The APE HarmoniXX Select SHG is the combination of two well-known APE products in one box: Adjusting the repetition rate by pulse picking (pulseSelect) + second harmonic wavelength conversion (HarmoniXX SHG) of modelocked lasers.
The APE HarmoniXX Select SHG is the combination of two well-known APE products in one box: Adjusting the repetition rate by pulse picking (pulseSelect) + second harmonic wavelength conversion (HarmoniXX SHG) of modelocked lasers.
the APE HarmoniXX Select is the combination of two well-known APE products in one box: Adjusting the repetition rate by pulse picking (pulseSelect) + second harmonic wavelength conversion (HarmoniXX SHG) of modelocked lasers.
The on-board pulse picker with its low dispersive design is developed for requirements associated with ultrashort pulse laser technology. The integrated second harmonic generator features frequency doubling of the picked input laser beam. With its flexible design, the HarmoniXX Select SHG can be adapted to Ti:Sa lasers or other broadly tuneable lasers, such as Coherent Discovery or Spectra Physics Insight.
Specifications
| Harmonixx Select Specification | |
|---|---|
| Input Laser Specification | |
| Input Wavelength Range | 680 … 1080 nm (e.g. TiSa) or 660 … 1320 nm |
| Input Repetition Rate | 72 … 81 MHz (to be specified with 0.5 MHz accuracy at the time of order; other rep. rates on request) |
| Input Power Max | 5 W |
| Polarization | Horizontal, linear |
| Output Picked SHG | |
| Wavelength Range | 340 … 540 nm or 330 … 660 nm (depending on input wavelength) |
| Contrast Ratio | 100,000:1 for non-adjacent pulses 3000:1 for adjacent pulses; at 400 nm with division ratio 20 |
| Combined Conversion Efficiency | 17.5% at 400 nm and division ratio 20 for Chameleon Ultra II / Vision II / Chameleon Discovery NX; 15% at 400 nm and division ratio 20 for Insight X3 |
| Repetition Rate | Single-shot to 40 MHz (based on 80 MHz input repetition rate |
| Polarization | Vertical, linear |
| Output Picked Fundamental | Output fundamental only, or simultaneous with SHG possible |
| Wavelength Range | 680 … 1080 nm or 660 … 1320 nm |
| Contrast Ratio | 500:1 for non-adjacent pulses 75:1 for adjacent pulses; at 800 nm with division ratio 20 |
| Conversion Efficiency | 50% at 800 nm and division ratio 20 |
| Repetition Rate | Single-shot to 40 MHz (based on 80 MHz input repetition rate) |
| Polarization | Horizontal, linear |
| Further Specifications | |
| Division Ratio Picker | 2 … 260,000 (integer values) or external trigger |
| External Trigger | TTL; Single-shot up to 3 MHzM |
| SHG Motorization | Phase matching angle set to factory calibrated values |
Pulse picking and SHG combined
Reducing repetition rate of ultrafast lasers
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Photonic Solutions Ltd
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Heriot-Watt University Research Park
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