The Stuttgart Instruments Piano is a tunable infrared source for precision spectroscopy and microscopy. It provides narrow linewidth, automated wavelength control, and repeatable spectral settings. The pump laser is integrated in the same enclosure.
- Gap-free spectral sweeping over > 2000 cm⁻¹
- Shot-noise limited at −168 dBc/Hz above ≈250 kHz
- Fully integrated
Piano configurations
Piano is delivered as a single selected configuration of either the standard or the high-power version. It can be equipped with either a VIS, NIR, or MIR unit.
| Piano | Piano MIR | Piano VIS | Piano NIR | Piano eVIS | |
|---|---|---|---|---|---|
| Repetition rate | 50 MHz | ||||
| Pulse duration | 10 ps | ||||
| Linewidth | 2 – 4 cm⁻¹ | ||||
| Wavelength | 1.42 – 4.3 µm | 1.42 – 18 µm | 1.42 – 4.3 µm 710 – 980 nm |
1.42 – 4.3 µm 1.1 – 1.95 µm |
0.48 – 0.63 µm 0.71 – 0.98 µm 1.42 – 4.3 µm |
| Average power | 900 mW at 1.7 µm 500 mW at 3 µm |
600 mW at 1.7 µm 300 mW at 3 µm 20 mW at 5 µm 5 mW at 10 µm |
900 mW at 1.7 µm 300 mW at 3 µm 500 mW at 800 nm |
900 mW at 1.7 µm 500 mW at 3 µm 300 mW at 1.2 µm |
30 mW at 500 nm 500 mW at 800 nm |
Typical tuning range of the standard Piano.
Typical tuning range of the Piano eVIS.
Typical tuning range of the Piano VIS.
Typical tuning range of the Piano NIR.
Typical tuning range of the Piano MIR.
Spectral accuracy
The Piano sets and holds its wavelength under automated control, with a narrow linewidth and repeatable tuning steps for high-resolution spectroscopy.
- Narrow-linewidth, precisely tunable
- Repeatable (< 0.5 cm⁻¹) gap-free sweeping over > 2000 cm⁻¹
- Passive long-term stability without active locking: spectral drift < 0.02 cm⁻¹/h
- Low relative intensity noise (RIN) < −168 dBc/Hz
Options
Integrated high-speed modulator
The Piano can be equipped with a high-speed optical modulator. All outputs can be modulated through a user accessible electronic signal. Both TTL and analog inputs for arbitrary wave modulation are supported.
- Modulation frequency 1 kHz – 3 MHz
- Duty cycle 0 – 100%
Dual branch system
The Piano can be customized as an optically synchronized dual branch system, paralleling two different versions, e.g. a Piano MIR and a Piano VIS for independently tunable MIR/VIS pump-probe experiments.