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Theoretical analysis and optimization of 3D laser beam shaping

Traczyk M., Wojtanowski J., Mierczyk Z., Zygmunt M., Knysak P., Drozd T., Muzal M.

Bulletin of the Polish Academy of Sciences. Technical Sciences

2015

Vol. 63, nr 2

555--560

We report methodology of three-dimensional laser beam shaping. The analytical and numerical analysis is presented. A strategy for designing optical system involves the controlled application of aberrations which is realized by specific aspheric lens shaping. The goal is to obtain the desired optical power density distribution in space, which is optimal for selected application. The proposed method is discussed with regard to the design of optical transmitter for laser shooting simulator, however the developed methodology can be used for a number of other light shaping applications.

Beam forming optic aberrations’ impact on maximum range of semiconductor laser based rangefinders

Wojtanowski J., Zygmunt M., Traczyk M., Mierczyk Z., Jakubaszek M.

Opto-Electronics Review

2014

Vol. 22, No. 3

152-161

Miniature range finding modules based on pulsed semiconductor laser technology are becoming more and more popular components of a variety of modern optoelectronics devices where precise, fast and eye-safe range estimation is needed. Current trends associated with minimization of both physical dimensions and cost of such modules lead to the design approach relying on exact meeting the requirements of a given application, concerning the spatial resolution and especially the maximum range. Optical components of a rangefinder cover a substantial part of its cost and determine its overall dimensions, but primarily - the indigenous parameters of the transmitter and receiver trains are crucial for the maximum measurable range. The quantitative analysis of transmitter optics aberrational characteristics impact on signal-to-noise ratio range dependence and thus the maximum range of a laser rangefinder is presented in the paper. Modern optical fabrication technology offers a huge range of solutions, changing in imaging/projecting characteristics which implies the price level as well. Rangefinder optics has a very specific task which sometimes makes it unreasonable to fight for the diffraction limited performance. The article provides the approach how to determine the acceptable level of optical aberrations which still does not degrade the measurable range significantly.