• Hands-free operation
  • High conversion efficiency
  • Up to 5 mJ input energy
  • Excellent beam quality

The TOPAS Prime automated optical parametric amplifier (OPA) is a state-of-the-art instrument for wavelength extension of the Spitfire® Ace™ Ti:Sapphire amplifier system. The TOPAS Prime is entirely computer controlled which minimizes time adjusting the laser system and maximizes experimental productivity. Wavelengths can be generated from the deep UV range through the infrared (189–20000 nm) making TOPAS Prime the ideal instrument for numerous scientific applications.

The TOPAS Prime utilizes several key features aimed at maximizing its usefulness and efficiency. The fresh pump option provides more efficient sum frequency conversion with improved beam quality and with less optical noise. The TOPAS Prime will also accept larger beam diameters (~10.5 mm), eliminating the need for an external telescope. For higher energy applications, the TOPAS Prime Plus can accept pulse energies as high as 5 mJ.

The TOPAS Prime works best when pumped using the Spitfire Ace – the most advanced regenerative amplifier available. The Spitfire Ace laser’s patented XP cavity provides superior beam quality for maximum efficiency from the TOPAS Prime. In addition, the Spitfire Ace stability specifications provide the perfect solution for performing high energy ultrafast research.

Typical Performance

tuning curves for TOPAS Prime

Tuning curves for TOPAS Prime when pumped by 100 fs, 1 mJ Spitfire Ace.

Input Wavelength 770–830 nm  
Pulse Energy1, 2 0.15–5.0 mJ  
Pulse Width, FWHM
20–60 fs  
Pulse Width, FWHM3
60–150 fs  
Polarization Horizontal  
Spectral Linewidth Spectral Linewidth  
Energy Stability ≤1% rms  
Pulse-to-Pulse Stability ≤1%  
Beam Divergence <1.5 x (diffraction limit)  
Beam Height 120–185 mm from optical table  
Beam Diameter (1/e²) <11 mm  
 TOPAS Prime-FTOPAS Prime-U   
Tuning Range Output Energy 100 fs Output Energy 35 fs Polarization  
Signal: 1140–1600 nm >250 µJ (signal + idler at peak) >250 µJ (signal + idler at peak) Vertical  
Idler: 1600–2600 nm     Horizontal  
SHS: 570–800 nm >80 µJ >30 µJ Horizontal  
SHI: 800–1160 nm >30 µJ >15 µJ Vertical  
SFI: 533–600 nm >60 µJ4 >30 µJ Vertical  
SFS: 480-533 nm >90 µJ4 >40 µJ Vertical  
FHS: 290–400 nm >15 µJ >5 µJ Horizontal  
FHI: 400–480 nm >6 µJ >2.5 µJ Horizontal  
SH of SFS: 240–266 nm >8 µJ >3 µJ Horizontal  
SH of SFI: 266–295 nm >8 µJ >3 µJ Horizontal  
Deep UV - FHS + Pump: 215–240 nm >3 µJ >1 µJ Vertical  
Deep UV - FHI + Pump: 200–215 nm >3 µJ >1 µJ Vertical  
Deep UV - SH of SFS + Pump:
190–200 nm
>3 µJ >1 µJ Vertical  
DFG1, NDFG1: 2400–11000 nm (100 fs) >8 µJ at 4000 nm; >1.5 µJ
at 10000 nm
DFG2, NDFG2: 4000–20000 nm (100 fs) >4 µJ at 5000 nm; >0.3 µJ
at 15000 nm
DFG1, NDFG1: 2400–9000 nm (35 fs)   >2 µJ at 4000 nm; >0.5 µJ at 9000 nm Horizontal  
DFG2, NDFG2: 4000–15000 nm (35 fs)   >1 µJ at 5000 nm; >0.1 µJ
at 15000 nm

1. Due to our continuous product improvement program, specifications are subject to change without notice.
2. TOPAS Prime energies scaled linearly with input energy. Energy above generated at 1 mJ input energy.
3. 5 mJ input energy requires TOPAS Prime Plus configuration.
4. For pulse widths >150 fs, contact Spectra-Physics.
5.Optional fresh pump available.

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