A novel ultra-low loss hollow-core waveguide using subwavelength high-contrast gratings.
We propose a novel ultra-low loss single-mode hollow-core waveguide using subwavelength high-contrast grating (HCG). We analyzed and simulated the propagation loss of the waveguide and show it can be as low as 0.006 dB/m, three orders of magnitude lower than the lowest loss of the state-of-art chip-scale hollow waveguides. This novel HCG hollow-core waveguide design will serve as a basic building block in many chip-scale integrated photonic circuits enabling system-level applications including optical interconnects, optical delay lines, and optical sensors.
Zhou
Ye
Y
Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, California 94720, USA.
Karagodsky
Vadim
V
Pesala
Bala
B
Sedgwick
Forrest G
FG
Chang-Hasnain
Connie J
CJ