Journal
LASER PHYSICS
Volume 31, Issue 3, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1555-6611/abd8ca
Keywords
photonic crystal; bend waveguide; polarizer
Categories
Funding
- Ministry of Science and Higher Education within the State assignment FSRC Crystallography and Photonics RAS [007GZ/Ch3363/26]
- Russian Science Foundation [20-69-47110]
- Russian Science Foundation [20-69-47110] Funding Source: Russian Science Foundation
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The study proposes a compact two-dimensional photonic crystal heterostructure for flexible light steering by integrating two structures with diverse optical properties. The arrangement allows for transmission and manipulation of TE- and TM-polarized light, offering potential high resolution and applications.
An attractive and realizable scheme of a compact two-dimensional (2D) photonic crystal (PhC) heterostructure is proposed for flexible light steering formed by integrating two PhC structures having diverse optical properties. The first PhC allows both TE- and TM-polarized light to propagate through it with minimum transmission loss (TL), whereas the second PhC structure is designed in such a way that TE-polarized light faces a photonic bandgap while self-collimated TM-polarized light travels without any diffraction. The study is conducted via a 2D finite element method. By the distinctive arrangement of both PhC structures, it is possible to obtain a TM-polarization maintaining device that offers a high polarization extinction ratio of similar to 49 dB as well as a compact 180 degrees bend for TE-polarized light with low TL. The proposed study is useful in designing PhC waveguides with sharp bends, which can be employed for multiple applications in photonic integrated circuits.
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