Optoelectronic Systems Characterisation Laboratory

Head of the Laboratory: Dr Linas Minkevičius

Phone +37067047632

Research objectives

The laboratory's objective is to ensure accurate measurement of laser radiation power and characterization of infrared sensors and sources using calibrated radiometric and optical methods. The quality of sensor arrays and image matrices in the infrared range is also assessed. Measurements are performed according to NIST standards.

Services provided

1. Laser radiation power measurements

Calibrated collimated continuous laser beam measurements are performed:

beam diameter: up to 6 mm;

spectral range: 0.19 µm – 11 µm;

average power: 40 µW – 3 W.

2. Characterization of near-infrared sensors, sensor arrays and sources

Measurements are performed using the HGH Infrared Systems IRCOL300/1500 equipment with calibrated blackbody source and integrating sphere source:

a) Radiometric tests:

determination of the signal transfer function (SiTF);

noise analysis (temporal, fixed pattern, 3D noise, NPSD);

sensitivity parameters (NETD, NEP, NEI, NER);

bad pixel (BP) identification and non-uniformity correction (NUC);

automatic gain control (AGC) delay analysis.

b) Optical tests:

resolution and image quality assessment (LSF, MTF);

determination of field of view (FOV) and geometric distortions;

determination of minimum temperature difference (MRTD);

assessment of object detection, recognition and identification distances (DRI).