The spectrometer is designed mainly for femtosecond lasers in pump-probe systems. However, the device could be also used as a regular NIR spectrometer.
It is based on a single concave diffraction grating, so no other surfaces will disturb the signal. The detector used is an InGaS G9203-256S sensor from Hamamatsu. It contains a TE component for cooling and temperature stabilization.
Acquisition of a spectrum can be triggered internally or by an external TTL signal.
Integration time for a single spectrum can be as short as several microseconds.
Here are the most important features of the spectrometer
- Spectral range: 900-1750 nm
- Spectral resolution: 9.7 nm (FWHM with 50 µm fiber)
- Integration times: from 8 µs to 8 s
- Input type: SMA fiber or a fixed slit
- Synchronization capabilities: internal and external TTL trigger
- PC connectivity: USB 2.0
- Temperature stabilization: TE integrated with the sensor
- Size: 10 x 16.5 x 8.5 cm (w x l x h)
- Weight: 1.6 kg
