Results 41 to 50 of about 4,667 (157)
Gallium arsenide optical phased array photonic integrated circuit
Optics Express, 2023 A 16-channel optical phased array is fabricated on a gallium arsenide photonic integrated circuit platform with a low-complexity process. Tested with a 1064 nm external laser, the array demonstrates 0.92° beamwidth, 15.3° grating-lobe-free steering range, and 12 dB sidelobe level.
Michael Nickerson +5 more
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Multi-Beam Focusing and Deflecting Characteristics of Liquid Crystal Optical Phased Array
PhotonicsAs a programmable optical device, a liquid crystal optical phased array (LCOPA) has many unique applications. Multi-beam fan-out is one of the novel application cases.
Xue Xu, Lin Xu, Xitong Liang, Jun Dai
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Time-Delayed Reservoir Computing Based on a Two-Element Phased Laser Array for Image Identification
IEEE Photonics Journal, 2021 We report on a simple approach of time-delayed reservoir computing (RC) based on a two-element phased laser array for image identification. Here the phased laser array with optical feedback and injection is trained according to the representative ...
Yu Huang +4 more
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Circular Optical Phased Arrays with Radial Nano-Antennas
Nanomaterials, 2022 On-chip optical phased arrays (OPAs) are the enabling technology for diverse applications, ranging from optical interconnects to metrology and light detection and ranging (LIDAR). To meet the required performance demands, OPAs need to achieve a narrow beam width and wide-angle steering, along with efficient sidelobe suppression.
Liu, Qiankun +5 more
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Fast and deterministic optical phased array calibration via pointwise optimisation
Light: Advanced Manufacturing, 2023 Owing to the structural errors in the optical phased array, an initial random phase reduces the quality of the deflection beam. The most commonly applied approach to phase calibration is based on adaptive optics. However, adaptive optimisation approaches
Jingwen Shan +4 more
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End-fire silicon optical phased array with half-wavelength spacing
APL Photonics, 2018 We demonstrate an optical phased array with emitting elements spaced at half the operational wavelength. The device is a one-dimensional array fabricated on an integrated silicon platform for operation at a wavelength of 1.55 μm.
Michael R. Kossey +2 more
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IEEE Photonics Journal, 2009 An InP/InGaAsP integrated 1 times 8 optical phased-array switch is designed, fabricated, and characterized for high-throughput broadband wavelength-division multiplexed (WDM) optical packet switching application.
Ibrahim Murat Soganci +2 more
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Photonics, 2020 Coherent beam combining can be used to scale optical power and enable mechanism-free beam steering using an optical phased array. Coherently combining multiple free-running lasers in a leader-follower laser configuration is challenging due to the need to
Lyle E. Roberts +3 more
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Integrated optical phased array
, 2023 The present disclosure relates to an integrated optical phased array (OPA) with a large field of view (FOV), possibly up to 180 degrees FOV. One embodiment regards a chip integrated optical phased array, comprising: a phase shifter array having N input light channels and configured for tuning the phase of the N input light channels; a beam splitter ...
Liu, Yong, Hu, Hao
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Packaging of 128-Channel Optical Phased Array for LiDAR
PhotonicsWe developed a complete packaging strategy for a 128-channel optical phased array (OPA) for Light Detection and Ranging (LiDAR) applications operating at a 1550 nm wavelength.
Abu Sied +4 more
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