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- W4308443496 abstract "Optical phased array (OPA) based on silicon photonics is considered as a promising candidate for realizing solid-state beam steering. However, the high refractive index contrast of the silicon waveguides leads to conventional silicon based OPA suffering from large random phase errors, which require complex post-processing such as time-consuming phase calibration. We propose and demonstrate a calibration-free silicon OPA with optimized optical waveguides width as well as the compact 90° waveguide bends beyond the single mode regime. By using grouped cascaded phase shifters, it is able to reduce the number of control electrodes from N to log2(N). A 16-channel OPA has been demonstrated with continuous beam steering over the field of view controlled by only four control voltages without any calibration." @default.
- W4308443496 created "2022-11-11" @default.
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- W4308443496 date "2022-11-16" @default.
- W4308443496 modified "2023-09-30" @default.
- W4308443496 title "Silicon optical phased array with calibration-free phase shifters" @default.
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- W4308443496 doi "https://doi.org/10.1364/oe.475350" @default.
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