Metamaterial-inspired silicon nanophotonics

I Staude, J Schilling - Nature Photonics, 2017 - nature.com
The prospect of creating metamaterials with optical properties greatly exceeding the
parameter space accessible with natural materials has been inspiring intense research …

Demonstration of a compressive-sensing Fourier-transform on-chip spectrometer

H Podmore, A Scott, P Cheben, AV Velasco… - Optics letters, 2017 - opg.optica.org
We demonstrate compressive-sensing (CS) spectroscopy in a planar-waveguide Fourier-
transform spectrometer (FTS) device. The spectrometer is implemented as an array of Mach …

L-shaped fiber-chip grating couplers with high directionality and low reflectivity fabricated with deep-UV lithography

D Benedikovic, C Alonso-Ramos, D Pérez-Galacho… - Optics Letters, 2017 - opg.optica.org
Grating couplers enable position-friendly interfacing of silicon chips by optical fibers. The
conventional coupler designs call upon comparatively complex architectures to afford …

Compact polarization beam splitter for silicon photonic integrated circuits with a 340-nm-thick silicon core layer

C Li, D Dai - Optics Letters, 2017 - opg.optica.org
A polarization beam splitter (PBS) is proposed and realized for silicon photonic integrated
circuits with a 340-nm-thick silicon core layer by introducing an asymmetric directional …

Optical pump-rejection filter based on silicon sub-wavelength engineered photonic structures

D Pérez-Galacho, C Alonso-Ramos, F Mazeas… - Optics letters, 2017 - opg.optica.org
The high index contrast of the silicon-on-insulator (SOI) platform allows the realization of
ultra-compact photonic circuits. However, this high contrast hinders the implementation of …

Dispersion control of silicon nanophotonic waveguides using sub-wavelength grating metamaterials in near-and mid-IR wavelengths

D Benedikovic, M Berciano, C Alonso-Ramos… - Optics express, 2017 - opg.optica.org
Controlling the group velocity dispersion of silicon nanophotonic waveguides has been
recognized as a key ingredient to enhance the development of various on-chip optical …

Temperature dependence mitigation in stationary Fourier-transform on-chip spectrometers

A Herrero-Bermello, AV Velasco, H Podmore… - Optics Letters, 2017 - opg.optica.org
We present two techniques for mitigating the effects of temperature drifts in waveguide
spatial heterodyne Fourier-transform on-chip spectrometers. In high-resolution devices …

Disorder effects in subwavelength grating metamaterial waveguides

A Ortega-Moñux, J Čtyroký, P Cheben, JH Schmid… - Optics express, 2017 - opg.optica.org
Subwavelength grating (SWG) waveguides are integrated photonic structures with a pitch
substantially smaller than wavelength for which they are designed, so that diffraction effects …

An ultra-compact wavelength diplexer engineered by subwavelength grating

L Liu, Q Deng, Z Zhou - IEEE Photonics Technology Letters, 2017 - ieeexplore.ieee.org
With the assistance of subwavelength grating (SWG), an ultra-compact multimode
interference (MMI) based diplexer is proposed. A certain number of SWG pitches are …

Compact single-etched sub-wavelength grating couplers for O-band application

Y Wang, L Xu, A Kumar, Y D'mello, D Patel, Z Xing… - Optics express, 2017 - opg.optica.org
We demonstrate two single-etched sub-wavelength grating coupler (SWGC) designs for O-
band application, one targeting at high coupling efficiency and the other targeting at broad …