Open AccessPlanar optical correlators integrated with binary optical lens
Author(s) -
Peng Xu,
Chunquan Hong,
Guanxiao Cheng,
Liang Zhou,
Zhixiang Sun
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.006773
Subject(s) - optics , lens (geology) , optical correlator , planar , binary number , optical filter , spatial filter , spatial light modulator , refractive index , optical axis , materials science , 3d optical data storage , optical path , fourier transform , computer science , physics , mathematics , computer graphics (images) , arithmetic , quantum mechanics
Planar optical correlators (POCs) can achieve smaller volume of optical system and hence have important applications to identify dynamic targets in complex scenarios. POCs, however, generally have serious astigmatism and optical efficiency loss introduced by its refractive lens with a zigzag optical beam. To conquer the disadvantages of POCs, we propose a type of binary optical planar-integrated optical correlator. The correlator incorporates two pieces of reflective binary optical lens as Fourier transform lens and one spatial light modulator as a programmable filter. The off-axis aberrations commonly occurred in POCs can be corrected by using reflective binary optical lens instead of refractive lens. As a model of hybrid numerical-optical correlator using optoelectronic interface, the proposal is helpful to improve the integration and flexibility and robustness of POCs.