Widely tunable 470 nm – 20 µm ultrafast laser systems
Triple award-winning SI Alpha, available in femtosecond or picosecond configurations to match your application.
Meet us
SPIE BiOS Expo 2027
San Francisco, United States
January 30 – 31, 2027
Booth 8529
Moscone Center · Event details at SPIE BiOS
Products
Tunable and fixed-wavelength lasers
Ultrashort pulses
Femto- and picosecond pulses for time-resolved spectroscopy and microscopy.
Precise tuning
Gap-free broad spectral coverage for infrared spectroscopy and sensing.
Ultra-low-noise
Shot-noise-limited performance and passive long-term stability.
Fully automated
Ethernet, Wi-Fi, GUI, and API access for reproducible experiments.
Alpha
- Tune from 470 nm to 20 µm
- Select from 100 fs to 1 ps
- Available at 10 to 100 MHz
Alpha CRS
- Pump 700 – 980 nm, Stokes 1030 nm
- 400 – 4500 cm⁻¹ Stokes shift
- 1 ps or 2 ps at 10 MHz
Piano
- Sweep through 1.4 to 18 µm
- Down to 2 cm⁻¹ linewidth
- Fully integrated
Primus
- 1035 ± 10 nm
- 350 fs – 2 ps
- Down to −168 dBc/Hz
Applications
Where our lasers are used
Technology
Simple. Reliable.
Our hybrid fiber-feedback and solid-state technology combines broad tuning with passive stability, repeatable settings, and low noise, without active wavelength locking.
- Hybrid fiber-feedback and bulk nonlinear gain
- Dispersive tuning with < 0.05 nm accuracy
- Passive spectral stability < 0.02 %rms
Fiber-feedback OPO (FFOPO) Dispersive feedback sets the wavelength; a bulk crystal provides the gain
Company
Spin-off of the University of Stuttgart
Founded in 2017, we develop and build passively stable laser sources for demanding applications, from nanoscale infrared microscopy to quantum photonics.
Acknowledgment
Partners & funding
Contact
Contact us
Phone+49 (0)711 3420325 0
AddressSI Stuttgart Instruments GmbH
Ernsthaldenstr. 17, 70565 Stuttgart, Germany