Wavelength-tunable sources
TOPAS-TWINS
Dual optical parametric amplifier
Two independently tunable OPAs seeded by one white-light source, with optional CEP-stable outputs for two-color experiments.
Features
- Two independently tunable outputs
- Shared white-light seed
- Optional CEP-stable outputs
- Pump pulse energy 0.3–6 mJ
- HE-STAGE upgrade path
Specifications
Ultrafast (20–60 fs) · Pump laser requirements
| OPA channel | OPA-1 | OPA-2 |
|---|---|---|
| Pump wavelength | 770 – 830 nm | 770 – 830 nm |
| Pump pulse duration (FWHM) | 20 – 60 fs | 20 – 60 fs |
| Pump pulse energy | 0.15 – 1 mJ | 0.15 – 3.5 mJ |
| Repetition rate | < 25 kHz 1) | < 25 kHz 1) |
| Maximum pump power | 15 W into each OPA 2) | 15 W into each OPA 2) |
| Pump polarization | Horizontal | Horizontal |
| Spectral bandwidth | < 1.2 × transform limit | < 1.2 × transform limit |
| Pulse-to-pulse energy stability | < 1% RMS deviation 3) | < 1% RMS deviation 3) |
| Pulse duration stability | < 1% pulse-to-pulse 4) | < 1% pulse-to-pulse 4) |
| Pulse front tilt | < 10% of pulse duration | < 10% of pulse duration |
| Pulse contrast | < 1 : 20 | < 1 : 20 |
| Beam quality, M² | < 1.3 5) | < 1.3 5) |
| Beam astigmatism | < 0.15 6) | < 0.15 6) |
| Beam spatial profile | Gaussian – Super Gaussian | Gaussian – Super Gaussian |
| Intensity modulation | < 15%, no hotspots 7) | < 15%, no hotspots 7) |
| Beam pointing stability | < 10 μrad 8) | < 10 μrad 8) |
| Beam divergence | < 1.2 × diffraction limit | < 1.2 × diffraction limit |
| Beam height from the optical table | 125 – 185 mm | 125 – 185 mm |
| Beam diameter, 1/e 2 | < 8.5 mm 9) | < 8.5 mm 9) |
- The maximum repetition rate for the DFG1 (NDFG1) option is 1 kHz.
- on request for higher pump power options.
- Normalized to average pulse energy. Expressed as normalized root mean squared deviation (NRMSD).
- Normalized to average pulse duration. Expressed as NRMSD.
- M² specification is valid for a Gaussian beam.
- Normalized astigmatism – difference of the waist positions, divided by Raleigh length.
- Normalized to Gaussian or Super-Gaussian fits. Expressed as NRMSD.
- Expressed as NRMSD, full angle.
- An optional external telescope can be ordered for a beam diameter of 8.5 – 28 mm.
Ultrafast (20–60 fs) · Output
| Model | TOPAS-TWINS |
|---|---|
| Tuning range (Signal and Idler combined) | 1160 – 1600 nm (Signal) 1600 – 2600 nm (Idler) |
| Conversion efficiency at peak (Signal and Idler combined) | > 25% |
| Pulse duration | (1 – 1.5) × pump pulse duration @ 1160 – 1550 nm < 2 × pump pulse duration @ 1550 – 2600 nm |
| Time-bandwidth product | < 1 |
| Polarization | Vertical (Signal) Horizontal (Idler) |
| Pulse-to-pulse energy stability | < 3% RMS deviation 1) @ 1160 – 1550 nm |
- Normalized to average pulse energy. Expressed as NRMSD.
Ultrafast (20–60 fs) · VIS–UV extensions (240 – 1160 nm)
| Extension | Standard NIRUVIS | Separate mixer stage(s) |
|---|---|---|
| Level of computer control | Manual change of wavelength separators | Manual change of wavelength separators |
| Maximum tuning range | 240 – 1160 nm | 240 – 1160 nm |
| Housing | Monolithic housing | No common housing |
| Number of output ports | Four 1) | Four 1) |
- Output ports are wavelength-dependent.
