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Waveguides formed with SiN ridges on thin-film LiNbO3 enable a platform for compact integrated electro-optic devices in the visible and infrared. We demonstrate Mach-Zehnder modulators at λ = 674 nm with VπL products < 0.5 V·cm, as well as ring resonators with Qs up to 340,000 at λ = 1590 nm.
We demonstrate fully confined waveguides in the ultraviolet spectrum, and present amorphous aluminum oxide as a viable waveguide platform for broad-spectrum integrated photonics with transmission from the infrared to the ultraviolet. Fabrication of aluminum oxide photonic structures and experimental results are discussed.
We report on work using visible integrated photonics to control trapped ions for quantum information processing. Planar radio frequency traps confine the ions while light is routed via visible waveguides and modulators and delivered to the ion by focusing grating couplers.
We report on an optically pumped vertical-external-cavity surface-emitting laser array exhibiting coherent coupling. Imaging of the far field shows interference consistent with in-phase coherent coupling, and a majority of total power is present in the central on-axis lobe. The physical mechanism of operation is attributed to diffractive coupling, wherein a small portion of the light emitting from...
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