friendliness and compactness, with automated wavelength tuning available.
The HarmoniXX is equipped with quickly exchangeable optics and works with an extremely wide range of different pulse widths; it can be used with tens of picoseconds as well as with pulses down to 100 fs. Great care has been applied to the optimization of the conversion efficiency over this large pulse width range. As a result these high conversion efficiencies can now be achieved at various power levels and with minimum pulse broadening. Unlike conventional triplers, the new
HarmoniXX THG needs no separation and recombination of the interacting beams. This user-friendly feature is due to the use of one common optical beam path for all interacting beams. It is implemented by means of a proprietary delay compensator and provides consistent spatial overlap for optimum efficiency
Specifications
Wavelength ranges1 | Ti: Sapphire | OPO Signal | |
Input | 680 … 1080 nm | 1000 … 1600 nm | |
SHG | 340 … 540 nm | 500 … 800 nm | |
THG | 227 … 360 nm | ||
FHG (2+2) Option | 210 … 230 nm | ||
FHG (3+1) Version | 190 … 210 nm | ||
Conversion efficiencies | Mira V10 | Chameleon Ultra II | |
@800 nm, 76 MHz | @800 nm, 80 MHz | ||
Input pulse width | approx. 130 fs | approx. 1.6 ps | approx.140 fs |
Input power for below specifications | 1.3 W | 1.3 W | 3.5 W |
Efficiency/Power | Efficiency/Power | Efficiency/Power | |
SHG (SHG only Version) | 40% / 520 mW | 15% / 195 mW | 40% / 1400 mW |
SHG (in THG Version) | 20% / 260 mW | 10% / 130 mW | 20% / 700 mW |
THG | 10% / 130 mW | 3% / 39 mW | 10% / 350 mW |
FHG (2+2) Option | 4% / 40 mW | on request | 4% / 85 mW |
@880 nm, 1.0 W | @880 nm, 2.1 W | ||
FHG (3+1) Version | 0.1% / 1.5 mW | on request | 0.2% / 7 mW |
1 Other wavelength ranges on request
Options
- Autotracker: automatic following and / or setting an input wavelength. Details depend on laser source. Please ask for details.
- Customization for other wavelength ranges
Versions
- SHG only
- THG (includes SHG in THG)
- FHG (2+2) (including SHG in THG, THG)
- FHG (3+1) (includes SHG in THG, THG, FHG (2+2)) no autotracker available
Literature
A publication mentioning the use of the HarmoniXX:
Hooijschuur et al., Resonance Raman spectroscopy to characterize bacteria, and potential for future planetary missions, 2003, Link