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A 4×25Gb/s ultra wide misalignment tolerance WDM transmitter with novel vertical grating coupler has been demonstrated on CMOS-compatible SOI Platform. The misalignment tolerance along the horizontal direction of grating coupler is as high as ±4μm.
A novel kind of optrode fabricated on a sapphire substrate is proposed for optogenetic applications in neuroscience. Eight thin-film neural electrodes and a GaN-LED are monolithically integrated on the surface of a sapphire shank. The LED is used for optogenetic stimulation and the multiple electrodes are used for simultaneous recording of neural activities. The output power density of the LED is...
We proposed and demonstrated a point-to-point photonic interconnect based on a perfectly vertical grating coupler. This bidirectional grating plays double roles of coupling and splitting at the optical input. Based on such a configuration, an electro-optical (E-O) modulator and photonic interconnect were demonstrated. To characterize the photonic interconnect, both the E-O modulator and germanium...
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