We design and experimentally demonstrate an efficient fiber-chip edge coupler for NUV using symmetric double-tip taper and MMI-based coupler. We measure the coupling loss down to 2.85 dB at 407 nm on an alumina-on-ins...
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In this paper, we propose a QC-LDPC decoder architecture with low complexity as well as excellent decoding performance in CV-QKD systems, which employs the syndrome-assisted layered belief propagation decoding algorit...
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We design and experimentally demonstrate an efficient fiber-chip edge coupler for NUV using symmetric double-tip taper and MMI-based coupler. We measure the coupling loss down to 2.85 dB at 407 nm on an alumina-on-ins...
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We propose innovative polarization-insensitive optical switch fabrics on the 220-nm SOI platform, featuring polarization-insensitive switch elements, polarization-insensitive waveguide crossings, and TE0-TM0 mode exch...
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We demonstrate a fast-tunable microring filter using micro-transfer printing of a racetrack-shaped thin-film lithium niobate on the silicon nitride platform, achieving a loaded Q-factor exceeding 105 and a response ti...
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An efficient and large-tolerance (± 1.5 μm) coupler based on the micro-transfer printed thin-film lithium niobate on a silicon nitride platform is demonstrated with insertion loss of ~0.1 dB/facet within a 100 n...
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An ultrahigh-Q compact silicon racetrack resonator based on multimode waveguide bends (MWBs) is proposed and demonstrated. The MWB is defined by a combination of cubic and circular curves. The free spectral range (FSR...
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The bipolar spherical cavity SLED has been widely used in accelerator and high power microwave fields as it has high quality factor and is much tighter in volume than the traditional structure. However, due to its hig...
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We propose an optical tunable metasurface based on an array of silicon nanobars and a phase change material layer. The device can achieve a wide phase modulation range ( 2 rad) with low ref lectivity variation (under ...
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