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Détails bibliographiques
Auteurs principaux: Hsu, Chung-Yu, Hsieh, Ping-Yen, Chiu, Hsun-Sung, Tung, Li-Jun, Yu, Chieh-Chih, Chen, Ko-Chi, Hong, Yu-Heng, Kuo, Hao-Chung, Chow, Chi-Wai, Chang, You-Chia
Format: Preprint
Publié: 2026
Sujets:
Accès en ligne:https://arxiv.org/abs/2603.26654
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Table des matières:
  • Focal plane arrays (FPAs) promise robust solid-state beam steering for LiDAR and free-space optical communications. However, the need for external collimation lenses hinders chip-scale compactness. Discrete switching between FPA elements further introduces blind spots and limits the number of resolvable points, restricting applications that require continuous tracking. Here, we demonstrate a silicon photonic beam steerer based on a metalens FPA that monolithically integrates the collimation lens on-chip. Thermo-optic prisms enable continuous fine-tuning, eliminating blind spots and tripling the number of resolvable points. Continuous steering over a 62° field of view is achieved while maintaining high beam quality, with an average sidelobe suppression ratio of 19 dB.