Ultrafast (20–60 fs) · VIS extensions (475 – 1160 nm)
| Extension | Standard NIRUVIS | Separate mixer stage |
|---|---|---|
| SHI (800 – 1160 nm) | ||
| Tuning range | 800 – 1160 nm | 800 – 1160 nm |
| Conversion efficiency at peak | > 2% | > 1.5% |
| Pulse duration | (1 – 1.5) × pump pulse duration | (1 – 1.5) × pump pulse duration |
| Polarization | Vertical | Vertical |
| SHS (580 – 800 nm) | ||
| Tuning range | 580 – 800 nm | 580 – 800 nm |
| Conversion efficiency at peak | > 3% | > 3% |
| Pulse duration | (1 – 1.5) × pump pulse duration @ 620 – 800 nm | (1 – 1.5) × pump pulse duration @ 620 – 800 nm |
| Polarization | Vertical | Horizontal |
| SFI (533 – 600 nm) | ||
| Fresh pump option | Not available | Not available |
| Tuning range | 533 – 600 nm | 533 – 600 nm |
| Conversion efficiency at peak | > 3% | > 3% |
| Pulse duration | (1 – 1.5) × pump pulse duration | (1 – 1.5) × pump pulse duration |
| Polarization | Vertical | Vertical |
| SFS (475 – 533 nm) | ||
| Fresh pump option | Not available | Not available |
| Tuning range | 475 – 533 nm | 475 – 533 nm |
| Conversion efficiency at peak | > 4% | > 4% |
| Pulse duration | (1 – 1.5) × pump pulse duration | (1 – 1.5) × pump pulse duration |
| Polarization | Vertical | Vertical |
Ultrafast (20–60 fs) · UV extensions (240 – 480 nm)
| Extension | Standard NIRUVIS | Separate mixer stage |
|---|---|---|
| FHI (400 – 480 nm) | ||
| Tuning range | 400 – 480 nm | 400 – 480 nm |
| Conversion efficiency at peak | > 0.4% | > 0.25% |
| Pulse duration | (1.2 – 2) × pump pulse duration | (1.2 – 2) × pump pulse duration |
| Polarization | Horizontal | Horizontal |
| FHS (290 – 400 nm) | ||
| Tuning range | 290 – 400 nm | 290 – 400 nm |
| Conversion efficiency at peak | > 0.5% | > 0.5% |
| Pulse duration | (1.2 – 2) × pump pulse duration | (1.2 – 2) × pump pulse duration |
| Polarization | Horizontal | Vertical |
| SH of SFI (266 – 295 nm) | ||
| Tuning range | 266 – 295 nm | 266 – 295 nm |
| Conversion efficiency at peak | > 0.3% | > 0.3% |
| Pulse duration | (1.2 – 2) × pump pulse duration | (1.2 – 2) × pump pulse duration |
| Polarization | Horizontal | Horizontal |
| SH of SFS (240 – 266 nm) | ||
| Tuning range | 240 – 266 nm | 240 – 266 nm |
| Conversion efficiency at peak | > 0.3% | > 0.3% |
| Pulse duration | 3 × pump pulse duration | 3 × pump pulse duration |
| Polarization | Horizontal | Horizontal |
Ultrafast (20–60 fs) · DFG extensions (2600 – 13 000 nm)
| Extension | NDFG1W 1) | NDFG1K 2) | NDFG2 | SIG-SIG NDFG |
|---|---|---|---|---|
| Tuning range | 2.6 – 9 μm | 2.6 – 4.5 μm | 4 – 13 μm | 4 – 13 μm |
| Conversion efficiency at peak | > 0.2% | > 0.4% | > 0.2% | > 0.15% |
| Pulse duration | < 3× pump pulse duration | < 3× pump pulse duration | Not specified | Not specified |
| Polarization | Horizontal | Horizontal | Horizontal | Horizontal |
- Maximum pump repetition rate – 1 kHz. Limited crystal lifetime of 1000 – 2000 h.
