Kai Fu, Ziheng Ni, Liangjun Lu, Jianping Chen, Linjie Zhou. Integrated Multi-Beam Beamformer Enabled by Optical Delay Line-Based Butler Matrix. In European Conference on Optical Communications, ECOC 2025, Copenhagen, Denmark, September 28 - Oct. 2, 2025. pages 1-4, IEEE, 2025. [doi]
Abstract is missing.