Figure - available from: Sensors
This content is subject to copyright.
Example of MPES (red line) and MDES (light blue band corresponding to various values of dazzle level, ϵ) for an arbitrarily chosen scenario as a function of distance between imaging system and laser source. Additionally, the peak irradiance of the assumed laser source at the position of the lens is shown (green line). The parameters used for the calculations are listed in Table 2.
Source publication
Laser safety is an important topic. Everybody working with lasers has to follow the long-established occupational safety rules to prevent people from eye damage by accidental irradiation. These rules comprise, for example, the calculation of the Maximum Permissible Exposure (MPE), as well as the corresponding laser hazard distance, the so-called No...
Citations
... 7 Research on laser dazzling of thermal infrared sensors is less common because visible and near-infrared lasers pose more immediate safety risks and are more prevalent in civilian life, driving more research in those areas. [8][9][10][11][12][13] The critical papers in mid-infrared laser dazzle stem from almost twenty years before in the research of Schleijpen and colleagues in the NATO SCI-139 research group. [14][15][16] However, the effects observed for the quantum detectors, whether visible or infrared, are based on the same physics and thus, exhibit similar trends. ...
... Elder 12 states that increasing the wall plug efficiency is the critical driver for DIRCM lasers. On the other hand, Ritt has comprehensively investigated laser safety for electro-optical imaging systems, making comparisons with that of laser eye safety 13 . ...
... It is crucial to note that the laser beam's power density on the focal plane array is the essential factor and seed in creating various optical phenomena that the seeker observes: pixel blooming, diffraction rings, lens flares, and scattering. Sequentially, the resultant oversaturation of detector elements leads to electronic effects along the readout lines and gates, which emerge as artificial horizons like Venetian blinds seen in the image when modulated CW or pulsed laser sources are used 13,18 . The saturation spot grows with increasing power density, influencing the scene contrast beyond that observed on 8-bit images or by eye. ...
