TY - JOUR
T1 - Engineering of orbital angular momentum supermodes in coupled optical waveguides
AU - Turpin, A.
AU - Pelegrí, G.
AU - Polo, J.
AU - Mompart, J.
AU - Ahufinger, V.
PY - 2017/1/1
Y1 - 2017/1/1
N2 - © The Author(s) 2017. In this work we demonstrate the existence of orbital angular momentum (OAM) bright and dark supermodes in a three-evanescently coupled cylindrical waveguides system. Bright and dark supermodes are characterized by their coupling and decoupling from one of the waveguides, respectively. In addition, we demonstrate that complex couplings between modes of different waveguides appear naturally due to the characteristic spiral phase-front of OAM modes in twodimensional configurations where the waveguides are arranged forming a triangle. Finally, by adding dissipation to the waveguide uncoupled to the dark supermode, we are able to filter this supermode out, allowing for the design of OAM mode cloners and inverters.
AB - © The Author(s) 2017. In this work we demonstrate the existence of orbital angular momentum (OAM) bright and dark supermodes in a three-evanescently coupled cylindrical waveguides system. Bright and dark supermodes are characterized by their coupling and decoupling from one of the waveguides, respectively. In addition, we demonstrate that complex couplings between modes of different waveguides appear naturally due to the characteristic spiral phase-front of OAM modes in twodimensional configurations where the waveguides are arranged forming a triangle. Finally, by adding dissipation to the waveguide uncoupled to the dark supermode, we are able to filter this supermode out, allowing for the design of OAM mode cloners and inverters.
UR - https://ddd.uab.cat/record/205918
U2 - https://doi.org/10.1038/srep44057
DO - https://doi.org/10.1038/srep44057
M3 - Article
VL - 7
M1 - 44057
ER -