Japan
- Proposed and implemented a potentially low-cost optical coupling method for silicon-on-insulator waveguides. Experimentally demonstrated < 0.8 dB loss and ±2 μm alignment tolerance - Co-invented novel assembly methods for silicon photonics chips (filed 3 patent applications) - Co-invented novel integration methods for active and passive single-mode polymer optical interconnects (filed 3 patent applications). - Performed process development for single-mode polymer optical waveguides made of several different material combinations and achieved to meet design specifications consistently - Led a work package of an EU-funded research project comprising 9 partners for 2 years - Contributed to research efforts on laser-written integrated photonic devices for optical communications
- Designed, fabricated and characterized novel integrated photonic switches. - Demonstrated a record-breaking InP photonic integrated circuit with a 1x100 monolithic optical switching capability. - Demonstrated high-bit-rate optical packet routing using integrated optical switches. - Participated in experiments on tunable optical buffering using fiber delay lines and optical switches. - Participated in the development of a photonic packaging assembly using silica planar lightwave circuits (PLC). - Carried out calculations on the power consumption of optical packet switching fabrics. - Published results in 20+ journal articles and conference presentations.
- Demonstrated optical routing of 160-Gb/s optical time-division multiplexed (OTDM) and 120-Gb/s wavelength-division multiplexed (WDM) packets with a power penalty less than 0.7 dB.
- Processed single-stage 1x8 InP phased-array optical switches.