NIR Spectrometer 900-1750 nm The spectrometer is designed mainly to work with femtosecond lasers in pump-probe systems.

Description

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.

Solar radiation at sea level captured using 50 um fiber with no lenses

Specification

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