- Not available in the collinear configuration.
Ultrafast (20–60 fs) · Dimensions
| Model | TOPAS-TWINS |
|---|---|
| General dimensions of the housing (W × L × H) | 350 × 680 × 156 mm |
| NIRUVIS housing dimensions (W × L × H) | 230 × 450 × 156 mm |
| DFG/NDFG housing dimensions (W × L × H) | 230 × 330 × 156 mm |
Fast (60–200 fs) · Pump laser requirements
| OPA channel | OPA‑1 | OPA‑2 |
|---|---|---|
| Pump wavelength | 770 – 830 nm | 770 – 830 nm |
| Pump pulse duration (FWHM) | 60 – 200 fs | 60 – 200 fs |
| Pump pulse energy | 0.15 – 1.5 mJ | 0.15 – 4 mJ |
| Repetition rate | < 25 kHz 1) | < 25 kHz 1) |
| Maximum pump power | 15 W into each OPA 2) | 15 W into each OPA 2) |
| Pump polarization | Horizontal | Horizontal |
| Spectral bandwidth | < 1.2 × transform limit | < 1.2 × transform limit |
| Pulse-to-pulse energy stability | < 1% RMS deviation 3) | < 1% RMS deviation 3) |
| Pulse duration stability | < 1% pulse-to-pulse 4) | < 1% pulse-to-pulse 4) |
| Pulse front tilt | < 10% of pulse duration | < 10% of pulse duration |
| Pulse contrast | < 1 : 20 | < 1 : 20 |
| Beam quality, M² | < 1.3 5) | < 1.3 5) |
| Beam astigmatism | < 0.15 6) | < 0.15 6) |
| Beam spatial profile | Gaussian – Super Gaussian | Gaussian – Super Gaussian |
| Intensity modulation | < 15%, no hotspots 7) | < 15%, no hotspots 7) |
| Beam pointing stability | < 10 μrad 8) | < 10 μrad 8) |
| Beam divergence | < 1.2 × diffraction limit | < 1.2 × diffraction limit |
| Beam height from the optical table | 125 – 185 mm | 125 – 185 mm |
| Beam diameter, 1/e 2 | < 8.5 mm 9) | < 8.5 mm 9) |
- The maximum repetition rate for the DFG1 (NDFG1) option is 1 kHz.
- on request for higher pump power options.
- Normalized to average pulse energy. Expressed as normalized root mean squared deviation NRMSD.
- Normalized to average pulse duration. Expressed as NRMSD.
- M² specification is valid for a Gaussian beam.
- Normalized astigmatism – difference of the waist positions, divided by Raleigh length.
- Normalized to Gaussian or Super-Gaussian fits. Expressed as NRMSD.
- Expressed as NRMSD, full angle.
- An optional external telescope can be ordered for a beam diameter of 8.5 – 28 mm.
Fast (60–200 fs) · Output
| Model | TOPAS-TWINS |
|---|---|
| Tuning range (Signal and Idler combined) | 1160 – 1600 nm (Signal) 1600 – 2600 nm (Idler) |
| Conversion efficiency at peak (Signal and Idler combined) | > 25% |
| Pulse duration | (0.7 – 1) × pump pulse duration |
| Time-bandwidth product | < 1 |
| Polarization | Vertical (Signal) Horizontal (Idler) |
| Pulse-to-pulse energy stability | < 2% RMS deviation 1) @ 1160 – 1550 nm |
- Normalized to average pulse energy. Expressed as NRMSD.
Fast (60–200 fs) · VIS–UV extensions (240 – 1160 nm)
| Extension | Standard NIRUVIS | Separate mixer stage(s) |
|---|---|---|
| Control | Manual change of wavelength separators | Manual change of wavelength separators |
| Maximum tuning range | 240 – 1160 nm | 240 – 1160 nm |
| Housing | Monolithic housing | No common housing |
| Number of output ports | Four 1) | Four 1) |
- Output ports are wavelength-dependent.
