In Situ Regeneration of Si-based ARROW-B Surface Plasmon Resonance Biosensors.

Si-based antiresonant reflecting optical waveguide type B (ARROW-B) surface plasmon resonance (SPR) biosensors allow label-free high-sensitivity detection of biomolecular interactions in real time. The ARROW-B waveguide, which has a thick guiding layer, provides efficient coupling with a single-mode fiber. The Si-based ARROW-B SPR biosensors were fabricated by using the standard semiconductor fabrication processes with a single-step lithography.

Silicon-based dual ARROW power splitters with remote coupling.

In this research, Si-based power splitters based on dual antiresonant reflecting optical waveguides (ARROW) with remote coupling by a separation distance of 30 μm were designed and realized. Characterization of the power splitters with different lengths of the coupling region was performed. Measurement characteristics of fabricated devices with the propagation losses lower than 1.

Design, fabrication, and characterization of Si-based ARROW photonic crystal bend waveguides and power splitters.

Silicon-based (Si-based) photonic crystal waveguide based on antiresonant reflecting optical waveguide (ARROW PCW) structures consisting of 60° bends and Y-branch power splitters were designed and first efficiently fabricated and characterized. The ARROW structure has a relatively large core size suitable for efficient coupling with a single-mode fiber. Simple capsule-shaped topography defects at 60° photonic crystal (PC) bend corners and Y-branch PC power splitters were used for increasing the broadband light transmission.

Ultracompact photonic crystal polarization beam splitter based on multimode interference.

We propose a theoretical design for a compact photonic crystal (PC) polarization beam splitter (PBS) based on the multimode interference (MMI) effect. The size of a conventional MMI device designed by the self-imaging principle is not compact enough; therefore, we design a compact PC PBS based on the difference of the interference effect between TE and TM modes. Within the MMI coupler, the dependence of interference of modes on propagation distance is weak for a TE wave and strong for a TM wave; as a result, the length of the MMI section can be only seven lattice constants.

Design and analysis of mach-Zehnder interferometer sensors based on dual strip antiresonant reflecting optical waveguide structures.

Mach-Zehnder interferometer sensors based on dual strip antiresonant reflecting optical waveguide (ARROW) structures are proposed. By adjusting the degree of structural symmetry to control the coupling behavior of the dual strip ARROW, an interferometric sensor without any bending structures can be realized. Operating principles and an analysis of the device are discussed in detail.

Double-layer networks with holographic optical switches.

The double-layer networks have the advantages of being strictly nonblocking and having a simpler routing algorithm, the lowest system insertion loss, a zero differential loss, fewer drivers, fewer interconnection lines, fewer crossovers, and the best signal-to-noise-ratio characteristic compared with any nondilated network. Using holographic optical switches to construct these networks not only eliminates all interconnection lines and crossovers but also reduces the number of drivers.