… -fiber grating coupler that uses a subwavelength microstructure to achieve a continuously
variable grating … By adjusting the subwavelength microstructure at every point along the …

… grating couplers. In [4, 5] we showed that the coupling strength of a surface grating coupler
… the refractive index in the grating region using a subwavelength microstructure. An effective …

… Unlike in the waveguide grating couplers based on diffraction, the SWG mechanism is
non-resonant, hence intrinsically wavelength insensitive. This is a consequence of the fine scale …

… to our TM couplers. Subwavelength binary blazed grating couplers have been discussed in
the … , BWaveguide grating coupler with subwavelength microstructures,[ Opt. Lett., vol. 34, no. …

… as the sub-wavelength grating couplers. We can note that our sub-wavelength grating coupler
… central wavelength with the shallow-etched grating coupler for the TE 00 mode. While the …

… A subwavelength microstructure is employed to generate an effective medium engineered
to vary the strength of the grating and thereby maximize coupling efficiency, while mitigating …

… of sub-wavelength gratings to achieve … coupler. This approach does not compromise the
size or the phase response of the device. The sub-wavelength grating based directional coupler …

… sub wavelength periodic structures in dielectric optical waveguides [3, 4]. Here, we demonstrate
using subwavelength grating (… SU-8 materials at the subwavelength scale, the refractive …

… A grating coupler is an essential building block for compact and flexible photonics …
silicon-on-insulator (SOI) based MIR subwavelength grating coupler (SWGC) operating in the 3.7 μm …

… on a grating coupler with sub-decibel experimental coupling … We specifically demonstrate
a subwavelength metamaterial … the measured peak fiber-chip coupling efficiency of −0.69 dB (…