Abstract:
A new approach to the implementation of sectorial plates for beam polarization conversion is proposed. Using a newly developed etching technology, a four-sector polarization converter integrated into a calcite crystal is implemented. A four-sector polarization converter, which provides a pairwise orthogonal polarization state of the sectors, is fabricated and experimentally characterized. A comparison is made of inter-sector joints of the integrated converter with those of a converter composed of individual wave-plate fragments. Analysis of the spectral properties of such a converter is carried out, wavelengths at which the necessary polarization conversion takes place are determined. The quasi-periodic repetition of phase matching conditions is experimentally shown to slow down with increasing wavelength.
Keywords:
inhomogeneous polarization, sector polarizing plate, the quality of sector coupling, the spectral method for selecting the phase matching condition.
This work was financially supported by the Russian Foundation for Basic Research (grants No. 16-29-11698-ofi_m, 16-07-00825-a) and the Federal Agency for Scientific Organizations (agreement No. 007-GZ/C3363/26).
Received: 14.03.2018 Accepted: 04.04.2018
Document Type:
Article
Language: Russian
Citation:
S. V. Karpeev, V. V. Podlipnov, S. N. Khonina, V. D. Paranin, А. С. Решетников, “A four-sector polarization converter integrated in a calcite crystal”, Computer Optics, 42:3 (2018), 401–407