

An optical parametric oscillator (OPO) is a laser source which splits a pump photon into two photons with longer wavelengths (Signal and Idler). Optionally, the Signal wavelength can be intra cavity frequency doubled.
The APE OPO is a synchronously pumped OPO with a mode-locked Ti: Sapphire laser as pump source. The OPO is designed for highly efficient wavelength conversion and it covers a wavelength range spanning from the visible to the mid infrared. Depending on the pulse width of the input pulses, it can be operated in fs or ps mode. Since the conversion process from the pump wavelength to the Signal and Idler is jitter free, the OPO is the ideal light source for two color experiments such as pump-probe measurements.
| Features |
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| Specifications | ||||
| Tuning range | ||||
| Signal (resonant) | Signal SHG2) | Idler (non-resonant)3) | ||
| KTP | 1050 ... 1320 nm | 525 ... 660 nm | 2.2 ... 3.0 µm | |
| RTP | 1120 ... > 1350 nm | 560 ... 680 nm | 2.05 ... 2.8 µm | |
| CTA linear | 1350 ... 1600 nm | 1.6 ... 1.9 µm | ||
| (with special optics set) | 1400 ... 1700 nm | 1.7 ... 2.1 µm | ||
| Output power @ ≈800 nm pump wavelength | ||||
| Mira + Verdi 5 W | Mira + Verdi 10 W | Mira HP + Verdi 18 W | ||
| KTP linear @ 1140 nm | 80 mW | 240 mW | 750 mW | |
| CTA linear @ 1570 nm | 60 mW | 200 mW | 750 mW | |
| RTP linear @ 1189 nm | 80 mW | 240 mW | 750 mW | |
| KTP Ring @ 570 nm | 60 mW | 200 mW | 750 mW | |
| RTP Ring @ 590 nm | 60 mW | 200 mW | 750 mW | |
| Pump threshold | < 0.5 W1) | |||
| Pulse width | typ. 200 fs @ 125 fs pump pulse width typ. 1.6 ps @ 1.4 ps pump pulse width |
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| Time bandwidth product | typ. 0.6 @ 125 fs pump pulse width typ. 0.5 @ 1.4 fs pump pulse width |
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| 1) Low power systems - optimized for Mira + 5 W Verdi pump 2) Ring-OPO with intracavity - SHG also including IR-Signal range 3) optional |
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| Option |
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| Distributors |
| Worldwide except Germany, Austria, Switzerland: Coherent Laser Group |