Performance Evaluation of a Mid-infrared Spectrometer for Remote Sensing Applications

We report on the development of performance evaluation technologies for mid-infrared (mid-IR) spectrometers. The mid-IR continuous-wave (cw) optical parametric oscillators (OPOs) based on a fan-out grating Mgo:PPLN pumped at 1064 nm and laser diodes were used for wavelengthcalibration of mid-IR spectrometer. We used these light sources to evaluate the wavelength resolution, accuracy and optical signal-to-noise ratio (OSNR) of the mid-IR spectrometer.