Sub-micronic grating couplers have been integrated on optical waveguides for efficient light in-coupling into interferometric biosensors. Design and fabrication processes are presented as well as the results of the optical characterization and the sensing evaluation. Keywords-Grating couplers; interferometers; biosensors; integrated optics.

We demonstrate integrated, mode-evolution-based, 1x2 port high-pass/low-pass filters in a silicon photonics platform that can simultaneously achieve broadband operation, single cutoff wavelength, and a record high filter roll-off of 2.5 dB/nm for the first time. OCIS codes: (130.7408) Wavelength filtering devices; (230.1360) Beam splitters; (130.3120) Integrated optics devices.

Simultaneously identifying the composition of mixtures and determining their concentration levels has aroused much attention in recent years to meet large demands compact low-cost infrared spectral sensors replace conventional bulky counterparts with costly separated components. In this work, we propose a design method for multichannel metasurface array optics covering two bands middle-wave (MW...

We report multifunctional integrated photonic switches that provide optical wavelength conversion across the C-band at 3.5 Gb/s that is electrically packet-switched within a reconfiguration time of <2.5ns. These switches also provide optical packet-switching in <300ps. © 2005 Optical Society of America OCIS codes: (250.3140) Integrated optoelectronic circuits; (060.2330) Fiber optics communicat...