Fast (60–200 fs) · VIS extensions (475 – 1160 nm)
| Extension | Standard NIRUVIS | Separate mixer stage |
|---|---|---|
| SHI (800 – 1160 nm) | ||
| Tuning range | 800 – 1160 nm | 800 – 1160 nm |
| Conversion efficiency at peak | > 5% | > 3% |
| Pulse duration | (0.7 – 1) × pump pulse duration | (0.7 – 1) × pump pulse duration |
| Polarization | Vertical | Vertical |
| SHS (580 – 800 nm) | ||
| Tuning range | 580 – 800 nm | 580 – 800 nm |
| Conversion efficiency at peak | > 8% | > 8% |
| Pulse duration | (0.7 – 1) × pump pulse duration | (0.7 – 1) × pump pulse duration |
| Polarization | Horizontal | Horizontal |
| SFI (533 – 600 nm) | ||
| Fresh pump option | Not available | Not available |
| Tuning range | 533 – 600 nm | 533 – 600 nm |
| Conversion efficiency at peak | > 5% | > 5% |
| Pulse duration | (0.7 – 1) × pump pulse duration | (0.7 – 1) × pump pulse duration |
| Polarization | Vertical | Vertical |
| SFS (475 – 533 nm) | ||
| Fresh pump option | Not available | Not available |
| Tuning range | 475 – 533 nm | 475 – 533 nm |
| Conversion efficiency at peak | > 7% | > 7% |
| Pulse duration | (0.8 – 1.2) × pump pulse duration | (0.8 – 1.2) × pump pulse duration |
| Polarization | Vertical | Vertical |
Fast (60–200 fs) · UV extensions (240 – 480 nm)
| Extension | Standard NIRUVIS | Separate mixer stage |
|---|---|---|
| FHI (400 – 480 nm) | ||
| Tuning range | 400 – 480 nm | 400 – 480 nm |
| Conversion efficiency at peak | > 1.5% | > 0.6% |
| Pulse duration | (0.7 – 1) × pump pulse duration | (0.7 – 1) × pump pulse duration |
| Polarization | Horizontal | Horizontal |
| FHS (290 – 400 nm) | ||
| Tuning range | 290 – 400 nm | 290 – 400 nm |
| Conversion efficiency at peak | > 1.5% | > 1.5% |
| Pulse duration | (0.8 – 1.2) × pump pulse duration | (0.8 – 1.2) × pump pulse duration |
| Polarization | Vertical | Vertical |
| SH of SFI (266 – 295 nm) | ||
| Tuning range | 266 – 295 nm | 266 – 295 nm |
| Conversion efficiency at peak | > 0.7% | > 0.7% |
| Pulse duration | (0.8 – 1.2) × pump pulse duration | (0.8 – 1.2) × pump pulse duration |
| Polarization | Horizontal | Horizontal |
| SH of SFS (240 – 266 nm) | ||
| Tuning range | 240 – 266 nm | 240 – 266 nm |
| Conversion efficiency at peak | > 0.8% | > 0.8% |
| Pulse duration | < 1.5 × pump pulse duration | < 1.5 × pump pulse duration |
| Polarization | Horizontal | Horizontal |
Fast (60–200 fs) · DFG extensions (2600 – 20 000 nm)
| Extension | NDFG1W 1) | NDFG1K 2) | NDFG2 | SIG-SIG NDFG |
|---|---|---|---|---|
| Tuning range | 2.6 – 11 μm | 2.6 – 4.9 μm | 4 – 20 μm | 4.5 – 16 μm |
| Conversion efficiency at peak | > 0.8% | > 1% | > 0.6% | > 0.25% |
| Pulse duration | < 2 × pump pulse duration | < 2 × pump pulse duration | Not specified | Not specified |
| Polarization | Horizontal | Horizontal | Horizontal | Horizontal |
- Maximum pump repetition rate – 1 kHz; crystal lifetime of 1000 – 2000 h.
- Not available in the collinear configuration.