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Binary Phase Micro-Grating and Polarization Beam Splitter for Free-Space Micro Optical Pickups
2011/11/24
A pop-up binary-phase micrograting and a pop-up micro polarization beamsplitter, for potential use in micro-optical pickups, have been realized on a single silicon chip using a two-layer polysilicon a...
320 Gbit/s (8x40 Gbit/s) double-pass terrestrial free-space optical link transparently connected to optical fibre lines
double-pass terrestrial free-space optical link optical fibre lines
2015/8/6
World first demonstration of WDM 8x40 Gbit/s free-space transmission is presented in a terrestrial double-pass link, by using compact terminals, which allow direct optical connection to fibre links.
Variable Optical Attenuation using space-selectively crystallized fiber with second-order optical nonlinearity
Variable Optical Attenuation crystallized fiber second-order optical nonlinearity
2015/8/6
We have fabricated glass fibers with nonlinear crystalline phase in clad area by laser irradiation, and demonstrated variable optical attenuation by electro-optic effect using the space-selectively cr...