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Strain, Michael
University of Strathclyde
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2020High-Throughput Electrical Characterization of Nanomaterials from Room to Cryogenic Temperatures.
- 2020Gallium nitride micro-light-emitting diode structured light sources for multi-modal optical wireless communications systemscitations
- 2020Gigabit per second visible light communication based on AlGaInP red micro-LED micro-transfer printed onto diamond and glasscitations
- 2020Automated nanoscale absolute accuracy alignment system for transfer printingcitations
- 2019Hyperspectral imaging under low illumination with a single photon cameracitations
- 2019Gallium nitride micro-LED drive circuits for visible light communications
- 2014Integrated microspectrometer with elliptical Bragg mirror enhanced diffraction grating on silicon on insulatorcitations
- 2012Bistable micro-ring lasers with compact footprint and high output efficiencycitations
- 2012Photo-induced trimming of chalcogenide-assisted silicon photonic circuits
- 2007Integrated chirped Bragg gratings for dispersion control
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article
Bistable micro-ring lasers with compact footprint and high output efficiency
Abstract
Micro-ring lasers, with a minimum bend radius of 10 $mu{rm m}$, are presented that exhibit directional bistability and output powers up to 1.5 mW. In order to achieve devices with low threshold currents, mW output powers and directional bistability, the confilicting design constraints on the device are highlighted. Optimized adiabatic waveguide bends, bi-level evanescent couplers, and deeply etched ridge waveguide designs are presented in order to meet the stringent device design requirements. The optimized micro-ring laser devices exhibit directional extinction ratios of 25 dB and side-mode suppression ratios ${>}{rm 25}~{rm dB}$.