The spectra of our broadband venteon oscillators are difficult to measure with standard Si-based CCD-spectrometers. Limited by the detector sensitivity, these devices are only suitable to cover a spectral range up to 1050 nm, which is not enough for the broadband spectra of state-of-the-art femtosecond lasers such as venteon ultra, which cover a spectral range up to 1200 nm. So far only expensive and scanning optical spectrum analysers have been suitable for a reliable oscillator characterisation.
The TQ Systems irSys USB spectrometer is a compact, mobile and reasonablly priced USB spectrometer that covers a wavelength range spanning from 610 nm - 1700 nm, more than enough to characterise our broadest oscillators. This device is a scanning-type spectrometer and features a MEMS mirror array for scanning the spectral components onto a Si- as well as an InGaAs-detector.