Alpha

Maximum flexibility. Rock solid.

The Stuttgart Instruments Alpha is an ultrafast, wavelength-tunable frequency conversion system. Its compact and passively stable design based on revolutionary fiber-feedback optical parametric oscillator (FF-OPO) technology guarantees outstanding stability, reproducibility and shot-noise limited performance. It is available with a variety of pump laser options at different repetition rates and pulse durations.

Versions

Alpha 100 fs

Typical performance of the Alpha when operated with 100 fs pulses.

Alpha 350 fs

Typical performance of the Alpha when operated with 350 fs pulses.

Alpha 1 ps

Typical performance of the Alpha when operated with 1 ps pulses.

Performance

Besides broad tunability and full automation the Alpha features:

Power stability <0.5 %rms
Spectral stability <0.02 %rms
Repeatability <0.1 nm
Ultra low noise <160 dB/Hz

Applications

(s)SNOM microscopy and imaging
Coherent Raman (SRS, CARS) microscopy
(M)IR spectroscopy
Time-resolved pump probe spectroscopy
Vibrational spectroscopy
Multiphoton fluorescence spectroscopy

Replicator option

Exploit the Alpha's unprecedented repeatability with the replicator option. The replicator allows saving any arbitrary system state (spectrum, output power, module settings) and restoring it any time. All modules are supported. The replicator is fully integrated in our AlphaTune software and comes ready-to-use with any third-party software.

Modulator option

The Alpha can be equipped with a high speed optical modulator. All outputs are modulated through a single input signal. The system comes with a fully integrated modulation architecture including a precision electronic oscillator and full software support.

Narrowband option

Multi-branch option

The Alpha is perfectly suited for parallel operation of two or more independently tunable and optically synchronized branches. Ideal for maximum flexibility in pump-probe methods or for driving multiple experiments in parallel.